Contacts of the helix formed by residues 192 - 222 (chain A) in PDB entry 1S13


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with THR 192 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191A  MET*     1.3    77.5    -      -       -      +
    193A  PRO*     1.3    71.8    -      -       +      +
    194A  ALA*     3.8     7.4    +      -       -      +
    195A  VAL*     3.2    30.3    +      -       +      +
    196A  ARG*     2.8    27.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 193 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191A  MET      4.7     0.4    -      -       -      +
    192A  THR*     1.3    90.0    -      -       +      +
    194A  ALA*     1.3    61.1    +      -       -      +
    196A  ARG*     3.2     9.2    +      -       +      +
    197A  GLN*     2.9    39.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 194 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    192A  THR*     3.3     7.6    -      -       -      +
    193A  PRO*     1.3    79.7    -      -       -      +
    195A  VAL*     1.3    63.4    +      -       +      +
    197A  GLN*     3.3    16.4    +      -       -      +
    198A  ARG*     3.1    32.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 195 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  GLU*     3.8    32.3    -      -       +      +
    128A  LEU*     5.1     1.8    -      -       +      -
    191A  MET*     3.6    22.9    -      -       +      -
    192A  THR*     3.2    25.2    +      -       +      +
    194A  ALA*     1.3    74.1    -      -       +      +
    196A  ARG*     1.3    67.3    +      -       -      +
    198A  ARG*     3.2    26.1    +      -       -      +
    199A  VAL*     2.9    35.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 196 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  PRO      3.5     4.2    +      -       -      -
     11A  GLN*     2.6    38.0    +      -       -      +
     12A  ASP      3.7     1.0    -      -       -      -
     13A  LEU*     3.4    34.9    -      -       +      +
     16A  ALA*     3.4    26.4    -      -       -      +
    191A  MET*     3.9    24.7    -      -       +      +
    192A  THR      2.8    16.6    +      -       -      +
    193A  PRO*     3.5     9.0    -      -       +      +
    195A  VAL*     1.3    77.7    -      -       -      +
    197A  GLN*     1.3    62.6    +      -       +      +
    199A  VAL*     3.3     3.2    +      -       -      +
    200A  ILE*     3.1    30.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 197 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193A  PRO*     2.9    35.0    +      -       +      +
    194A  ALA*     3.6    16.2    -      -       -      +
    195A  VAL      3.2     0.2    -      -       -      -
    196A  ARG*     1.3    76.7    -      -       +      +
    198A  ARG*     1.3    59.5    +      -       +      +
    200A  ILE*     3.1    12.9    +      -       -      +
    201A  GLU*     2.8    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 198 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125A  GLU*     3.7    22.7    +      -       -      +
    127A  GLU*     3.6    26.5    +      -       -      -
    128A  LEU*     3.6    22.6    -      -       +      +
    194A  ALA*     3.1    19.7    +      -       -      +
    195A  VAL*     3.7    26.9    -      -       -      +
    197A  GLN*     1.3    78.0    -      -       +      +
    199A  VAL*     1.3    52.9    +      -       -      +
    201A  GLU*     3.3    10.6    +      -       +      +
    202A  GLU*     2.7    36.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 199 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  LEU*     4.3    21.8    -      -       +      -
     17A  LEU*     4.5     9.0    -      -       +      -
    127A  GLU      3.5    24.7    -      -       -      +
    128A  LEU*     3.7    10.8    -      -       +      -
    130A  VAL*     4.4    11.4    -      -       +      -
    131A  ALA*     3.4    21.8    -      -       +      +
    191A  MET*     3.9    19.1    -      -       +      -
    195A  VAL*     2.9    20.2    +      -       +      +
    196A  ARG*     3.4     8.3    -      -       -      +
    197A  GLN      3.2     0.2    -      -       -      -
    198A  ARG*     1.3    75.4    -      -       -      +
    200A  ILE*     1.3    63.4    +      -       -      +
    202A  GLU*     3.3     3.1    +      -       -      -
    203A  ALA*     3.1    19.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 200 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13A  LEU*     4.6     6.7    -      -       +      -
     16A  ALA*     4.0    25.4    -      -       +      +
     17A  LEU*     3.8    20.6    -      -       +      -
