I-a.   Beta-Thalassemia; Nondeletional Mutants

-101 (C->T)
-92 (C->T)
-90 (C->T)
-88 (C->A)
-88 (C->T)
-87 (C->A)
-87 (C->G)
-87 (C->T)
-86 (C->A)
-86 (C->G)
-32 (C->A)
-31 (A->C)
-31 (A->G)
-30 (T->A)
-30 (T->C)
-29 (A->G)
-28 (A->C)
-28 (A->G)
CAP +1 (A->C)
5'UTR; +10 (-T)
5'UTR; +22 (G->A)
5'UTR; +33 (C->G)
5'UTR; +43 to +40 (-AAAC)
Initiation codon ATG->GTG
Initiation codon ATG->ACG
Initiation codon ATG->AGG
Initiation codon ATG->ATA
Initiation codon ATG->ATC
Initiation codon ATG->ATT
Codon 1 (-G); GTG(Val)->-TG
Codons 2/3/4 (-9 bp; +31 bp); (see below)
Codon 5 (-CT); CCT(Pro)->C--
Codon 6 (-A); GAG(Glu)->G-G
Codon 8 (-AA); AAG(Lys)->--G
Codons 8/9 (+G); AAG·TCT(Lys;Ser)->AAG·G·TCT
Codons 9/10 (+T); TCT·GCC(Ser;Ala)->TCT·T·GCC
Codon 10 (C->A); GCC(Ala)->GCA(Ala)
Codon 11 (-T); GTT(Val)->GT-
Codons 14/15 (+G);
Codon 15 (G->A); TGG(Trp)->TAG(stop codon)
Codon 15 (G->A); TGG(Trp)->TGA(stop codon)
Codon 15 (-T); TGG(Trp)->-GG
Codon 16 (-C); GGC(Gly)->GG-
Codon 17 (A->T); AAG(Lys)->TAG(stop codon)
Codon 19 (A->G); AAC(Asn)->AGC(Ser)
Codon 22 (A->C); GAA(Glu)->GCA(Ala) (not listed in Table I; this mutation is likely not associated with thalassemia)
Codon 22 (G->T); GAA(Glu)->TAA(stop codon)
Codons 22/23/24 (GAA·GTT·GGT; Glu·Val·Gly); deletion of -AAGTTGG
Codon 24; GGT(Gly); (-G; +CAC)
Codon 24 (T->A); GGT(Gly)->GGA(Gly)
Codons 24/25 (-GGT); GGT·GGT(Gly-Gly)->---·GGT(Gly)
Codons 25/26 (+T); GGT·GAG(Gly-Glu)->GGT·T·GAG(Gly-Term)
Codon 26 (GAG->AAG)
Codon 26 (G->T); GAG(Glu)->TAG(stop codon)
Codon 26 (+T); GAG(Glu)->GTAG
Codon 27 (G->T); GCC(Ala)->TCC(Ser)
Codons 27/28 (+C); GCC·CTG(Ala·Ser)->GCC·C·CTG
Codon 28 (-C); CTG(Leu)->-TG
Codon 28 (T->G); CTG(Leu)->CGG(Arg)
Codons 28/29 (-G); CTG·GGC(Leu·Gly)->CTG·-GC
IVS-I (-3) or codon 29 (C->T); GGC(Gly)->GGT(Gly)
IVS-I (-2) or codon 30 (A->G); AG^GTTGGT->GG^GTTGGT
IVS-I (-1) or codon 30 (G->A); AG^GTTGGT->AA^GTTGGT
IVS-I (-1) or codon 30 (G->C); AG^GTTGGT->AC^GTTGGT
IVS-I-1 (G->A); AG^GTTGGT->AGATTGGT
IVS-I-1 (G->T); AG^GTTGGT->AGTTTGGT
IVS-I-2 (T->A); AG^GTTGGT->AGGATGGT
IVS-I-2 (T->C); AG^GTTGGT->AGACTGGT
IVS-I-2 (T->G); AG^GTTGGT->AGGGTGGT
IVS-I-5 (G->A)
IVS-I-5 (G->A) plus the 7,201 bp deletion involving part of the delta gene; the Corfu deletion (deltabeta-thal)
