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Gene: STT3A (STT3 oligosaccharyltransferase complex catalytic subunit A) Homo sapiens
Symbol: STT3A
Name: STT3 oligosaccharyltransferase complex catalytic subunit A
Description: Exhibits dolichyl-diphosphooligosaccharide-protein glycotransferase activity. Involved in co-translational protein modification and protein N-linked glycosylation via asparagine. Localizes to oligosaccharyltransferase complex. Implicated in congenital disorder of glycosylation Iw.
Type: protein-coding
RefSeq Status: REVIEWED
Also known as: B5; dolichyl-diphosphooligosaccharide protein glycotransferase; dolichyl-diphosphooligosaccharide--protein glycosyltransferase subunit STT3A; FLJ27038; integral membrane protein 1; integral transmembrane protein 1; ITM1; MGC9042; oligosaccharyl transferase subunit STT3A; STT3, subunit of the oligosaccharyltransferase complex, homolog A; STT3-A; STT3A, catalytic subunit of the oligosaccharyltransferase complex; STT3A, cataylic subunit of the oligosaccharyltransferase complex; STT3A, subunit of the oligosaccharyltransferase complex (catalytic); TMC; transmembrane conserved; transmembrane protein TMC
Related Pseudogenes: AL358335.1  
Allele / Splice: See ClinVar data
Latest Assembly: GRCh38 - Human Genome Assembly GRCh38
Human AssemblyChrPosition (strand)SourceGenome Browsers
GRCh38 Ensembl11125,591,712 - 125,625,215 (+)EnsemblGRCh38hg38GRCh38
GRCh3811125,592,847 - 125,623,091 (+)NCBIGRCh38GRCh38hg38GRCh38
GRCh3711125,462,690 - 125,492,654 (+)NCBIGRCh37GRCh37hg19GRCh37
Build 3611124,967,967 - 124,996,168 (+)NCBINCBI36hg18NCBI36
Build 3411124,967,966 - 124,996,162NCBI
Celera11122,623,051 - 122,651,590 (+)NCBI
Cytogenetic Map11q24.2NCBI
HuRef11121,404,246 - 121,434,022 (+)NCBIHuRef
CHM1_111125,348,849 - 125,378,778 (+)NCBICHM1_1
JBrowse: View Region in Genome Browser (JBrowse)

Disease Annotations
Gene-Chemical Interaction Annotations
Gene Ontology Annotations
Molecular Pathway Annotations
Phenotype Annotations
References - curated
References - uncurated


Comparative Map Data
Position Markers
miRNA Target Status


RNA-SEQ Expression


Nucleotide Sequences
Protein Sequences
Clinical Variants

Additional Information

External Database Links
Nomenclature History
More on STT3A
Alliance Gene
Ensembl Gene
JBrowse: hg19 hg38
HGNC Report
NCBI Genome Data Viewer

RGD Object Information
RGD ID: 1342989
Created: 2005-03-08
Species: Homo sapiens
Last Modified: 2020-06-18
Status: ACTIVE


RGD is funded by grant HL64541 from the National Heart, Lung, and Blood Institute on behalf of the NIH.