     20A  ALA*     3.5    30.5    -      -       +      -
     21A  THR*     5.0     0.8    -      -       +      +
    196A  ARG*     3.1    26.6    +      -       +      +
    197A  GLN*     3.1    10.2    +      -       -      +
    199A  VAL*     1.3    74.3    -      -       -      +
    201A  GLU*     1.3    70.4    +      -       -      +
    203A  ALA*     3.2    12.6    +      -       -      +
    204A  LYS*     3.2    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 201 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197A  GLN*     2.8    25.8    +      -       +      +
    198A  ARG*     3.3    11.6    +      -       +      +
    200A  ILE*     1.3    80.4    -      -       -      +
    202A  GLU*     1.3    58.0    +      -       -      +
    204A  LYS*     2.9    33.3    +      -       -      +
    205A  THR*     2.9    29.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 202 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ARG*     2.9    43.9    +      -       -      +
    121A  VAL*     4.4     0.7    -      -       -      -
    128A  LEU*     3.7    24.7    -      -       +      +
    131A  ALA*     3.7     9.8    -      -       +      +
    132A  HIS*     2.8    37.3    +      -       +      +
    198A  ARG      2.7    20.2    +      -       -      +
    199A  VAL      3.5     6.1    -      -       -      +
    200A  ILE      3.2     0.2    -      -       -      -
    201A  GLU*     1.3    70.1    -      -       -      +
    203A  ALA*     1.3    59.7    +      -       -      +
    205A  THR*     3.3    15.2    +      -       -      +
    206A  ALA*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 203 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  LEU*     3.6    26.5    -      -       +      -
     21A  THR*     3.8    14.8    -      -       +      -
    131A  ALA*     3.9     8.0    -      -       +      +
    134A  TYR*     4.8     3.4    -      -       +      -
    135A  THR*     4.0    17.5    -      -       -      +
    199A  VAL      3.1     6.7    +      -       -      +
    200A  ILE      3.4     9.6    -      -       -      +
    201A  GLU      3.2     0.4    -      -       -      -
    202A  GLU*     1.3    76.5    -      -       -      +
    204A  LYS*     1.3    62.1    +      -       -      +
    206A  ALA*     3.3     3.1    +      -       -      +
    207A  PHE*     3.0    31.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 204 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  ALA*     2.4    48.9    +      -       -      +
     21A  THR*     4.8     5.4    -      -       +      -
     23A  GLU*     5.2     7.0    +      -       -      +
     24A  VAL*     4.5    17.3    -      -       +      +
    200A  ILE*     3.5    14.6    -      -       +      +
    201A  GLU*     2.9    38.5    +      -       -      +
    203A  ALA*     1.3    75.5    -      -       -      +
    205A  THR*     1.3    62.1    +      -       -      +
    207A  PHE*     3.1    11.3    +      -       -      +
    208A  LEU*     2.9    29.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 205 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117A  ARG*     4.7     7.6    -      -       +      +
    201A  GLU*     2.9    14.8    +      -       -      +
    202A  GLU*     3.5    31.5    +      -       -      +
    204A  LYS*     1.3    75.1    -      -       -      +
    206A  ALA*     1.3    66.4    +      -       -      +
    208A  LEU*     3.0    14.4    +      -       +      +
    209A  LEU*     2.9    39.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 206 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114A  TYR*     4.7     3.4    -      -       -      +
    131A  ALA      4.9     0.2    -      -       -      +
    132A  HIS*     3.7    28.7    -      -       +      -
    135A  THR*     3.7    26.9    -      -       +      +
    202A  GLU      2.9    14.6    +      -       -      +
    203A  ALA*     3.5     9.2    -      -       -      +
    204A  LYS      3.2     0.2    -      -       -      -
    205A  THR*     1.3    75.1    -      -       -      +
    207A  PHE*     1.3    63.6    +      -       -      +
    209A  LEU*     3.2     8.0    +      -       -      +
    210A  ASN*     2.8    29.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 207 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  THR*     3.6    28.5    -      -       +      -
     24A  VAL*     3.3    38.8    -      -       +      +
     25A  HIS*     3.5    27.4    -      +       +      -
     28A  ALA*     4.5     6.1    -      -       +      -
    134A  TYR*     5.5     0.2    -      +       -      -
    135A  THR*     4.1    16.2    -      -       +      -
    203A  ALA      3.0    24.6    +      -       -      -
    204A  LYS      3.1     9.2    +      -       -      +
