SMCP

This article is about the human gene. For the communication standard, see Standard Marine Communication Phrases. For the video game, see Sonic Mega Collection § Sonic Mega Collection Plus. For the company, see SM Culture Partners.

Sperm mitochondrial-associated cysteine-rich protein is a protein that in humans is encoded by the SMCP gene.

SMCP
Identifiers
Aliases	SMCP, HSMCSGEN1, MCS, MCSP, sperm mitochondria associated cysteine rich protein
External IDs	OMIM: 601148; MGI: 96945; HomoloGene: 136205; GeneCards: SMCP; OMA:SMCP - orthologs
Gene location (Human) Chr. Chromosome 1 (human) Band 1q21.3 Start 152,878,322 bp End 152,885,047 bp
Gene location (Mouse) Chr. Chromosome 3 (mouse) Band 3|3 F1 Start 92,491,174 bp End 92,496,304 bp
RNA expression pattern Bgee Human Mouse (ortholog) Top expressed in sperm right testis left testis testicle buccal mucosa cell tail of epididymis gonad caput epididymis corpus epididymis rhombencephalon Top expressed in seminiferous tubule spermatid spermatocyte right kidney proximal tubule epithelium of small intestine human kidney migratory enteric neural crest cell ileum zygote More reference expression data BioGPS More reference expression data
Gene ontology Molecular function protein binding molecular function Cellular component cytoplasm mitochondrial membranes mitochondrion membrane Biological process flagellated sperm motility penetration of zona pellucida single fertilization Sources:Amigo / QuickGO
Orthologs Species Human Mouse Entrez 4184 17235 Ensembl ENSG00000163206 ENSMUSG00000074435 UniProt P49901 P15265 RefSeq (mRNA) NM_030663 NM_008574 RefSeq (protein) NP_109588 NP_032600 Location (UCSC) Chr 1: 152.88 – 152.89 Mb Chr 3: 92.49 – 92.5 Mb PubMed search
Wikidata
View/Edit Human View/Edit Mouse

Function

Sperm mitochondria differ in morphology and subcellular localization from those of somatic cells. They are elongated, flattened, and arranged circumferentially to form a helical coiled sheath in the midpiece of the sperm flagellum. The protein encoded by this gene localizes to the capsule associated with the mitochondrial outer membranes and is thought to function in the organization and stabilization of the helical structure of the sperm's mitochondrial sheath.

Further reading

• Behne D, Kyriakopoulos A (2001). "Mammalian selenium-containing proteins". Annual Review of Nutrition. 21: 453–73. doi:10.1146/annurev.nutr.21.1.453. PMID 11375445.
• Karimpour I, Cutler M, Shih D, Smith J, Kleene KC (Nov 1992). "Sequence of the gene encoding the mitochondrial capsule selenoprotein of mouse sperm: identification of three in-phase TGA selenocysteine codons". DNA and Cell Biology. 11 (9): 693–9. doi:10.1089/dna.1992.11.693. PMID 1418626.
• Saaranen M, Suistomaa U, Vanha-Perttula T (Apr 1989). "Semen selenium content and sperm mitochondrial volume in human and some animal species". Human Reproduction. 4 (3): 304–8. doi:10.1093/oxfordjournals.humrep.a136893. PMID 2715306.
• Cataldo L, Baig K, Oko R, Mastrangelo MA, Kleene KC (Nov 1996). "Developmental expression, intracellular localization, and selenium content of the cysteine-rich protein associated with the mitochondrial capsules of mouse sperm". Molecular Reproduction and Development. 45 (3): 320–31. doi:10.1002/(SICI)1098-2795(199611)45:3<320::AID-MRD9>3.0.CO;2-U. PMID 8916043. S2CID 10296253.
• Herr JC, Thomas D, Bush LA, Coonrod S, Khole V, Howards SS, Flickinger CJ (Aug 1999). "Sperm mitochondria-associated cysteine-rich protein (SMCP) is an autoantigen in Lewis rats". Biology of Reproduction. 61 (2): 428–35. doi:10.1095/biolreprod61.2.428. PMID 10411523.
• Nayernia K, Adham IM, Burkhardt-Göttges E, Neesen J, Rieche M, Wolf S, Sancken U, Kleene K, Engel W (May 2002). "Asthenozoospermia in mice with targeted deletion of the sperm mitochondrion-associated cysteine-rich protein (Smcp) gene". Molecular and Cellular Biology. 22 (9): 3046–52. doi:10.1128/MCB.22.9.3046-3052.2002. PMC 133774. PMID 11940662.
• Hawthorne SK, Goodarzi G, Bagarova J, Gallant KE, Busanelli RR, Olend WJ, Kleene KC (Mar 2006). "Comparative genomics of the sperm mitochondria-associated cysteine-rich protein gene". Genomics. 87 (3): 382–91. doi:10.1016/j.ygeno.2005.09.010. PMID 16325371.
• Yatsenko AN, Roy A, Chen R, Ma L, Murthy LJ, Yan W, Lamb DJ, Matzuk MM (Dec 2006). "Non-invasive genetic diagnosis of male infertility using spermatozoal RNA: KLHL10 mutations in oligozoospermic patients impair homodimerization". Human Molecular Genetics. 15 (23): 3411–9. doi:10.1093/hmg/ddl417. PMID 17047026.