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● In-Stock Products / CRISPR sgRNA LIBRARY

CRISPR sgRNA Library

In-stock sgRNA libraries across human, mouse, livestock and poultry, African green monkey, microbial, and other species, with >99% coverage and excellent uniformity to ease downstream screening.

>99%Library coverage
Multi-speciesIn stock for human/mouse/livestock & poultry/microbial and more

Product Overview

Genome-Wide Knockout Libraries

Covering 30+ pathway-specific sub-libraries — cell cycle, apoptosis, signal transduction, immune system, and more — plus unbiased genome-wide screening.

Activation / Inhibition Libraries

In-stock CRISPRa activation libraries and CRISPRi/CRISPRoff inhibition libraries.

Custom Arrayed Libraries

Custom arrayed libraries built to your research needs, for well-by-well functional validation — see the CRISPR Library High-Throughput Screening research service.

Library Specifications

Coverage & Uniformity

Library coverage >99% with excellent sgRNA uniformity (uniformity <10), easing the downstream screening workload.

Multi-Species Coverage

In-stock sgRNA libraries for human, mouse, livestock and poultry, African green monkey, microbial, and other species.

Supporting Services

Library transduction, Cas9 stable cell line construction, NGS sequencing, and bioinformatics analysis — see CRISPR Library High-Throughput Screening.

Learn More: CRISPR sgRNA Library

Selection Tips
FAQ

In-stock library or custom arrayed library — which do I need?

The in-stock genome-wide/sub-pathway knockout libraries are already-built pooled libraries, ready to use straight out of the box for large-scale screening. If you've already run an initial screen and have candidate genes you need to validate individually, or you need finer single-cell-level phenotype readout, you'll need a custom arrayed library — a custom service, not part of the in-stock inventory.

What do "coverage" and "uniformity" actually tell you?

Coverage (>99%) is the proportion of genes/sites the library design actually reaches — the higher the coverage, the more complete the library's "gene list" and the fewer targets it misses. Uniformity reflects how evenly the abundance of individual sgRNAs is distributed across the library — better uniformity means each sgRNA starts the screen with closer-to-equal representation, reducing statistical noise from a handful of over- or under-represented sgRNAs later on.

After buying an in-stock library, do I still need to package it into virus myself?

In-stock libraries are typically supplied as plasmid-form sgRNA libraries. To use them for cell-based screening, they still need to be packaged into virus (lentivirus) for efficient delivery into cells. This can be handled together with the CRISPR Library High-Throughput Screening research service, or packaged in-house, depending on your lab's setup and needs.

Are CRISPRa/CRISPRi libraries built on the same sgRNA design as standard knockout libraries?

No. CRISPRa (activation)/CRISPRi (interference) libraries use a catalytically dead dCas9 system, and their sgRNA design positions and strategy differ from standard knockout libraries (which rely on active Cas9 creating DNA breaks) — typically targeting regions near a gene's transcription start site. The two are purpose-built for different perturbation mechanisms and aren't interchangeable.

Delivery Times & SKU Rules

In-stock librariesStandard in-stock orders ship in about 24 hours after confirmation; special cases are arranged separately
Supporting screening serviceSee the CRISPR Library High-Throughput Screening research service, about 6–10 weeks
SKU formatXP + 4-digit serial number + format suffix (e.g. XP0002A)
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