ABM Reagents

<h2 dir="ltr">What Are Adenoviral Cloning Vectors?</h2>
 An adenoviral shuttle plasmid (transfer vector) contains a transgene expression cassette flanked by adenoviral genomic sequences that mediate recombination into the full adenoviral backbone genome. This shuttle plasmid is the starting point for constructing any custom recombinant adenovirus. Successful adenoviral studies begin with the appropriate cloning backbone. Choose a vector compatible with your development workflow.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
pShuttle backbone vectors, including pShuttle(+), pShuttle(-), and pShuttle-His variants for gene insertion and adenoviral construct assembly&nbsp;
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Tagged expression vectors such as pShuttle-His-18x and pShuttle-2A-RFP for co-expression and protein labeling studies
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Functional assay and reporter vectors, including pPromoter and pSiShuttle for transcriptional analysis and gene regulation&nbsp;
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Ready-to-use adenoviral DNA for simplified preparation of constructs
</li>
</ul>
<h2 dir="ltr"> How to Choose an Adenoviral Cloning Vector</h2>
 Promoter Selection CMV, EF1&alpha;, and CAG promoter options are available for driving transgene expression &mdash; CMV offers strong, broadly active expression, while EF1&alpha; and CAG can provide more consistent expression in certain cell types. Cloning Method Compatibility Gateway-compatible backbones enable site-specific recombination cloning without restriction enzymes, useful for parallel construct generation. Standard multiple cloning sites (MCS) with conventional restriction sites remain available for traditional cloning workflows. Deletion Configuration E1/E3-deleted Ad5 backbones are the standard configuration &mdash; E1 deletion renders the virus replication-deficient, while E3 deletion provides additional cloning capacity. Downstream Production Pathway The shuttle plasmid recombines into the full adenoviral genome during virus production &mdash; selecting a shuttle vector compatible with your packaging cell line and downstream amplification approach avoids compatibility issues later in the workflow. Reporter/Selection Inclusion Shuttle vectors with fluorescent reporters (GFP) or selection markers built into the cassette simplify confirmation of successful cloning and subsequent virus packaging steps. 
<h2 dir="ltr"> Specifications Context</h2>
 After cloning the transgene into an adenoviral shuttle plasmid, the construct is recombined into the full adenoviral backbone genome in packaging systems or recombination-based workflows, followed by amplification in complementing cell lines to generate recombinant adenoviral stocks. Gateway-compatible shuttle vectors enable transfer of validated entry clones into the adenoviral system without re-cloning. Sequence verification of the shuttle construct by restriction analysis or sequencing is recommended before recombination to ensure construct integrity. Product availability reflects MBP&rsquo;s catalogue as of mid-2026. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP for guidance on shuttle vector selection based on promoter configuration and experimental design requirements.

Cloning Vectors

Selection-Drug Killing Curve

Adenovirus-2-Expression-Protocol

pLuc Vector

A015 by Applied Biological Materials is pLuc Vector — a 5.0 µg Adeno-5™ adenoviral shuttle plasmid with a luciferase reporter and MCS upstream for promoter subcloning. For construction of recombinant adenoviral promoter-luciferase reporter vectors. Clone any promoter into MCS to drive luciferase. Store at −20°C or below.

