ZFP36

ZFP36 ring finger protein

PDB rendering based on 1m9o.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
Symbols ZFP36 ; G0S24; GOS24; NUP475; RNF162A; TIS11; TTP; zfp-36
External IDs OMIM: 190700 MGI: 99180 HomoloGene: 2558 GeneCards: ZFP36 Gene
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 7538 22695
Ensembl ENSG00000128016 ENSMUSG00000044786
UniProt P26651 P22893
RefSeq (mRNA) NM_003407 NM_011756
RefSeq (protein) NP_003398 NP_035886
Location (UCSC) Chr 19:
39.41 – 39.41 Mb
Chr 7:
28.38 – 28.38 Mb
PubMed search

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.[1][2] It is a member of the TIS11 (TPA-induced sequence) family, along with butyrate response factors 1 and 2.[3]

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.[4] Mice deficient in TTP develop a complex syndrome of inflammatory diseases.[4]

Interactions

ZFP36 has been shown to interact with 14-3-3 protein family members, such as YWHAH,[5] and with NUP214, a member of the nuclear pore complex.[6]

Regulation

Post-transcriptionally, TTP is regulated in several ways.[3] 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.[3] There is some evidence that the TTP transcript may also be targeted by microRNAs, such as miR-29a.[3]

References

  1. DuBois RN, McLane MW, Ryder K, Lau LF, Nathans D (Dec 1990). "A growth factor-inducible nuclear protein with a novel cysteine/histidine repetitive sequence". J Biol Chem 265 (31): 19185–91. PMID 1699942.
  2. "Entrez Gene: ZFP36 zinc finger protein 36, C3H type, homolog (mouse)".
  3. 1 2 3 4 Sanduja S, Blanco FF, Dixon DA (2011). "The roles of TTP and BRF proteins in regulated mRNA decay". Wiley Interdiscip Rev RNA 2 (1): 42–57. doi:10.1002/wrna.28. PMC 3030256. PMID 21278925.
  4. 1 2 Carballo E, Lai WS, Blackshear PJ (August 1998). "Feedback inhibition of macrophage tumor necrosis factor-alpha production by tristetraprolin". Science 281 (5379): 1001–5. doi:10.1126/science.281.5379.1001. PMID 9703499.
  5. Johnson BA, Stehn JR, Yaffe MB, Blackwell TK (May 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.
  6. Carman JA, Nadler SG (March 2004). "Direct association of tristetraprolin with the nucleoporin CAN/Nup214". Biochem. Biophys. Res. Commun. 315 (2): 445–9. doi:10.1016/j.bbrc.2004.01.080. PMID 14766228.

Further reading

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