Contacts of the helix formed by residues 199 - 226 (chain M) in PDB entry 1K6L


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 ASN 199 (chain M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196M  LEU*     2.9    22.6    +      -       +      +
    197M  PHE      4.5     2.8    -      -       -      +
    198M  TYR*     1.3    74.5    -      -       -      +
    200M  PRO*     1.3    70.6    -      -       -      +
    201M  PHE*     3.1    24.9    +      -       -      +
    202M  HIS*     3.1    20.2    +      -       +      +
    203M  GLY*     3.1     9.7    +      -       -      -
    283M  GLY*     2.6    34.6    +      -       -      -
    284M  ILE*     5.0     0.2    -      -       -      +
    287M  SER*     3.1     2.4    +      -       -      -
    294M  TRP*     2.9    42.4    -      -       +      +
    502M  BCL      5.4     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 200 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17H  ILE*     4.2    23.6    -      -       +      -
    151L  TRP*     6.2     4.5    -      -       +      -
    198M  TYR      3.3    11.2    -      -       -      +
    199M  ASN*     1.3    88.5    -      -       -      +
    201M  PHE*     1.3    66.1    +      -       +      +
    203M  GLY*     3.4     2.3    +      -       -      +
    204M  LEU*     3.0    32.8    +      -       -      +
    294M  TRP*     3.8    17.3    -      -       +      -
    297M  TRP*     4.0    22.7    -      -       +      -
    701M  LDA      3.9    24.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 201 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13H  ALA*     4.6     2.5    -      -       +      -
     16H  ALA*     3.9     8.5    -      -       +      -
     17H  ILE*     3.6    47.6    -      -       +      -
     20H  PHE*     4.2    19.3    -      +       +      -
    199M  ASN*     3.1     8.2    +      -       -      +
    200M  PRO*     1.3    82.6    -      -       +      +
    202M  HIS*     1.3    55.2    +      -       -      +
    204M  LEU*     3.0     3.1    +      -       +      +
    205M  SER*     2.7    38.0    +      -       -      -
    279M  THR*     3.3    32.0    -      -       +      +
    282M  ILE*     3.8    19.5    -      -       +      -
    283M  GLY*     3.2    33.2    -      -       -      +
    286M  LEU*     3.8    25.6    -      -       +      -
    294M  TRP*     5.3     1.6    -      +       -      -
    502M  BCL      4.9     0.7    -      -       -      -
    800M  CDL      6.2     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 202 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    196M  LEU*     3.3    26.6    +      -       +      +
    197M  PHE*     3.7    19.2    -      +       -      -
    199M  ASN*     3.1    20.2    +      -       +      +
    201M  PHE*     1.3    78.3    -      -       -      +
    203M  GLY*     1.3    63.7    +      -       -      +
    205M  SER*     3.4     3.4    +      -       -      -
    206M  ILE*     3.0    48.9    +      -       +      +
    502M  BCL      2.2    90.8    +      +       +      -
----------------------------------------------------------
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Residues in contact with GLY 203 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304L  BCL      3.3    38.8    -      -       -      +
    197M  PHE*     5.7     3.8    -      -       -      -
    199M  ASN      3.1     8.6    +      -       -      -
    200M  PRO*     3.4     3.6    +      -       -      -
    201M  PHE      3.1     0.6    -      -       -      -
    202M  HIS*     1.3    81.5    +      -       -      +
    204M  LEU*     1.3    62.8    +      -       -      +
    206M  ILE*     3.5     3.5    +      -       -      +
    207M  ALA*     3.3    19.1    +      -       -      +
    701M  LDA      4.2     6.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 204 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17H  ILE*     3.7    26.5    -      -       +      -
     20H  PHE*     4.1    25.1    -      -       +      -
     21H  TRP*     3.9    25.4    -      -       +      +
     24H  LEU*     5.1     0.7    -      -       +      -
