STAP1

Signal transducing adaptor family member 1

PDB rendering based on 1x1f.
Identifiers
Symbols STAP1; BRDG1; STAP-1
External IDs OMIM604298 MGI1926193 HomoloGene8103 GeneCards: STAP1 Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 26228 56792
Ensembl ENSG00000035720 ENSMUSG00000029254
UniProt Q9ULZ2 Q9JM90
RefSeq (mRNA) NM_012108 NM_019992.3
RefSeq (protein) NP_036240 NP_064376.1
Location (UCSC) Chr 4:
68.42 – 68.47 Mb
Chr 5:
86.5 – 86.53 Mb
PubMed search [1] [2]

Signal-transducing adaptor protein 1 is a protein that in humans is encoded by the STAP1 gene.[1][2][3]

The protein encoded by this gene functions as a docking protein acting downstream of Tec tyrosine kinase in B cell antigen receptor signaling. The protein is directly phosphorylated by Tec in vitro where it participates in a positive feedback loop, increasing Tec activity. A mouse ortholog, stem cell adaptor protein 1, shares 83% identity with its human counterpart.[3]

Interactions

STAP1 has been shown to interact with C19orf2.[4]

References

  1. ^ Ohya K, Kajigaya S, Kitanaka A, Yoshida K, Miyazato A, Yamashita Y, Yamanaka T, Ikeda U, Shimada K, Ozawa K, Mano H (Nov 1999). "Molecular cloning of a docking protein, BRDG1, that acts downstream of the Tec tyrosine kinase". Proc Natl Acad Sci U S A 96 (21): 11976–81. doi:10.1073/pnas.96.21.11976. PMC 18397. PMID 10518561. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=18397. 
  2. ^ Masuhara M, Nagao K, Nishikawa M, Sasaki M, Yoshimura A, Osawa M (Mar 2000). "Molecular cloning of murine STAP-1, the stem-cell-specific adaptor protein containing PH and SH2 domains". Biochem Biophys Res Commun 268 (3): 697–703. doi:10.1006/bbrc.2000.2223. PMID 10679268. 
  3. ^ a b "Entrez Gene: BRDG1 BCR downstream signaling 1". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=26228. 
  4. ^ Gstaiger, Matthias; Luke Brian, Hess Daniel, Oakeley Edward J, Wirbelauer Christiane, Blondel Marc, Vigneron Marc, Peter Matthias, Krek Wilhelm (Nov. 2003). "Control of nutrient-sensitive transcription programs by the unconventional prefoldin URI". Science (United States) 302 (5648): 1208–12. doi:10.1126/science.1088401. PMID 14615539. 

Further reading