 
PFRMAT AL 
TARGET T0052 
AUTHOR 7169-6295-1599 
METHOD The target sequence exhibits a internal duplication. 
METHOD The corresponding halves (1-50; N half, 51-101; C half)  
METHOD and their repetitions (e.g., sequence made by N half plus  
METHOD N half) as well as T0052 sequence itself were threaded on  
METHOD the structural library constructed from rel.83 of PDB. We assume  
METHOD the answer structure keep the structural symmetry and  
METHOD its disulfide bonds. The results of secondary structure  
METHOD predictions (N half; beta-rich, C half; alpha-rich) did not  
METHOD coincide with our hypothesis, thus we neglected them and considered  
METHOD the fold may be either alpha-rich or beta-rich. The results of the  
METHOD threading were not significant in many cases (also in the  
METHOD inverse folding search), so we think the target's fold may  
METHOD be a new one or very difficult to detect. Yet among the  
METHOD structures having rather high compatibility scores, some  
METHOD structures meet the constraints of the structural symmetry  
METHOD and disulfide bonds. One of them is a DNA-binding protein  
METHOD (TATA-binding protein) consisting of two identical domains.  
METHOD Its monomeric structure is thin and probably unstable  
METHOD (T0052 is supposed to be monomeric, as reported  
METHOD in BBRC paper), so we synthesize the chimerical structure  
METHOD from the interacting domains of its dimeric structures.  
METHOD The structure is a kind of beta-sandwitches. 
MODEL 2 
PARENT 1PCZ_B 
P 51 L 117 
S 52 D 118 
N 53 V 119 
F 54 V 120 
I 55 A 121 
E 56 L 122 
T 57 T 123 
C 58 L 124 
R 59 P 125 
N 60 N 126 
T 61 C 127 
N 62 E 128 
L 63 Y 129 
A 64 E 130 
G 65 P 131 
S 66 E 132 
S 67 Q 133 
E 68 F 134 
L 69 P 135 
A 70 G 136 
A 71 V 137 
E 72 I 138 
C 73 Y 139 
K 74 R 140 
T 75 V 141 
R 76 K 142 
A 77 E 143 
Q 78 P 144 
Q 79 K 145 
F 80 S 146 
V 81 I 148 
S 82 L 149 
T 83 L 150 
K 84 F 151 
I 85 S 152 
N 86 S 153 
L 87 G 154 
D 88 K 155 
D 89 I 156 
H 90 V 157 
I 91 C 158 
A 92 S 159 
N 93 G 160 
I 94 A 161 
D 95 K 162 
G 96 S 163 
T 97 E 164 
L 98 A 165 
K 99 D 166 
Y 100 A 167 
E 101 W 168 
TER 
END 
