Mikami K, Tabata T, Kawata T, Nakayama T, Iwabuchi M
Department of Biology, Faculty of Science, Hokkaido University, Sapporo, Japan.
FEBS Lett. 1987 Nov 2;223(2):273-8. doi: 10.1016/0014-5793(87)80303-4.
Nuclear protein(s) that specifically bind(s) to the upstream hexamer motif, ACGTCA, of wheat histone H3 and H4 genes has (have) been identified. Sequences homologous to this hexamer are found to be conserved in the upstream region of not only wheat histone genes but also other plant and animal histone genes. This suggests a possible role(s) for the hexamer and the nuclear protein(s) in the transcriptional regulation of the wheat histone genes. This hexamer is homologous to the upstream core sequence, TGACGTCA, which is highly conserved in some animal genes whose expression is regulated by cAMP.
已鉴定出能特异性结合小麦组蛋白H3和H4基因上游六聚体基序ACGTCA的核蛋白。发现与该六聚体同源的序列不仅在小麦组蛋白基因的上游区域保守,在其他植物和动物组蛋白基因的上游区域也保守。这表明该六聚体和核蛋白在小麦组蛋白基因的转录调控中可能发挥作用。该六聚体与上游核心序列TGACGTCA同源,TGACGTCA在一些受cAMP调控表达的动物基因中高度保守。