Unit Quantity

Vector

Note

Shipping Condition

<h2>What is Chemicals as a reagent category?</h2>
&nbsp;
Chemicals covers the broad range of chemical and biochemical reagents used across molecular biology, cell biology, biochemistry, and general laboratory work: biochemically relevant compounds like vitamins, buffer salts, amino acids, and enzyme substrates; general laboratory chemicals including solvents, acids, bases, and inorganic salts; and research-grade specialty chemicals for specific applications. Unlike application-specific categories such as Epigenetics or Electrophoresis, which organize reagents by research workflow, Chemicals organizes by the nature of the material itself.
&nbsp;
<h2 dir="ltr">What you'll Discover:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/reagents/chemicals/biochemical-reagents" title="Biochemical Reagents:">Biochemical Reagents:</a> High-quality metabolic inducers such as IPTG (G116), L-Arabinose (A2001-ZYM), and Cumate (CH065), along with essential buffers and enzyme stabilizers like TRIS (CH059), DTT (G025), and PMSF (G034).
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/reagents/chemicals/inorganic-reagents-and-compounds" title="Inorganic Reagents &amp; Compounds:">Inorganic Reagents &amp; Compounds:</a> Ultra-pure essential chemical substances like Sodium Azide (CH052) designed for accurate laboratory buffer enhancement and sample conservation methodologies.
</li>
<li dir="ltr" aria-level="1">
<a href="https://mbpinc.net/reagents/chemicals/detergents-and-surfactants" title="Detergents &amp; Surfactants:">Detergents &amp; Surfactants:</a> Enhanced cell lysis and denaturing agents featuring 20% SDS (CH100) and concentrated 10X Tris-Glycine-SDS Buffer (CH125) for protein electrophoresis setup.
</li>
</ul>
&nbsp;
<h2>How to navigate Chemicals</h2>
&nbsp;
Start with Biochemical Reagents for biologically relevant compounds
Biochemical Reagents covers the subset of the catalog most relevant to molecular and cell biology workflows: vitamins and cofactors, buffer salts and ready-to-use buffer solutions, amino acids, and other compounds with specific roles in biological systems.
Check purity grade requirements before ordering a research chemical
Research-grade chemicals vary in purity from technical grade to ACS-certified, HPLC-grade, and molecular biology grade, with the appropriate grade depending on how the chemical is used; cell culture and enzymatic applications generally require higher purity than non-biological analytical or general lab use.
Confirm whether your chemical needs are better served by a specialty category
Some research chemicals belong more naturally in application-specific sections of the catalog, such as chromatin immunoprecipitation buffers in Epigenetics or gel running buffers in Electrophoresis, while general-purpose chemicals and biochemical reagents not tied to a single workflow type belong in this Chemicals branch.
Consider bulk ordering for high-consumption research chemicals
Common research chemicals like buffer salts, solvents, and vitamins are used in large quantities by active research labs, and bulk pricing can represent meaningful savings on frequently replenished reagents.
Look for certificates of analysis when accuracy matters for your application
Quantitative applications, including analytical standards, enzyme kinetics studies, and defined cell culture supplementation, require chemicals with documented lot-specific purity and concentration, typically confirmed by certificate of analysis provided with each lot.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Research-grade purity designations for laboratory chemicals follow widely adopted convention systems including ACS grade (meets American Chemical Society purity specifications), HPLC grade (verified purity for chromatographic applications), and molecular biology grade (certified free from nuclease, protease, and other activities that would interfere with molecular biology applications). As of 2026, pre-made, ready-to-use solutions for common biochemical reagents like PBS, HEPES buffer, and Tris-HCl continue to see growing adoption over powder or concentrated formats in labs prioritizing convenience and reproducibility over reagent cost per use.
<a href="https://mbpinc.net/contact-us">Reach out to the friendly team at MBP</a> now to get a quote for your particular research needs.

Chemicals

MSDS

PMSF

PMSF G034 — phenylmethylsulfonyl fluoride, irreversible serine protease inhibitor. MW 174.19 g/mol (C₇H₇FO₂S). Working concentration 0.1–1 mM; ~30–60 min aqueous half-life — add fresh at lysis. For protein extraction, Western blot, and immunoprecipitation sample preparation. RUO.

