CRISPR-BCdb

A Comprehensive CRISPR-Cas9 Target Gene Resource for Precision Breast Cancer Research

Interpretation and Guide

ColumnDescription
GeneThe target gene (e.g., ATM, involved in DNA repair).
RankScoring rank of the gRNA based on efficiency and specificity.
Target SequenceThe gRNA sequence designed to bind to the DNA target site.
Genomic LocationThe reference location (e.g., seq:81) in a genome or contig.
StrandIndicates whether the gRNA targets the forward (+) or reverse (-) strand.
GC ContentPercentage of G and C bases; affects stability and melting temperature.
Self-CompSelf-complementarity score; high values may cause hairpin formation.
MM0–MM3Count of potential off-targets with 0–3 mismatches.
EfficiencyPredicted cleavage efficiency; higher is typically better.
ExonExon(s) targeted by the gRNA — useful for knockouts or edits.
Off-Target LocPredicted off-target locations in the genome.
ActionLink to view or design validation primers.
  • CRISPR Gene Editing: Select gRNAs with high precision and low off-target effects.
  • Primer Design: Generate primers for validation, screening, and amplification.
  • Functional Genomics: Disrupt specific exons to study gene function.
  • Off-Target Analysis: Identify and validate unintended Cas9 cuts.
  • Optimization: Balance efficiency and specificity for best editing outcomes.
FieldValueInterpretation
GeneATMTargets the ATM gene, involved in DNA repair.
Target SequenceCAAAGTGATATCAACCGGGCGGG23-nt guide RNA; guides Cas9 to specific DNA site.
Genomic Locationseq:81Position in genome reference .
Strand-Targets the reverse strand of DNA.
GC Content50.00%Balanced GC content — optimal for stability and binding.
Self-Comp1Low hairpin potential — favorable design.
MM01Perfect match at only one site — desired on-target.
MM1/MM2/MM31/0/0One off-target with 1 mismatch, none with 2 or 3 mismatches — highly specific.
Efficiency68.20High predicted cleavage activity.
Exon4:exon:TSLPTargets coding exon 4 — ideal for knockout studies.
Off-Target Locationchr11:108223147Only predicted off-target, on chromosome 11, with 1 mismatch.

Developed by Sowmiya A
Department of Biotechnology,
Vivekanandha College of Arts and Sciences for Women (Autonomous)
Tiruchengode, Namakkal, Tamil Nadu, India.

As a part of my Master's program in Biotechnology.


Under the Supervision of Dr. Gnanendra Shanmugam
Department of Biotechnology,
Vivekanandha College of Arts and Sciences for Women (Autonomous)
Tiruchengode, Namakkal, Tamil Nadu, India.