Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2007-8-3
pubmed:abstractText
c-Jun NH2-terminal protein kinase (JNK) is a mitogen-activated protein kinase (MAPK) involved in the regulation of numerous physiological processes during development and in response to stress. Its activity is increased upon phosphorylation by the MAPK kinases, MKK4 and MKK7. Similar to the early embryonic death of mice caused by the targeted deletion of the jnk genes, mice lacking mkk4 or mkk7 die before birth. The inability of MKK4 and MKK7 to compensate for each other's functions in vivo is consistent with their synergistic effect in mediating JNK activation. However, the phenotypic analysis of the mutant mouse embryos indicates that MKK4 and MKK7 have specific roles that may be due to their selective regulation by extracellular stimuli and their distinct tissue distribution. MKK4 and MKK7 also have different biochemical properties. For example, whereas MKK4 can activate p38 MAPK, MKK7 functions as a specific activator of JNK. Here we summarize the studies that have shed light on the mechanism of activation of MKK4 and MKK7 and on their physiological functions.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-3002
pubmed:author
pubmed:issnType
Print
pubmed:volume
1773
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1349-57
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed:year
2007
pubmed:articleTitle
Physiological roles of MKK4 and MKK7: insights from animal models.
pubmed:affiliation
Faculty of Life Sciences, University of Manchester, Michael Smith Building, Oxford Road, Manchester M13 9PT, UK.
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't