Upon receipt, store at -20°C or -80°C. Avoid repeated freeze.
Lead Time
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Catalyzes the N-acetylation of the amino acid thialysine (S-(2-aminoethyl)-L-cysteine), a L-lysine analog with the 4-methylene group substituted with a sulfur. May also catalyze acetylation of polyamines, such as norspermidine, spermidine or spermine. However, ability to acetylate polyamines is weak, suggesting that it does not act as a diamine acetyltransferase in vivo.
Gene References into Functions
Crystallization of this protein and its recombinant form and its complexation with coenzyme A. PMID: 16596569
The expression of three messengers coding for SAT-1, SAT-2 and GalNAcT-1 in human samples of intestinal cancer and some cell lines (breast cancer and melanomas), was evaluated. PMID: 17119850
SSAT2 is an essential component of the ubiquitin ligase complex that regulates hypoxia-inducible factor 1alpha PMID: 17558023
SSAT1, which shares 46% amino acid identity with SSAT2, also binds to HIF-1alpha and promotes its ubiquitination/degradation. However, in contrast to SSAT2, SSAT1 acts by stabilizing the interaction of HIF-1alpha with RACK1 PMID: 17875644
expression of SSAT mediated by Ad-SSAT infection inhibits the growth of colorectal cancer cells PMID: 18949426
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Subcellular Location
Cytoplasm.
Protein Families
Acetyltransferase family
Tissue Specificity
Widely expressed. Under physiological conditions, SSAT2 is expressed at lower level that SSAT1 (SSAT). Many tissues express only SSAT1, several tissues express both SSAT1 and SSAT2, and bone, cervix, ovary and pineal gland expressed only SSAT2.