REMARK  ---------------------------------------------------------- 
REMARK  Molecule : T0064AL166_1_3 
REMARK  Alignment model prepared for CASP3 experiment 
REMARK  by group : SB-FOLD 
REMARK  ---------------------------------------------------------- 
TARGET T0064  
AUTHOR 7397-8542-2481  
METHOD PSI-Blast searches showed that SinR is related to phage repressors and  
METHOD that SinI is homologous to the C-terminal 40 residues of SinR. These  
METHOD findings were confirmed by the abstract posted on the CASP web site. A  
METHOD 3D superposition of phage repressors was made in order to identify  
METHOD conserved features and SinR was aligned by maximum overlap of the  
METHOD hydrophobic positions. The C-terminal 40 residues of SinR and the entire  
METHOD SinI protein failed to yield significant matches to proteins in the pdb  
METHOD database. Secondary structure prediction using the JPred server  
METHOD indicated the existence of two helices in each protein. The first is  
METHOD proposed to dimerize between SinR and SinI in the same fashion and in a  
METHOD similar position as the C-terminal helix in lambda C1 repressor  
METHOD (antiparallel, left-handed, 25 deg crossing angle) and the second is  
METHOD proposed to dimerize in a parallel, right-handed way at approximately 30  
METHOD deg crossing angle (the N-terminal helix of CreI endonuclease is  
METHOD included as the template). The first helix is oriented parallel to the  
METHOD DNA and the second helix perpendicular.  
MODEL  1  
REMARK  ---------------------------------------------------------- 
REMARK  AL2TS service [v. 08/06/1998]: Adam Zemla, adamz@llnl.gov 
REMARK  ---------------------------------------------------------- 
REMARK  Coordinates assigned from PDB entry: 1af5 
ATOM      1  N   SER A  91      -2.389  16.994  28.332  1.00  0.00              
ATOM      2  CA  SER A  91      -3.430  15.985  28.588  1.00  0.00              
ATOM      3  C   SER A  91      -3.987  15.768  29.989  1.00  0.00              
ATOM      4  O   SER A  91      -5.174  15.458  30.123  1.00  0.00              
ATOM      5  N   LYS A  92      -3.152  15.887  31.019  1.00  0.00              
ATOM      6  CA  LYS A  92      -3.632  15.720  32.395  1.00  0.00              
ATOM      7  C   LYS A  92      -4.555  16.878  32.796  1.00  0.00              
ATOM      8  O   LYS A  92      -5.695  16.655  33.204  1.00  0.00              
ATOM      9  N   LYS A  93      -4.060  18.112  32.677  1.00  0.00              
ATOM     10  CA  LYS A  93      -4.850  19.295  33.027  1.00  0.00              
ATOM     11  C   LYS A  93      -5.612  19.837  31.810  1.00  0.00              
ATOM     12  O   LYS A  93      -6.446  20.733  31.940  1.00  0.00              
ATOM     13  N   GLN A  94      -5.254  19.351  30.621  1.00  0.00              
ATOM     14  CA  GLN A  94      -5.958  19.744  29.411  1.00  0.00              
ATOM     15  C   GLN A  94      -7.418  19.448  29.651  1.00  0.00              
ATOM     16  O   GLN A  94      -8.270  20.092  29.065  1.00  0.00              
ATOM     17  N   PHE A  95      -7.691  18.424  30.464  1.00  0.00              
ATOM     18  CA  PHE A  95      -9.061  18.055  30.846  1.00  0.00              
ATOM     19  C   PHE A  95      -9.660  19.183  31.682  1.00  0.00              
ATOM     20  O   PHE A  95     -10.834  19.494  31.556  1.00  0.00              
ATOM     21  N   ARG A  96      -8.846  19.770  32.553  1.00  0.00              
ATOM     22  CA  ARG A  96      -9.319  20.862  33.390  1.00  0.00              
ATOM     23  C   ARG A  96      -9.619  22.102  32.595  1.00  0.00              
ATOM     24  O   ARG A  96     -10.716  22.637  32.677  1.00  0.00              
ATOM     25  N   GLU A  97      -8.603  22.637  31.932  1.00  0.00              
ATOM     26  CA  GLU A  97      -8.800  23.849  31.162  1.00  0.00              
ATOM     27  C   GLU A  97      -9.991  23.781  30.193  1.00  0.00              
ATOM     28  O   GLU A  97     -10.530  24.820  29.845  1.00  0.00              
ATOM     29  N   PHE A  98     -10.410  22.583  29.773  1.00  0.00              
ATOM     30  CA  PHE A  98     -11.565  22.467  28.881  1.00  0.00              
ATOM     31  C   PHE A  98     -12.756  22.865  29.717  1.00  0.00              
ATOM     32  O   PHE A  98     -13.655  23.549  29.240  1.00  0.00              
ATOM     33  N   LEU A  99     -12.734  22.458  30.985  1.00  0.00              
ATOM     34  CA  LEU A  99     -13.812  22.788  31.900  1.00  0.00              
ATOM     35  C   LEU A  99     -13.881  24.289  32.084  1.00  0.00              
ATOM     36  O   LEU A  99     -14.841  24.928  31.676  1.00  0.00              
ATOM     37  N   ASP A 100     -12.857  24.864  32.693  1.00  0.00              
ATOM     38  CA  ASP A 100     -12.825  26.298  32.921  1.00  0.00              
ATOM     39  C   ASP A 100     -13.109  27.072  31.658  1.00  0.00              
ATOM     40  O   ASP A 100     -13.655  28.155  31.711  1.00  0.00              
ATOM     41  N   TYR A 101     -12.695  26.543  30.519  1.00  0.00              
ATOM     42  CA  TYR A 101     -12.936  27.251  29.276  1.00  0.00              
ATOM     43  C   TYR A 101     -14.411  27.212  29.014  1.00  0.00              
ATOM     44  O   TYR A 101     -15.032  28.256  28.838  1.00  0.00              
ATOM     45  N   GLN A 102     -14.966  26.005  28.983  1.00  0.00              
ATOM     46  CA  GLN A 102     -16.389  25.826  28.757  1.00  0.00              
ATOM     47  C   GLN A 102     -17.167  26.674  29.742  1.00  0.00              
ATOM     48  O   GLN A 102     -18.365  26.903  29.527  1.00  0.00              
ATOM     49  N   LYS A 103     -16.492  27.075  30.832  1.00  0.00              
ATOM     50  CA  LYS A 103     -17.071  27.918  31.868  1.00  0.00              
ATOM     51  C   LYS A 103     -16.866  29.373  31.487  1.00  0.00              
ATOM     52  O   LYS A 103     -17.806  30.053  31.072  1.00  0.00              
ATOM     53  N   TRP A 104     -15.647  29.869  31.665  1.00  0.00              
ATOM     54  CA  TRP A 104     -15.283  31.241  31.312  1.00  0.00              
ATOM     55  C   TRP A 104     -14.080  31.058  30.400  1.00  0.00              
ATOM     56  O   TRP A 104     -12.944  30.841  30.845  1.00  0.00              
END
