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char = o;code = 111
char = m;code = 109
char = p;code = 112
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char = v;code = 118
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = u;code = 117
char = d;code = 100
char = y;code = 121
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = f;code = 102
char = r;code = 114
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = b;code = 98
char = r;code = 114
char = a;code = 97
char = s;code = 115
char = ;code = 32
char = N;code = 78
char = a;code = 97
char = j;code = 106
char = a;code = 97
char = ;code = 32
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = N;code = 78
char = a;code = 97
char = j;code = 106
char = a;code = 97
char = ;code = 32
char = k;code = 107
char = a;code = 97
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = N;code = 78
char = a;code = 97
char = j;code = 106
char = a;code = 97
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = j;code = 106
char = e;code = 101
char = .;code = 46
result sql = Comparative study of structure and activity of cytotoxins from venom of the cobras Naja oxiana, Naja kaouthia, and Naja haje.
Comparative study of structure and activity of cytotoxins from venom of the cobras Naja oxiana, Naja kaouthia, and Naja haje.
char = C;code = 67
char = y;code = 121
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = e;code = 101
char = l;code = 108
char = y;code = 121
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = r;code = 114
char = g;code = 103
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = p;code = 112
char = o;code = 111
char = l;code = 108
char = y;code = 121
char = p;code = 112
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = a;code = 97
char = t;code = 116
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = s;code = 115
char = t;code = 116
char = i;code = 105
char = t;code = 116
char = u;code = 117
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = b;code = 98
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = 6;code = 54
char = 0;code = 48
char = %;code = 37
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = a;code = 97
char = l;code = 108
char = l;code = 108
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
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char = n;code = 110
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = o;code = 111
char = b;code = 98
char = r;code = 114
char = a;code = 97
char = ;code = 32
char = v;code = 118
char = e;code = 101
char = n;code = 110
char = o;code = 111
char = m;code = 109
char = ;;code = 59
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = y;code = 121
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = m;code = 109
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = b;code = 98
char = i;code = 105
char = o;code = 111
char = l;code = 108
char = o;code = 111
char = g;code = 103
char = i;code = 105
char = c;code = 99
char = a;code = 97
char = l;code = 108
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = i;code = 105
char = t;code = 116
char = i;code = 105
char = e;code = 101
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = B;code = 66
char = y;code = 121
char = ;code = 32
char = C;code = 67
char = D;code = 68
char = ;code = 32
char = s;code = 115
char = p;code = 112
char = e;code = 101
char = c;code = 99
char = t;code = 116
char = r;code = 114
char = o;code = 111
char = s;code = 115
char = c;code = 99
char = o;code = 111
char = p;code = 112
char = y;code = 121
char = ,;code = 44
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = 1;code = 49
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = 2;code = 50
char = ;code = 32
char = N;code = 78
char = a;code = 97
char = j;code = 106
char = a;code = 97
char = ;code = 32
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = a;code = 97
char = n;code = 110
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = 3;code = 51
char = ;code = 32
char = N;code = 78
char = a;code = 97
char = j;code = 106
char = a;code = 97
char = ;code = 32
char = k;code = 107
char = a;code = 97
char = o;code = 111
char = u;code = 117
char = t;code = 116
char = h;code = 104
char = i;code = 105
char = a;code = 97
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = 1;code = 49
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = C;code = 67
char = T;code = 84
char = 2;code = 50
char = ;code = 32
char = N;code = 78
char = a;code = 97
char = j;code = 106
char = a;code = 97
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = j;code = 106
char = e;code = 101
char = ;code = 32
char = w;code = 119
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = h;code = 104
char = o;code = 111
char = w;code = 119
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = h;code = 104
char = a;code = 97
char = v;code = 118
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = i;code = 105
char = m;code = 109
char = i;code = 105
char = l;code = 108
char = a;code = 97
char = r;code = 114
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = a;code = 97
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = ;code = 32
char = a;code = 97
char = q;code = 113
char = u;code = 117
char = e;code = 101
char = o;code = 111
char = u;code = 117
char = s;code = 115
char = ;code = 32
char = e;code = 101
char = n;code = 110
char = v;code = 118
char = i;code = 105
char = r;code = 114
char = o;code = 111
char = n;code = 110
char = m;code = 109
char = e;code = 101
char = n;code = 110
char = t;code = 116
char = ,;code = 44
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = d;code = 100
char = o;code = 111
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = a;code = 97
char = t;code = 116
char = i;code = 105
char = n;code = 110
char = g;code = 103
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = -;code = 45
char = s;code = 115
char = h;code = 104
char = e;code = 101
char = e;code = 101
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char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ,;code = 44
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = t;code = 116
char = w;code = 119
char = i;code = 105
char = s;code = 115
char = t;code = 116
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char = n;code = 110
char = g;code = 103
char = ;code = 32
char = a;code = 97