IVS-I-5 (G->C)
IVS-I-5 (G->T)
IVS-I-6 (T->C); the Portuguese type
IVS-I-110 (G->A)
IVS-I-116 (T->G)
IVS-I-128 (T->G); TTAG^GCTG->TGAG^GCTG
IVS-I-130 (G->A); TTAG^GCTG->TTAA GCTG
IVS-I-130 (G->C); TTAG^GCTG->TTAC GCTG
Codon 30 (AGG->AGC) [IVS-I-130 (+1)]
IVS-I, 3' end; -17 bp
Codon 31 (-C); CTG->-TG
Codons 31/32 (+CGG)
Codon 32 (T->A) CTG->CAG; codon 98 (G->A) GTG->ATG
Codons 33/34 (-GTG); GTG·GTC(Val-Val)->GTC·---(Val)
Codon 35 (C->A); TAC->TAA (Tyr->Term codon)
Codon 35 (-C); TAC(Tyr)->TA-
Codons 36/37 (-T); CCT·TGG(Pro-Trp)->CCT·-GG
Codon 37 (G->A); TGG(Trp)->TGA(stop codon)
Codons 37/38/39 (-7 nts)
Codons 38/39 (-C); ACC·CAG(Thr·Gln)->ACC·-AG
Codons 38/39 (-CC); ACC·CAG(Thr-Glu)->A--·CAG
Codon 39 (C->T); CAG(Gln)->TAG(stop codon)
Codon 40 (-G); AGG(Arg)->AG-
Codons 40/41 (+T); AGG·TTC(Arg-Phe)->AGG·T·TTC
Codon 41 (-C); TTC(Phe)->TT-
Codons 41/42 (-TTCT); TTC·TTT(Phe-Phe)->--- -TT
Codons 42/43 (+G); TTT·GAG(Phe·Glu)->TTT·G·GAG
Codons 42/43 (+T) TTT·GAG(Phe·Glu)->TTT·TGA·G(Phe;stop codon)
Codon 43 (G->T); GAG(Glu)->TAG (stop codon)
Codon 44 (-C); TCC(Ser)->TC-
Codon 45 (-T); TTT(Phe)->-TT
Codon 47 (+A); GAT(Asp)->GAA(Glu)·T
Codons 47/48 (+ATCT); GAT·CTG(Asp-Leu)->GAT·CTATCTG
Codon 51 (-C); CCT(Pro)->-CT
53/54 (+G); GCT·GTT(Ala-Val)->GCT·G·GTT
Codon 54 (-T); GTT(Val)->GT-
Codons 54/55 (+A); GTT·ATG(Val·Met)->GTT·A·ATG
Codons 56/57/58/59/60 (GGC·AAC·CCT·AAG·GTG); duplication of 14 bp
Codons 57/58 (+C); AAC·CCT(Asn·Pro)->AAC·C·CCT
Codon 59 (-A); AAG(Lys)->-AG
Codon 60 (T->A); GTG(Val)->GAG(Glu)
Codon 61 (A->T); AAG(Lys)->TAG(stop codon)
Codon 64 (-G); GGC(Gly)->-GC
Codon 67 (-TG); GTG(Val)->--G
Codons 71/72 (+A); TTT·AGT(Phe·Ser)->TTT·A·AGT
Codons 71/72 (+T); TTT·AGT(Phe·Ser)->TTT·T·AGT
Codons 72/73; -AGTGA, +T; AGT·GAT(Ser-Asp)->--- -TT
Codons 74/75 (-C); GGC·CTG(Gly·Leu)->GG-·CTG
Codon 76 (-C); GCT(Ala)->G-T
Codons 82/83 (-G); AAG·GGC(Lys·Gly)->AAG·-GC
Codons 84/85 (+C); ACC·TTT(Thr·Phe)->ACC·C·TTT
Codons 84/85/86 (+T); ACC·TTT·GCC(Thr·Phe·Ala)->ACC·TTT·T·GCC
Codon 88 (+T); CTG(Leu)->CTTG
Codons 89/90 (-GT); AGT·GAG(Ser·Glu)->A--·GAG
Codon 90 (G->T); GAG(Glu)->TAG(stop codon)
Codon 94 (+TG); GAC(Asp)->GTGAC
Codon 95 (+A); AAG(Lys)->AAAG