Purity

Storage Condition

Guarantee

Shipping condition

<h2 dir="ltr">What Are AAV Control &amp; Reporter Constructs?</h2>
 Establishing reliable experimental controls is critical in AAV research because transduction efficiency varies substantially by serotype, cell type, multiplicity of infection (MOI), and batch-to-batch variation in viral preparation quality. Matched AAV control and reporter constructs provide the reference point for interpreting experimental results.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Promoter-Specific Blank Vectors used for baseline control, utilize neuron-specific hSyn promoters and high-purity plasmids&nbsp;
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Serotype-Matched Blank Viruses for precise tissue-targeting validation. Available pre-packaged in serotypes 1 through 11
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Bioluminescent Reporter Systems for sensitive measurement of viral delivery.&nbsp; And gene expression featuring luciferase and SV40-luc markers
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Fluorescent Control Constructs carry circ-GFP, GFP, and CBh-gcGFP, for real-time transduction tracking.
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Circular RNA Control Plasmids for advanced non-coding RNA research.&nbsp;
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Cloning-Ready Expression Backbones for selected gene insertion and viral packaging workflows using ampicillin-resistant blank vectors
</li>
</ul>
<h2 dir="ltr"> How to Choose AAV Control &amp; Reporter Constructs </h2>
 Serotype and Backbone Matching The control construct should use the same AAV serotype, ITR configuration, and promoter as the experimental construct, ensuring transduction efficiency differences reflect the transgene rather than vector or serotype variation. Fluorescent Reporter Choice GFP and mCherry reporters allow confirmation of transduction by fluorescence microscopy or flow cytometry, with mCherry offering a red-channel option for multiplexed experiments. Luciferase and Dual-Reporter Options Firefly luciferase provides quantitative bioluminescent transduction confirmation; dual reporter systems (e.g., fluorescent + luciferase) allow both visual and quantitative readouts from the same construct. Empty Vector Baseline An empty AAV vector &mdash; same ITRs, serotype, and promoter, no transgene &mdash; establishes the baseline effect of AAV capsid delivery and innate immune activation, independent of the gene of interest. Batch-to-Batch Variation Controls Because AAV preparation quality can vary between batches, including a transduction-efficiency control (e.g., GFP reporter) alongside each new batch of experimental AAV helps confirm comparable functional titer. 
<h2 dir="ltr"> Specifications Context</h2>
 AAV transduction can activate innate immune sensing pathways and, at high vector doses, induce cellular stress responses independently of the transgene. A matched empty vector or reporter control sharing the same serotype and promoter as the experimental construct helps distinguish vector-related effects from genuine transgene-specific phenotypes. Because AAV infectivity can vary between preparations, reporter-based transduction assessments are commonly used to verify functional performance before experimental studies. For in vivo applications, pilot reporter studies can help confirm tissue targeting and delivery efficiency before larger cohorts are committed. Product availability reflects MBP's catalogue as of mid-2026. 
&nbsp;
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP today to get high-quality control/reporter vectors for your lab.

Control/Reporter

Lentiviral Vector Amplification Protocol

AAV Infection Guideline

AAV Packaging Protocol

Lentivector Packaging Protocol

Lentivirus Infection Protocol

pNV-CMV-circ-GFP Control Vector

pNV-CMV-circ-GFP Control Vector (CIR001) by Applied Biological Materials is a 1.0 µg insert-empty non-viral plasmid with CMV promoter and GFP reporter, designed as a negative control for circRNA expression experiments. Store at –20°C or below.

Vector Map

System

<h2>What Are RNA-Modifying Enzymes?</h2>
&nbsp;