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char = g;code = 103
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = t;code = 116
char = a;code = 97
char = -;code = 45
char = s;code = 115
char = h;code = 104
char = e;code = 101
char = e;code = 101
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char = ;code = 32
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char = d;code = 100
char = ;code = 32
char = t;code = 116
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char = e;code = 101
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char = f;code = 102
char = o;code = 111
char = r;code = 114
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char = a;code = 97
char = t;code = 116
char = i;code = 105
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char = n;code = 110
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char = o;code = 111
char = f;code = 102
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = s;code = 115
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char = l;code = 108
char = f;code = 102
char = i;code = 105
char = d;code = 100
char = e;code = 101
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char = u;code = 117
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char = .;code = 46
char = ;code = 32
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char = d;code = 100
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char = e;code = 101
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char = c;code = 99
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char = d;code = 100
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char = a;code = 97
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char = d;code = 100
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char = C;code = 67
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char = N;code = 78
char = a;code = 97
char = j;code = 106
char = a;code = 97
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char = o;code = 111
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char = a;code = 97
char = s;code = 115
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char = i;code = 105
char = k;code = 107
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char = 0;code = 48
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char = 1;code = 49
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char = 1;code = 49
char = ;code = 32
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char = a;code = 97
char = j;code = 106
char = a;code = 97
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char = a;code = 97
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char = i;code = 105
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char = d;code = 100
char = ;code = 32
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char = y;code = 121
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char = ;code = 32
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char = ;code = 32
char = 0;code = 48
char = .;code = 46
char = 5;code = 53
char = -;code = 45
char = 0;code = 48
char = .;code = 46
char = 8;code = 56
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
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char = o;code = 111
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char = n;code = 110
char = s;code = 115
char = ;code = 32
char = u;code = 117
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char = d;code = 100
char = e;code = 101
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char = s;code = 115
char = t;code = 116
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char = d;code = 100
char = y;code = 121
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char = i;code = 105
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char = d;code = 100
char = u;code = 117
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char = e;code = 101
char = d;code = 100
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char = e;code = 101
char = c;code = 99
char = r;code = 114
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = H;code = 72
char = L;code = 76
char = 6;code = 54
char = 0;code = 48
char = ;code = 32
char = c;code = 99
char = e;code = 101
char = l;code = 108
char = l;code = 108
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = ;code = 32
char = f;code = 102
char = a;code = 97
char = i;code = 105
char = l;code = 108
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = t;code = 116
char = i;code = 105
char = v;code = 118
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = p;code = 112
char = o;code = 111
char = p;code = 112
char = t;code = 116
char = o;code = 111
char = s;code = 115
char = i;code = 105
char = s;code = 115
char = .;code = 46
char = ;code = 32
char = T;code = 84
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = d;code = 100
char = i;code = 105
char = f;code = 102
char = f;code = 102
char = e;code = 101
char = r;code = 114
char = e;code = 101
char = n;code = 110
char = c;code = 99
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = ;code = 32
char = c;code = 99
char = y;code = 121
char = t;code = 116
char = o;code = 111
char = t;code = 116
char = o;code = 111
char = x;code = 120
char = i;code = 105
char = c;code = 99
char = i;code = 105
char = t;code = 116
char = y;code = 121
char = ;code = 32
char = a;code = 97
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = u;code = 117
char = p;code = 112
char = p;code = 112
char = o;code = 111
char = s;code = 115
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = t;code = 116
char = o;code = 111
char = ;code = 32
char = b;code = 98
char = e;code = 101
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = l;code = 108
char = a;code = 97
char = t;code = 116
char = e;code = 101
char = d;code = 100
char = ;code = 32
char = n;code = 110
char = o;code = 111
char = t;code = 116
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = f;code = 102
char = e;code = 101
char = a;code = 97
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = s;code = 115
char = e;code = 101
char = c;code = 99
char = o;code = 111
char = n;code = 110
char = d;code = 100
char = a;code = 97
char = r;code = 114
char = y;code = 121
char = ;code = 32
char = s;code = 115
char = t;code = 116
char = r;code = 114
char = u;code = 117
char = c;code = 99
char = t;code = 116
