Abstract:
:The human Rh blood group locus consists of two structurally related genes (D and CcEe) in Rh-positive haplotypes but a single gene (CcEe) in Rh-negative haplotypes. The genome of rhesus monkeys (Macaca mulatta), while not expressing any of the human Rh D, C, c, E, or e specificities, carries a Rh-like locus strongly related to the human Rh locus. Southern blot analysis suggested the presence of only one Rh-like gene with an additional truncated fragment corresponding to the 5' region. RNA preparations from M. mulatta bone marrow cells contained Rh-like species of 1.7 kb. Two allelic Rh-like transcripts were amplified by PCR and sequenced. The predicted translation product of the first transcript was a 417-amino-acid protein closely similar to the human Rh counterpart. The predicted product of the second transcript consisted of a 361-amino-acid polypeptide truncated in the NH2 terminal region and differing from the former by a few substitutions. The macaque Rh-like protein sequences differed from those of human D and Cc/Ee polypeptides by 22-25%, whereas the degree of identity between the human proteins was 91.5%. Implications of these results in the analysis of the evolutionary pathway of the Rh locus are discussed.
journal_name
J Mol Evoljournal_title
Journal of molecular evolutionauthors
Mouro I,Le Van Kim C,Cherif-Zahar B,Salvignol I,Blancher A,Cartron JP,Colin Ydoi
10.1007/BF00166163subject
Has Abstractpub_date
1994-02-01 00:00:00pages
169-76issue
2eissn
0022-2844issn
1432-1432journal_volume
38pub_type
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