RNA-modifying enzymes act on RNA substrates to add, remove, or chemically alter nucleotides and terminal structures. Key enzymes in this category include poly(A) polymerase (PAP), which adds untemplated adenosine residues to RNA 3' ends; T4 RNA Ligase 1, which joins single-stranded RNA; T4 RNA Ligase 2, which joins nicked duplex RNA; vaccinia virus capping enzyme (VCE), which adds a 7-methylguanosine cap to the 5' end of mRNA; 2'-O-methyltransferase, which modifies the cap to generate a Cap 1 structure; and RNA methyltransferases such as METTL3/METTL14 complex used in m6A epitranscriptomics research. These enzymes are foundational tools in the fast-growing field of mRNA-based therapeutics and diagnostics, as well as long-read sequencing library construction. Select RNA-modifying enzymes based on RNA substrate type (single-stranded, duplex, capped), required end structure, and downstream application (therapeutic vs. research grade).
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
T7 RNA Polymerase: The rapid powerhouse of in vitro transcription, ideal for producing large quantities of RNA from DNA templates for probes or functional mRNA research.
</li>
<li dir="ltr" aria-level="1">
Poly(A) Polymerase (Yeast &amp; E. coli): The definitive stabilizing agent, attaching adenosine tails to the 3' terminus of transcripts to enhance their longevity and translation efficacy&mdash;a crucial element for precise library preparation.
</li>
</ul>
&nbsp;
<h2>How to Choose RNA-Modifying Enzymes</h2>
&nbsp;
Poly(A) tailing vs. RNA ligation.
Poly(A) polymerase is used when a 3'-poly(A) tail is needed for mRNA stabilization, translation enhancement, or as a primer binding site for oligo(dT)-based cDNA synthesis. T4 RNA Ligase 1 (single-strand-specific) is used for adaptor ligation to RNA 3' ends in small RNA sequencing library preparation. T4 RNA Ligase 2 truncated version (paired with a splint oligonucleotide) gives higher efficiency adaptor ligation with less secondary structure bias.
mRNA capping
5'-cap structures protect mRNA from exonucleolytic degradation and are recognized by eIF4E for ribosome recruitment. Vaccinia Capping Enzyme adds a Cap 0 structure; co-treatment with 2'-O-methyltransferase (mRNA Cap 2'-O-Methyltransferase) converts Cap 0 to Cap 1, which reduces innate immune recognition -- critical for therapeutic mRNA applications. Co-transcriptional capping with CleanCap analogs avoids the separate capping step.
Epitranscriptomics
m6A RNA methyltransferases (METTL3, METTL14, WTAP complex) and demethylases (FTO, ALKBH5) are used to add or remove N6-methyladenosine modifications in cellular RNA for functional studies. These enzymes require S-adenosylmethionine (SAM) as a methyl donor and are supplied at a microgram scale for biochemical assays.
RNase inhibitor pairing
All RNA-modifying enzyme reactions require an RNase-free environment. Include RNase inhibitor protein at 0.5-2 U per microliter in reactions without heat-inactivation capability. Use DEPC-treated water and certified RNase-free tubes and tips for all RNA work.
Application scale
Research-grade RNA-modifying enzymes are available in standard unit sizes for individual experiments. For manufacturing-adjacent workflows (large-scale IVT for mRNA vaccines or CAR-T cell therapy applications), contact MBP for volume pricing and GMP-compatible sourcing options.
&nbsp;
<h2>Specifications Context</h2>
&nbsp;
Poly(A) polymerase activity is measured as the amount of enzyme incorporating 1 nmol of AMP into acid-precipitable RNA in 30 minutes at 37 degrees C. Typical poly(A) tail lengths of 100-250 nucleotides are generated in 10-20 minute reactions at 37 degrees C with 1 mM ATP and 2-5 U of enzyme per microgram of RNA. Vaccinia Capping Enzyme reaction efficiency exceeds 95% for IVT transcripts of 500-5000 nt when used at recommended ratios; verify by LC-MS or HPLC analysis for therapeutic applications. Co-transcriptional Cap 1 capping using modified trinucleotide cap analogs is increasingly adopted in mRNA manufacturing to eliminate separate enzymatic capping steps.&nbsp;
&nbsp;
Prepared to customize your transcripts? <a href="https://mbpinc.net/contact-us">Contact the MBP team</a> today for a personalized quote on our RNA-modifying tools.

