Chromosomal locations of the human and mouse genes for precursors of epidermal growth factor and the beta subunit of nerve growth factor.

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Abstract
DNA probes for pre-pro-epidermal growth factor (EGF) and the precursor of the beta subunit of nerve growth factor (NGF) were used to chromosomally map human and mouse EGF and NGF genes in panels of human-mouse and mouse-Chinese hamster somatic cell hybrids. The EGF and NGF genes were mapped to human chromosomes 4 and 1, respectively, by using human-mouse cell hybrids. A combination of regional mapping using a chromosome 1 translocation and comparative gene mapping suggests that the human NGF gene is in the p21-p22.1 region of chromosome 1. In mouse-Chinese hamster cell hybrids, both genes were assigned to mouse chromosome 3. A knowledge of the chromosomal assignment of these genes should help in our understanding of their regulation and role in development and disease.