<h2 dir="ltr">What Are AAV miRNA Negative Controls?</h2>
 MicroRNA (miRNA) research requires matched controls that enter the same delivery pathway as experimental constructs. AAV-delivered miRNA controls are particularly important for experiments in primary cells and in vivo models, where conventional transfection-based controls would not reflect the same delivery-related effects. The right miRNA control ensures accurate interpretation of miRNA-mediated effects. Choose a control matched to your expression and analysis 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">
Serotype-Specific AAV miRNA Controls as blank control viruses used for precise tissue tropism matching.
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
GFP-Tagged miRNA Control Viruses use fluorescent protein markers for successful transduction verification.
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
pAAV-mir-GFP-hGH-amp Plasmids used for reliable cloning and feature ampicillin resistance and hGH polyadenylation&nbsp;
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
miRNA-OFF Blank Control Vectors used to validate miRNA inhibition specificity&nbsp;
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
Ready-to-Use Control Virions used in comparative gene silencing for immediate use.
</li>
</ul>
<h2 dir="ltr"> How to Choose an AAV miRNA Negative Control</h2>
 Delivery Pathway Matching When miRNA is delivered via AAV, the control must also be AAV-delivered &mdash; to account for capsid-mediated innate immune activation and viral DNA sensing effects that alter cellular transcription independently of the miRNA sequence itself. Mimic vs. Inhibitor Format Non-targeting miRNA mimic controls (gain-of-function studies) and non-targeting miRNA inhibitor controls (loss-of-function studies) require different control designs matching the experimental approach. Serotype and Promoter Matching The AAV miRNA control should share the same serotype and promoter as the experimental AAV-delivered miRNA construct to ensure comparable tissue tropism and expression timing. In Vivo vs. In Vitro Application AAV-delivered miRNA controls are particularly relevant for in vivo gain-of-function or loss-of-function studies, where AAV's broad tissue tropism and long-term expression make it the delivery method of choice. Validation of Off-Target Effects As with other RNAi-pathway controls, non-targeting designs should be validated to have minimal homology to known miRNA targets in the relevant species. 
<h2 dir="ltr"> Specifications Context</h2>
&nbsp;
When miRNA is delivered via AAV, the control should also be AAV-delivered to account for vector-related effects such as capsid interactions and cellular responses to the viral genome. This distinguishes AAV-based controls from transfection-derived controls, which do not capture AAV-specific delivery effects. Matching the serotype and promoter configuration of the control vector to the experimental construct helps ensure that observed phenotypes are attributable to the miRNA rather than differences in vector design. Researchers planning in vivo studies should obtain control and experimental AAV preparations with comparable production and quality metrics where possible, as differences in titer or purity can introduce unwanted variability. Including both an AAV-delivered control and, where appropriate, an untreated cohort can further aid interpretation of miRNA-specific effects. 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 Inc. to discuss the most suitable AAV miRNA control constructs for your study and request a quote tailored to your research requirements.

miRNA Control

Lentiviral Vector Amplification Protocol

AAV Infection Guideline

AAV Packaging Protocol

Selection-Drug Killing Curve

Lentivector Packaging Protocol

Lentivirus Infection Protocol

AAV-mir-GFP-Blank Control Virus (Serotype 10)

Unit Quantity

Titer

Storage Condition

Vector Map (Am00110)

Vector Map (Am00110a)

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 10)

AAV-mir-GFP-Blank Control Virus (Serotype 3)

Vector Map (Am00103)

Vector Map (Am00103a)

Shipping Condition

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 3)

AAV-mir-GFP-Blank Control Virus (Serotype 4)

Vector Map (Am00104)

Vector Map (Am00104a)

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 4)

AAV-mir-GFP-Blank Control Virus (Serotype 5)

Vector Map (Am00105)

Vector Map (Am00105a)

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 5)

AAV-mir-GFP-Blank Control Virus (Serotype 6)

Vector Map (Am00106)

Vector Map (Am00106a)

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 6)

AAV-mir-GFP-Blank Control Virus (Serotype 7)

Vector Map (Am00107)

