| Field | Specification |
|---|---|
| Accession Number | |
| Product Type | |
| Reporter | |
| Selection Marker | Blasticidin, N/A, Puromycin |
| Shipping | |
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Background
KAT2B, also known as PCAF (p300/CBP-associated factor), is a lysine acetyltransferase that modifies histones and non-histone proteins to regulate transcription and chromatin structure. As a transcriptional coactivator, KAT2B acetylates histone H3 to promote an open, transcriptionally active chromatin state and associates with the coactivators p300 and CBP. It also acetylates transcription factors and other regulatory proteins, influencing cell cycle control, differentiation, and metabolism. KAT2B is closely related to KAT2A (GCN5) and the two enzymes share overlapping substrates and complexes. Altered KAT2B activity has been implicated in cancer and other diseases, making it a widely studied chromatin-modifying enzyme and potential therapeutic target.
Product Description & Applications
The h/m KAT2B shRNA Lentivirus delivers validated short hairpin RNA targeting human and mouse KAT2B (PCAF) for stable gene knockdown. Each shRNA is validated to achieve at least 70% reduction of KAT2B using a fluorescence-based assay that provides a direct functional readout rather than transcript-level qPCR. The particles are ultra-purified and concentrated to high titer by PEG precipitation and sucrose gradient centrifugation, and efficiently transduce difficult-to-transfect cells, including primary and thawed cultures. A co-expressed fluorescent reporter (GFP or RFP, optionally with luciferase) and antibiotic selection marker (puromycin or blasticidin) enable stable line generation. A shRNA set option supplies a mix of two independent validated shRNAs plus matched scrambled-control lentivirus for loss-of-function studies of histone acetylation and transcriptional regulation.
About This Product
This validated shRNA lentivirus targeting KAT2B (NCBI Accession: NM_003884.5) delivers a 19–20 bp shRNA from a third-generation, self-inactivating lentiviral backbone. Expression is driven from a U6 Pol III promoter, with a constitutively expressed fluorescent reporter (GFP, GFP/Luc, RFP, RFP/Luc) and antibiotic selection marker (Blasticidin, Puromycin) co-expressed from the same vector. VSV-G pseudotyping enables broad cell tropism, including primary, suspension, and cryopreserved cell types.
Knockdown is validated using a proprietary bicistronic fluorescence assay in which the target mRNA is co-expressed fused to RFP alongside the shRNA-GFP construct. At least 70% reduction in RFP signal in GFP-positive cells confirms on-target activity — a more direct functional readout than transcript-level qPCR. Polyclonal stable lines can be generated by antibiotic selection within 10 days, preserving parental cell heterogeneity compared to single-clone CRISPR approaches.
Can't find the lentiviral construct you need, or want to adjust key design elements? Contact us to discuss custom LV design and optional add-ons.
Common customization requests
- Insert / payload: replace the gene/sequence, swap to a different isoform, add mutations, or optimize cloning features.
- Expression design: change promoter (e.g., CMV/EF1α/PGK), add enhancers, or adjust regulatory elements.
- Reporters: add/swap GFP/RFP/mCherry/luciferase (single or dual reporters where applicable).
- Selection markers: add/swap puromycin/blasticidin/neomycin or fluorescent selection options.
- Vector format: switch between OE, shRNA, CRISPR (sgRNA/Cas systems), or control vectors (where supported).
Add-ons you can request
- Control viruses: empty vector, non-targeting shRNA, reporter-only controls, or matched backbone controls.
- Packaging / format: concentration options, aliquoting, or custom fill volume for screening workflows.
- Documentation: construct map/sequence confirmation package (as available) and batch documentation.
What to include in your request
- Target cell type/model (cell line or primary cells) and intended readout (reporter, knockdown, OE, etc.)
- Insert sequence (FASTA) or reference ID, plus any required tags/mutations
- Promoter, reporter, and selection marker preferences
- Desired scale and preferred format (aliquots / concentration requests)
Email us at support@biohippo.com or use the Talk to a Scientist request form.
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