RNA-modifying enzymes

DataSheet

Poly(A) Polymerase, E. coli

E099 by Applied Biological Materials is an E. coli Poly(A) Polymerase at 1 U/µl (25 U / 25 µl) with 10X Reaction Buffer and 10 mM ATP. Catalyzes template-independent, sequence-independent 3' poly(A) tail addition to any unprotected RNA terminus. For poly(A) tailing of RNA for cDNA synthesis, RNA-seq library prep, IVT translation enhancement, RNA labeling, and circRNA enrichment. Store at &minus;20°C.

Concentration

Components

Storage Buffer

Caution

Poly(A) Polymerase, Yeast

E017 by Applied Biological Materials is Poly(A) Polymerase from yeast at 1 U/µL, supplied as 100 U (100 µL) with 5× Buffer, 25 mM MnCl₂, and 10 mM ATP. Template-independent poly(A) addition to RNA 3′ ends; single dA with 3′-dATP (cordycepin). Superior to E. coli for long RNA and oligonucleotide labeling. Store at −20°C.

<h2 data-section-id="3d1466" data-start="0" data-end="47">What are cell culture buffers and solutions?</h2>
&nbsp;
Cell culture buffers and balanced salt solutions are isotonic solutions used to wash, dilute, transport, and temporarily maintain cells outside of complete growth media. Unlike culture media, these solutions do not contain the nutrients and growth factors required for cell proliferation. Instead, their primary role is to maintain physiological pH and osmotic balance while protecting cells from stress during handling and experimental procedures.
The most commonly used cell culture buffers include PBS (Phosphate-Buffered Saline), DPBS (Dulbecco's Phosphate-Buffered Saline), HBSS (Hank's Balanced Salt Solution), and EBSS (Earle's Balanced Salt Solution). These solutions are widely used in cell washing, passaging, tissue dissociation, sample preparation, immunoassays, and short-term cell maintenance.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Standard Isotonic Buffers to wash cells, maintain osmotic balance, and dilute reagents.</li>
<li dir="ltr" role="presentation">Biological Buffering Agents for metabolic support and pH maintenance.</li>
<li dir="ltr" role="presentation">Cell Dissociation &amp; Neutralizing Reagents maintain high cell viability and are used for cell recovery, detachment, and passaging</li>
<li dir="ltr" role="presentation">Surface Coating &amp; Matrix Solutions with high-grade gelatin for improved cell attachment.</li>
<li dir="ltr" role="presentation">Insulin-Transferrin-Selenite (ITS), Bovine Serum Albumin (BSA), and high-purity Holo-Transferrin for enhanced cell growth and viability</li>
</ul>
&nbsp;
<h2 data-section-id="1cuz7jf" data-start="1165" data-end="1216">How to choose cell culture buffers and solutions</h2>
&nbsp;
PBS vs. DPBS PBS is a simple sodium chloride/phosphate buffer solution. DPBS adds potassium chloride and may include calcium, magnesium, glucose, and pyruvate depending on formulation. The practical difference between PBS and DPBS formulations is minimal &mdash; both maintain pH 7.2-7.4 and osmolality ~280-315 mOsm/kg and are functionally interchangeable for standard washing, immunoassay, and sample preparation applications. If your protocol is sensitive to minor salt concentration differences, compare specific formulation sheets rather than assuming equivalence. &nbsp; Calcium/magnesium-free vs. calcium/magnesium-containing Calcium and magnesium facilitate cell-cell and cell-surface adhesion. Calcium/magnesium-free PBS, DPBS, or HBSS is required: before enzymatic dissociation (residual Ca/Mg inhibits trypsin, requiring more enzyme and harsher conditions &mdash; the most common cause of poor trypsinization results), for rinsing EDTA or other chelators from culture, and for minimizing cell-cell aggregation during gentle dissociation or suspension recovery. Calcium/magnesium-containing formulations support cell binding and clumping, useful for transport applications or attachment-dependent procedures. &nbsp; HBSS/EBSS vs. PBS/DPBS for short-term maintenance HBSS and EBSS include sodium bicarbonate buffering and may include glucose, providing meaningfully better short-term physiological support for cells &mdash; particularly under CO₂ atmosphere &mdash; than the simpler PBS/DPBS formulations. Use HBSS/EBSS when cells need to remain viable for a meaningful period outside complete growth media (tissue dissociation workflows, transport, short-term holding). Use PBS/DPBS for washing steps, immunoassay/Western blot dilutions, and sample preparation where osmotic balance &mdash; not metabolic support &mdash; is the requirement. &nbsp; Phenol red and glucose/pyruvate variants DPBS and HBSS are available with or without phenol red and with or without glucose/pyruvate, allowing matching to downstream applications (phenol red-free for fluorescence work; glucose/pyruvate-containing for short-term metabolic support). &nbsp; Endotoxin and quality testing Regular quality testing of balanced salt solutions includes osmolality, pH, stability, and screening for endotoxins and bacterial/fungal contamination. For immune cell handling and other endotoxin-sensitive applications, premium formulations document endotoxin levels below 0.005 EU/mL &mdash; a meaningfully tighter specification than standard research-grade buffers. &nbsp; Powder vs. liquid format Powdered balanced salt solutions are manufactured without sodium (to avoid sodium bicarbonate off-gassing during storage), requiring sodium bicarbonate addition, pH adjustment, and sterile filtration at time of preparation &mdash; following the same principle as powdered classic media.Specifications context
&nbsp;
<h2>Specifications context</h2>
&nbsp;
Most balanced salt solutions are formulated to maintain physiological conditions with a pH of approximately 7.2&ndash;7.4 and osmolality ranging from about 280&ndash;315 mOsm/kg. These properties help minimize osmotic stress and maintain cell viability during handling.
Calcium- and magnesium-free DPBS remains one of the most commonly specified buffers for cell dissociation workflows because it improves the effectiveness of trypsin and other detachment enzymes. HBSS and EBSS continue to be widely used when short-term metabolic support is required outside complete growth media.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today to get high-purity buffers and solutions for your lab.

Buffers & Solutions

Buffers/Salts

Polybrene

G062 by Applied Biological Materials is Polybrene (hexadimethrine bromide) at 0.8 mg/mL in a 1 mL ready-to-use solution — a cationic polymer that enhances retroviral and lentiviral transduction efficiency by neutralizing charge repulsion between viral particles and the cell surface. Store at –20°C.

