char = S;code = 83 char = e;code = 101 char = l;code = 108 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 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 = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = d;code = 100 char = e;code = 101 char = p;code = 112 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 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 char = ;code = 32 char = k;code = 107 char = i;code = 105 char = n;code = 110 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = (;code = 40 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = );code = 41 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = a;code = 97 char = d;code = 100 char = i;code = 105 char = o;code = 111 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = z;code = 122 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = a;code = 97 char = g;code = 103 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = .;code = 46 result sql = Selective inhibition of the DNA-dependent protein kinase (DNA-PK) by the radiosensitizing agent caffeine.
Selective inhibition of the DNA-dependent protein kinase (DNA-PK) by the radiosensitizing agent caffeine.char = C;code = 67 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = c;code = 99 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = e;code = 101 char = c;code = 99 char = k;code = 107 char = p;code = 112 char = o;code = 111 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = s;code = 115 char = ,;code = 44 char = ;code = 32 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = z;code = 122 char = e;code = 101 char = s;code = 115 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 = t;code = 116 char = o;code = 111 char = ;code = 32 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = i;code = 105 char = z;code = 122 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = r;code = 114 char = a;code = 97 char = d;code = 100 char = i;code = 105 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = -;code = 45 char = i;code = 105 char = n;code = 110 char = d;code = 100 char = u;code = 117 char = c;code = 99 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = c;code = 99 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = ;code = 32 char = k;code = 107 char = i;code = 105 char = l;code = 108 char = l;code = 108 char = i;code = 105 char = n;code = 110 char = g;code = 103 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = t;code = 116 char = h;code = 104 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 char = ;code = 32 char = k;code = 107 char = i;code = 105 char = n;code = 110 char = a;code = 97 char = s;code = 115 char = e;code = 101 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 = t;code = 116 char = w;code = 119 char = o;code = 111 char = ;code = 32 char = c;code = 99 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = ;code = 32 char = c;code = 99 char = y;code = 121 char = c;code = 99 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = h;code = 104 char = e;code = 101 char = c;code = 99 char = k;code = 107 char = p;code = 112 char = o;code = 111 char = i;code = 105 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = g;code = 103 char = u;code = 117 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = o;code = 111 char = r;code = 114 char = s;code = 115 char = ,;code = 44 char = ;code = 32 char = A;code = 65 char = t;code = 116 char = a;code = 97 char = x;code = 120 char = i;code = 105 char = a;code = 97 char = -;code = 45 char = T;code = 84 char = e;code = 101 char = l;code = 108 char = a;code = 97 char = n;code = 110 char = g;code = 103 char = i;code = 105 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = a;code = 97 char = s;code = 115 char = i;code = 105 char = a;code = 97 char = ;code = 32 char = m;code = 109 char = u;code = 117 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = (;code = 40 char = A;code = 65 char = T;code = 84 char = M;code = 77 char = );code = 41 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = A;code = 65 char = T;code = 84 char = M;code = 77 char = -;code = 45 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = R;code = 82 char = a;code = 97 char = d;code = 100 char = 3;code = 51 char = -;code = 45 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 = (;code = 40 char = A;code = 65 char = T;code = 84 char = R;code = 82 char = );code = 41 char = .;code = 46 char = ;code = 32 char = I;code = 73 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = s;code = 115 char = t;code = 116 char = ,;code = 44 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = h;code = 104 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = e;code = 101 char = d;code = 100 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 = l;code = 108 char = i;code = 105 char = t;code = 116 char = t;code = 116 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = e;code = 101 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 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 char = ;code = 32 char = k;code = 107 char = i;code = 105 char = n;code = 110 char = a;code = 97 char = s;code = 115 char = e;code = 101 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 = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = d;code = 100 char = e;code = 101 char = p;code = 112 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 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 