az123 is an N18K missense allele altering 5' cryptic splicing usage. az123 is a CRISPR-induced mutation mimicking a known suppressor of unc-73(e936). Reference: Cartwright-Acar CH, et al. Nucleic Acids Res. 2022 Nov 11;50(20):11834-11857. doi: 10.1093/nar/gkac991. PMID: 36321655.