MAP2K5

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Template:Infobox gene Dual specificity mitogen-activated protein kinase kinase 5 is an enzyme that in humans is encoded by the MAP2K5 gene.[1][2]

Function

The protein encoded by this gene is a dual specificity protein kinase that belongs to the MAP kinase kinase family. This kinase specifically interacts with and activates MAPK7/ERK5. This kinase itself can be phosphorylated and activated by MAP3K3/MEKK3, as well as by atypical protein kinase C isoforms (aPKCs). The signal cascade mediated by this kinase is involved in growth factor stimulated cell proliferation and muscle cell differentiation. Four alternatively spliced transcript variants of this gene encoding distinct isoforms have been described.[2]

Upstream

This kinase itself can be phosphorylated and activated by MAP3K3/MEKK3, as well as by atypical protein kinase C isoforms (aPKCs).

Downstream

This kinase specifically interacts with and activates MAPK7/ERK5.

Interactions

MAP2K5 has been shown to interact with MAPK7,[1] MAP3K2,[3] Protein kinase Mζ[4] and MAP3K3.[3][5]

References

  1. 1.0 1.1 Zhou G, Bao ZQ, Dixon JE (May 1995). "Components of a new human protein kinase signal transduction pathway". The Journal of Biological Chemistry. 270 (21): 12665–9. PMID 7759517. doi:10.1074/jbc.270.21.12665. 
  2. 2.0 2.1 "Entrez Gene: MAP2K5 mitogen-activated protein kinase kinase 5". 
  3. 3.0 3.1 Sun W, Kesavan K, Schaefer BC, Garrington TP, Ware M, Johnson NL, Gelfand EW, Johnson GL (Feb 2001). "MEKK2 associates with the adapter protein Lad/RIBP and regulates the MEK5-BMK1/ERK5 pathway". The Journal of Biological Chemistry. 276 (7): 5093–100. PMID 11073940. doi:10.1074/jbc.M003719200. 
  4. Diaz-Meco MT, Moscat J (Feb 2001). "MEK5, a new target of the atypical protein kinase C isoforms in mitogenic signaling". Molecular and Cellular Biology. 21 (4): 1218–27. PMC 99575Freely accessible. PMID 11158308. doi:10.1128/MCB.21.4.1218-1227.2001. 
  5. Bouwmeester T, Bauch A, Ruffner H, Angrand PO, Bergamini G, Croughton K, Cruciat C, Eberhard D, Gagneur J, Ghidelli S, Hopf C, Huhse B, Mangano R, Michon AM, Schirle M, Schlegl J, Schwab M, Stein MA, Bauer A, Casari G, Drewes G, Gavin AC, Jackson DB, Joberty G, Neubauer G, Rick J, Kuster B, Superti-Furga G (Feb 2004). "A physical and functional map of the human TNF-alpha/NF-kappa B signal transduction pathway". Nature Cell Biology. 6 (2): 97–105. PMID 14743216. doi:10.1038/ncb1086. 

Further reading

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