STT3A, Official Symbol STT3Aprovided by HGNC Official Full Name STT3 oligosaccharyltransferase complex catalytic subunit Aprovided by HGNC Primary source HGNC:HGNC:6172 See related Ensembl:ENSG00000134910 MIM:601134; AllianceGenome:HGNC:6172 Gene type protein coding RefSeq status REVIEWED Organism Homo sapiens Lineage Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo Also known as TMC; ITM1; STT3-A; CDG1WAD; CDG1WAR Summary The protein encoded by this gene is a catalytic subunit of the N-oligosaccharyltransferase (OST) complex, which functions in the endoplasmic reticulum to transfer glycan chains to asparagine residues of target proteins. A separate complex containing a similar catalytic subunit with an overlapping function also exists. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2015] Expression Ubiquitous expression in thyroid (RPKM 41.7), endometrium (RPKM 25.2) and 25 other tissues See more Orthologs mouse all