Sterility

<h2>What are L-glutamine and amino acid supplements?</h2>
&nbsp;
L-glutamine and amino acid supplements are cell culture additives used to support cellular metabolism, growth, viability, and biosynthesis. They provide nutrients that may become depleted during culture or are required in greater quantities than those supplied by basal media alone. These supplements are commonly added to media such as DMEM, RPMI 1640, MEM, and DMEM/F-12 to optimize cell growth and maintain healthy cultures.
L-glutamine is one of the most important supplements in mammalian cell culture because it serves as a major energy source and is required for protein synthesis, nucleotide production, and glutathione synthesis. However, because free L-glutamine is unstable in solution and gradually breaks down into ammonia and pyroglutamate, many laboratories use stabilized alternatives such as GlutaMAX (L-alanyl-L-glutamine) for extended culture applications.
&nbsp;
<h2>What you will find:</h2>
&nbsp;
<ul>
<li>L-Glutamine stable formulations for sourcing of essential nitrogen</li>
<li>Non-Essential Amino Acids (NEAA) for growth media enhancement</li>
<li>Synthetic Polymer Coatings Poly-L-Ornithine and Poly-L-Lysine solutions for better cell attachment.</li>
<li>Extracellular Matrix Proteins used for cell adhesion and include high-purity Fibronectin and Vitronectin coating reagents</li>
<li>Adhesion Promotion Reagents for improving the surface properties of culture vessels.</li>
</ul>
&nbsp;
<h2>How to choose L-glutamine and amino acid supplements</h2>
&nbsp;
L-glutamine concentration and format
Most mammalian cell culture systems use L-glutamine concentrations between 2&ndash;6 mM, although requirements vary depending on the medium and cell type. It is commonly supplied as:
<ul>
<li>USP-grade powder for custom media preparation</li>
<li>200 mM liquid stock solutions for direct supplementation</li>
</ul>
Liquid stocks should be aliquoted and stored frozen to minimize repeated freeze-thaw cycles and preserve stability.
Understanding glutamine degradation
Free L-glutamine gradually breaks down in aqueous solution through a non-enzymatic process that produces ammonia and pyroglutamate. This degradation accelerates with increasing temperature, storage time, and exposure to common cell culture buffer systems.
Ammonia accumulation can negatively affect cell growth, viability, productivity, and experimental reproducibility, particularly during long culture periods without media replacement.
GlutaMAX and stable glutamine alternatives
GlutaMAX (L-alanyl-L-glutamine) is a stabilized dipeptide form of glutamine designed to resist degradation in culture media. Once taken up by cells, it is converted into usable glutamine while maintaining greater stability during incubation.
<ul>
<li>Reduced ammonia accumulation</li>
<li>Improved media stability</li>
<li>Better performance in long-term cultures</li>
<li>Less frequent media replacement requirements</li>
</ul>
For most applications, GlutaMAX can directly replace standard L-glutamine without protocol modifications.
MEM non-essential amino acids (NEAA)
NEAA supplements provide amino acids that cells can synthesize themselves but may benefit from receiving directly from the culture medium. Supplementation reduces the metabolic burden of amino acid production and often improves growth rates and cell viability.
NEAA solutions are typically supplied as 100X concentrates and diluted to 1X working concentration.
HT supplement
HT supplement contains hypoxanthine and thymidine and is commonly used following HAT selection during hybridoma production. It supports nucleotide synthesis through salvage pathways while cells recover from selection pressure.
MEM vitamin solution
Vitamin supplements provide additional growth-supporting micronutrients that may become limiting during prolonged culture or in demanding applications. These supplements are often used alongside amino acid supplementation to enhance culture performance.
&nbsp;
<h2>Specifications context</h2>
&nbsp;
The standard L-glutamine concentration used in many mammalian culture systems is approximately 2 mM, though actual requirements vary by medium formulation and cell type. Free L-glutamine remains stable as a dry powder and frozen stock solution but degrades progressively once added to liquid media.
Stabilized glutamine products such as GlutaMAX have become increasingly common because they maintain glutamine availability while minimizing ammonia accumulation during incubation. These formulations are particularly valuable in long-duration experiments and high-density culture systems.
<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP today to get research-grade supplements for your lab.

L-Glutamine & Amino Acids

Poly-L-Lysine Coating Solution (0.1%)

Poly-L-Lysine Coating Solution TM061 — 0.1% (w/v), 25 ml, ready to use. Positively charged synthetic polypeptide that increases electrostatic attraction between culture surface and cells, improving adhesion of neurons and poorly adherent primary cells. Sterility tested, QC validated. Store 2–8 °C; do not freeze. Stable 12 months.

