title: Identification of beta subunit of the rhesus monkey chorionic gonadotropin (rmCG).
abstract: Chorionic gonadotropin (CG) is a placental derived hormone that plays a crucial role in successful implantation and establishment of early pregnancy in the primates. The rhesus monkey was chosen as a model to understand the feasibility of developing human DNA immuno-contraceptive. The coding region of rhesus monkey CG beta-subunit (rmCGbeta) was isolated by the TDRT-PCR method. The nucleotide sequence including the leader peptide was 499 nucleotide long and encoded 166 amino acids. In comparing with the previous known primates CG beta-subunits, the rmCGbeta was the highest degree of homology with baboon CG beta-subunit at the deduced amino acid sequence (94%), 79.5% homology with human CG beta-subunit and 70.4% homology with marmoset monkey CG beta-subunit. The eukaryotic expression vector pCMV4-rmCGbeta inserted full-coding cDNA sequence of rmCGbeta was constructed, and the expression of rmCG beta-subunit in HeLa cells transient expressing system in vitro and BALB/c mice in vivo was determined. The results demonstrated that the recombinant PCMV4-rmCGbeta eukaryotic expression vector could express rmCG beta-subunit in vitro and in vivo.
authors.affiliation: State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Sciences, Beijing.
authors.forename: Y
authors.initials: Y
authors.lastname: Chen
authors.forename: Z
authors.initials: Z
authors.lastname: Liu
authors.forename: B
authors.initials: B
authors.lastname: Wang
authors.forename: J P
authors.initials: JP
authors.lastname: Peng
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D002144:Callithrix; D006063:Chorionic Gonadotropin / Q000737:chemistry* / Q000235:genetics; D004797:Enzyme-Linked Immunosorbent Assay; D005260:Female; D006031:Glycosylation; D006367:HeLa Cells; D006801:Humans; D008253:Macaca mulatta; D051379:Mice; D008807:Mice, Inbred BALB C; D008969:Molecular Sequence Data; D010215:Papio; D010446:Peptide Fragments / Q000096:biosynthesis* / Q000235:genetics; D010920:Placenta / Q000737:chemistry; D010957:Plasmids / Q000235:genetics; D011247:Pregnancy; D020133:Reverse Transcriptase Polymerase Chain Reaction; D017386:Sequence Homology, Amino Acid; D012689:Sequence Homology, Nucleic Acid; D013045:Species Specificity; D014162:Transfection
chemical_list: D006063:Chorionic Gonadotropin; D010446:Peptide Fragments