Cloning and characterization of the chick Oct binding factor OBF-1.
[No authors listed]
摘要
We have cloned the chicken homolog of OBF-1, chOBF-1, which comprises 256 amino acids, and exhibits only 65% overall identity to the human and mouse OBF-1 proteins. Amino acid sequence alignment revealed the putative Oct-binding sequence, RPYQGVRVKEPVKELL(K/R)RKRG, which is conserved among chicken, mouse and human. chOBF-1 protein was demonstrated to bind chicken Oct-1 protein by the in vitro immunoprecipitation experiment, and chOBF-1 was shown to functionally activate the chicken immunoglobulin (Ig) light chain promoter in the NIH 3T3 cell. Taken together, these data indicate that the Ig gene transcription machinery, including Oct-1 and OBF-1, has been highly conserved in vertebrate evolution.
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基因功能
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原始数据
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文献解读
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