Vector Map (Am00107a)

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 7)

AAV-mir-GFP-Blank Control Virus (Serotype 8)

Vector Map (Am00108)

Vector Map (Am00108a)

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 8)

AAV-mir-GFP-Blank Control Virus (Serotype 9)

Vector Map (Am00109)

Vector Map Am00109a)

pAAV-mir-GFP-hGH-amp-Blank Control Virus (Serotype 9)

<h2 dir="ltr">What Are AAV Purification &amp; Packaging Kits?</h2>
 Producing high-titer, high-purity recombinant AAV is a prerequisite for reproducible in vitro and in vivo gene delivery experiments. Impure AAV preparations containing cell debris, empty capsids, and residual transfection reagents reduce functional titer, increase immune activation, and compromise experimental reproducibility. Consistent AAV production requires efficient packaging and purification. Select the kit designed for your vector workflow.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" aria-level="1">
AAV Packaging Mix(1-6) for serotype-specific and efficient gene delivery and AAV production&nbsp;
</li>
<li dir="ltr" aria-level="1">
AAV Serotype Blast&trade; Kit for greater viral yield and enhanced AAV production workflows
</li>
<li dir="ltr" aria-level="1">
AAViralEntry&trade; Transduction Enhancer for improved uptake of AAV and better delivery in mammalian cells
</li>
<li dir="ltr" aria-level="1">
AAV Serotype Blast&trade; Kit for reliable viral vector constructs and AAV production
</li>
</ul>
<h2 dir="ltr"> How to Choose AAV Purification &amp; Packaging Kits</h2>
 Helper-Free Packaging Components Helper-free triple-transfection requires the transgene plasmid (gene of interest flanked by AAV2 ITRs), the rep/cap plasmid (supplying Rep replication proteins and the serotype-specific capsid), and a helper plasmid supplying adenoviral helper functions &mdash; confirm all three components are available for your chosen serotype. Purification Method Iodixanol gradient purification separates full and empty capsids by density without ultracentrifugation in some protocols, while precipitation-filtration kits offer a simpler benchtop alternative for labs without gradient centrifugation capability. Empty vs. Full Capsid Ratio Empty AAV capsids (lacking packaged genome) contribute to particle count without functional activity and can increase immune response in vivo &mdash; purification methods that enrich for full capsids improve both potency and safety profile. Serotype-Specific Rep/Cap Plasmids Each AAV serotype requires its corresponding rep/cap plasmid; confirm the packaging kit includes (or is compatible with) the rep/cap plasmid for your target serotype. Scale of Production Kit formats differ for small-scale research production versus larger-scale preparations intended for multiple in vivo cohorts &mdash; match kit scale to your experimental throughput needs. 
<h2 dir="ltr"> Specifications Context</h2>
 Helper-free triple transfection eliminates the need for co-infection with a replication-competent helper adenovirus, improving safety and simplifying production for standard BSL-2 laboratories. Iodixanol gradient and precipitation-filtration purification approaches are designed to produce research-grade rAAV without requiring ultra-centrifuge access, broadening accessibility for labs setting up AAV production for the first time. As with all recombinant AAV work, production requires institutional biosafety committee (IBC) approval at BSL-2 containment in most jurisdictions. Labs producing AAV for the first time should also plan for functional titering after purification by qPCR for genome copies and by transduction assay for infectious titer, since these two measures can differ substantially, and the functional titer is the more relevant figure for planning experimental MOIs. 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 to confirm packaging system compatibility and serotype availability for your application.

