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PMID: 12370427 Published · ppublish English Journal Article Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S.

The origin of a developmentally regulated Igh replicon is located near the border of regulatory domains for Igh replication and expression.

Zhou J, Ashouian N, Delepine M, Matsuda F, Chevillard C, Riblet R, Schildkraut CL, Birshtein BK

Abstract

The 3' Ig heavy chain locus (Igh) regulatory region is the most downstream known element of the murine Igh gene cluster. We report here that the nearest non-Igh genes-Crip, Crp2, and Mta1-are located approximately 70 kb further downstream and are beyond the end of the domain of Igh transcriptional regulation. We have localized an origin of replication in MEL cells to a 3-kb segment located between the 3' Igh regulatory region and Crip. Sequences downstream of this origin are replicated by forks that move in both directions. Sequences upstream of this origin (Igh-C, -D, and -J) are replicated in a single direction through a 500-kb segment in which no active bidirectional origins can be detected. We propose that this origin may lie at or near the end of the Igh regulation domain.

MeSH Terms
Animals CCAAT-Enhancer-Binding Protein-beta/genetics Carrier Proteins/genetics Cell Line Chromosomes, Artificial, Bacterial/genetics DNA Replication/genetics Expressed Sequence Tags Gene Expression Regulation Histone Deacetylases Immunoglobulin A/genetics Immunoglobulin Heavy Chains/genetics LIM Domain Proteins Mice Molecular Sequence Data Multigene Family Proteins/genetics Replication Origin Replicon/genetics Repressor Proteins Trans-Activators
Chemicals
CCAAT-Enhancer-Binding Protein-beta CRIP1 protein, human Carrier Proteins Crip1 protein, mouse Immunoglobulin A Immunoglobulin Heavy Chains LIM Domain Proteins Mta1 protein, human Proteins Repressor Proteins Trans-Activators Histone Deacetylases
Authors & Affiliations
8 authors, click to expand affiliations / ORCID
Zhou Jie
Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY 10461, USA.
Ashouian Nasrin
Delepine Marc
Matsuda Fumihiko
Chevillard Christophe
Riblet Roy
Schildkraut Carl L
Birshtein Barbara K
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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
2002-10-15
Epub
2002-00-07
Pages
13693-8
Language
English
Region
United States
NLM ID
7505876
PMCID
PMC129745
Subset
IM
Grants
NIAID NIH HHS · R01 AI023548 · United States
NIAID NIH HHS · AI 23548 · United States
NIGMS NIH HHS · GM 45751 · United States
NIAID NIH HHS · AI 13509 · United States
NIAID NIH HHS · R37 AI013509 · United States
NIAID NIH HHS · R01 AI013509 · United States
NIGMS NIH HHS · R01 GM045751 · United States
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AF450245, AF463504
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