Codon 100; -CTT, +TCTGAGAACTT
IVS-II-1 (G->A);
IVS-II-1 (G->C);
IVS-II-2,3 (+11, -2); insertion of 11 bp (5'-ACGTTCT CTGA-3') and deletion of GA (nts 2 and 3 of IVS-II) between positions 1 and 4 of IVS-II
IVS-II-4,5 (-AG);
IVS-II-5 (G->C)
IVS-II-654 (C->T); AAGGCAATA->AAG^GTAATA
IVS-II-705 (T->G); GATGTAAGA->GAG^GTAAGA
IVS-II-745 (C->G); CAGCTACCAT->CAG^GTACCAT
IVS-II-837 (T->G);
IVS-II-843 (T->G);
IVS-II-844 (C->G);
IVS-II-848 (C->A);
IVS-II-848 (C->G);
IVS-II-849 (A->C);
IVS-II-849 (A->G);
IVS-II-850 (-G);
IVS-II-850 (G->A);
IVS-II-850 (G->C);
IVS-II-850 (G->T);
Codons 106/107 (+G); CTG·GGC(Leu·Gly)->CTG·G·GC
Codons 108/109/110/111/112 (-12 bp);
Codon 109 (-G); GTG(Val)->-TG
Codon 110 (T->C); CTG(Leu)->CCG(Pro)
Codon 112 (T->A); TGT(Cys)->TGA(stop codon)
Codon 114 (T->C); CTG(Leu)->CCG(Pro)
Codon 114 (-CT; +G); CTG(Leu)->-GG
Codon 115 (C->A); GCC(Ala)->GAC(Asp)
Codons 120/121 (+A); AAA·GAA(Lys-Glu)->AAA·A·GAA
Codon 121 (G->T); GAA(Glu)->TAA(stop codon)
Codon 123 (-A); ACC(Thr)->-CC
Codons 123/124/125 (-ACCCCACC); ACC·CCA·CCA(Thr·Pro·Pro)->--- --- --A
Codon 124 (-A); CCA(Pro)->CC-
Codon 125 (-A); CCA(Pro)->CC-
Codons 124/125/126 (+CCA); CCA·CCA·GTG(Pro·Pro·Val)->CCA·CCA·CCA·GTG(Pro·Pro·Pro·Val)
Codon 126 (-T); GTG(Val)->G-G
Codon 126 (T->G); GTG(Val)->GGG(Gly)
Codons 126-131 (Val-Gln-Ala-Ala-Thr-Gln) (-17 bp); GTG·CAG·GCT·GCC·TAT·CAG->G
Codon 127 (A->C); CAG(Gln)->CCG(Pro)
Codon 127 (A->G); CAG(Gln)->CGG(Arg)
Codon 127 (C->T); CAG(Gln)->TAG(stop codon)
Codons 127/128 (-AGG); CAG·GCT(Gln·Ala)->C-- -CT(Pro)
Codons 128/129 (-4 bp, -GCTG; +5 bp, +CCACA)
Codons 132-135 (-11 bp, -AAAGTGGTGGC)

Codons 134/135/136/137 [-(G)TGGCTGGTGT(G) and +(G)GCAG(G)]; GTG·GCT·GGT·GTG(Val-Ala-Gly-Val)->GGC·AGG(Gly-Arg)
+1480 (C->G); also known as 3' terminating codon +6 (C->G)
3'UTR (-GCATCTGGATTCT) 13 bp deletion between positions +1565 to +1577 (the numbers are relative to the Cap site)
T->C; 12 nts 5' to the poly A site or +1570 (the number is relative to the Cap site)
Poly A (T->C); AATAAA->AACAAA
Poly A (A->G); AATAAA->AATGAA
Poly A (A->G); AATAAA->AATAGA
Poly A (A->G); AATAAA->AATAAG
Poly A (-AT or -TA); AATAAA->A--AAA
Poly A (-AATAA); AATAAA->-----A


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.