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Somat Cell Mol Genet. 1989 Sep;15(5):471-3.

Gene for alpha 2(I) collagen is on mouse chromosome 6 not 16.

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  • 1Department of Human Genetics, Yale University School of Medicine, New Haven, Connecticut.


Collagen is the most abundant protein in the animal world and a principal component, of the extracellular matrix of tissues. Type I collagen is composed of two alpha 1 chains and one alpha 2 chain. The human alpha 2(I) locus (COL1A2) has been assigned to human chromosome 7q21.3-q22.1. Here, we report the mapping of its murine counterpart Colla-2 to mouse chromosome 6 (MMU6) by Southern blotting using somatic cell hybrids. This result disagrees with the previously reported mapping of Colla-2 to MMU16 by immunochemical techniques. Our results are supported by comparative mapping data showing conserved homology between regions of human chromosome 7 and mouse chromosome 6.

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