MUTATION Codon 30 (AGG->ACG)
 
AMINO ACID REPLACEMENT Arg->Thr
TYPE OF DELTA-THAL delta°
MECHANISM Abolishes splicing at the 5' site of IVS-I
IDENTIFICATION Not defined; presumably amplification of the delta-globin gene; sequencing
% HB A2 IN HETEROZYGOTE(S) Not reported; mutation was found in one (or more) beta-thal heterozygote(s) with normal Hb A2 level (method of Hb A2 quantitation not given)
% HB A2 IN HOMOZYGOTE(S) Not reported
OCCURRENCE In Italian family(ies)
HAPLOTYPE Not determined
FOUND IN COMBINATION WITH ABNORMAL HB(S) None
FOUND IN COMBINATION WITH DELTA-THAL ALLELE(S) None
OTHER INFORMATION None
       
REFERENCES
1. Pirastu, M., Ristaldi, M.S., Loudianos, G., Murru, S., Sciarratta, G.V., Parodi, M.I., Leone, D., Agosti, S., and Cao, A.: Ann. N.Y. Acad. Sci., 612:90, 1990.


This material is from the book A Syllabus of Thalassemia Mutations (1997) by Titus H.J. Huisman, Marianne F.H. Carver, and Erol Baysal, published by The Sickle Cell Anemia Foundation in Augusta, GA, USA. Copyright © 1997 by Titus H.J. Huisman. All rights reserved. Neither this work nor any part may be reproduced or transmitted in any form or by any means, electronic or mechanical, microfilming and recording, or by any information storage and retrieval systems, without permission in writing from the Author.