CGB7

Chorionic gonadotropin, beta polypeptide 7
File:PBB Protein CGB7 image.jpg PDB rendering based on 1hcn.
Available structures PDB List of PDB id codes 1hcn​, 1hrp​, 1qfw​
Identifiers
Symbols	CGB7 ; CG-beta-a; FLJ35403; FLJ43118
External IDs	Template:OMIM5
Gene ontology Molecular function Template:GNF GO Cellular component Template:GNF GO Template:GNF GO Biological process Template:GNF GO Template:GNF GO Template:GNF GO Template:GNF GO
RNA expression pattern
File:PBB GE CGB7 205387 s at tn.png
More reference expression data
Orthologs
Template:GNF Ortholog box
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a

Chorionic gonadotropin, beta polypeptide 7, also known as CGB7, is a human gene.

This gene is a member of the glycoprotein hormone beta chain family and encodes the beta 7 subunit of chorionic gonadotropin (CG). Glycoprotein hormones are heterodimers consisting of a common alpha subunit and a unique beta subunit which confers biological specificity. CG is produced by the trophoblastic cells of the placenta and stimulates the ovaries to synthesize the steroids that are essential for the maintenance of pregnancy. The beta subunit of CG is encoded by 6 genes which are arranged in tandem and inverted pairs on chromosome 19q13.3 and contiguous with the luteinizing hormone beta subunit gene.

Further reading

• Morgan FJ, Birken S, Canfield RE (1975). "The amino acid sequence of human chorionic gonadotropin. The alpha subunit and beta subunit". J. Biol. Chem. 250 (13): 5247–58. PMID 1150658.CS1 maint: Multiple names: authors list (link)
• Bo M, Boime I (1992). "Identification of the transcriptionally active genes of the chorionic gonadotropin beta gene cluster in vivo". J. Biol. Chem. 267 (5): 3179–84. PMID 1371113.
• Beebe JS, Mountjoy K, Krzesicki RF; et al. (1990). "Role of disulfide bond formation in the folding of human chorionic gonadotropin beta subunit into an alpha beta dimer assembly-competent form". J. Biol. Chem. 265 (1): 312–7. PMID 1688430.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Weisshaar G, Hiyama J, Renwick AG (1992). "Site-specific N-glycosylation of human chorionic gonadotrophin--structural analysis of glycopeptides by one- and two-dimensional 1H NMR spectroscopy". Glycobiology. 1 (4): 393–404. PMID 1820200.CS1 maint: Multiple names: authors list (link)
• Policastro PF, Daniels-McQueen S, Carle G, Boime I (1986). "A map of the hCG beta-LH beta gene cluster". J. Biol. Chem. 261 (13): 5907–16. PMID 2422163.CS1 maint: Multiple names: authors list (link)
• Jameson JL, Lindell CM, Habener JF (1986). "Evolution of different transcriptional start sites in the human luteinizing hormone and chorionic gonadotropin beta-subunit genes". DNA. 5 (3): 227–34. PMID 2424697.CS1 maint: Multiple names: authors list (link)
• Otani T, Otani F, Krych M; et al. (1988). "Identification of a promoter region in the CG beta gene cluster". J. Biol. Chem. 263 (15): 7322–9. PMID 2452822.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Jameson JL, Lindell CM (1989). "Isolation and characterization of the human chorionic gonadotropin beta subunit (CG beta) gene cluster: regulation of transcriptionally active CG beta gene by cyclic AMP". Mol. Cell. Biol. 8 (12): 5100–7. PMID 2468994.
• Carlsen RB, Bahl OP, Swaminathan N (1973). "Human chorionic gonadotropin. Linear amino acid sequence of the beta subunit". J. Biol. Chem. 248 (19): 6810–27. PMID 4795659.CS1 maint: Multiple names: authors list (link)
• Policastro P, Ovitt CE, Hoshina M; et al. (1983). "The beta subunit of human chorionic gonadotropin is encoded by multiple genes". J. Biol. Chem. 258 (19): 11492–9. PMID 6194155.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Julier C, Weil D, Couillin P; et al. (1984). "The beta chorionic gonadotropin-beta luteinizing gene cluster maps to human chromosome 19". Hum. Genet. 67 (2): 174–7. PMID 6204923.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Talmadge K, Boorstein WR, Vamvakopoulos NC; et al. (1985). "Only three of the seven human chorionic gonadotropin beta subunit genes can be expressed in the placenta". Nucleic Acids Res. 12 (22): 8415–36. PMID 6209613.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Talmadge K, Boorstein WR, Fiddes JC (1984). "The human genome contains seven genes for the beta-subunit of chorionic gonadotropin but only one gene for the beta-subunit of luteinizing hormone". DNA. 2 (4): 281–9. PMID 6319099.CS1 maint: Multiple names: authors list (link)
• Talmadge K, Vamvakopoulos NC, Fiddes JC (1984). "Evolution of the genes for the beta subunits of human chorionic gonadotropin and luteinizing hormone". Nature. 307 (5946): 37–40. PMID 6690982.CS1 maint: Multiple names: authors list (link)
• Fiddes JC, Goodman HM (1980). "The cDNA for the beta-subunit of human chorionic gonadotropin suggests evolution of a gene by readthrough into the 3'-untranslated region". Nature. 286 (5774): 684–7. PMID 6774259.
• Mise T, Bahl OP (1981). "Assignment of disulfide bonds in the beta subunit of human chorionic gonadotropin". J. Biol. Chem. 256 (13): 6587–92. PMID 7240231.
• Birken S, Fetherston J, Canfield R, Boime I (1981). "The amino acid sequences of the prepeptides contained in the alpha and beta subunits of human choriogonadotropin". J. Biol. Chem. 256 (4): 1816–23. PMID 7462224.CS1 maint: Multiple names: authors list (link)
• Lunardi-Iskandar Y, Bryant JL, Zeman RA; et al. (1995). "Tumorigenesis and metastasis of neoplastic Kaposi's sarcoma cell line in immunodeficient mice blocked by a human pregnancy hormone". Nature. 375 (6526): 64–8. doi:10.1038/375064a0. PMID 7723844.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Lapthorn AJ, Harris DC, Littlejohn A; et al. (1994). "Crystal structure of human chorionic gonadotropin". Nature. 369 (6480): 455–61. doi:10.1038/369455a0. PMID 8202136.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)
• Bellet D, Lazar V, Bièche I; et al. (1997). "Malignant transformation of nontrophoblastic cells is associated with the expression of chorionic gonadotropin beta genes normally transcribed in trophoblastic cells". Cancer Res. 57 (3): 516–23. PMID 9012484.CS1 maint: Explicit use of et al. (link) CS1 maint: Multiple names: authors list (link)