Abstract
Cloned genomic DNA sequences corresponding to various regions of the human type II procollagen gene were used to analyze the DNA from 78 normal volunteers. Southern hybridization experiments detected polymorphic HindIII, BamHI, and EcoRI sites. The presence of the polymorphic HindIII site results in a 7.0-kilobase (kb) band, and the absence of this site results in a 14.0-kb band. When present, the BamH1 polymorphic site yields a 4.8-kb band, and when absent, yields a 7.2-kb band. The presence of the EcoRI polymorphic site results in a 3.7-kb band, and its absence results in a 7.0-kb band. Each polymorphic site was mapped. Analyses of the data demonstrated that the sites are present in overall gene frequencies of .39 for HindIII, .04 for BamHI, and .02 for EcoRI. Gene frequencies of the polymorphic sites were also studied with respect to race. The polymorphic sites are present in a Hardy-Weinberg distribution in the study population. Study of an extended family demonstrated that the segregation of the HindIII polymorphic site is consistent with Mendelian inheritance.
MeSH Terms
Deoxyribonuclease BamHI/metabolism
Deoxyribonuclease EcoRI/metabolism
Deoxyribonuclease HindIII/metabolism
Gene Frequency
Humans
Polymorphism, Restriction Fragment Length
Procollagen/genetics
Restriction Mapping
Whites
Chemicals
Procollagen
Deoxyribonuclease BamHI
Deoxyribonuclease EcoRI
Deoxyribonuclease HindIII
Authors & Affiliations
2 authors, click to expand affiliations / ORCID
Eng C E
Department of Pediatrics, Joseph P. Kennedy, Jr. Mental Retardation Research Center, Chicago, IL, USA.
Strom C M
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