Document Detail


Fluorescence in situ hybridization establishes the order cen-DXS28(C7)-DXS67(B24)-DXS68(L1)-tel in human chromosome Xp21.3.
MedLine Citation:
PMID:  1612605     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We report here on the order of three DNA markers, C7, B24, and L1, based on the arrangement of their fluorescently labeled hybridization sites in interphase cell nuclei. The three markers map distal to the Duchenne muscular dystrophy (DMD), glycerol kinase deficiency (GKD), and adrenal hypoplasia (AHC) loci on human chromosome Xp21.3. Their order has been a matter of controversy. In interphase chromatin, B24 maps between C7 and L1. We estimate from interphase distance that C7 and L1 are 300-500 kb apart. When the three markers are hybridized to interphase cells of Nijmegen1, a patient with DMD, GKD, and AHC, only C7 appears to be deleted, rather than both C7 and L1, as had been reported elsewhere. C7 is also the only one of the three markers deleted in several other DMD patients studied by others. The deletion results indicate that C7 is the most proximal of the three markers and allow the trio of ordered probes to be oriented on the chromosome: cen-C7(DXS28)-B24(DXS67)-L1(DXS68)-tel.
Authors:
B J Trask; H F Massa; M Burmeister
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Genomics     Volume:  13     ISSN:  0888-7543     ISO Abbreviation:  Genomics     Publication Date:  1992 Jun 
Date Detail:
Created Date:  1992-07-30     Completed Date:  1992-07-30     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8800135     Medline TA:  Genomics     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  455-7     Citation Subset:  IM    
Affiliation:
Human Genome Center, Lawrence Livermore National Laboratory, Livermore, California 94550.
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MeSH Terms
Descriptor/Qualifier:
DNA Probes
Fluorescent Dyes
Genetic Markers
Humans
Interphase
Male
Nucleic Acid Hybridization*
X Chromosome*
Grant Support
ID/Acronym/Agency:
R01 HG-00256-01/HG/NHGRI NIH HHS
Chemical
Reg. No./Substance:
0/DNA Probes; 0/Fluorescent Dyes; 0/Genetic Markers

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


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