Appearance

Disclaimer

Poly-L-Ornithine Coating Solution (0.1 mg/ml)

Poly-L-Ornithine Coating Solution 0.1 mg/ml (TM062) by Applied Biological Materials is a 50 ml sterile ready-to-use solution for coating tissue culture surfaces to promote cell attachment via electrostatic attraction. Lot-tested for sterility, pH, osmolality, and endotoxin. Store at 2–10°C; do not freeze. Stable 6 months from shipment.

pPromoter Vector

A010 by Applied Biological Materials is the pPromoter Vector — a 5.0 µg Adeno-3™ adenoviral shuttle plasmid with multiple cloning sites for subcloning both a user-supplied promoter and a gene of interest. For custom-promoter adenoviral expression vector construction with A001 backbone. Store at −20°C or below.

<h2 data-section-id="1h8mvlk" data-start="0" data-end="45">What are primary cell culture medium kits?</h2>
&nbsp;
Primary cell culture medium kits are complete, ready-to-prepare culture systems that combine a cell-type-specific basal medium with the supplements required for optimal growth and maintenance of primary cells. Unlike purchasing media, serum, growth factors, and antibiotics separately, these kits provide all components in validated proportions, ensuring that the medium performs as intended for a specific primary cell type.
A typical kit includes a basal medium, a cell-specific growth supplement, an antibiotic component where appropriate, and fetal bovine serum (FBS) or an equivalent supplement when required. The components are designed to be combined directly according to the manufacturer's instructions, reducing preparation errors and improving consistency between experiments.
&nbsp;
<h2 data-path-to-node="5">What you will find:</h2>
&nbsp;
<ul data-path-to-node="6">
<li style="font-family: arial, helvetica, sans-serif;">
Tissue-specific primary cell culture medium kits
</li>
<li style="font-family: arial, helvetica, sans-serif;">
Specialized growth media for endothelial and epithelial cells
</li>
<li style="font-family: arial, helvetica, sans-serif;">
Workflow systems for thawing, plating, and maintenance of hepatocytes&nbsp;
</li>
<li style="font-family: arial, helvetica, sans-serif;">
Differentiation media for progenitor and stem cells&nbsp;
</li>
<li style="font-family: arial, helvetica, sans-serif;">
Serum-free bioprocessing and cryopreservation reagents
</li>
<li style="font-family: arial, helvetica, sans-serif;">
Targeted fibroblast, smooth muscle, and myocyte growth kits
</li>
</ul>
&nbsp;
<h2 data-section-id="1nip7jz" data-start="1066" data-end="1116">How to choose a primary cell culture medium kit</h2>
&nbsp;
Match the kit to the cell type
Primary cells have highly specialized nutritional and signaling requirements. Kits are available for endothelial cells, hepatocytes, astrocytes, epithelial cells, fibroblasts, stem cells, and many other cell types. Selecting a kit specifically designed for the target cell type is essential for maintaining normal cellular function and morphology.
Serum-containing vs. serum-free formulations
Traditional kits often include FBS as a source of growth factors and nutrients. Serum-free and xeno-free kits replace animal-derived components with defined supplements, reducing variability and supporting applications that require animal-component-free culture conditions.
Complete kit convenience
Most kits provide all major components needed to prepare complete culture medium. This eliminates the need to source multiple reagents individually and helps ensure that supplements are used at the correct concentrations.
Antibiotic inclusion
Many primary cell culture kits include antibiotics to reduce contamination risk during routine culture. However, some specialized formulations, particularly those designed for immune cells and mononuclear cells, are intentionally supplied without antibiotics because these additives can influence cellular responses and experimental outcomes.
Storage and preparation
Kit components are typically stored separately until needed. Basal media and supplements are usually refrigerated, while serum components may require frozen storage before use. Once mixed into complete medium, shelf life is generally shorter than that of the individual components, making it advisable to prepare only the amount needed for near-term use.
Specialized differentiation systems
Some kits are designed not only for maintenance but also for cellular differentiation. These systems may include multiple supplements added sequentially throughout a protocol to guide stem cells or progenitor cells through defined developmental stages.
<h2 data-section-id="dydsco" data-start="3131" data-end="3173">&nbsp;</h2>
<h2 data-section-id="1fljvas" data-start="4061" data-end="4086">Specifications context</h2>
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Primary cell culture medium kits are commonly supplied in a format consisting of a basal medium bottle accompanied by concentrated supplements and serum components that are added directly before use. This approach simplifies preparation while ensuring that all components have been optimized and tested together.
<a href="https://mbpinc.net/contact-us" title="Contact the expert team at MBP">Contact the expert team at MBP</a> today and get optimized primary cell culture medium kits for your lab.

