MUTATION | Codon 141 (CTG->CCG) | ||
---|---|---|---|
AMINO ACID REPLACEMENT | Leu->Pro | ||
TYPE OF DELTA-THAL | delta+, perhaps delta° | ||
MECHANISM | Formation of a (severely) unstable Hb | ||
IDENTIFICATION | Amplification of the delta-globin gene; DNA sequencing | ||
% HB A2 IN HETEROZYGOTE(S) | Hb A2 was quantitated by a standard procedure (no details given); its level in four heterozygotes was 1.4-1.6% | ||
% HB A2 IN HOMOZYGOTE(S) | In one homozygote no Hb A2 detectable | ||
OCCURRENCE | In a Greek Cypriot family | ||
HAPLOTYPE | [+ - - - + - + - +] | ||
FOUND IN COMBINATION WITH ABNORMAL HB(S) | None | ||
FOUND IN COMBINATION WITH DELTA-THAL ALLELE(S) | None | ||
OTHER INFORMATION | None |
REFERENCES | |||
1. | Trifillis, P., Ioannou, P., Schwartz, E., and Surrey, S.: Blood, 78:3298, 1991. |