kgb-1 encodes a serine/threonine kinase that is a member of the JNK (Jun-N-terminal kinase) subfamily of MAP (mitogen-activated protein)kinases; loss of kgb-1 activity results in temperature-sensitive sterility in hermaphrodites and males; in hermaphrodites, this sterility is associated with disorganized gonads and endomitotic oocytes that have likely failed to undergo oocyte maturation; in kgb-1 mutant males, sperm is present, but is non-functional; KGB-1 interacts in vitro with all four C. elegans germline helicases, GLH-1, -2, -3, and -4, that localize to P granules in vivo; Northern analyses indicate that kgb-1 mRNA is present in both somatic and germline tissues.
Enables DEAD/H-box RNA helicase binding activity; JUN kinase activity; and RNA polymerase II-specific DNA-binding transcription factor binding activity. Involved in several processes, including gamete generation; response to inorganic substance; and response to toxic substance. Located in cytoplasm. Expressed in several structures, including excretory cell; germ line; gonad; nerve ring; and tail ganglion.
Protein interacts with GLH (germ line helicase) proteins. Deletion allele um3, 206 aa removed. Homozygotes fertile at 20C, 40% sterile at 25C, 100% sterile at 26C. Abnormal oogenesis (Emo). Sperm present but males infertile. RNAi some sterility" [CGC_data_submission][030325 ck1]
Map position created from combination of previous interpolated map position (based on known location of sequence) and allele information. Therefore this is not a genetic map position based on recombination frequencies or genetic experiments. This was done on advice of the CGC.