Sodium-hydrogen antiporter 3 regulator 1
Sodium-hydrogen antiporter 3 regulator 1 is a regulator of Sodium-hydrogen antiporter 3. It is encoded by the gene SLC9A3R1. It is also known as ERM Binding Protein 50 (EBP50) or Na+/H+ Exchanger Regulatory Factor (NHERF1). It is believed[5] to interact via long-range allostery, involving significant protein dynamics.
Mechanism
Members of the ezrin (VIL2; MIM 123900)-radixin (RDX; MIM 179410)-moesin (MSN; MIM 309845) (ERM) protein family are highly concentrated in the apical aspect of polarized epithelial cells. These cells are studded with microvilli containing bundles of actin filaments, which must attach to the membrane to assemble and maintain the microvilli. The ERM proteins, together with merlin, the NF2 (MIM 607379) gene product, are thought to be linkers between integral membrane and cytoskeletal proteins, and they bind directly to actin in vitro. Actin cytoskeleton reorganization requires the activation of a sodium/hydrogen exchanger (SLC9A3; MIM 182307). SLC9A3R1 is an ERM-binding protein.[supplied by OMIM][6]
Interactions
Sodium-hydrogen antiporter 3 regulator 1 has been shown to interact with:
See also
References
- GRCh38: Ensembl release 89: ENSG00000109062 - Ensembl, May 2017
- GRCm38: Ensembl release 89: ENSMUSG00000020733 - Ensembl, May 2017
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- Huang P, Steplock D, Weinman EJ, Hall RA, Ding Z, Li J, Wang Y, Liu-Chen LY (June 2004). "kappa Opioid receptor interacts with Na(+)/H(+)-exchanger regulatory factor-1/Ezrin-radixin-moesin-binding phosphoprotein-50 (NHERF-1/EBP50) to stimulate Na(+)/H(+) exchange independent of G(i)/G(o) proteins". J. Biol. Chem. 279 (24): 25002–9. doi:10.1074/jbc.M313366200. PMID 15070904.
- Li JG, Chen C, Liu-Chen LY (July 2002). "Ezrin-radixin-moesin-binding phosphoprotein-50/Na+/H+ exchanger regulatory factor (EBP50/NHERF) blocks U50,488H-induced down-regulation of the human kappa opioid receptor by enhancing its recycling rate". J. Biol. Chem. 277 (30): 27545–52. doi:10.1074/jbc.M200058200. PMID 12004055.
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- Pushkin A, Abuladze N, Newman D, Muronets V, Sassani P, Tatishchev S, Kurtz I (March 2003). "The COOH termini of NBC3 and the 56-kDa H+-ATPase subunit are PDZ motifs involved in their interaction". Am. J. Physiol., Cell Physiol. 284 (3): C667–73. doi:10.1152/ajpcell.00225.2002. PMID 12444018. S2CID 7070088.
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Further reading
- Weinman EJ, Steplock D, Wang Y, Shenolikar S (1995). "Characterization of a protein cofactor that mediates protein kinase A regulation of the renal brush border membrane Na(+)-H+ exchanger". J. Clin. Invest. 95 (5): 2143–9. doi:10.1172/JCI117903. PMC 295815. PMID 7738182.
- Yun CH, Oh S, Zizak M, et al. (1997). "cAMP-mediated inhibition of the epithelial brush border Na+/H+ exchanger, NHE3, requires an associated regulatory protein". Proc. Natl. Acad. Sci. U.S.A. 94 (7): 3010–5. Bibcode:1997PNAS...94.3010Y. doi:10.1073/pnas.94.7.3010. PMC 20313. PMID 9096337.
- Murthy A, Gonzalez-Agosti C, Cordero E, et al. (1998). "NHE-RF, a regulatory cofactor for Na(+)-H+ exchange, is a common interactor for merlin and ERM (MERM) proteins". J. Biol. Chem. 273 (3): 1273–6. doi:10.1074/jbc.273.3.1273. PMID 9430655.
- Hall RA, Spurney RF, Premont RT, et al. (1999). "G protein-coupled receptor kinase 6A phosphorylates the Na(+)/H(+) exchanger regulatory factor via a PDZ domain-mediated interaction". J. Biol. Chem. 274 (34): 24328–34. doi:10.1074/jbc.274.34.24328. PMID 10446210.
- Cao TT, Deacon HW, Reczek D, et al. (1999). "A kinase-regulated PDZ-domain interaction controls endocytic sorting of the beta2-adrenergic receptor". Nature. 401 (6750): 286–90. Bibcode:1999Natur.401..286C. doi:10.1038/45816. PMID 10499588. S2CID 4386883.
- Breton S, Wiederhold T, Marshansky V, et al. (2000). "The B1 subunit of the H+ATPase is a PDZ domain-binding protein. Colocalization with NHE-RF in renal B-intercalated cells". J. Biol. Chem. 275 (24): 18219–24. doi:10.1074/jbc.M909857199. PMID 10748165.
- Tang Y, Tang J, Chen Z, et al. (2001). "Association of mammalian trp4 and phospholipase C isozymes with a PDZ domain-containing protein, NHERF". J. Biol. Chem. 275 (48): 37559–64. doi:10.1074/jbc.M006635200. PMID 10980202.
- Gisler SM, Stagljar I, Traebert M, et al. (2001). "Interaction of the type IIa Na/Pi cotransporter with PDZ proteins". J. Biol. Chem. 276 (12): 9206–13. doi:10.1074/jbc.M008745200. PMID 11099500.
- Reczek D, Bretscher A (2001). "Identification of Epi64, a Tbc/Rabgap Domain–Containing Microvillar Protein That Binds to the First PDZ Domain of Ebp50 and E3karp". J. Cell Biol. 153 (1): 191–206. doi:10.1083/jcb.153.1.191. PMC 2185518. PMID 11285285.
- Karthikeyan S, Leung T, Ladias JA (2001). "Structural basis of the Na+/H+ exchanger regulatory factor PDZ1 interaction with the carboxyl-terminal region of the cystic fibrosis transmembrane conductance regulator". J. Biol. Chem. 276 (23): 19683–6. doi:10.1074/jbc.C100154200. PMID 11304524.
- Karthikeyan S, Leung T, Birrane G, et al. (2001). "Crystal structure of the PDZ1 domain of human Na(+)/H(+) exchanger regulatory factor provides insights into the mechanism of carboxyl-terminal leucine recognition by class I PDZ domains". J. Mol. Biol. 308 (5): 963–73. doi:10.1006/jmbi.2001.4634. PMID 11352585.
This article incorporates text from the United States National Library of Medicine, which is in the public domain.