Primary Cell Culture Medium kits

Flyer

Preadipocyte Medium Kit

Preadipocyte Medium Kit TM048 (ABM) — low-serum, antibiotic-free medium for primary preadipocyte culture. 450 ml basal medium (TM048) + 50 ml supplement mix (TM048-S). Full QC tested. Total 500 ml complete medium, stable 30 days post-supplementation. Store basal at 4–8 °C; supplement at −20 °C.

<h2 dir="ltr">What Are Retroviral Cloning Vectors?</h2>
 The transfer plasmid defines the cargo, promoter, and selection strategy of a retroviral vector system. Selecting the right cloning vector backbone determines transgene expression level, integration stability across cell types, and compatibility with available packaging cell lines. Efficient vector development starts with the right cloning backbone. Choose a retroviral vector that supports your research needs.
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<h2 dir="ltr">What you will find:</h2>
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<ul>
<li data-section-id="po69uo" data-start="658" data-end="756">Retro-Combo Mix vectors for streamlined retroviral construct assembly and expression workflows</li>
<li data-section-id="5ibmf5" data-start="757" data-end="857">pRetro-E1 and pRetro-E2 plasmid backbones for retroviral vector construction and gene expression</li>
<li data-section-id="1y6pp3s" data-start="858" data-end="961">pRetro-E1-HA and pRetro-E2-His tagged vectors for protein detection and downstream characterization</li>
<li data-section-id="gs2x4g" data-start="962" data-end="1091">Retro-Easy1, Retro-Easy2, Retro-Easy-HA, and Retro-Easy-His systems for flexible construct design and expression optimization</li>
<li data-section-id="fzbhcl" data-start="1092" data-end="1178">Pack-Easy Cells for efficient retroviral packaging and vector production workflows</li>
</ul>
<h2 dir="ltr"> How to Choose a Retroviral Cloning Vector</h2>
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Backbone and Expression Architecture
Retroviral cloning vectors in the Retro-Easy and pRetro-E systems utilize CMV-driven expression cassettes for transgene expression following genomic integration. Backbone configuration influences expression consistency, cloning flexibility, and compatibility with downstream packaging workflows.
Promoter Configuration
CMV-based internal promoters provide strong, constitutive expression across a wide range of mammalian cell types. Expression levels may vary depending on the integration site and chromatin environment following retroviral integration.
Packaging Workflow Compatibility
Retroviral cloning vectors are designed for use in standard replication-incompetent packaging systems, where transfer plasmids are supplied alongside packaging components to generate infectious retroviral particles for transduction of dividing cells.
Selection and Tag Options
Vector variants include antibiotic selection markers and epitope-tagged formats (HA, His) to support downstream detection, purification, or functional validation of expressed proteins.
Insert Size Considerations
Gamma-retroviral transfer vectors generally support moderate-sized inserts suitable for most cDNA and reporter constructs, with efficiency influenced by insert length and sequence composition. 
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<h2 dir="ltr">Specifications Context</h2>
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Retro-Easy and pRetro-E vector systems are based on CMV-driven retroviral transfer backbones designed for stable gene delivery in actively dividing mammalian cells. Following packaging, replication-incompetent retroviral particles mediate genomic integration of the transgene, enabling stable expression across cell divisions. Available formats include untagged, HA-tagged, and His-tagged expression vectors, as well as modular backbone variants for flexible construct design. Pack-Easy Cells provide a dedicated packaging platform for efficient retroviral particle production and consistent vector output. These systems support applications in gene expression analysis, functional studies, and stable cell line generation.
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<a href="https://mbpinc.net/contact-us">Contact the expert team</a> at MBP and find the right Retrovirus Cloning Vectors for your lab.

Retrovirus Expression Systems Protocol

pRetro-E1

E-514 by Applied Biological Materials is the pRetro-E1 retroviral transfer vector (10 µg) of the Retro-Easy1™ system, featuring an MCS for straightforward ORF cloning and a Neomycin (G418) resistance marker for stable cell line selection. Package with abm's retroviral packaging system for high-titer retrovirus production and stable gene delivery in dividing mammalian cells. Store at &minus;20°C.

pRetro-E1-HA

E-516 by Applied Biological Materials is a 10 µg pRetro-E1-HA retroviral expression plasmid for the Retro-Easy-HA™ System. HA-tagged stable gene delivery in dividing cells; anti-HA WB/IF detection without gene-specific antibody. Use with E-510 Retro-Combo Mix for packaging. Not for resale. Store at −20°C or below.