Purfication & Packaging Kits

DataSheet

AAViralEntry™ Transduction Enhancer (100X)

<h2 data-section-id="1go10h8" data-start="173" data-end="215">What are classic cell culture media?</h2>
&nbsp;
Classic cell culture media refers to the foundational basal medium formulations that have underpinned mammalian cell culture since the mid-20th century: DMEM (Dulbecco's Modified Eagle Medium), MEM (Minimum Essential Medium), RPMI 1640, Ham's Nutrient Mixtures F-10 and F-12, IMDM (Iscove's Modified Dulbecco's Medium), and the combination formulation DMEM/F-12. Each is manufactured according to its originally published formula, with modifications limited to those necessary for consistent performance and stability of the medium over its shelf life. These media supply the amino acids, vitamins, glucose, salts, and (in most formulations) phenol red pH indicator that form the nutritional backbone of essentially all subsequent specialty, serum-free, and Advanced media derivatives.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Selective Mammalian Antibiotics including Puromycin, Geneticin, and Hygromycin B for stable development of cell lines.</li>
<li dir="ltr" role="presentation">Broad-Spectrum Bactericidal Agents for routine contamination prevention, including Penicillin/Streptomycin and Gentamicin&nbsp;</li>
<li dir="ltr" role="presentation">Prokaryotic Selection Reagents for effective bacterial transformation, including Ampicillin, Kanamycin, Chloramphenicol, and Tetracycline&nbsp;</li>
<li dir="ltr" role="presentation">Antifungal and Antimycotic Solutions to maintain sterile cultures, including combined 100X cocktails and Amphotericin B (Fungizone)&nbsp;</li>
<li dir="ltr" role="presentation">Specialized Small Molecules for targeted biochemical assays, including Ganciclovir, Rapamycin, and Actinomycin D&nbsp;</li>
</ul>
&nbsp;
<h2 data-section-id="1mfajxk" data-start="1218" data-end="1252">How to choose a classic medium</h2>
&nbsp;
DMEM vs MEM
DMEM contains up to four times the amino acid and vitamin concentration of original Eagle's MEM, along with higher glucose levels, making it suitable for cell types with elevated nutrient demands &mdash; DMEM is broadly applicable across mammalian, insect, and plant cell phenotypes including primary cells, stem cells, and transformed lines. MEM remains widely used for monolayer culture of many standard cell types, with optional Hanks' or Earle's salt formulations and a calcium-free modification that permits suspension growth.
RPMI 1640 for suspension and hematopoietic culture
RPMI 1640, developed at the Roswell Park Memorial Institute for culturing human leukemic cells, is optimized for non-adherent cell types &mdash; lymphocytes and other blood cells &mdash; and contains glutathione plus higher biotin, B12, and PABA concentrations than DMEM or MEM. Despite its hematopoietic origin, RPMI 1640 supports a broad range of adherent lines (HeLa, T47D, RENCA, CT26.WT) when properly supplemented.
Ham's F-10/F-12 for CHO and specialized applications
Ham's nutrient mixtures were originally developed for CHO cell clones, HeLa cells, and mouse L-cells, and remain suited to hepatocyte culture, viral fusion experiments, and toxicity assays, with formulations available for use with or without serum. Coon's modification of Ham's F-12 roughly doubles the amino acid and pyruvate content and adds ascorbic acid, developed specifically for hybrid cells produced by viral fusion.
DMEM/F-12 for complex, rich-medium applications
DMEM/F-12 (1:1 mixture) combines DMEM's glucose, amino acid, and vitamin richness with Ham's F-12's zinc, putrescine, hypoxanthine, and thymidine, producing an extremely rich complex medium used for MDCK cells, glial cells, fibroblasts, and human endothelial cells &mdash; and serving as the basal medium for many serum-free Advanced formulations used in organoid and stem cell work.
IMDM for high-density rapid proliferation
IMDM further enriches DMEM with additional amino acids and vitamins, substituting potassium nitrate for ferric nitrate and adding HEPES and sodium pyruvate. IMDM's sodium bicarbonate buffer system (5&ndash;10% CO₂) and enriched composition make it well suited for rapidly proliferating, high-density cultures including Jurkat, COS-7, and macrophage cells.
Liquid vs. powder format
Liquid classic media are ready to use (after appropriate FBS and supplement addition) and include sodium bicarbonate in the formulation. Powdered media are manufactured without sodium bicarbonate, since it tends to off-gas in powder form &mdash; 3.7 g/L sodium bicarbonate must be added upon reconstitution, followed by sterile filtration. Powder formats offer cost and shipping-weight advantages for high-volume labs preparing their own media.
&nbsp;
<h2 data-section-id="17i0pj" data-start="5035" data-end="5061">Specifications context</h2>
&nbsp;
Classic media are manufactured according to originally published formulas, with stability-related modifications documented per product. DMEM's sodium bicarbonate buffer system at 3.7 g/L is standard across liquid formulations; powdered formats require this addition upon reconstitution along with 0.22 &micro;m sterile filtration. As of 2026, DMEM, DMEM/F-12, and RPMI 1640 remain the three most widely specified classic media across academic and biomanufacturing labs, with IMDM increasingly used for high-density suspension applications in bioprocessing.
For recombinant growth factors and cytokines used alongside classic media, see Recombinant Proteins. For supplementation reagents (GlutaMAX, NEAA, sodium pyruvate, HEPES), see Cell Culture Supplements &amp; Additives. Browse Mammalian Cell Culture for the broader category.
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP to get highly efficient microbial control solutions for your lab.

