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Amino acid differences between major and minor hemoglobins from lemmings (Lemmus and Dicrostonyx)
L K Duffy1, C T Genaux, P R Morrison
1Institute of Arctic Biology, University of Alaska, Fairbanks 99701.
Abstract:
1. Dual hemoglobins were isolated from both Lemmus and Discrostonyx, two genera of microtine rodents of the tribe Lemmini. 2. The dual hemoglobins result from dual alpha-chains and the charge difference Asp----Ala at position alpha 5. 3. The beta-chains of Dicrostonyx and Lemmus hemoglobins differ in charge by Ala----Asp at beta 125. 4. Cladograms are presented for the hemoglobin chains of microtine rodents.