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. |