DUSP1

DUSP1

DUSP1

Protein-coding gene in the species Homo sapiens


Dual specificity protein phosphatase 1 is an enzyme that in humans is encoded by the DUSP1 gene.[5][6]

Quick Facts Identifiers, Aliases ...

Function

The expression of DUSP1 gene is induced in human skin fibroblasts by oxidative/heat stress and growth factors. It specifies a protein with structural features similar to members of the non-receptor-type protein-tyrosine phosphatase family, and which has significant amino-acid sequence similarity to a Tyr/Ser-protein phosphatase encoded by the late gene H1 of vaccinia virus. The bacterially expressed and purified DUSP1 protein has intrinsic phosphatase activity, and specifically inactivates mitogen-activated protein (MAP) kinase in vitro by the concomitant dephosphorylation of both its phosphothreonine and phosphotyrosine residues. Furthermore, it suppresses the activation of MAP kinase by oncogenic ras in extracts of Xenopus oocytes. Thus, DUSP1 may play an important role in the human cellular response to environmental stress as well as in the negative regulation of cellular proliferation.[7]

Interactions

DUSP1 has been shown to interact with MAPK14,[8][9] MAPK1[9][10] and MAPK8.[9]


References

  1. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  2. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. Keyse SM, Emslie EA (Oct 1992). "Oxidative stress and heat shock induce a human gene encoding a protein-tyrosine phosphatase". Nature. 359 (6396): 644–7. Bibcode:1992Natur.359..644K. doi:10.1038/359644a0. PMID 1406996. S2CID 4307895.
  4. Martell KJ, Kwak S, Hakes DJ, Dixon JE, Trent JM (Jul 1994). "Chromosomal localization of four human VH1-like protein-tyrosine phosphatases" (PDF). Genomics. 22 (2): 462–4. doi:10.1006/geno.1994.1411. hdl:2027.42/31442. PMID 7806236.
  5. Tanoue T, Yamamoto T, Maeda R, Nishida E (Jul 2001). "A Novel MAPK phosphatase MKP-7 acts preferentially on JNK/SAPK and p38 alpha and beta MAPKs". The Journal of Biological Chemistry. 276 (28): 26629–39. doi:10.1074/jbc.M101981200. PMID 11359773.
  6. Calvisi DF, Pinna F, Meloni F, Ladu S, Pellegrino R, Sini M, Daino L, Simile MM, De Miglio MR, Virdis P, Frau M, Tomasi ML, Seddaiu MA, Muroni MR, Feo F, Pascale RM (Jun 2008). "Dual-specificity phosphatase 1 ubiquitination in extracellular signal-regulated kinase-mediated control of growth in human hepatocellular carcinoma". Cancer Research. 68 (11): 4192–200. doi:10.1158/0008-5472.CAN-07-6157. PMID 18519678.

Further reading



Share this article:

This article uses material from the Wikipedia article DUSP1, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.