    200M  PRO      3.0    18.0    +      -       -      +
    201M  PHE*     3.3     2.5    -      -       +      +
    203M  GLY*     1.3    75.1    -      -       -      +
    205M  SER*     1.3    60.3    +      -       -      +
    207M  ALA*     3.0    24.9    +      -       -      +
    208M  PHE*     3.1    25.5    +      -       +      -
    279M  THR*     3.3    23.6    -      -       +      -
    701M  LDA      3.9    31.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 205 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201M  PHE      2.7    19.6    +      -       -      -
    202M  HIS*     3.5     9.6    -      -       -      -
    204M  LEU*     1.3    75.4    -      -       -      +
    206M  ILE*     1.3    59.9    +      -       -      +
    208M  PHE*     3.4     6.5    +      -       -      +
    209M  LEU*     3.1    22.7    +      -       -      +
    276M  VAL*     2.7    31.6    +      -       -      +
    279M  THR*     4.0     4.7    -      -       -      +
    280M  GLY*     3.7    15.7    -      -       -      -
    502M  BCL      3.5    23.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 206 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304L  BCL      3.2    45.8    -      -       +      +
    197M  PHE*     4.3     0.4    -      -       +      -
    202M  HIS*     3.0    44.2    +      -       +      +
    203M  GLY      3.7     4.3    -      -       -      +
    204M  LEU      3.2     0.2    -      -       -      -
    205M  SER*     1.3    74.4    -      -       -      +
    207M  ALA*     1.3    59.2    +      -       -      +
    209M  LEU*     3.2     2.2    +      -       -      +
    210M  TYR*     2.8    71.5    +      -       +      -
    502M  BCL      3.6    34.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 207 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304L  BCL      3.0    41.3    -      -       +      +
    203M  GLY      3.3    10.3    +      -       -      +
    204M  LEU*     3.0    15.6    +      -       +      +
    206M  ILE*     1.3    80.7    -      -       -      +
    208M  PHE*     1.3    54.3    +      -       +      +
    211M  GLY*     2.9    29.8    +      -       -      -
    272M  MET*     4.8     0.2    -      -       -      +
    701M  LDA      4.0    28.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 208 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20H  PHE*     4.2     6.7    -      +       -      -
     24H  LEU*     4.1    17.3    -      -       +      -
    204M  LEU*     3.1    32.8    +      -       +      -
    205M  SER*     3.4     3.3    +      -       -      +
    207M  ALA*     1.3    75.4    -      -       +      +
    209M  LEU*     1.3    60.1    +      -       -      +
    211M  GLY      3.7     0.4    -      -       -      -
    212M  SER*     2.8    32.9    +      -       -      -
    272M  MET*     3.5    27.7    -      -       -      +
    275M  LEU*     3.6    48.7    -      -       +      -
    276M  VAL*     3.4    18.3    -      -       +      +
    279M  THR*     3.8    15.7    -      -       -      -
    701M  LDA      3.3    37.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 209 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180L  PHE*     4.0    44.1    -      -       +      +
    181L  PHE*     4.3    11.7    -      -       +      -
    184L  ALA*     4.3     8.7    -      -       +      -
    302L  BCL      4.6     5.2    -      -       +      -
    205M  SER      3.1    14.3    +      -       -      +
    206M  ILE      3.2     8.3    +      -       -      +
    208M  PHE*     1.3    74.0    -      -       -      +
    210M  TYR*     1.3    69.4    +      -       +      +
    211M  GLY      3.0     0.9    -      -       -      -
    212M  SER*     3.1    14.2    +      -       -      -
    213M  ALA*     3.3    12.0    +      -       -      +
    276M  VAL*     3.4    25.1    -      -       +      +
    502M  BCL      4.0    46.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 210 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180L  PHE*     4.6    11.7    -      +       -      -
    302L  BCL      3.5    27.7    -      +       +      +
