RHCG

Rh family, C glycoprotein, also known as RHCG, is a protein that in humans is encoded by the RHCG gene.

RHCG
Available structures PDB Ortholog search: PDBe RCSB List of PDB id codes 3HD6
Identifiers
Aliases	RHCG, C15orf6, PDRC2, RHGK, SLC42A3, Rh family C glycoprotein
External IDs	OMIM: 605381; MGI: 1888517; HomoloGene: 32310; GeneCards: RHCG; OMA:RHCG - orthologs
Gene location (Human) Chr. Chromosome 15 (human) Band 15q26.1 Start 89,471,398 bp End 89,496,589 bp
Gene location (Mouse) Chr. Chromosome 7 (mouse) Band 7 D2|7 45.09 cM Start 79,243,111 bp End 79,267,405 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in mucosa of pharynx buccal mucosa cell oral cavity body of tongue cervix epithelium testicle gums gingival epithelium human penis periodontal fiber Top expressed in right kidney human kidney spermatocyte spermatid seminiferous tubule renal pelvis medullary collecting duct embryo renal calyx ventricular zone More reference expression data BioGPS More reference expression data
Gene ontology Molecular function ankyrin binding ammonium transmembrane transporter activity identical protein binding Cellular component integral component of membrane membrane plasma membrane integral component of plasma membrane basolateral plasma membrane apical plasma membrane extracellular exosome cytoplasmic vesicle Biological process ammonium transmembrane transport epithelial cell differentiation amine transport organic cation transport transepithelial ammonium transport cellular ion homeostasis regulation of pH homeostatic process transport Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 51458 56315 Ensembl ENSG00000140519 ENSMUSG00000030549 UniProt Q9UBD6 Q9QXP0 RefSeq (mRNA) NM_016321 NM_001321041 NM_019799 RefSeq (protein) NP_001307970 NP_057405 NP_062773 Location (UCSC) Chr 15: 89.47 – 89.5 Mb Chr 7: 79.24 – 79.27 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

Function

RHCG plays a critical role in ammonium handling and pH homeostasis in the kidney. The structure of the RHCG protein indicates that it has a hydrophobic ammonia-conducting channel and shows that it shares a common fold with the ammonia transporters, thus making it an ammonia transporter.

Further reading

• Bakouh N, Benjelloun F, Cherif-Zahar B, Planelles G (2006). "The challenge of understanding ammonium homeostasis and the role of the Rh glycoproteins". Transfusion Clinique et Biologique. 13 (1–2): 139–46. doi:10.1016/j.tracli.2006.02.008. PMID 16564724.
• Zidi-Yahiaoui N, Ripoche P, Le Van Kim C, et al. (2006). "Ammonium transport properties of HEK293 cells expressing RhCG mutants: preliminary analysis of structure/function by site-directed mutagenesis". Transfusion Clinique et Biologique. 13 (1–2): 128–31. doi:10.1016/j.tracli.2006.02.025. PMID 16580862.
• Ridgwell K, Spurr NK, Laguda B, et al. (1992). "Isolation of cDNA clones for a 50 kDa glycoprotein of the human erythrocyte membrane associated with Rh (rhesus) blood-group antigen expression". Biochem. J. 287 (1): 223–8. doi:10.1042/bj2870223. PMC 1133147. PMID 1417776.
• Liu Z, Chen Y, Mo R, et al. (2000). "Characterization of human RhCG and mouse Rhcg as novel nonerythroid Rh glycoprotein homologues predominantly expressed in kidney and testis". J. Biol. Chem. 275 (33): 25641–51. doi:10.1074/jbc.M003353200. PMID 10852913.
• Marini AM, Matassi G, Raynal V, et al. (2000). "The human Rhesus-associated RhAG protein and a kidney homologue promote ammonium transport in yeast". Nat. Genet. 26 (3): 341–4. doi:10.1038/81656. PMID 11062476. S2CID 21313219.
• Chen BS, Xu ZX, Xu X, et al. (2002). "RhCG is downregulated in oesophageal squamous cell carcinomas, but expressed in multiple squamous epithelia". Eur. J. Cancer. 38 (14): 1927–36. doi:10.1016/S0959-8049(02)00190-9. PMID 12204676.
• Verlander JW, Miller RT, Frank AE, et al. (2003). "Localization of the ammonium transporter proteins RhBG and RhCG in mouse kidney". Am. J. Physiol. Renal Physiol. 284 (2): F323–37. doi:10.1152/ajprenal.00050.2002. PMID 12388412.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. Bibcode:2002PNAS...9916899M. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Nicolas V, Le Van Kim C, Gane P, et al. (2003). "Rh-RhAG/ankyrin-R, a new interaction site between the membrane bilayer and the red cell skeleton, is impaired by Rh(null)-associated mutation". J. Biol. Chem. 278 (28): 25526–33. doi:10.1074/jbc.M302816200. PMID 12719424.
• Hemker MB, Cheroutre G, van Zwieten R, et al. (2003). "The Rh complex exports ammonium from human red blood cells". Br. J. Haematol. 122 (2): 333–40. doi:10.1046/j.1365-2141.2003.04425.x. PMID 12846905. S2CID 3094213.
• Bakouh N, Benjelloun F, Hulin P, et al. (2004). "NH₃ is involved in the NH₄⁺ transport induced by the functional expression of the human Rh C glycoprotein". J. Biol. Chem. 279 (16): 15975–83. doi:10.1074/jbc.M308528200. PMID 14761968.
• Gerhard DS, Wagner L, Feingold EA, et al. (2004). "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)". Genome Res. 14 (10B): 2121–7. doi:10.1101/gr.2596504. PMC 528928. PMID 15489334.
• Zidi-Yahiaoui N, Mouro-Chanteloup I, D'Ambrosio AM, et al. (2006). "Human Rhesus B and Rhesus C glycoproteins: properties of facilitated ammonium transport in recombinant kidney cells". Biochem. J. 391 (Pt 1): 33–40. doi:10.1042/BJ20050657. PMC 1237136. PMID 15929723.
• Huang CH, Peng J (2005). "Evolutionary conservation and diversification of Rh family genes and proteins". Proc. Natl. Acad. Sci. U.S.A. 102 (43): 15512–7. Bibcode:2005PNAS..10215512H. doi:10.1073/pnas.0507886102. PMC 1266151. PMID 16227429.
• Marini AM, Boeckstaens M, Benjelloun F, et al. (2006). "Structural involvement in substrate recognition of an essential aspartate residue conserved in Mep/Amt and Rh-type ammonium transporters". Curr. Genet. 49 (6): 364–74. doi:10.1007/s00294-006-0062-5. PMID 16477434. S2CID 28636156.