Name: Lentivirus Promoter Blast™ Kit
SKU: LV950
Price: 558.12 USD
Availability: InStock

<h2 dir="ltr"> What Are Lentiviral Purification &amp; Packaging Kits?</h2>
 Producing high-quality lentiviral stocks is a prerequisite for reproducible transduction experiments. Low-titer or impure virus preparations reduce transduction efficiency, introduce toxicity from residual cell debris, and compromise experimental reproducibility. Purification and packaging kits address every step from plasmid transfection through virus harvest and concentration. Vector production quality depends on efficient purification and packaging workflows. Choose the kit designed for your system.
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<h2 dir="ltr">What you will find:</h2>
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2nd and 3rd Generation Lentivirus Bundles combining transduction enhancers, transfection reagents, packaging mix, titer kits for complete workflows
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2nd and 3rd Generation Packaging System Mix for standardized viral production workflows
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DNAfectin&trade; Plus and Packaging Mix systems for enhanced transfection workflows
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Lentivirus Promoter Blast&trade; Kit for lentiviral expression studies driven by promoters
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SARS-CoV-2 S Protein Pseudotype Lentiviral Packaging Mix for pseudovirus-based research applications
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Ultra-Pure Lentivirus Purification Kit for viral cleanup and concentration
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ViralEntry&trade; Transduction Enhancer for improved transduction
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<li dir="ltr" style="font-family: arial, helvetica, sans-serif; color: #000000;" aria-level="1">
qPCR Lentivirus Titer Kit &amp; ViralEntry&trade; Bundle for optimized transduction workflows and&nbsp; viral quantification&nbsp;
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<h2 dir="ltr"> How to Choose a Purification &amp; Packaging Kit</h2>
 Concentration Method Available PEG precipitation kits work with a standard benchtop centrifuge, producing 10&ndash;100-fold concentration &mdash; the most accessible method for labs without ultracentrifuges. Ultrafiltration (100 kDa cutoff) offers high recovery (&gt;80%) while removing small molecules and unincorporated VSV-G. Ultracentrifugation provides the highest concentration (up to 1000&times;) but requires specialised equipment. Packaging Plasmid Generation 3rd generation systems (pMDLg/pRRE + pRSV-Rev + pVSV-G) split packaging elements across three plasmids and eliminate Tat for biosafety. 2nd generation systems use a single packaging plasmid + pVSV-G; some transfer vectors with RSV promoters produce lower titers with 3rd generation packaging unless using CMV-promoter variants (pLKO.1C). Starting Volume Scale Ultrafiltration units are compatible with both small-scale (&le;20 mL) and large-scale (up to 1 L) starting volumes using appropriately sized membranes. Plasmid Transfection Ratio For 3rd generation packaging, a 4:2:1:1 ratio of transfer vector:pMDLg/pRRE:pVSV-G:pRSV-Rev has been validated to maximise titer, with 20 &micro;g transfer vector per 15 cm dish as a standard starting point. Titer Assessment Method p24 ELISA measures total viral particle content; functional transduction assays (GFP or antibiotic selection) measure infectious titer; qPCR-based RNA titration measures packaged RNA copies. Functional titer is most relevant for transduction experiments. 
<h2 dir="ltr"> Specifications Context</h2>
 Lentiviral concentration workflows commonly combine PEG precipitation, ultrafiltration, or density-gradient methods to increase viral titer without requiring ultracentrifugation. Ultrafiltration systems using 100 kDa membranes efficiently retain lentiviral particles (approximately 80&ndash;120 nm) while removing smaller contaminants and free proteins. Following concentration, viral stocks are typically aliquoted into single-use volumes and stored at &minus;80 &deg;C because infectivity decreases with repeated freeze&ndash;thaw cycles and prolonged storage above freezing temperatures. Modern 2nd- and 3rd-generation packaging systems separate essential viral functions across multiple plasmids, including a dedicated VSV-G envelope plasmid, to support safer lentiviral production workflows. Product availability reflects MBP's catalogue as of mid-2026. 
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<a href="https://mbpinc.net/contact-us">Contact the expert team </a>at MBP Inc. and get reliable lentiviral purification and packaging kits for your lab today.

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Lentivirus Promoter Blast™ Kit

LV950 by Applied Biological Materials is the Lentivirus Promoter Blast™ Kit: 4 × 1 mL at &gt;1×106 IU/mL GFP lentiviruses comparing CMV (LV008), PGK (LV028), EF1α (LV046), and UbC (LV027) promoters. All with Puromycin selection. For promoter selection and MOI optimization before stable cell line generation. Store at −80°C; shipped on dry ice.