    206A  ALA*     1.3    80.0    -      -       -      +
    208A  LEU*     1.3    63.9    +      -       -      +
    210A  ASN*     3.0    10.6    +      -       -      +
    211A  ILE*     2.8    26.4    +      -       +      +
    300A  2FH      3.3    55.0    -      +       +      -
----------------------------------------------------------
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Residues in contact with LEU 208 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  VAL*     4.3    18.6    -      -       +      -
     27A  GLN*     4.7     7.0    -      -       -      +
    204A  LYS*     2.9    22.3    +      -       +      +
    205A  THR*     3.0    14.6    +      -       +      +
    207A  PHE*     1.3    74.7    -      -       -      +
    209A  LEU*     1.3    63.4    +      -       +      +
    211A  ILE*     3.1    18.7    +      -       +      +
    212A  GLN*     3.0    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 209 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ALA      5.1     3.4    -      -       -      +
    113A  ARG*     4.3    10.1    -      -       +      +
    114A  TYR*     3.8    50.7    -      -       +      +
    117A  ARG*     4.0    29.6    -      -       +      -
    132A  HIS*     4.3     6.5    -      -       -      +
    205A  THR*     2.9    27.7    +      -       +      +
    206A  ALA*     3.5     7.6    -      -       -      +
    207A  PHE      3.2     0.2    -      -       -      -
    208A  LEU*     1.3    76.1    -      -       +      +
    210A  ASN*     1.3    57.7    +      -       -      +
    212A  GLN*     3.5    25.4    -      -       -      +
    213A  LEU*     3.1    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 210 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57A  ILE*     4.8     0.5    -      -       -      +
    114A  TYR*     3.0    30.3    +      -       -      -
    136A  ARG*     3.0    20.8    +      -       -      -
    206A  ALA      2.8    24.4    +      -       -      -
    207A  PHE*     3.0     8.6    +      -       -      +
    209A  LEU*     1.3    73.6    -      -       -      +
    211A  ILE*     1.3    66.9    +      -       -      +
    213A  LEU*     3.3    12.4    +      -       -      +
    214A  PHE*     3.0    37.8    +      -       +      -
    300A  2FH      3.3    44.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 211 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  VAL*     3.8    11.0    -      -       +      +
     27A  GLN*     3.5    44.9    -      -       +      +
     28A  ALA*     3.9    21.1    -      -       +      +
     31A  ALA*     5.0     5.5    -      -       +      +
    207A  PHE*     2.8    18.3    +      -       -      +
    208A  LEU*     3.1    21.5    +      -       +      +
    210A  ASN*     1.3    77.9    -      -       -      +
    212A  GLN*     1.3    58.5    +      -       +      +
    214A  PHE*     3.2    11.3    +      -       -      +
    215A  GLU*     3.0    48.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 212 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  ALA*     4.1     3.0    -      -       +      +
    113A  ARG*     2.5    39.7    +      -       -      +
    208A  LEU*     3.0    27.3    +      -       -      +
    209A  LEU*     3.5    30.1    -      -       -      +
    211A  ILE*     1.3    74.4    -      -       +      +
    213A  LEU*     1.3    65.1    +      -       -      +
    215A  GLU*     3.6    16.8    -      -       +      +
    216A  GLU*     3.0    24.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 213 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  SER*     3.7    34.1    -      -       -      +
     57A  ILE*     4.0    20.0    -      -       +      -
    110A  ALA*     3.7    27.1    -      -       +      +
    111A  MET*     3.9    18.4    -      -       +      +
    114A  TYR*     4.6     7.2    -      -       +      -
    209A  LEU      3.1    19.0    +      -       -      +
    210A  ASN*     3.4    11.9    -      -       -      +
    211A  ILE      3.2     0.2    -      -       -      -
    212A  GLN*     1.3    77.3    -      -       -      +
    214A  PHE*     1.3    67.1    +      -       +      +
    216A  GLU*     3.2     3.0    +      -       -      +
    217A  LEU*     2.9    48.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 214 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  ALA*     4.7     4.9    -      -       +      -
     31A  ALA*     4.2    24.0    -      -       +      -
     33A  PHE*     3.5    30.1    -      +       +      +
     34A  MET*     3.0    40.4    -      -       +      -
     50A  VAL*     5.3     4.3    -      -       +      -
    136A  ARG*     6.4     0.2    -      -       -      -
