Sequence analysis of the cDNA for the human casein kinase I delta (CSNK1D) gene and its chromosomal localization.
A cDNA clone coding for human casein kinase I (CK1) has been isolated and sequenced. The insert of 1911 bp contained an open reading frame of 415 amino acids. The entire amino acid sequence of human CK1 was 97% homologous to that of rat CK1 delta, and their sequences in the kinase domain (284 amino acid residues) were completely identical, predicting that the obtained cDNA is for a human homolog of the CK1 delta isoform (CSNKID). The considerable similarity in the amino acid sequence of the kinase domain of human CK1 delta to the Saccharomyces cerevisiae CK1, HRR25 (66%), and to the Saccharomyces pombe CK1, HHP1 (78%), which are involved in the repair of DNA strand break, supports the speculation that human CK1 delta might also act in DNA metabolism through excision and recombinational repair. The human CK1 delta gene was mapped to chromosome 17q25.2-q25.3 by fluorescence in situ hybridization and polymerase chain reaction analysis of the human/rodent hybrid cell panels.[1]References
- Sequence analysis of the cDNA for the human casein kinase I delta (CSNK1D) gene and its chromosomal localization. Kusuda, J., Hidari, N., Hirai, M., Hashimoto, K. Genomics (1996) [Pubmed]
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