Long-range restriction map of a region of human chromosome 19 containing the apolipoprotein genes,a CLL-associated translocation breakpoint,and two polymorphic MluI sites |
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| Authors: | Duncan J. Shaw Helen G. Harley J. David Brook Timothy W. McKeithan |
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| Affiliation: | (1) Molecular Genetics Laboratory, Institute of Medical Genetics, University of Wales College of Medicine, Heath Park, CF4 4XN Cardiff, UK;(2) Department of Pathology, University of Chicago, 60637 Chicago, IL, USA |
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| Abstract: | Summary The apolipoprotein gene cluster on human chromosome 19 (APOC1, APOC2, APOE) has been localised by pulsed-field gel electrophoresis to within 200 kb of a chronic lymphocytic leukemia-associated translocation breakpoint. A restriction map covering 1300 kb around these loci has been constructed and contains two polymorphic MluI sites, which appear to show Mendelian inheritance. The orientation of the map on the chromosome has been established as 19cen CLL breakpoint-APOC2-19qter. Pedigree analysis using APOC2, a probe derived from the CLL breakpoint, and other localised markers on 19q suggests that the myotonic dystrophy locus is distal to APOC2 on 19q. |
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