    210A  ASN*     3.0    31.1    +      -       +      -
    211A  ILE*     3.4    12.3    -      -       +      +
    213A  LEU*     1.3    88.6    -      -       +      +
    215A  GLU*     1.3    65.2    +      -       -      +
    217A  LEU*     3.3     8.9    +      -       +      +
    218A  GLN*     3.0    23.0    +      -       -      +
    300A  2FH      3.5    31.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 215 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ALA*     5.3     8.1    -      -       +      +
     32A  GLU      6.3     0.4    -      -       -      +
    211A  ILE*     3.0    38.9    +      -       -      +
    212A  GLN*     3.6    16.6    -      -       +      +
    213A  LEU      3.2     0.2    -      -       -      -
    214A  PHE*     1.3    78.2    -      -       +      +
    216A  GLU*     1.3    62.8    -      -       -      +
    218A  GLN*     3.1    17.3    +      -       -      +
    219A  GLU*     3.2    23.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  THR*     2.5    32.9    +      -       -      +
    109A  PRO*     3.4    17.4    -      -       -      +
    110A  ALA*     2.7    39.0    +      -       +      +
    113A  ARG*     4.2     4.9    +      -       -      +
    212A  GLN      3.0    16.7    +      -       -      +
    213A  LEU*     3.2     7.6    +      -       -      +
    215A  GLU*     1.3    78.9    -      -       -      +
    217A  LEU*     1.3    61.1    +      -       -      +
    219A  GLU*     3.4    11.0    +      -       -      +
    220A  LEU*     3.2    36.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  PHE*     4.5    16.2    -      -       +      -
     49A  LEU*     4.1    24.1    -      -       +      +
     50A  VAL*     4.0    25.4    -      -       +      -
     53A  SER*     3.8    15.0    -      -       -      +
    111A  MET*     4.2    14.8    -      -       +      -
    213A  LEU*     2.9    44.1    +      -       +      +
    214A  PHE*     3.7     9.9    -      -       +      +
    215A  GLU      3.3     0.4    -      -       -      -
    216A  GLU*     1.3    79.3    -      -       -      +
    218A  GLN*     1.3    57.4    +      -       -      +
    220A  LEU*     3.8    20.1    -      -       +      +
    221A  LEU*     3.1    36.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32A  GLU*     3.4    37.3    +      -       +      +
     33A  PHE*     3.1    36.8    -      -       +      +
     36A  ASN*     3.8     8.2    +      -       -      +
    214A  PHE      3.0    12.1    +      -       -      +
    215A  GLU*     3.1    12.8    +      -       -      +
    217A  LEU*     1.3    77.6    -      -       -      +
    219A  GLU*     1.3    64.7    +      -       +      +
    220A  LEU      3.2     0.2    -      -       -      -
    221A  LEU*     3.6     6.4    +      -       -      +
    222A  THR*     3.0    44.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215A  GLU*     3.2    19.9    +      -       -      +
    216A  GLU*     3.4     9.7    +      -       +      +
    218A  GLN*     1.3    79.2    -      -       +      +
    220A  LEU*     1.3    59.7    +      -       +      +
    222A  THR*     2.8    29.6    -      -       -      +
    223A  HIS*     4.3    10.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LEU*     4.6    14.6    -      -       +      -
    108A  THR*     3.9    28.3    -      -       +      -
    216A  GLU*     3.2    34.2    +      -       +      +
    217A  LEU*     3.8    22.9    -      -       +      +
    218A  GLN      3.2     0.4    -      -       -      -
    219A  GLU*     1.3    76.9    -      -       +      +
    221A  LEU*     1.3    60.8    +      -       -      +
    222A  THR      2.8    14.4    +      -       -      -
    223A  HIS*     4.1    15.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  PHE*     3.5    35.9    -      -       +      -
     43A  THR*     4.1    12.3    -      -       +      +
     45A  ASP*     4.0     8.7    -      -       +      -
     46A  GLY*     3.5    25.8    -      -       -      +
     49A  LEU*     3.5    24.9    -      -       +      -
    217A  LEU*     3.1    19.1    +      -       +      +
    218A  GLN*     3.6     8.9    +      -       -      +
    220A  LEU*     1.3    78.9    -      -       -      +
    222A  THR*     1.3    63.3    +      -       +      +
    223A  HIS      4.0     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218A  GLN*     3.0    37.5    +      -       -      +
    219A  GLU*     2.8    21.4    +      -       -      +
    220A  LEU      2.8     1.4    +      -       -      -
    221A  LEU*     1.3    84.1    -      -       +      +
    223A  HIS*     1.3    67.8    +      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il