char = ;code = 32 char = k;code = 107 char = i;code = 105 char = n;code = 110 char = a;code = 97 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = (;code = 40 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = );code = 41 char = ,;code = 44 char = ;code = 32 char = w;code = 119 char = h;code = 104 char = i;code = 105 char = c;code = 99 char = h;code = 104 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = e;code = 101 char = s;code = 115 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = i;code = 105 char = a;code = 97 char = l;code = 108 char = ;code = 32 char = f;code = 102 char = o;code = 111 char = r;code = 114 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = a;code = 97 char = i;code = 105 char = r;code = 114 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = ;code = 32 char = d;code = 100 char = o;code = 111 char = u;code = 117 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = -;code = 45 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = k;code = 107 char = s;code = 115 char = .;code = 46 char = ;code = 32 char = P;code = 80 char = r;code = 114 char = e;code = 101 char = v;code = 118 char = i;code = 105 char = o;code = 111 char = u;code = 117 char = s;code = 115 char = l;code = 108 char = y;code = 121 char = ,;code = 44 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = y;code = 121 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = r;code = 114 char = 2;code = 50 char = 1;code = 49 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 = 3;code = 51 char = 2;code = 50 char = ;code = 32 char = k;code = 107 char = D;code = 68 char = a;code = 97 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = b;code = 98 char = u;code = 117 char = n;code = 110 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = l;code = 108 char = i;code = 105 char = c;code = 99 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 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 char = ;code = 32 char = A;code = 65 char = ;code = 32 char = (;code = 40 char = R;code = 82 char = P;code = 80 char = A;code = 65 char = 3;code = 51 char = 2;code = 50 char = );code = 41 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = p;code = 112 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = m;code = 109 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = .;code = 46 char = ;code = 32 char = I;code = 73 char = n;code = 110 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = o;code = 111 char = r;code = 114 char = t;code = 116 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = m;code = 109 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = m;code = 109 char = p;code = 112 char = t;code = 116 char = o;code = 111 char = t;code = 116 char = h;code = 104 char = e;code = 101 char = c;code = 99 char = i;code = 105 char = n;code = 110 char = -;code = 45 char = i;code = 105 char = n;code = 110 char = d;code = 100 char = u;code = 117 char = c;code = 99 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = y;code = 121 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = R;code = 82 char = P;code = 80 char = A;code = 65 char = 3;code = 51 char = 2;code = 50 char = ;code = 32 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = r;code = 114 char = 2;code = 50 char = 1;code = 49 char = ;code = 32 char = i;code = 105 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = y;code = 121 char = ;code = 32 char = 2;code = 50 char = ;code = 32 char = m;code = 109 char = M;code = 77 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = .;code = 46 char = ;code = 32 char = I;code = 73 char = n;code = 110 char = ;code = 32 char = a;code = 97 char = d;code = 100 char = d;code = 100 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ,;code = 44 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = ;code = 32 char = s;code = 115 char = h;code = 104 char = o;code = 111 char = w;code = 119 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 = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = s;code = 115 char = ;code = 32 char = i;code = 105 char = m;code = 109 char = m;code = 109 char = u;code = 117 char = n;code = 110 char = o;code = 111 char = p;code = 112 char = r;code = 114 char = e;code = 101 char = c;code = 99 char = i;code = 105 char = p;code = 112 char = i;code = 105 char = t;code = 116 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = p;code = 112 char = u;code = 117 char = r;code = 114 char = i;code = 105 char = f;code = 102 char = i;code = 105 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = ,;code = 44 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = w;code = 119 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = ;code = 32 char = a;code = 97 char = s;code = 115 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = e;code = 101 char = l;code = 108 char = l;code = 108 char = ;code = 32 char = e;code = 101 char = x;code = 120 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = c;code = 99 char = t;code = 116 char = s;code = 115 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 = a;code = 97 char = n;code = 110 char = ;code = 32 char = I;code = 73 char = C;code = 67 char = 5;code = 53 char = 0;code = 48 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = 0;code = 48 char = .;code = 46 char = 2;code = 50 char = -;code = 45 char = 0;code = 48 char = .;code = 46 char = 6;code = 54 