Evolution of the HOXR6 intergenic region: Motif conservation at the Lateral Plate Mesoderm (LPM) enhancer element

Amos S Deinard, Robert Dorit, Carmela Castiglione, Zhiling Jiang, Diko Becker, Frank Ruddle, Klaus Schugart, Kenneth Kidd

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

This study reports the results of a comparative sequencing study in higher primates, focusing on the intergenic region located between HOXB6 and HOXB7. We have examined an 832 bp. region, encompassing a putative Lateral Plate Mesoderm (LPM) enhancer element in a variety of anthropoid apes. The interspecific comparisons reveal extensive substitutions occurring within this region, with a marked bias in favor of C→T transitions within the enhancer element. The pattern of these substitutions suggests that the LPM enhancer region is subject to specific sequence and compositional constraints that are only revealed through comparative sequencing. These constraints produce an enhancer signature, the CpG microisland, which may be useful in identifying additional regulatory elements located within the HOX complexes.

Original languageEnglish (US)
Pages (from-to)170-176
Number of pages7
JournalJournal of Experimental Zoology
Volume285
Issue number2
DOIs
StatePublished - Aug 15 1999

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