MAP4K2

Mitogen-activated protein kinase kinase kinase kinase 2
Identifiers
Symbols MAP4K2; BL44; GCK; RAB8IP
External IDs OMIM603166 MGI1346883 HomoloGene3370 GeneCards: MAP4K2 Gene
EC number 2.7.11.1
RNA expression pattern
More reference expression data
Orthologs
Species Human Mouse
Entrez 5871 26412
Ensembl ENSG00000168067 ENSMUSG00000024948
UniProt Q12851 Q14B82
RefSeq (mRNA) NM_004579 NM_009006.2
RefSeq (protein) NP_004570 NP_033032.1
Location (UCSC) Chr 11:
64.56 – 64.57 Mb
Chr 19:
6.34 – 6.36 Mb
PubMed search [1] [2]

Mitogen-activated protein kinase kinase kinase kinase 2 is an enzyme that in humans is encoded by the MAP4K2 gene.[1][2]

The protein encoded by this gene is a member of the serine/threonine protein kinase family. Although this kinase is found in many tissues, its expression in lymphoid follicles is restricted to the cells of germinal centre, where it may participate in B-cell differentiation. This kinase can be activated by TNF-alpha, and has been shown to specifically activate MAP kinases. This kinase is also found to interact with TNF receptor-associated factor 2 (TRAF2), which is involved in the activation of MAP3K1/MEKK1.[2]

Interactions

MAP4K2 has been shown to interact with RAB8A[3] and TRAF2.[4]

References

  1. ^ Katz P, Whalen G, Kehrl JH (Jul 1994). "Differential expression of a novel protein kinase in human B lymphocytes. Preferential localization in the germinal center". J Biol Chem 269 (24): 16802–9. PMID 7515885. 
  2. ^ a b "Entrez Gene: MAP4K2 mitogen-activated protein kinase kinase kinase kinase 2". http://www.ncbi.nlm.nih.gov/sites/entrez?Db=gene&Cmd=ShowDetailView&TermToSearch=5871. 
  3. ^ Ren, M; Zeng J, De Lemos-Chiarandini C, Rosenfeld M, Adesnik M, Sabatini D D (May. 1996). "In its active form, the GTP-binding protein rab8 interacts with a stress-activated protein kinase". Proc. Natl. Acad. Sci. U.S.A. (UNITED STATES) 93 (10): 5151–5. doi:10.1073/pnas.93.10.5151. ISSN 0027-8424. PMC 39423. PMID 8643544. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=39423. 
  4. ^ Yuasa, T; Ohno S, Kehrl J H, Kyriakis J M (Aug. 1998). "Tumor necrosis factor signaling to stress-activated protein kinase (SAPK)/Jun NH2-terminal kinase (JNK) and p38. Germinal center kinase couples TRAF2 to mitogen-activated protein kinase/ERK kinase kinase 1 and SAPK while receptor interacting protein associates with a mitogen-activated protein kinase kinase kinase upstream of MKK6 and p38". J. Biol. Chem. (UNITED STATES) 273 (35): 22681–92. doi:10.1074/jbc.273.35.22681. ISSN 0021-9258. PMID 9712898. 

Further reading