ZAK is a member of the MAPKKK family of signal transduction molecules and encodes a protein with an N-terminal kinase catalytic domain, followed by a leucine zipper motif and a sterile-alpha motif (SAM). This magnesium-binding protein forms homodimers and is located in the cytoplasm. The protein mediates gamma radiation signaling leading to cell cycle arrest and activity of this protein plays a role in cell cycle checkpoint regulation in cells. The protein also has pro-apoptotic activity. Alternate transcriptional splice variants, encoding different isoforms, have been characterized. [provided by RefSeq]
AZK , EC 2.7.11 , EC 2.7.11.25 , HCCS-4 , Human cervical cancer suppressor gene 4 protein sl, Leucine zipper- and sterile alpha motif-containing, mitogen-activated protein kinase kinase kinase MLT, mixed lineage kinase 7 , mixed lineage kinase with a leucine zipper and a s, mixed lineage kinase-related kinase MRK-beta , Mixed lineage kinase-related kinase , MLK-like mitogen-activated protein triple kinase s, MLK-related kinase , MLK7 , mlklak , MLT , MLTK , MRKcervical cancer suppressor gene 4 protein , pk , protein kinase , sterile alpha motif and leucine zipper containing , Sterile alpha motif- and leucine zipper-containing