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MUTATION | |
Codon 41 (-C); TTC(Phe)->TT- | |
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AMINO ACID REPLACEMENT | |
None | |
TYPE OF BETA-THAL | |
beta° | |
MECHANISM | |
This frameshift results in a stop codon at codon 60 terminating translation | |
IDENTIFICATION | |
Amplification of the beta-globin gene; cloning of the beta-globin gene; DNA sequencing; dot-blot analysis with allele specific probes; ASO | |
HEMATOLOGY IN HETEROZYGOTE(S) | |
Not reported | |
HEMATOLOGY IN HOMOZYGOTE(S) | |
Not reported | |
OCCURRENCE | |
In a compound heterozygous Thai patient from Southern Thailand | |
HAPLOTYPE | |
[+ O - - - + - +] | |
FOUND IN COMBINATION WITH ABNORMAL HB(S) | |
Not reported | |
FOUND IN COMBINATION WITH BETA-THAL ALLELE(S) | |
With the beta-Malay mutation (codon 19, AAC->AGC): Hb 2.4 g/dl (!); MCV 72 fl; MCH 24.5 pg; Hb Malay, Hb F, and Hb A2 (2.6%) were present; ~10 nRBC/100 WBC were observed in peripheral blood | |
OTHER INFORMATION | |
None | |