CRISPR Guide Design

Find SpCas9 guides and inspect potential genomic matches in a selected strawberry assembly.

Checking FlashFry…

Quick start
  1. Choose Species and Reference assembly.
  2. Paste genomic DNA or use Upload FASTA: one sequence, 23–2,000 bp, file up to 12 KB. Upload a target fragment, not a whole genome. You can also use Load assembly example.
  3. Alternatively, select Gene ID → Locate gene → Load region, or select Genomic region, enter 1-based inclusive coordinates, then click Load region.
  4. Choose the mismatch limit and click Find guides. Matching is checked in the selected assembly. Click a guide ID to inspect its genomic matches; copy spacers or download results.

Target region

User Manual
Nuclease / target PAMSpCas9 / NGG

One sequence, 23–2,000 bp; A/C/G/T/N. Both strands are scanned. Windows containing N are skipped. Use genomic DNA, not spliced CDS or RNA.