Genetic variation in the carbonic anhydrase isozymes of macaque monkeys. II. Inheritance of red cell carbonic anhydrase levels in different carbonic anhydrase I genotypes of the pig-tailed macaque,Macaca nemestrina |
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Authors: | Joseph DeSimone Erik Magid Richard E. Tashian |
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Affiliation: | (1) Department of Human Genetics, University of Michigan Medical School, Ann Arbor, Michigan;(2) Present address: Department of Clinical Chemistry, Bispebjerg Hospital, Bispebjerg Bakke 23, 2400 Copenhagen NV, Denmark |
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Abstract: | The inheritance of red blood cell levels of carbonic anhydrase isozymes (CA I and CA II) has been studied in different carbonic anhydrase I genotypes of the pig-tailed macaque, Macaca nemestrina. Quantitation of CA I isozymes in a series of animals indicates that the total CA I concentration is the sum of the average effects of each CA I structural allele and that the average effects are independent of the various allelic combinations. The relative average effects were 0.32:0.95:1.0 for the CA Ia, CA Ib, and CA Ic structural genes, respectively. It is also demonstrated that the level of CA II is related to the CA I genotypes. Multiple regression analysis demonstrated that each dose of CA I-deficiency gene present decreased the CA II concentration by approximately 30%, with this decrease in CA II level being solely related to the dose of CA I-deficiency gene and not to the level of CA I. The CA I-deficient animals produce CA I products that are similar to the common CA Ia, CA Ib, CA Ic electrophoretic types. Limited mating data indicate that the CA I components in CA I-deficient animals are inherited codominantly.Supported by U.S. Public Health Service Research Grant GM-15419.This report is a portion of a dissertation submitted to the University of Michigan in partial fulfillment of the requirements for the Doctor of Philosophy degree.U.S. Public Health Service Predoctoral Trainee (GM-71-14). |
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