| MUTATION | IVS-II-897, A->G; AG^CT->GGCT | ||
|---|---|---|---|
| AMINO ACID REPLACEMENT | None | ||
| TYPE OF DELTA-THAL | delta° | ||
| MECHANISM | Splicing of mRNA is prevented; no normal translation | ||
| IDENTIFICATION | Amplification of the delta-globin gene; DNA sequencing | ||
| % HB A2 IN HETEROZYGOTE(S) | Hb A2 was quantitated by a "standard method" (not defined); heterozygotes have a Hb A2 value of 1.2% | ||
| % HB A2 IN HOMOZYGOTE(S) | None | ||
| 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. | ||