|Signal transducer and activator of transcription 5B|
PDB rendering based on 1y1u.
|External IDs||ChEMBL: GeneCards:|
|RNA expression pattern|
Signal transducer and activator of transcription 5B is a protein that in humans is encoded by the STAT5B gene. STAT5B orthologs  have been identified in most placentals for which complete genome data are available.
The protein encoded by this gene is a member of the STAT family of transcription factors. In response to cytokines and growth factors, STAT family members are phosphorylated by the receptor associated kinases, and then form homo- or heterodimers that translocate to the cell nucleus where they act as transcription activators. This protein mediates the signal transduction triggered by various cell ligands, such as IL2, IL4, CSF1, and different growth hormones. It has been shown to be involved in diverse biological processes, such as TCR signaling, apoptosis, adult mammary gland development, and sexual dimorphism of liver gene expression. This gene was found to fuse to retinoic acid receptor-alpha (RARA) gene in a small subset of acute promyelocytic leukemias (APML). The dysregulation of the signaling pathways mediated by this protein may be the cause of the APML.
- Lin JX, Mietz J, Modi WS, John S, Leonard WJ (July 1996). "Cloning of human Stat5B. Reconstitution of interleukin-2-induced Stat5A and Stat5B DNA binding activity in COS-7 cells". J Biol Chem 271 (18): 10738–44. doi:10.1074/jbc.271.18.10738. PMID 8631883.
- "OrthoMaM phylogenetic marker: STAT5B coding sequence".
- "Entrez Gene: STAT5B signal transducer and activator of transcription 5B".
- Yu, C L; Jin Y J; Burakoff S J (January 2000). "Cytosolic tyrosine dephosphorylation of STAT5. Potential role of SHP-2 in STAT5 regulation". J. Biol. Chem. (UNITED STATES) 275 (1): 599–604. doi:10.1074/jbc.275.1.599. ISSN 0021-9258. PMID 10617656.
- Barahmand-Pour, F; Meinke A; Groner B; Decker T (May 1998). "Jak2-Stat5 interactions analyzed in yeast". J. Biol. Chem. (UNITED STATES) 273 (20): 12567–75. doi:10.1074/jbc.273.20.12567. ISSN 0021-9258. PMID 9575217.
- Fujitani, Y; Hibi M; Fukada T; Takahashi-Tezuka M; Yoshida H; Yamaguchi T; Sugiyama K; Yamanaka Y; Nakajima K; Hirano T (February 1997). "An alternative pathway for STAT activation that is mediated by the direct interaction between JAK and STAT". Oncogene (ENGLAND) 14 (7): 751–61. doi:10.1038/sj.onc.1200907. ISSN 0950-9232. PMID 9047382.
- Stöcklin, E; Wissler M; Gouilleux F; Groner B (October 1996). "Functional interactions between Stat5 and the glucocorticoid receptor". Nature (ENGLAND) 383 (6602): 726–8. doi:10.1038/383726a0. ISSN 0028-0836. PMID 8878484.
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