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.
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]
Sodium-hydrogen antiporter 3 regulator 1 has been shown to interact with:
Cystic fibrosis transmembrane conductance regulator (CFTR) is a membrane protein and anion channel in vertebrates that is encoded by the CFTR gene.
Merlin is a cytoskeletal protein. In humans, it is a tumor suppressor protein involved in neurofibromatosis type II. Sequence data reveal its similarity to the ERM protein family.
Activin receptor type-2B is a protein that in humans is encoded by the ACVR2B gene. ACVR2B is an activin type 2 receptor.
Leukosialin also known as sialophorin or CD43 is a transmembrane cell surface protein that in humans is encoded by the SPN (sialophorin) gene.
Ezrin also known as cytovillin or villin-2 is a protein that in humans is encoded by the EZR gene.
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 SLC9A3R2 gene.
Disks large homolog 3 (DLG3) also known as neuroendocrine-DLG or synapse-associated protein 102 (SAP-102) is a protein that in humans is encoded by the DLG3 gene. DLG3 is a member of the membrane-associated guanylate kinase (MAGUK) superfamily of proteins.
Syntenin-1 is a protein that in humans is encoded by the SDCBP gene.
Guanine nucleotide-binding protein G(q) subunit alpha is a protein that in humans is encoded by the GNAQ gene. Together with GNA11, it functions as a Gq alpha subunit.
Moesin is a protein that in humans is encoded by the MSN gene.
Radixin is a protein that in humans is encoded by the RDX gene.
Na(+)/H(+) exchange regulatory cofactor NHE-RF3 is a protein that in humans is encoded by the PDZK1 gene.
Golgi-associated PDZ and coiled-coil motif-containing protein is a protein that in humans is encoded by the GOPC gene.
Acid-sensing ion channel 1 (ASIC1) also known as amiloride-sensitive cation channel 2, neuronal (ACCN2) or brain sodium channel 2 (BNaC2) is a protein that in humans is encoded by the ASIC1 gene. The ASIC1 gene is one of the five paralogous genes that encode proteins that form trimeric acid-sensing ion channels (ASICs) in mammals. The cDNA of this gene was first cloned in 1996. The ASIC genes have splicing variants that encode different proteins that are called isoforms.
Plexin B1 is a protein of the plexin family that in humans is encoded by the PLXNB1 gene.
H+/Cl− exchange transporter 3 is a protein that in humans is encoded by the CLCN3 gene.
Electroneutral sodium bicarbonate exchanger 1 is a protein that in humans is encoded by the SLC4A8 gene.
Prostaglandin F2 receptor negative regulator is a protein that in humans is encoded by the PTGFRN gene. PTGFRN has also been designated as CD315.
Myosin regulatory light chain interacting protein, also known as MYLIP, is a protein that in humans is encoded by the MYLIP gene.
Sodium/hydrogen exchanger 6 is an integral membrane protein that in humans is encoded by the SLC9A6 gene. It was originally thought to be a mitochondrial-targeted protein, but subsequent studies have localized it to the plasma membrane and recycling endosomes.
This article incorporates text from the United States National Library of Medicine, which is in the public domain.