char = u;code = 117
char = r;code = 114
char = e;code = 101
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = t;code = 116
char = h;code = 104
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = e;code = 101
char = p;code = 112
char = t;code = 116
char = i;code = 105
char = d;code = 100
char = e;code = 101
char = s;code = 115
char = ,;code = 44
char = ;code = 32
char = b;code = 98
char = u;code = 117
char = t;code = 116
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = i;code = 105
char = n;code = 110
char = t;code = 116
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char = c;code = 99
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char = i;code = 105
char = o;code = 111
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char = s;code = 115
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char = i;code = 105
char = d;code = 100
char = e;code = 101
char = ;code = 32
char = c;code = 99
char = h;code = 104
char = a;code = 97
char = i;code = 105
char = n;code = 110
char = s;code = 115
char = ;code = 32
char = o;code = 111
char = f;code = 102
char = ;code = 32
char = v;code = 118
char = a;code = 97
char = r;code = 114
char = i;code = 105
char = a;code = 97
char = b;code = 98
char = l;code = 108
char = e;code = 101
char = ;code = 32
char = a;code = 97
char = m;code = 109
char = i;code = 105
char = n;code = 110
char = o;code = 111
char = ;code = 32
char = a;code = 97
char = c;code = 99
char = i;code = 105
char = d;code = 100
char = ;code = 32
char = r;code = 114
char = e;code = 101
char = s;code = 115
char = i;code = 105
char = d;code = 100
char = u;code = 117
char = e;code = 101
char = s;code = 115
char = ;code = 32
char = w;code = 119
char = i;code = 105
char = t;code = 116
char = h;code = 104
char = ;code = 32
char = l;code = 108
char = i;code = 105
char = p;code = 112
char = i;code = 105
char = d;code = 100
char = s;code = 115
char = ;code = 32
char = a;code = 97
char = n;code = 110
char = d;code = 100
char = /;code = 47
char = o;code = 111
char = r;code = 114
char = ;code = 32
char = m;code = 109
char = e;code = 101
char = m;code = 109
char = b;code = 98
char = r;code = 114
char = a;code = 97
char = n;code = 110
char = e;code = 101
char = ;code = 32
char = p;code = 112
char = r;code = 114
char = o;code = 111
char = t;code = 116
char = e;code = 101
char = i;code = 105
char = n;code = 110
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char = <;code = 60
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result sql = Cytotoxins are positively charged polypeptides that constitute about 60% of all proteins in cobra venom; they have a wide spectrum of biological activities. By CD spectroscopy, cytotoxins CT1 and CT2 Naja oxiana, CT3 Naja kaouthia, and CT1 and CT2 Naja haje were shown to have similar secondary structure in an aqueous environment, with dominating beta-sheet structure, and to vary in the twisting angle of the beta-sheet and the conformation of disulfide groups. Using dodecylphosphocholine micelles and liposomes, CT1 and CT2 Naja oxiana were shown to incorporate into lipid structures without changes in the secondary structure of the peptides. The binding of CT1 and CT2 Naja oxiana with liposomes was associated with an increase in the beta-sheet twisting and a sign change of the dihedral angle of one disulfide group. The cytotoxins were considerably different in cytotoxicity and cooperativity of the effect on human promyelocytic leukemia cells HL60, mouse myelomonocytic cells WEHI-3, and human erythroleukemic cells K562. The most toxic CT2 Naja oxiana and CT3 Naja kaouthia possessed low cooperativity of interaction (Hill coefficient h = 0.6-0.8), unlike 10-20-fold less toxic CT1 and CT2 Naja haje (h = 1.2-1.7). CT1 Naja oxiana has an intermediate position on the cytotoxicity scale and is characterized by h = 0.5-0.8. The cytotoxins under study induced necrosis of HL60 cells and failed to activate apoptosis. The differences in cytotoxicity are supposed to be related not with features of the secondary structure of the peptides, but with interactions of side chains of variable amino acid residues with lipids and/or membrane proteins.

Publication: Biochemistry Mosc. 2004 Oct ;69(10)::1148-57.
Publication Date: 2004 Oct
Study Author(s): Feofanov, A V;Sharonov, G V;Dubinnyi, M A;Astapova, M V;Kudelina, I A;Dubovskii, P V;Rodionov, D I;Utkin, Yu N;Arseniev, A S;
Institution: Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Mikklukho-Maklaya 16/10, Moscow 117997, Russia. [email protected]
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Cytotoxins are positively charged polypeptides that constitute about 60% of all proteins in cobra venom; they have a wide spectrum of biological activities. By CD spectroscopy, cytotoxins CT1 and CT2 Naja oxiana, CT3 Naja kaouthia, and CT1 and CT2 Naja haje were shown to have similar secondary structure in an aqueous environment, with dominating beta-sheet structure, and to vary in the twisting angle of the beta-sheet and the conformation of disulfide groups. Using dodecylphosphocholine micelles and liposomes, CT1 and CT2 Naja oxiana were shown to incorporate into lipid structures without changes in the secondary structure of the peptides. The binding of CT1 and CT2 Naja oxiana with liposomes was associated with an increase in the beta-sheet twisting and a sign change of the dihedral angle of one disulfide group. The cytotoxins were considerably different in cytotoxicity and cooperativity of the effect on human promyelocytic leukemia cells HL60, mouse myelomonocytic cells WEHI-3, and human erythroleukemic cells K562. The most toxic CT2 Naja oxiana and CT3 Naja kaouthia possessed low cooperativity of interaction (Hill coefficient h = 0.6-0.8), unlike 10-20-fold less toxic CT1 and CT2 Naja haje (h = 1.2-1.7). CT1 Naja oxiana has an intermediate position on the cytotoxicity scale and is characterized by h = 0.5-0.8. The cytotoxins under study induced necrosis of HL60 cells and failed to activate apoptosis. The differences in cytotoxicity are supposed to be related not with features of the secondary structure of the peptides, but with interactions of side chains of variable amino acid residues with lipids and/or membrane proteins.
PMID: 15527416

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