Antibiotics

MSDS

Actinomycin D

Concentration

Shipping condition

<h2 dir="ltr">What Are Adenoviral Control &amp; Reporter Constructs?</h2>
 Adenoviral over-expression experiments typically include matched control constructs that use the same vector backbone, promoter configuration, and production workflow as the experimental construct, and are packaged and purified under equivalent conditions. This helps account for vector-related and adenovirus-associated innate immune responses that can influence cellular readouts independently of the transgene. Using appropriate null or reporter controls is essential for accurate interpretation of adenoviral transduction and expression data. Choose the tools that support accurate data interpretation.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif;" aria-level="1">
GFP Adenovirus Reporters: confirm transduction visually using high-titer viral particles expressing green fluorescent protein
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
Beta-Galactosidase (LacZ) Adenoviruses: &beta;-gal markers derived from E. coli for standardized colorimetric and histochemical assays.
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
pShuttle-LacZ Control Vectors: produce recombinant adenoviruses expressing LacZ.
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
Null Adenovirus Controls: empty viral particles for assessment of non-specific cellular responses during gene delivery.
</li>
<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
CMV Null Adenoviruses: used to identify promoter-specific metabolic effects. Contains CMV promoter without a transgene.
</li>
</ul>
<h2 dir="ltr"> How to Choose Adenoviral Control &amp; Reporter Constructs</h2>
 Empty Vector Matching An empty vector control &mdash; identical backbone, promoter, and packaging as the experimental adenoviral construct, with no transgene insert &mdash; establishes the baseline for adenoviral delivery effects independent of the over-expressed gene. Fluorescent Reporter Selection GFP and RFP fluorescent reporters allow tracking of transduction efficiency by microscopy or flow cytometry, matching the promoter configuration of experimental constructs. Luciferase Reporter Format Firefly luciferase and Renilla luciferase provide quantitative bioluminescent readouts; secreted NanoLuc reporters allow sampling of culture supernatant for repeated, non-destructive measurements over a time course. Immune Activation Considerations Because adenoviral delivery activates innate immune sensing in transduced cells independently of any transgene, an identical-backbone control is essential to distinguish transgene-specific effects from generalised adenoviral response. Production Workflow Matching Controls should be produced, packaged, and purified using the same protocol and timeline as experimental constructs to avoid batch-to-batch variability confounding comparisons. 
<h2 dir="ltr"> Specifications Context</h2>
 Adenoviral delivery can activate innate immune sensing in transduced cells, altering gene expression independently of the transgene; therefore, matched controls with the same Ad5 backbone and promoter configuration are required for valid interpretation of adenoviral over-expression experiments. MBP adenoviral control and reporter constructs include GFP adenovirus, &beta;-gal (LacZ) adenovirus, and null adenovirus systems, supporting qualitative and quantitative assessment of transduction efficiency. Using control and experimental constructs produced under consistent conditions reduces variability that can confound downstream comparisons across treatment groups. Recording vector identity and batch information supports reproducibility and troubleshooting. 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 today for the selection of matched adenoviral control and reporter constructs for your workflow.

