TRIB2

Last updated

TRIB2
Identifiers
Aliases TRIB2 , C5FW, GS3955, TRB2, tribbles pseudokinase 2
External IDs OMIM: 609462; MGI: 2145021; HomoloGene: 41445; GeneCards: TRIB2; OMA:TRIB2 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_021643

NM_144551

RefSeq (protein)

NP_067675

NP_653134

Location (UCSC) Chr 2: 12.72 – 12.74 Mb Chr 12: 15.84 – 15.87 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

Tribbles homolog 2 is an atypical protein kinase that is encoded in human by the TRIB2 gene. [5] [6] [7] [8] TRIB2 is a pseudokinase member of the (pseudoenzyme) class of signaling/scaffold proteins, possessing very low vestigial catalytic output in vitro and critical scaffolding signaling functions in cells. [9] It is known to signal to canonical MAPK and AKT pathways and to regulate the ubiquitination of substrates with important functions in cell proliferation that control the cell cycle. It has also been associated with various diseases, especially in human and murine blood and solid tumor models. [10] Like TRIB1 and TRIB3, TRIB2 has recently been considered as a potential allosteric drug target, [11] and its three dimensional structure has been solved with the aid of stabilizing nanobodies [12] corroborating the potential for new approaches for drug targeting outside the highly degraded ATP site [13] and is a putative regulator of cancer-associated signalling and survival through AKT pSer473 modulation. [14] Recent work has established a convincing link between targetable overexpression of TRIB2 and prostate cancer drug responses [15]

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000071575 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000020601 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Wu M, Xu LG, Zhai Z, Shu HB (Jul 2003). "SINK is a p65-interacting negative regulator of NF-kappaB-dependent transcription". J Biol Chem. 278 (29): 27072–9. doi: 10.1074/jbc.M209814200 . PMID   12736262.
  6. Keeshan K, He Y, Wouters BJ, Shestova O, Xu L, Sai H, Rodriguez CG, Maillard I, Tobias JW, Valk P, Carroll M, Aster JC, Delwel R, Pear WS (Nov 2006). "Tribbles homolog 2 inactivates C/EBPalpha and causes acute myelogenous leukemia". Cancer Cell. 10 (5): 401–11. doi:10.1016/j.ccr.2006.09.012. PMC   2839500 . PMID   17097562.
  7. Hegedus Z, Czibula A, Kiss-Toth E (Aug 2006). "Tribbles: novel regulators of cell function; evolutionary aspects". Cell Mol Life Sci. 63 (14): 1632–41. doi:10.1007/s00018-006-6007-9. PMC   11136108 . PMID   16715410. S2CID   24556931.
  8. "Entrez Gene: TRIB2 tribbles homolog 2 (Drosophila)".
  9. Bailey FP, et al. (2015). "The Tribbles 2 (TRB2) pseudokinase binds to ATP and autophosphorylate very weakly in a metal-independent manner". Biochemical Society Transactions. 467 (1): 47–62. doi:10.1042/BJ20141441. PMC   4844368 . PMID   25583260.
  10. Eyers PA, Keeshan K, Kannan N (2016). "Tribbles in the 21st Century: The Evolving Roles of Tribbles Pseudokinases in Biology and Disease". Trends in Cell Biology. 27 (9): S0962-8924(16)30178-7. doi:10.1016/j.tcb.2016.11.002. PMC   5382568 . PMID   27908682.
  11. Foulkes DM, Byrne DP, Eyers PA (2015). "Tribbles pseudokinases: novel targets for chemical biology and drug discovery?". Biochemical Society Transactions. 43 (5): 1095–1103. doi:10.1042/BST20150109. PMID   26517930.
  12. Jamieson SA, Pudjihartono M, Horne CR, Viloria JS, Dunlop JL, McMillan HD, Day RC, Keeshan K, Murphy JM, Mace PD (2022). "Nanobodies identify an activated state of the TRIB2 pseudokinase". Structure. 30 (11): 1518–1529. doi:10.1016/j.str.2022.08.006. PMID   36108635.
  13. Byrne DP, Foulkes DM, Eyers PA (2017). "Pseudokinases: update on their functions and evaluation as new drug targets". Future Medicinal Chemistry . 9 (2): 245–265. doi: 10.4155/fmc-2016-0207 . PMID   28097887.
  14. Foulkes DM, Byrne DP, Yeun W, Shrestha S, Bailey FP, Ferries S, Eyers CE, Keeshan K, Wells C, Drewry DH, Zuercher WJ, Kannan N, Eyers PA (2018). "Covalent inhibitors of EGFR family protein kinases induce degradation of human Tribbles 2 (TRIB2) pseudokinase in cancer cells". Science Signaling. 11: 14687. doi:10.1126/scisignal.aat7951. PMC   6553640 . PMID   30254057.
  15. Monga J, Valeriote F, Hwang C, Gadgeel S, Ghosh J (2023). "Daclatasvir, an Antiviral Drug, Downregulates Tribbles 2 Pseudokinase and Resensitizes Enzalutamide-Resistant Prostate Cancer Cells". Molecular Cancer Therapeutics. 22: 381–392. doi:10.1158/1535-7163.mct-21-1002. PMID   36805730.

Further reading