PR:000000292 nodal protein sequence variant R183Q (human) hNODAL/var:R183Q|nodal protein sequence variant 1 (human)|UniProtKB:Q96S42, Arg-183, CHEBI:30011 associated_with_disease_progression DOID:0050545 visceral heterotaxy PMID:9354794 EXP NCBITaxon:9606 UniProtKB_VAR:VAR_015111 20080301 PRO:CNA