    304L  BCL      3.4    69.9    -      +       +      +
    402L  BPH      3.5    37.5    -      -       +      +
    206M  ILE*     2.8    34.7    +      -       +      +
    207M  ALA      3.7     4.3    -      -       -      +
    209M  LEU*     1.3    82.0    -      -       +      +
    211M  GLY*     1.3    58.0    +      -       -      +
    213M  ALA*     3.3     9.4    +      -       -      +
    214M  LEU*     3.0    24.4    +      -       -      +
    502M  BCL      3.5    31.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 211 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304L  BCL      3.9     9.6    -      -       -      -
    207M  ALA      2.9    19.1    +      -       -      -
    208M  PHE      3.8     1.6    -      -       -      -
    209M  LEU      3.0     0.2    -      -       -      -
    210M  TYR*     1.3    75.7    -      -       -      +
    212M  SER*     1.3    54.9    +      -       -      +
    213M  ALA      3.1     0.2    -      -       -      -
    214M  LEU*     3.0    10.5    +      -       -      +
    215M  LEU*     2.7    37.8    +      -       -      +
    272M  MET*     3.9    20.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 212 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180L  PHE      5.7     0.2    -      -       -      -
    183L  ASN*     3.2    17.1    +      -       -      -
    184L  ALA*     4.1    15.4    -      -       -      +
    187L  LEU*     3.6    18.0    -      -       -      +
    208M  PHE      2.8    22.6    +      -       -      -
    209M  LEU*     3.1     7.4    +      -       -      -
    211M  GLY*     1.3    77.0    -      -       -      +
    213M  ALA*     1.3    58.1    +      -       -      +
    216M  PHE*     2.8    28.1    +      -       -      +
    272M  MET*     3.5    16.7    +      -       -      +
    273M  ALA*     3.5    14.6    -      -       -      -
    276M  VAL*     4.1     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 213 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180L  PHE*     3.8    21.3    -      -       +      -
    183L  ASN*     3.4    14.1    -      -       -      +
    237L  SER*     3.2    15.5    +      -       -      +
    240L  ALA*     5.5     1.1    -      -       +      -
    402L  BPH      3.6    22.2    -      -       +      -
    209M  LEU      3.3     4.4    +      -       -      +
    210M  TYR      3.4     9.9    -      -       -      +
    211M  GLY      3.1     0.2    -      -       -      -
    212M  SER*     1.3    81.0    -      -       -      +
    214M  LEU*     1.3    53.6    +      -       -      +
    217M  ALA*     2.8    36.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 214 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    304L  BCL      3.6    40.8    -      -       +      -
    402L  BPH      3.0    72.4    -      -       +      +
    210M  TYR      3.0    14.5    +      -       -      +
    211M  GLY*     3.3    10.5    -      -       -      +
    213M  ALA*     1.3    76.3    -      -       -      +
    215M  LEU*     1.3    57.6    +      -       +      +
    217M  ALA*     3.4     2.6    -      -       -      +
    218M  MET*     3.0    49.4    +      -       -      +
    272M  MET*     6.5     0.2    -      -       +      -
    503M  U10      4.5    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 215 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187L  LEU*     4.4     8.5    -      -       +      -
    211M  GLY      2.7    20.2    +      -       -      +
    212M  SER*     3.9     2.7    -      -       -      +
    214M  LEU*     1.3    72.2    -      -       -      +
    216M  PHE*     1.3    58.3    +      -       -      +
    217M  ALA      3.0     1.3    -      -       -      -
    218M  MET*     2.9     8.6    +      -       +      +
    219M  HIS*     2.6    36.5    +      -       +      +
    265M  ILE*     4.1    22.7    -      -       +      +
    268M  TRP*     3.9    11.7    -      -       +      +
    269M  ALA*     3.5    40.4    -      -       +      +
    272M  MET*     4.4    15.5    -      -       +      -
    503M  U10      4.4    33.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 216 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183L  ASN*     3.5    22.9    -      -       -      +
