fat-2(et63) is a 73G>A (Val25Met) substitution mutation and intragenic fat-2(wa17) suppressor. This strain still carries the fat-2(wa17) S101F substitution mutation. Reference: Kaper D, et al. Elife. 2025 Jul 8:13:RP104181. doi: 10.7554/eLife.104181. PMID: 40627529.