PR:000000452 lefty 2 sequence variant S342N (human) hLEFTY2/var:S342N|lefty 2 sequence variant 1 (human)|UniProtKB:O00292-1, Ser-342, CHEBI:50347 associated_with_disease_progression DOID:0050545 visceral heterotaxy PMID:10053005 EXP NCBITaxon:9606 UniProtKB_VAR:VAR_010385 20080301 PRO:CNA