[Term] id: PR:000063227 name: sodium/potassium/calcium exchanger 4 sequence variant S499C, signal peptide removed form (human) def: "A sodium/potassium/calcium exchanger 4 (human) that has a Cys residue at the position equivalent to Ser-499 of the amino acid sequence represented by UniProtKB:Q8NFF2-1 and that has had the signal peptide removed. Example: UniProtKB:Q8NFF2-1, 39-622, Ser-499, CHEBI:29950." [PRO:DNx, Reactome:R-HSA-5626243] comment: Category=organism-modification. synonym: "hSLC24A4/var:S499C/SigPep-" EXACT PRO-short-label [PRO:DNx] synonym: "SLC24A4 S499C" RELATED Reactome-displayName [PRO:DNx, Reactome:R-HSA-5626243] synonym: "UniProtKB:Q8NFF2, 39-622, Ser-499, CHEBI:29950" EXACT PRO-proteoform-std [PRO:DNx] synonym: "UniProtKB:Q8NFF2-1, 39-622, Ser-499, CHEBI:29950" NARROW PRO-proteoform-std [PRO:DNx] xref: Reactome:R-HSA-5626243 "PR:000063227 located_in GO:0005886" is_a: PR:Q8NFF2 ! sodium/potassium/calcium exchanger 4 (human) relationship: only_in_taxon NCBITaxon:9606 ! Homo sapiens