Protein
Serine/threonine-protein kinase chk-1
Organism
Caenorhabditis elegans
Function
Serine/threonine-protein kinase which is required for checkpoint-mediated cell cycle arrest and activation of DNA repair in response to the presence of DNA damage or unreplicated DNA (PubMed:15326393). May also negatively regulate cell cycle progression during unperturbed cell cycles (PubMed:15326393). Required for checkpoint mediated cell cycle arrest in response to DNA damage in germline cells (PubMed:15326393, PubMed:27956467). Delays cell-cycle reentry of the Z2 and Z3 primordial germ cells in response to transcription-induced DNA damage as they emerge from cell cycle arrest in L1 larvae (PubMed:26073019). Essential for embryogenesis (PubMed:15326393).
Similarity
Belongs to the protein kinase superfamily. CAMK Ser/Thr protein kinase family. NIM1 subfamily.
Sequence
MSAASTTSTPAAAAVAPQQPESLYRVVQTLGEGAFGEVLLIVNTKNPEVAAAMKKINIANKSKDFIDNIRKEYLLQKRVSAVGHDNVIRMIGMRNDPQFYYLFLEYADGGELFDKIEPDCGMSPVFAQFYFKQLICGLKFIHDNDVVHRDIKPENLLLTGTHVLKISDFGMATLYRNKGEERLLDLSCGTIPYAAPELCAGKKYRGPPVDVWSSGIVLIAMLTGELPWDRASDASQSYMGWISNTSLDERPWKKIDVRALCMLRKIVTDKTDKRATIEQIQADPWYQHNFGQVETPNGRPLKRARNNDENITCTQQAECSAKRRHLETPNEKSTLAERQNASFSQPTKTEDLLLTQHIDMSQTNSNLLQRMVCRMTRFCVVTDIRSTYQKVARASEHAGFGVRETDDYRLLVTWREVSMMVSLYTMGDIPDKPRVMVDFRRSRGDGIQFKKMFMDVRNRMHEWICTDGNNWLANLGYVPRNPQIVNGGGVNVEHSASSINVDV