Control/Reporter

Adeno CMV Null Adenovirus

Vector Map

Titer 

<h2 data-section-id="6b0hnw" data-start="102" data-end="151">What are SV40T antigen overexpression viruses?</h2>
&nbsp;
SV40T antigen overexpression viruses are recombinant lentiviral particles carrying the simian virus 40 (SV40) large T antigen gene, a hexamer protein that inactivates the p53 and retinoblastoma (Rb) tumor suppressor pathways, bypassing the senescence checkpoints that normally limit primary cell proliferation. Some constructs deliver the large T antigen alone, while others include both large and small T antigens. Related entities include p53/Rb pathway inactivation, broad cross-species immortalization (human, mouse, rat, bovine, porcine, canine), karyotype/tumorigenicity characterization (soft agar assay), and antibiotic/fluorescent selection markers.
&nbsp;
<h2 dir="ltr">What you will find:</h2>
&nbsp;
<ul>
<li dir="ltr" role="presentation">Lenti-SV40 (tsA58 Mutant) for cell proliferation with inducible control and temperature-sensitive expression</li>
<li dir="ltr" role="presentation">Lenti-SV40T (Puro/Neo/No Marker) provides stable integration with versatile selection markers of highly concentrated lentiviral stocks&nbsp;</li>
<li dir="ltr" role="presentation">Adeno-SV40 Adenovirus for transient T-antigen expression with high-efficiency adenoviral vectors</li>
<li dir="ltr" role="presentation">Retro-SV40 &amp; Retro-SV40LT for special integration in proliferating cells.</li>
<li dir="ltr" role="presentation">Lenti-SV40Tt Lentivirus: Small T and Large T antigens for improved transformation.</li>
</ul>
&nbsp;
<h2 data-section-id="ykynp3" data-start="1032" data-end="1092">How to choose SV40T antigen overexpression virus products</h2>
&nbsp;
Large T antigen alone vs. large and small T antigen
Constructs delivering large T antigen alone target p53/Rb pathway inactivation specifically, while large-and-small-T constructs include additional SV40 small T antigen activity affecting protein phosphatase 2A (PP2A) signaling; confirm which form a published protocol specifies, since the two can produce different immortalization efficiencies and phenotypes.
Species applicability
SV40 large T antigen has documented immortalization success across human, mouse, rat, bovine, porcine, and canine primary cells, making it a broadly applicable option when hTERT (human-specific) is not suitable for the target species.
Selection marker and promoter
As with TERT lentivirus, SV40T constructs are available under CMV or EF1-alpha promoters with antibiotic resistance (puromycin, hygromycin, blasticidin, neomycin/G418, zeocin) or fluorescent-antibiotic fusion markers (GFP-Bsd, RFP-Puro); select based on the target cell line's existing markers and expected culture duration.
Post-immortalization characterization
Because SV40 large T antigen inactivates tumor suppressor pathways, immortalized lines should be characterized for karyotype changes and tested by assays such as soft agar colony formation and tumorigenicity testing if downstream applications require confirmation that the line has not undergone malignant transformation.
&nbsp;
<h2 data-section-id="1fljvas" data-start="3482" data-end="3507">Specifications context</h2>
&nbsp;
SV40T antigen lentivirus is typically supplied at titers around 1x10^8 TU/mL, shipped on dry ice and stored at -80&deg;C, with constructs validated by full-length sequencing and confirmed free of common contaminants. Immortalized lines derived from SV40T transduction are commonly characterized by Western blot or immunofluorescence confirming SV40-LT protein expression, alongside marker expression comparison to the original primary cells. As of 2026, SV40 large T antigen remains the most broadly cross-species-applicable immortalization approach, often selected when hTERT (human-specific) is not an option for the target species or when faster immortalization is prioritized over preserving the original phenotype.
This sub-category sits within MBP's cell immortalization catalog alongside TERT overexpression viruses and additional immortalization agents. Labs constructing custom SV40T expression vectors can also review MBP's cloning reagents. MBP's specialist team can help confirm species applicability and vector format for a specific primary cell type before order placement.
<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP today to get high-quality SV40T antigen overexpression viruses.

ABM