    186L  ALA*     3.5    12.8    -      -       +      -
    187L  LEU*     3.4    52.4    -      -       +      +
    190L  HIS*     4.1    19.7    -      +       +      -
    229L  ILE*     3.4    24.9    -      -       +      -
    230L  HIS*     4.7     5.2    -      +       -      -
    233L  GLY*     3.6    22.7    -      -       -      -
    234L  LEU      4.3     2.3    +      -       -      -
    237L  SER*     3.8     3.1    -      -       -      +
    212M  SER      2.8    21.8    +      -       -      +
    215M  LEU*     1.3    71.6    -      -       -      +
    217M  ALA*     1.3    63.7    +      -       -      +
    219M  HIS*     4.5    18.8    -      +       +      -
    220M  GLY*     2.9    29.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 217 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120L  ALA*     4.6     8.6    -      -       +      +
    234L  LEU*     4.0     8.4    -      -       -      +
    237L  SER*     3.4    16.9    +      -       -      -
    238L  LEU*     5.0     1.6    -      -       +      -
    402L  BPH      3.9    29.6    -      -       +      -
    213M  ALA      2.8    21.5    +      -       -      +
    214M  LEU      3.4     5.6    -      -       -      +
    216M  PHE*     1.3    76.9    -      -       -      +
    218M  MET*     1.3    57.1    +      -       -      +
    221M  ALA*     3.0    33.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 218 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117L  ILE*     4.2     1.2    -      -       -      +
    402L  BPH      3.6    38.6    -      -       +      +
    214M  LEU*     3.0    33.9    +      -       +      +
    215M  LEU*     2.9    12.3    +      -       +      +
    217M  ALA*     1.3    75.3    -      -       -      +
    219M  HIS*     1.3    57.8    +      -       -      +
    221M  ALA*     4.0     2.1    -      -       -      +
    222M  THR*     2.5    35.2    +      -       -      -
    252M  TRP*     3.6    33.7    -      -       +      -
    256M  MET*     4.5     1.3    -      -       +      -
    503M  U10      3.4    59.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 219 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187L  LEU*     5.6     4.5    -      -       +      -
    190L  HIS*     3.7    17.0    -      +       -      -
    230L  HIS*     3.2     8.6    +      +       -      -
    215M  LEU*     2.6    24.2    +      -       +      +
    216M  PHE*     4.2    10.3    -      +       -      +
    218M  MET*     1.3    71.2    -      -       -      +
    220M  GLY*     1.3    65.9    +      -       -      +
    222M  THR*     3.1     2.6    +      -       -      -
    223M  ILE*     2.9    37.0    +      -       +      +
    234M  GLU*     3.2    11.4    -      -       -      -
    265M  ILE*     3.8    24.5    -      -       +      +
    266M  HIS*     3.0    11.1    +      +       -      -
    269M  ALA*     5.8     4.0    -      -       +      -
    500M   FE      2.1    32.2    -      -       -      -
    503M  U10      3.2    26.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 220 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230L  HIS*     3.7    32.5    -      -       -      +
    234L  LEU*     4.6     5.2    -      -       -      -
    216M  PHE*     2.9    20.1    +      -       -      -
    217M  ALA      4.1     0.2    -      -       -      -
    219M  HIS*     1.3    80.5    -      -       -      +
    221M  ALA*     1.3    61.5    +      -       -      +
    223M  ILE*     3.3     1.9    +      -       -      +
    224M  LEU*     3.1    26.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 221 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116L  HIS*     3.3    42.4    -      -       +      +
    117L  ILE*     3.5    14.8    -      -       +      +
    120L  ALA*     4.6     1.8    -      -       +      -
    234L  LEU*     3.9    15.8    -      -       +      +
    217M  ALA      3.0    19.6    +      -       -      +
    220M  GLY*     1.3    73.8    -      -       -      +
    222M  THR*     1.3    57.3    +      -       -      +
