Background
This gene product is a 626-amino acid polypeptide that is 96.5% identical to mouse Mekk3. Its catalytic domain is closely related to those of several other kinases, including mouse Mekk2, tobacco NPK, and yeast Ste11. Northern blot analysis revealed a 4.6-kb transcript that appears to be ubiquitously expressed. This protein directly regulates the stress-activated protein kinase (SAPK) and extracellular signal-regulated protein kinase (ERK) pathways by activating SEK and MEK1/2 respectively; it does not regulate the p38 pathway. In cotransfection assays, it enhanced transcription from a nuclear factor kappa-B (NFKB)-dependent reporter gene, consistent with a role in the SAPK pathway. Alternatively spliced transcript variants encoding distinct isoforms have been observed. [provided by RefSeq].
Product Information
Source: HEK293
| Purity: >95% by SDS-PAGE analysis
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Purification Method: FPLC
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Gene/Protein Information
Gene Name: MAP3K3
| Gene Symbol: MAPKKK3, MEKK3
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Gene Name Synonyms: MAPKKK3, MEKK3
| NCBI Acc#: NM_002401
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Chromosomal Location: 17q23.3
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