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Title 

Sequence and functional analysis of an upstream regulatory region of human HOXA7 gene

Authors 

Won Gi MinMyung Sun ChoSeung Ik JangHwa Hyoung ChangChul Sang LeeMoo Hyung JunMyoung Hee Kim

Publisher 

Elsevier

Issue Date 

1996

Citation 

Gene, vol. 182, no. 0, pp. 1-6

Keywords 

β-gal fusiontransgenic mouseregulatory elementanterior boundary of expressiondevelopment

Abstract 

The Hox genes have been known to be involved in pattern formation during vertebrate development through differential expression along the anteroposterior body axis. Human homologue of position-specific regulatory region of murine Hoxa-7 was cloned from human genomic library. The restriction map of the 18-kb insert was determined, of which a 3.9-kb region was sequenced. Homology plot between the murine and the corresponding human sequence showed high sequence conservation over 70% in several regions, The homologous region has been reduced to about 1.1 kb (HCR: human control region), which contained several putative factor binding sites. The function of HCR was analyzed in transgenic mice and turned out to be a position-specific regulatory element of human, setting the precise anterior boundary of expression in transgenic embryos; at day 12.5 post-coitum a distinct anterior limit of expression was noted at the level of C5 in neural tube and spinal ganglia in transgenic embryos. These results indicate that the regulatory sequences as well as the molecular mechanism for Hox gene expression are highly conserved among vertebrates.

ISSN 

0378-1119

Appears in Collections

1. Journal Articles > Journal Articles

Registered Date

2017-04-19


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