{"symbol":"PSG1","synonyms":["SP1","PBG1","FL-NCA-1/2","PS-BETA-G-1","B1G1","DHFRP2","PSBG1","PSG95","PSGIIA","PS-BETA-C/D","PSBG-1","CD66F","PSGGA"],"name":"pregnancy specific beta-1-glycoprotein 1","description":"The human placenta is a multihormonal endocrine organ that produces hormones, enzymes, and other molecules that support fetal survival and development. Pregnancy-specific beta-1-glycoprotein (PSBG, PSG) is a major product of the syncytiotrophoblast, reaching concentrations of 100 to 290 mg/l at term in the serum of pregnant women (Horne et al., 1976 [PubMed 971765]). PSG is a member of the immunoglobulin (Ig) superfamily (Watanabe and Chou, 1988 [PubMed 3257488]; Streydio et al., 1988 [PubMed 3260773]).[supplied by OMIM, Oct 2009]","ncbiEntrezGeneId":5669,"ncbiEntrezGeneUrl":"http://www.ncbi.nlm.nih.gov/gene/5669","proteins":[{"symbol":"PSG1_HUMAN","href":"/api/1.0/protein/PSG1_HUMAN"}],"hgncRootFamilies":[{"name":"CD molecules (CD)","href":"/api/1.0/gene_family/CD+molecules+%28CD%29"},{"name":"Carcinoembryonic antigen family (CEACAM, PSG)","href":"/api/1.0/gene_family/Carcinoembryonic+antigen+family+%28CEACAM%2C+PSG%29"},{"name":"Immunoglobulin superfamily domain containing","href":"/api/1.0/gene_family/Immunoglobulin+superfamily+domain+containing"}]}