Document Detail


Mapping of two genes encoding members of a distinct subfamily of MAX interacting proteins: MAD to human chromosome 2 and mouse chromosome 6, and MXI1 to human chromosome 10 and mouse chromosome 19.
MedLine Citation:
PMID:  8290278     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Both the MAD and the MXI1 genes encode basic-helix-loop-helix-leucine zipper (bHLH-Zip) transcription factors which bind Max in vitro, forming a sequence-specific DNA-binding complex similar to the Myc-Max heterodimer. Mad and Myc compete for binding to Max. In addition, Mad has been shown to act as a transcriptional repressor while Myc appears to function as an activator. Mxi1 also appears to lack a transcriptional activation domain. Therefore, Mxi1 and Mad might antagonize Myc function and are candidate tumor suppressor genes. We report here the mapping of the MAD and MXI1 genes in human and mouse by fluorescence in situ hybridization (FISH) and by recombination mapping. The MAD gene was mapped to human chromosome 2 at band p13 by FISH and to mouse chromosome 6 by meiotic mapping. The MXI1 gene was mapped to human chromosome 10 at band q25 and on mouse chromosome 19 at region D by FISH. There was a second site of hybridization on mouse chromosome 2 at region C, which may represent a pseudogene or a related sequence. The mapping results confirm regions of conservation between human chromosome 2p13 and mouse chromosome 6 and between chromosome 10q25 and mouse chromosome 19D. Human chromosomes 2p13 and 10q25 have been involved in specific tumors where the role of Mad and Mxi1 can now be investigated.
Authors:
S Edelhoff; D E Ayer; A S Zervos; E Steingrímsson; N A Jenkins; N G Copeland; R N Eisenman; R Brent; C M Disteche
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Oncogene     Volume:  9     ISSN:  0950-9232     ISO Abbreviation:  Oncogene     Publication Date:  1994 Feb 
Date Detail:
Created Date:  1994-02-24     Completed Date:  1994-02-24     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8711562     Medline TA:  Oncogene     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  665-8     Citation Subset:  IM    
Affiliation:
Department of Pathology, University of Washington, Seattle 98195.
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MeSH Terms
Descriptor/Qualifier:
Animals
Basic Helix-Loop-Helix Leucine Zipper Transcription Factors
Basic-Leucine Zipper Transcription Factors
Chromosome Mapping*
Chromosomes, Human, Pair 10*
Chromosomes, Human, Pair 2*
DNA / genetics
DNA-Binding Proteins / genetics*,  physiology
Gene Expression Regulation / genetics
Genes, Regulator*
Genes, Tumor Suppressor*
Humans
In Situ Hybridization, Fluorescence
Leucine Zippers
Mice
Transcription Factors / genetics*,  physiology
Grant Support
ID/Acronym/Agency:
N01-CO-74101/CO/NCI NIH HHS
Chemical
Reg. No./Substance:
0/Basic Helix-Loop-Helix Leucine Zipper Transcription Factors; 0/Basic-Leucine Zipper Transcription Factors; 0/DNA-Binding Proteins; 0/MAX protein, human; 0/Myc associated factor X; 0/Transcription Factors; 137468-70-3/Max protein, mouse; 9007-49-2/DNA

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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