A novel mammalian protein kinase gene (mak) is highly expressed in testicular germ cells at and after meiosis - PubMed (original) (raw)

A novel mammalian protein kinase gene (mak) is highly expressed in testicular germ cells at and after meiosis

H Matsushime et al. Mol Cell Biol. 1990 May.

Abstract

We isolated a novel gene designated mak (male germ cell-associated kinase) by using weak cross-hybridization with a tyrosine kinase gene (v-ros). Sequence analysis of the cDNA corresponding to the 2.6-kilobase transcript revealed that the predicted product of rat mak consisted of 622 amino acids and contained protein kinase consensus motifs in its amino-terminal region. Comparison of the deduced amino acid sequence of mak in the kinase domain with those of other protein kinase genes demonstrated that mak was approximately 40% identical to the cdc2-CDC28 gene family in Schizosaccharomyces pombe, Saccharomyces cerevisiae, and humans but less identical to most other protein kinase gene products. Expression of mak was highly tissue specific, and its transcripts were detected almost exclusively in testicular cells entering and after meiosis but hardly detectable in ovarian cells including oocytes, after the dictyotene stage. These results suggest that the mak gene plays an important role in spermatogenesis.

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New nucleotide sequence data on the EMBL File Server.
[No authors listed] [No authors listed] Nucleic Acids Res. 1990 Sep 25;18(18):5587-605. doi: 10.1093/nar/18.18.5587. Nucleic Acids Res. 1990. PMID: 2216753 Free PMC article. No abstract available.
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A novel mammalian protein kinase gene (mak) is highly expressed in testicular germ cells at and after meiosis - PubMed (original) (raw)