Genomic structure and expression of the murine Hmgi-c gene

被引:59
作者
Zhou, XJ [1 ]
Benson, KF [1 ]
Przybysz, K [1 ]
Liu, J [1 ]
Hou, Y [1 ]
Cherath, L [1 ]
Chada, K [1 ]
机构
[1] UNIV MED & DENT NEW JERSEY,ROBERT WOOD JOHNSON MED SCH,DEPT BIOCHEM,PISCATAWAY,NJ 08854
关键词
D O I
10.1093/nar/24.20.4071
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
The murine Hmgi-c gene, a member of the Hmgi gene family, contains five exons encompassing >110 kb of genomic DNA at the pygmy locus on mouse chromosome 10, Northern analysis identified a 4.1 kb transcript which contains a 324 bp open reading frame encoding a 12 kDa HMGI-C protein. Further analysis defined both the 5' and 3' untranslated regions of the Hmgi-c mRNA species as 658 and 2967 bp respectively, The HMGI-C protein has three consecutive AT hook DNA binding domains and an acidic domain, each of which are encoded by individual exons; such an organization is conserved among the HMGI gene family members from insects to mammals, Similar to the HMGI/Y proteins, the HMGI-C protein does not function as a typical transcriptional activator, Developmental studies revealed that the Hmgi-c gene is expressed predominantly during mouse embryogenesis, Since the human homolog is disrupted in a number of tumors, HMGI-C could play an important role in cell proliferation and differentiation during mammalian development.
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页码:4071 / 4077
页数:7
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