    224M  LEU*     3.5     2.4    +      -       -      -
    225M  ALA*     2.9    30.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 222 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113L  ILE*     6.5     0.9    -      -       +      -
    117L  ILE*     3.1    16.8    -      -       +      +
    218M  MET      2.5    23.5    +      -       -      -
    219M  HIS      3.5     3.8    -      -       -      -
    221M  ALA*     1.3    75.5    -      -       -      +
    223M  ILE*     1.3    63.0    +      -       -      +
    225M  ALA*     2.8    21.7    +      -       +      +
    226M  VAL*     3.0    16.7    +      -       +      +
    248M  ALA*     4.0    31.2    -      -       +      -
    251M  PHE*     5.7     1.1    -      -       +      -
    252M  TRP*     3.1    27.6    +      -       +      +
    503M  U10      3.5    17.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 223 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227L  LEU*     5.7     1.8    -      -       +      -
    230L  HIS*     3.6    31.6    -      -       +      +
    219M  HIS*     2.9    41.6    +      -       +      +
    220M  GLY      3.9     1.1    -      -       -      +
    222M  THR*     1.3    77.1    -      -       +      +
    224M  LEU*     1.3    57.4    +      -       -      +
    226M  VAL*     3.3    14.5    +      -       +      +
    227M  SER*     2.9    28.9    +      -       -      -
    231M  GLY*     4.3     7.1    -      -       -      +
    232M  GLU*     3.8    27.6    -      -       +      +
    234M  GLU*     3.6    13.0    -      -       -      +
    248M  ALA*     5.7     0.7    -      -       +      -
    262M  MET*     4.0    10.8    -      -       -      -
    503M  U10      4.0    16.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 224 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116L  HIS*     3.6    26.0    +      -       +      +
    227L  LEU*     4.1    16.8    -      -       +      -
    230L  HIS*     4.7     5.2    -      -       +      +
    231L  ARG*     3.9    23.1    -      -       +      +
    234L  LEU*     3.4    24.2    -      -       +      -
      4M  GLN      4.7     1.8    -      -       -      +
      5M  ASN*     3.4    25.0    -      -       +      +
      6M  ILE*     3.3    31.6    -      -       +      -
    220M  GLY      3.1    16.0    +      -       -      +
    221M  ALA      3.7     4.3    -      -       -      +
    223M  ILE*     1.3    75.6    -      -       -      +
    225M  ALA*     1.3    62.8    +      -       -      +
    227M  SER*     2.8    20.9    +      -       -      -
    228M  ARG*     4.6     1.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 225 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113L  ILE*     3.5    17.5    -      -       +      +
    114L  GLY      3.1    40.0    +      -       -      +
    116L  HIS*     3.6    13.9    -      -       +      +
    117L  ILE*     4.6     6.5    -      -       +      -
    221M  ALA      2.9    15.8    +      -       -      +
    222M  THR*     2.8    15.8    +      -       +      +
    224M  LEU*     1.3    76.6    -      -       -      +
    226M  VAL*     1.3    58.9    +      -       +      +
    228M  ARG*     3.5    14.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 226 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113L  ILE*     3.4    30.3    -      -       +      -
    222M  THR*     3.0    21.6    +      -       +      +
    223M  ILE*     3.7    17.7    -      -       +      +
    225M  ALA*     1.3    80.3    -      -       +      +
    227M  SER*     1.3    58.9    +      -       -      +
    228M  ARG      3.0     2.5    -      -       -      +
    229M  PHE*     2.9    35.8    +      -       +      +
    231M  GLY*     3.3    21.3    +      -       -      -
    244M  ALA*     4.1    24.7    -      -       +      +
    247M  ARG*     4.2     5.6    -      -       +      -
    248M  ALA*     4.4    13.2    -      -       +      +
    262M  MET*     6.3     0.9    -      -       +      -
----------------------------------------------------------
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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