Extended Data Fig. 9. RacrIC1 and AcrIC5 are encoded in the same bicistronic RNA and both inhibit type I-C CRISPR–Cas.
a, Secondary structure of RacrIC1 and a type I-C CRISPR repeat. In type I-C, Cas5 is responsible for crRNA processing78,79. b, 5′ RACE analysis of the identified acr-racr locus in B. pseudocatenulatum cloned in an expression vector under wild-type promoter expression in triplicates (for gel source data, see Supplementary Fig. 1). c, Sanger sequencing results of PCR products acquired through 5′ RACE and confirmation of exact TSS. Primers used are indicated. d, Zoom in on the AcrIC5 sequence. Truncation of AcrIC5 introduced by single nucleotide insertion causing preliminary stop codons in the sequence.