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Sodium-hydrogen exchange regulatory cofactor 2

Protein-coding gene in humans From Wikipedia, the free encyclopedia

Sodium-hydrogen exchange regulatory cofactor NHE-RF2 (NHERF-2) also known as tyrosine kinase activator protein 1 (TKA-1) or SRY-interacting protein 1 (SIP-1) is a protein that in humans is encoded by the NHERF2 gene (previously SLC9A3R2).[5][6]

AliasesNHERF2, E3KARP, NHE3RF2, NHERF-2, OCTS2, SIP-1, SIP1, TKA-1, Sodium-hydrogen exchange regulatory cofactor 2, SLC9A3 regulator 2, SLC9A3R2
PDBOrtholog search: PDBe RCSB
Quick facts NHERF2, Identifiers ...
NHERF2
Identifiers
AliasesNHERF2, E3KARP, NHE3RF2, NHERF-2, OCTS2, SIP-1, SIP1, TKA-1, Sodium-hydrogen exchange regulatory cofactor 2, SLC9A3 regulator 2, SLC9A3R2
External IDsOMIM: 606553; MGI: 1890662; GeneCards: NHERF2
Available structures
PDBOrtholog search: PDBe RCSB
Orthologs
DatabasesNCBI: entry; OMA: entry
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001130012
NM_001252073
NM_001252075
NM_001252076
NM_004785

NM_023055
NM_023449
NM_001357796

RefSeq (protein)

NP_001123484
NP_001239002
NP_001239004
NP_001239005
NP_004776

NP_075542
NP_075938
NP_001344725

Location (UCSC)Chr 16: 2.03 – 2.04 MbChr 17: 24.86 – 24.87 Mb
PubMed search[3][4]
Wikidata
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NHERF-2 is a scaffold protein that connects plasma membrane proteins with members of the ezrin/moesin/radixin family and thereby helps to link them to the actin cytoskeleton and to regulate their surface expression. It is necessary for cAMP-mediated phosphorylation and inhibition of SLC9A3. In addition, it may also act as scaffold protein in the nucleus.

Function

This regulatory protein (factor) interacts with a sodium/hydrogen exchanger NHE3 (SLC9A3) in the brush border membrane of the proximal tubule, small intestine, and colon that plays a major role in transepithelial sodium absorption. SLC9A3R2, as well as SLC9A3R1 and protein kinase A phosphorylation, may play a role in NHE3 regulation.[7]

Interactions

See also

References

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