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PMID: 2878432 Published · ppublish English Comparative Study Journal Article Research Support, U.S. Gov't, P.H.S.

Cognate homeo-box loci mapped on homologous human and mouse chromosomes.

Rabin M, Ferguson-Smith A, Hart CP, Ruddle FH

Abstract

The homeotic genes of Drosophila, which regulate pattern formation during larval development, contain a 180-base-pair DNA sequence termed the "homeo-box." Nucleotide sequence comparisons indicate that the homeo-box motif is highly conserved in a variety of motazoan species. As in Drosophila, homeo-box sequences of mammalian species are expressed in a temporal and tissue-specific pattern during embryogenesis. These observations suggest functional homologies between dipteran and mammalian homeo-box gene products. To identify possible relationships between homeo-box genes of mice and humans, we have compared the chromosomal location of homeo-box genes in these species. Using in situ hybridization and somatic cell genetic techniques, we have mapped the chromosome 6-specific murine Hox-1 homolog to the region p14-p21 on human chromosome 7. We have also regionally mapped the murine Hox-3 locus to 15F1-3 and its human cognate to 12q11-q21. These comparative mapping data indicate that a syntenic relationship in mice and humans is maintained for all homeo-box loci examined to date. We suggest these regions represent evolutionarily conserved genomic domains encoding homologous protein products that function in regulating patterns of mammalian development.

MeSH Terms
Animals Biological Evolution Chromosome Mapping Chromosomes, Human, Pair 12 Chromosomes, Human, Pair 7 Genes, Homeobox Humans Mice Multigene Family
Authors & Affiliations
4 authors, click to expand affiliations / ORCID
Rabin M
Ferguson-Smith A
Hart C P
Ruddle F H
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48 references, click to expand
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Article Info
Journal
Proceedings of the National Academy of Sciences of the United States of America
Abbr.
Proc Natl Acad Sci U S A
ISSN
0027-8424
Published
1986-12-00
Pages
9104-8
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC387083
Subset
IM
Grants
NIGMS NIH HHS · GM09966 · United States
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