ZFP36

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External IDs	GeneCards: [1]
Orthologs
Species	Human	Mouse
Entrez	n/a	n/a
Ensembl	n/a	n/a
UniProt	n/a	n/a
RefSeq (mRNA)	n/a	n/a
RefSeq (protein)	n/a	n/a
Location (UCSC)	n/a	n/a
PubMed search	n/a	n/a
Wikidata
View/Edit Human

Tristetraprolin (TTP), also known as zinc finger protein 36 homolog (ZFP36), is a protein that in humans, mice and rats is encoded by the ZFP36 gene. It is a member of the TIS11 (TPA-induced sequence) family, along with butyrate response factors 1 and 2.

TTP binds to AU-rich elements (AREs) in the 3'-untranslated regions (UTRs) of the mRNAs of some cytokines and promotes their degradation. For example, TTP is a component of a negative feedback loop that interferes with TNF-alpha production by destabilizing its mRNA. Mice deficient in TTP develop a complex syndrome of inflammatory diseases.

Interactions

ZFP36 has been shown to interact with 14-3-3 protein family members, such as YWHAH, and with NUP214, a member of the nuclear pore complex.

Regulation

Post-transcriptionally, TTP is regulated in several ways. The subcellular localization of TTP is influenced by interactions with protein partners such as the 14-3-3 family of proteins. These interactions and, possibly, interactions with target mRNAs are affected by the phosphorylation state of TTP, as the protein can be posttranslationally modified by a large number of protein kinases. There is some evidence that the TTP transcript may also be targeted by microRNAs, such as miR-29a.

Further reading

• Blackshear PJ (2003). "Tristetraprolin and other CCCH tandem zinc-finger proteins in the regulation of mRNA turnover". Biochem. Soc. Trans. 30 (Pt 6): 945–52. doi:10.1042/bst0300945. PMID 12440952.
• Carrick DM, Lai WS, Blackshear PJ (2005). "The tandem CCCH zinc finger protein tristetraprolin and its relevance to cytokine mRNA turnover and arthritis". Arthritis Research & Therapy. 6 (6): 248–64. doi:10.1186/ar1441. PMC 1064869. PMID 15535838.
• Taylor GA, Lai WS, Oakey RJ, et al. (1991). "The human TTP protein: sequence, alignment with related proteins, and chromosomal localization of the mouse and human genes". Nucleic Acids Res. 19 (12): 3454. doi:10.1093/nar/19.12.3454. PMC 328350. PMID 2062660.
• Lai WS, Stumpo DJ, Blackshear PJ (1990). "Rapid insulin-stimulated accumulation of an mRNA encoding a proline-rich protein". J. Biol. Chem. 265 (27): 16556–63. PMID 2204625.
• Taylor GA, Thompson MJ, Lai WS, Blackshear PJ (1995). "Phosphorylation of tristetraprolin, a potential zinc finger transcription factor, by mitogen stimulation in intact cells and by mitogen-activated protein kinase in vitro". J. Biol. Chem. 270 (22): 13341–7. doi:10.1074/jbc.270.22.13341. PMID 7768935.
• Heximer SP, Forsdyke DR (1993). "A human putative lymphocyte G0/G1 switch gene homologous to a rodent gene encoding a zinc-binding potential transcription factor". DNA Cell Biol. 12 (1): 73–88. doi:10.1089/dna.1993.12.73. PMID 8422274.
• Huebner K, Druck T, LaForgia S, et al. (1993). "Chromosomal localization of four human zinc finger cDNAs". Hum. Genet. 91 (3): 217–22. doi:10.1007/BF00218259. PMID 8478004.
• Lai WS, Carballo E, Thorn JM, et al. (2000). "Interactions of CCCH zinc finger proteins with mRNA. Binding of tristetraprolin-related zinc finger proteins to Au-rich elements and destabilization of mRNA". J. Biol. Chem. 275 (23): 17827–37. doi:10.1074/jbc.M001696200. PMID 10751406.
• Dintilhac A, Bernués J (2002). "HMGB1 interacts with many apparently unrelated proteins by recognizing short amino acid sequences". J. Biol. Chem. 277 (9): 7021–8. doi:10.1074/jbc.M108417200. PMID 11748221.
• Lai WS, Kennington EA, Blackshear PJ (2002). "Interactions of CCCH zinc finger proteins with mRNA: non-binding tristetraprolin mutants exert an inhibitory effect on degradation of AU-rich element-containing mRNAs". J. Biol. Chem. 277 (11): 9606–13. doi:10.1074/jbc.M110395200. PMID 11782475.
• Johnson BA, Stehn JR, Yaffe MB, Blackwell TK (2002). "Cytoplasmic localization of tristetraprolin involves 14-3-3-dependent and -independent mechanisms". J. Biol. Chem. 277 (20): 18029–36. doi:10.1074/jbc.M110465200. PMID 11886850.
• Brooks SA, Connolly JE, Diegel RJ, et al. (2002). "Analysis of the function, expression, and subcellular distribution of human tristetraprolin". Arthritis Rheum. 46 (5): 1362–70. doi:10.1002/art.10235. PMID 12115244.
• Strausberg RL, Feingold EA, Grouse LH, et al. (2003). "Generation and initial analysis of more than 15,000 full-length human and mouse cDNA sequences". Proc. Natl. Acad. Sci. U.S.A. 99 (26): 16899–903. doi:10.1073/pnas.242603899. PMC 139241. PMID 12477932.
• Amann BT, Worthington MT, Berg JM (2003). "A Cys3His zinc-binding domain from Nup475/tristetraprolin: a novel fold with a disklike structure". Biochemistry. 42 (1): 217–21. doi:10.1021/bi026988m. PMID 12515557.
• Yu H, Stasinopoulos S, Leedman P, Medcalf RL (2003). "Inherent instability of plasminogen activator inhibitor type 2 mRNA is regulated by tristetraprolin". J. Biol. Chem. 278 (16): 13912–8. doi:10.1074/jbc.M213027200. PMID 12578825.
• Sawaoka H, Dixon DA, Oates JA, Boutaud O (2003). "Tristetraprolin binds to the 3'-untranslated region of cyclooxygenase-2 mRNA. A polyadenylation variant in a cancer cell line lacks the binding site". J. Biol. Chem. 278 (16): 13928–35. doi:10.1074/jbc.M300016200. PMID 12578839.