Abstract:
:Duffy blood group antigens are carried on a glycoprotein that is predicted to pass through the erythrocyte membrane seven times and is a promiscuous chemokine receptor. The Fy(a- b-) phenotype is present in two-thirds of African-American Blacks but is rare in Caucasians. In Blacks, the phenotype is due to a non-functional GATA-1 motif in the FY B, which silences the gene in erythrocytes but not in other tissues, and these patients do not generally make anti-Fyb or anti-Fy3. We describe here the molecular analysis of FY in three unrelated Caucasians who were studied because they had strong anti-Fy3 in their serum. Each was found to have a point mutation that was predicted to change a tryptophan to a premature stop codon in the coding sequence. In one patient (patient 1), the nonsense mutation was at nucleotide 287 of the major transcript in FY A; in another (patient 2), it was at nucleotide 407 in the major transcript of FY B; and in a third (patient 3), it was at nucleotide 408 of the major transcript of FY A.
journal_name
Br J Haematoljournal_title
British journal of haematologyauthors
Rios M,Chaudhuri A,Mallinson G,Sausais L,Gomensoro-Garcia AE,Hannon J,Rosenberger S,Poole J,Burgess G,Pogo O,Reid Mdoi
10.1046/j.1365-2141.2000.01882.xsubject
Has Abstractpub_date
2000-02-01 00:00:00pages
448-54issue
2eissn
0007-1048issn
1365-2141pii
bjh1882journal_volume
108pub_type
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