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Table 2 Distribution of Cys clusters among Tetrahymena MTs

From: The Tetrahymena metallothionein gene family: twenty-one new cDNAs, molecular characterization, phylogenetic study and comparative analysis of the gene expression under different abiotic stressors

CdMT CCC CXCC CXCXC XCCX CXC XXCXX Total Cys % Cys(a) Length
TpigMT-1 4 2 0 6 2 0 34 28.81 118
TpyrMT-1 4 2 0 5 1 1 31 28.97 107
TpyrMT-2 6 5 0 6 4 1 54 29.83 181
TtheMTT1 6 3 0 8 2 1 48 29.63 162
TtheMTT3 2 2 1 9 3 3 42 25.93 162
TtheMTT5 1 1 0 5 1 6 24 24.24 99
TrosMTT1 4 2 0 6 2 0 34 30.09 113
TtroMTT1 6 3 0 8 2 0 47 30.13 156
TmobMT1 6 3 0 9 3 0 51 29.65 172
TvorMT1 6 3 0 8 2 1 48 28.40 169
ThegMT1 4 2 0 6 2 0 34 27.87 122
ThegMT2 4 1 0 8 7 4 49 25.65 191
ThegMT3 6 3 0 9 3 0 51 28.65 178
ThegMT4 5 1 0 8 6 4 50 25.91 193
TborMTT1 4 2 0 6 2 0 34 30.09 113
TborMTT2 5 2 2 9 1 2 49 30.06 163
TelliMTT1 6 3 0 7 1 2 45 29.22 154
TelliMTT2 6 3 0 6 0 3 42 28.97 145
TmalaMTT1 6 3 0 8 2 1 48 29.63 162
TmalaMTT2 5 3 0 8 1 2 44 27.16 162
TmalaMTT3 2 2 0 12 2 6 46 25.70 179
TmalaMTT4 1 1 0 7 1 3 25 25.25 99
TpatMTT1 4 2 0 6 2 0 34 29.06 117
TpatMTT2 4 2 0 6 3 3 39 26.35 148
TamerMTT1 4 2 0 5 1 1 31 29.25 106
TamerMTT2 6 3 0 8 2 1 48 30.57 157
Total Cys(b) 351 183 9 378 116 45 1082 28.27 147
% Cys (c) 32.4 16.9 0.8 34.9 10.7 4.1 100   
CuMT          
TpigMT-2 0 0 0 1 12 2 28 29.17  
TtheMTT2 0 0 0 0 15 2 32 29.63 96
TtheMTT4 0 0 0 0 15 2 32 29.63 108
TrosMTT2 0 0 0 1 9 2 22 28.21 108
TtroMT1 0 0 0 1 12 2 28 28.00 78
TtroMT2 0 0 0 0 15 2 32 26.63 100
sp1.7-MT1 0 1 0 0 14 1 32 26.63 108
TelliMTT6 0 0 0 0 21 2 44 29.73 108
TelliMTT8 0 0 0 0 12 2 26 28.89 148
TmalaMTT5 0 0 0 0 15 2 32 29.63 90
TborMTT3 0 0 0 1 21 0 44 27.85 108
TborMTT4 0 0 0 1 6 2 16 26.67 158
TborMTT6 0 0 0 1 21 0 44 27.85 60
TborMTT7 0 0 0 0 21 0 42 28.19 158
TborMTT8 0 0 0 1 9 2 22 28.21 149
TamerMTT3 0 0 0 0 14 3 31 28.97 78
ImMTT2 0 0 0 0 27 0 54 32.34 107
Total Cys(b) 0 3 0 14 518 26 561 28.60 167
% Cys(c) 0 0.5 0 2.5 92.3 4.6 100   113
  1. New MTs reported in this study are in bold text. A cluster is defined as any group of contiguous residues in which any two Cys residues are separated from one another by, at most, any other amino acid (X). (a) Percentage of Cys residues in the complete MT. (b) Total Cys residues/cluster type. (c) Percentage of Cys residues/cluster type