Human CRISPR Activation Pooled Library (Calabrese P65-HSF)
(Pooled Library #1000000111, #92379, #92380)
The human CRISPR activation library (Calabrese P65-HSF) is in backbone pXPR_502 (P65 HSF). This Calabrese library activates over 18,000 human genes and is used for genome-wide activation screening.
Each gene activated by this library is targeted by 3-6 gRNAs. These gRNAs are split among the two half-libraries: Set A (Cat# 92379) contains gRNAs 1-3, Set B (Cat# 92380) contains gRNAs 4-6. Each half-library has a unique set of gRNAs, but both are designed to target the same genes. The slight discrepancy in number of genes targeted between Set A and Set B is because not all genes had 6 gRNAs.
Depositor comments: The modified sgRNA tracr has two MS2 loops and two PP7 loops, although only the PP7 loops are used in this library. This library uses two vectors instead of 3, as the PP7-P65-HSF is on same vector as sgRNA itself. It was found that MS2-P65-HST (hygroR) vector gave poor titer. The 6 guides per gene were designed first based on location relative to TSS, then sequence preferences.
Primers for the lentiGuide backbone can be used with this library in the Sequencing Protocol.
pXPR_502, which uses P65-HSF to activate a gRNA-scaffold.
These pooled libraries were created by your colleagues. Please acknowledge the Principal Investigator, cite the article in which the pooled libraries were described, and include Addgene in the Materials and Methods of your future publications.
Example for your Materials & Methods section:Human Calabrese CRISPR activation pooled library set A was a gift from David Root and John Doench (Addgene #92379).
Human Calabrese CRISPR activation pooled library set B was a gift from David Root and John Doench (Addgene #92380).
For your References section:Optimized libraries for CRISPR-Cas9 genetic screens with multiple modalities. Sanson KR, Hanna RE, Hegde M, Donovan KF, Strand C, Sullender ME, Vaimberg EW, Goodale A, Root DE, Piccioni F, Doench JG. Nat Commun. 2018 Dec 21;9(1):5416. doi: 10.1038/s41467-018-07901-8. PubMed 30575746