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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Physical mapping by PFGE localizes the COL3A1 and COL5A2 genes to a 35-kb region on human chromosome 2.

The genes encoding the alpha 1 chain of Type III collagen (COL3A1) and the alpha 2 chain of Type V (COL5A2) collagen have been mapped to the long arm of human chromosome 2. Linkage analysis in CEPH families indicated that these two genes are close to each other, with no recombination in 37 informative meioses. In the present study, DNA probes from the 3' ends of each gene have been physically mapped by pulsed-field gel electrophoresis. The probes recognized 11 macrorestriction fragments in common, ranging from greater than 1000 kb MluI and NotI fragments to a 35-kb SfiI fragment. Therefore, the COL3A1 and COL5A2 genes appear to exist as a gene cluster on chromosome 2. This is the third example of a collagen gene cluster. Other examples include the COL4A1-COL4A2 genes on chromosome 13q and the COL6A1-COL6A2 genes on chromosome 21q. The physical proximity of these genes may indicate common evolution and/or regulation.[1]

References

  1. Physical mapping by PFGE localizes the COL3A1 and COL5A2 genes to a 35-kb region on human chromosome 2. Cutting, G.R., McGinniss, M.J., Kasch, L.M., Tsipouras, P., Antonarakis, S.E. Genomics (1990) [Pubmed]
 
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