title: Isolation and characterization of cDNA clones encoding a functional p34cdc2 homologue from Zea mays.
abstract: We describe the isolation of cDNA clones encoding a p34cdc2 homologue from a higher plant, Zea mays (maize). A full-length cDNA clone, cdc2ZmA, was isolated, sequenced, and shown to complement a cdc28 mutation in Saccharomyces cerevisiae. Comparison of the deduced amino acid sequence of the maize p34cdc2 protein with other homologues showed that it was 64% identical to human p34cdc2 and 63% identical to Schizosaccharomyces pombe and S. cerevisiae p34cdc2 proteins. Studies of expression of the maize cdc2 gene(s) by Northern blot analysis indicated a correlation between the abundance of cdc2 mRNA and the proliferative state of the tissue. Southern blot analysis, as well as isolation of another cDNA clone, cdc2ZmB, which is 96% identical to cdc2ZmA, indicates that maize has multiple cdc2 genes.
authors.affiliation: Cold Spring Harbor Laboratory, NY 11724.
authors.forename: J
authors.initials: J
authors.lastname: Colasanti
authors.forename: M
authors.initials: M
authors.lastname: Tyers
authors.forename: V
authors.initials: V
authors.lastname: Sundaresan
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D015152:Blotting, Northern; D015139:Blotting, Southern; D016203:CDC2 Protein Kinase / Q000235:genetics*; D002453:Cell Cycle; D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics; D015870:Gene Expression; D005796:Genes; D005816:Genetic Complementation Test; D006801:Humans; D008969:Molecular Sequence Data; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000235:genetics; D012441:Saccharomyces cerevisiae / Q000235:genetics; D012568:Schizosaccharomyces / Q000235:genetics; D003313:Zea mays / Q000235:genetics*
chemical_list: D012333:RNA, Messenger; D004247:DNA; D016203:CDC2 Protein Kinase