Reactome: A Curated Pathway Database
THIS SITE IS USED FOR CURATION AND TESTING
IT IS NOT STABLE, IS LINKED TO AN INCOMPLETE DATA SET, AND IS NOT MONITORED FOR PERFORMANCE. WE STRONGLY RECOMMEND THE USE OF OUR PUBLIC SITE

Query author contributions in Reactome

Reactome depends on collaboration between our curation team and outside experts to assemble and peer-review its pathway modules. The integration of ORCID within Reactome enables us to meet a key challenge with authoring, curating and reviewing biological information by incentivizing and crediting the external experts that contribute their expertise and time to the Reactome curation process. More information is available at ORCID and Reactome.

If you have an ORCID ID that is not listed on this page, please forward this information to us and we will update your Reactome pathway records.

Name Email address

Details on Person UniProt:Q8NFF2 SLC24A4

Class:IdReferenceGeneProduct:96384
_chainChangeLogsignal peptide:1-38 added on Fri February 6 2015;chain:39-622 added on Fri February 6 2015
_displayNameUniProt:Q8NFF2 SLC24A4
_timestamp2025-08-15 22:09:56
chainsignal peptide:1-38
chain:39-622
checksum00D69370E55EE388
commentFUNCTION Calcium, potassium:sodium antiporter that transports 1 Ca(2+) and 1 K(+) in exchange for 4 Na(+) (PubMed:12379639, PubMed:26631410). Controls the rapid response termination and proper regulation of adaptation in olfactory sensory neurons (OSNs) which subsequently influences how odor information is encoded and perceived (By similarity). May play a role in calcium transport during amelogenesis (PubMed:23375655, PubMed:24621671).CATALYTIC ACTIVITY Ca(2+)(out) + K(+)(out) + 4 Na(+)(in) = Ca(2+)(in) + K(+)(in) + 4 Na(+)(out)SUBCELLULAR LOCATION Expressed abundantly in all regions of the brain, aorta, lung and thymus (PubMed:12379639). Expressed at lower levels in the stomach and intestine (PubMed:12379639).POLYMORPHISM Genetic variants in SLC24A4 define the skin/hair/eye pigmentation variation locus 6 (SHEP6) [MIM:210750]. Hair, eye and skin pigmentation are among the most visible examples of human phenotypic variation, with a broad normal range that is subject to substantial geographic stratification. In the case of skin, individuals tend to have lighter pigmentation with increasing distance from the equator. By contrast, the majority of variation in human eye and hair color is found among individuals of European ancestry, with most other human populations fixed for brown eyes and black hair.DISEASE The disease is caused by variants affecting the gene represented in this entry.SIMILARITY Belongs to the Ca(2+):cation antiporter (CaCA) (TC 2.A.19) family. SLC24A subfamily.CAUTION It is uncertain whether Met-1 or Met-18 is the initiator.SEQUENCE CAUTION Truncated N-terminus.SEQUENCE CAUTION Truncated N-terminus.SEQUENCE CAUTION Truncated N-terminus.SEQUENCE CAUTION Probable cloning artifact.SEQUENCE CAUTION Truncated N-terminus.
descriptionrecommendedName: Sodium/potassium/calcium exchanger 4 alternativeName: fullName evidence="13"Na(+)/K(+)/Ca(2+)-exchange protein 4 alternativeName: Solute carrier family 24 member 4
geneNameSLC24A4
NCKX4
identifierQ8NFF2
isSequenceChangedFALSE
keywordAlternative splicing
Amelogenesis imperfecta
Antiport
Calcium
Calcium transport
Cell membrane
Cytoplasm
Disease variant
Glycoprotein
Ion transport
Membrane
Olfaction
Potassium
Potassium transport
Proteomics identification
Reference proteome
Repeat
Sensory transduction
Signal
Sodium
Sodium transport
Symport
Transmembrane
Transmembrane helix
Transport
modified[InstanceEdit:9836292] Weiser, Joel, 2023-05-25
[InstanceEdit:9852000] Weiser, Joel, 2023-11-03
[InstanceEdit:9926675] Weiser, Joel, 2024-11-03
[InstanceEdit:9963647] Weiser, Joel, 2025-08-15
nameSLC24A4
referenceDatabase[ReferenceDatabase:2] UniProt
referenceGene[ReferenceDNASequence:8990845] ENSEMBL:ENSG00000140090 SLC24A4 [Homo sapiens]
secondaryIdentifierNCKX4_HUMAN
B4DHE7
B9ZVY2
Q8N8U6
Q8NCX1
Q8NFF0
Q8NFF1
sequenceLength622
species[Species:48887] Homo sapiens
(isoformParent)[ReferenceIsoform:151112] UniProt:Q8NFF2-2 SLC24A4 [Homo sapiens]
[ReferenceIsoform:151113] UniProt:Q8NFF2-3 SLC24A4 [Homo sapiens]
[ReferenceIsoform:151114] UniProt:Q8NFF2-4 SLC24A4 [Homo sapiens]
[ReferenceIsoform:411581] UniProt:Q8NFF2-1 SLC24A4 [Homo sapiens]
(referenceEntity)[EntityWithAccessionedSequence:425682] SLC24A4 [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:5626243] SLC24A4 S499C [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:5626257] SLC24A4 R339* [plasma membrane] [Homo sapiens]
[EntityWithAccessionedSequence:5626265] SLC24A4 A146V [plasma membrane] [Homo sapiens]
(referenceSequence)[ReplacedResidue:5626262] L-alanine 146 replaced with L-valine
[NonsenseMutation:5626267] Nonsense mutation at L-arginine 339
[ReplacedResidue:5626271] L-serine 499 replaced with L-cysteine
[Change default viewing format]
No pathways have been reviewed or authored by UniProt:Q8NFF2 SLC24A4 (96384)