char = ;code = 32 char = m;code = 109 char = M;code = 77 char = .;code = 46 char = ;code = 32 char = C;code = 67 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 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 = t;code = 116 char = h;code = 104 char = r;code = 114 char = o;code = 111 char = u;code = 117 char = g;code = 103 char = h;code = 104 char = ;code = 32 char = a;code = 97 char = ;code = 32 char = m;code = 109 char = i;code = 105 char = x;code = 120 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = n;code = 110 char = -;code = 45 char = c;code = 99 char = o;code = 111 char = m;code = 109 char = p;code = 112 char = e;code = 101 char = t;code = 116 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = v;code = 118 char = e;code = 101 char = ;code = 32 char = m;code = 109 char = e;code = 101 char = c;code = 99 char = h;code = 104 char = a;code = 97 char = n;code = 110 char = i;code = 105 char = s;code = 115 char = m;code = 109 char = ;code = 32 char = w;code = 119 char = i;code = 105 char = t;code = 116 char = h;code = 104 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = s;code = 115 char = p;code = 112 char = e;code = 101 char = c;code = 99 char = t;code = 116 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = A;code = 65 char = T;code = 84 char = P;code = 80 char = .;code = 46 char = ;code = 32 char = I;code = 73 char = n;code = 110 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = s;code = 115 char = t;code = 116 char = ,;code = 44 char = ;code = 32 char = 1;code = 49 char = 0;code = 48 char = -;code = 45 char = f;code = 102 char = o;code = 111 char = l;code = 108 char = d;code = 100 char = ;code = 32 char = h;code = 104 char = i;code = 105 char = g;code = 103 char = h;code = 104 char = e;code = 101 char = r;code = 114 char = ;code = 32 char = c;code = 99 char = o;code = 111 char = n;code = 110 char = c;code = 99 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = s;code = 115 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 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 = r;code = 114 char = e;code = 101 char = q;code = 113 char = u;code = 117 char = i;code = 105 char = r;code = 114 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = t;code = 116 char = o;code = 111 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = ;code = 32 char = a;code = 97 char = u;code = 117 char = t;code = 116 char = o;code = 111 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = y;code = 121 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = v;code = 118 char = i;code = 105 char = t;code = 116 char = r;code = 114 char = o;code = 111 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 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 = i;code = 105 char = n;code = 110 char = h;code = 104 char = i;code = 105 char = b;code = 98 char = i;code = 105 char = t;code = 116 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = c;code = 99 char = s;code = 115 char = ;code = 32 char = d;code = 100 char = e;code = 101 char = p;code = 112 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = d;code = 100 char = o;code = 111 char = u;code = 117 char = b;code = 98 char = l;code = 108 char = e;code = 101 char = -;code = 45 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = b;code = 98 char = r;code = 114 char = e;code = 101 char = a;code = 97 char = k;code = 107 char = ;code = 32 char = r;code = 114 char = e;code = 101 char = p;code = 112 char = a;code = 97 char = i;code = 105 char = r;code = 114 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = v;code = 118 char = i;code = 105 char = v;code = 118 char = o;code = 111 char = .;code = 46 char = ;code = 32 char = T;code = 84 char = h;code = 104 char = e;code = 101 char = s;code = 115 char = e;code = 101 char = ;code = 32 char = d;code = 100 char = a;code = 97 char = t;code = 116 char = a;code = 97 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = g;code = 103 char = g;code = 103 char = e;code = 101 char = s;code = 115 char = t;code = 116 char = ;code = 32 char = t;code = 116 char = h;code = 104 char = a;code = 97 char = t;code = 116 char = ;code = 32 char = w;code = 119 char = h;code = 104 char = i;code = 105 char = l;code = 108 char = e;code = 101 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = P;code = 80 char = K;code = 75 char = ;code = 32 char = d;code = 100 char = o;code = 111 char = e;code = 101 char = s;code = 115 char = ;code = 32 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = ;code = 32 char = a;code = 97 char = p;code = 112 char = p;code = 112 char = e;code = 101 char = a;code = 97 char = r;code = 114 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 = t;code = 116 char = h;code = 104 char = e;code = 101 char = ;code = 32 char = t;code = 116 char = a;code = 97 char = r;code = 114 char = g;code = 103 char = e;code = 101 char = t;code = 116 char = ;code = 32 char = o;code = 111 char = f;code = 102 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = -;code = 45 char = i;code = 105 char = n;code = 110 char = d;code = 100 char = u;code = 117 char = c;code = 99 char = e;code = 101 char = d;code = 100 char = ;code = 32 char = r;code = 114 char = a;code = 97 char = d;code = 100 char = i;code = 105 char = o;code = 111 char = s;code = 115 char = e;code = 101 char = n;code = 110 char = s;code = 115 char = i;code = 105 char = t;code = 116 char = i;code = 105 char = z;code = 122 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ,;code = 44 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = f;code = 102 char = f;code = 102 char = e;code = 101 char = i;code = 105 char = n;code = 110 char = e;code = 101 char = ;code = 32 char = c;code = 99 char = a;code = 97 char = n;code = 110 char = n;code = 110 char = o;code = 111 char = t;code = 116 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = ;code = 32 char = u;code = 117 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 = 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 = t;code = 116 char = i;code = 105 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = ;code = 32 char = b;code = 98 char = e;code = 101 char = t;code = 116 char = w;code = 119 char = e;code = 101 char = e;code = 101 char = n;code = 110 char = ;code = 32 char = A;code = 65 char = T;code = 84 char = M;code = 77 char = ,;code = 44 char = ;code = 32 char = A;code = 65 char = T;code = 84 char = R;code = 82 char = ;code = 32 char = a;code = 97 char = n;code = 110 char = d;code = 100 char = ;code = 32 char = D;code = 68 char = N;code = 78 char = A;code = 65 char = -;code = 45 char = ;code = 32 char = P;code = 80 char = K;code = 75 char = -;code = 45 char = d;code = 100 char = e;code = 101 char = p;code = 112 char = e;code = 101 char = n;code = 110 char = d;code = 100 char = e;code = 101 char = n;code = 110 char = t;code = 116 char = ;code = 32 char = s;code = 115 char = u;code = 117 char = b;code = 98 char = s;code = 115 char = t;code = 116 char = r;code = 114 char = a;code = 97 char = t;code = 116 char = e;code = 101 char = ;code = 32 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = s;code = 115 char = p;code = 112 char = h;code = 104 char = o;code = 111 char = r;code = 114 char = y;code = 121 char = l;code = 108 char = a;code = 97 char = t;code = 116 char = i;code = 105 char = o;code = 111 char = n;code = 110 char = ;code = 32 char = i;code = 105 char = n;code = 110 char = ;code = 32 char = v;code = 118 char = i;code = 105 char = v;code = 118 char = o;code = 111 char = .;code = 46 char = <;code = 60 char = b;code = 98 char = r;code = 114 char = /;code = 47 char = >;code = 62 result sql = Caffeine inhibits cell cycle checkpoints, sensitizes cells to ionizing radiation-induced cell killing and inhibits the protein kinase activity of two cell cycle checkpoint regulators, Ataxia-Telangiectasia mutated (ATM) and ATM- and Rad3-related (ATR). In contrast, caffeine has been reported to have little effect on the protein kinase activity of the DNA-dependent protein kinase (DNA-PK), which is essential for the repair of DNA double-strand breaks. Previously, we reported that DNA-PK phosphorylates Thr21 of the 32 kDa subunit of replication protein A (RPA32) in response to camptothecin. In this report we demonstrate that the camptothecin-induced phosphorylation of RPA32 on Thr21 is inhibited by 2 mM caffeine. In addition, we show that caffeine inhibits immunoprecipitated and purified DNA-PK, as well as DNA-PK in cell extracts, with an IC50 of 0.2-0.6 mM. Caffeine inhibited DNA-PK activity through a mixed non-competitive mechanism with respect to ATP. In contrast, 10-fold higher concentrations of caffeine were required to inhibit DNA-PK autophosphorylation in vitro and caffeine failed to inhibit DNA-PKcs dependent double-strand break repair in vivo. These data suggest that while DNA-PK does not appear to be the target of caffeine-induced radiosensitization, caffeine cannot be used to differentiate between ATM, ATR and DNA- PK-dependent substrate phosphorylation in vivo.
Publication: Nucleic Acids Res. 2004 ;32(6)::1967-72.
Publication Date: 2004
Study Author(s): Block, Wesley D;Merkle, Dennis;Meek, Katheryn;Lees-Miller, Susan P;
Institution: Department of Biological Sciences, Cancer Biology Research Group, University of Calgary, 3330 Hospital Drive N.W., Calgary AB, T2N 4N1, Canada.
Shortcut link to this study:
Caffeine inhibits cell cycle checkpoints, sensitizes cells to ionizing radiation-induced cell killing and inhibits the protein kinase activity of two cell cycle checkpoint regulators, Ataxia-Telangiectasia mutated (ATM) and ATM- and Rad3-related (ATR). In contrast, caffeine has been reported to have little effect on the protein kinase activity of the DNA-dependent protein kinase (DNA-PK), which is essential for the repair of DNA double-strand breaks. Previously, we reported that DNA-PK phosphorylates Thr21 of the 32 kDa subunit of replication protein A (RPA32) in response to camptothecin. In this report we demonstrate that the camptothecin-induced phosphorylation of RPA32 on Thr21 is inhibited by 2 mM caffeine. In addition, we show that caffeine inhibits immunoprecipitated and purified DNA-PK, as well as DNA-PK in cell extracts, with an IC50 of 0.2-0.6 mM. Caffeine inhibited DNA-PK activity through a mixed non-competitive mechanism with respect to ATP. In contrast, 10-fold higher concentrations of caffeine were required to inhibit DNA-PK autophosphorylation in vitro and caffeine failed to inhibit DNA-PKcs dependent double-strand break repair in vivo. These data suggest that while DNA-PK does not appear to be the target of caffeine-induced radiosensitization, caffeine cannot be used to differentiate between ATM, ATR and DNA- PK-dependent substrate phosphorylation in vivo.
PMID: 15060176