Contacts of the helix formed by residues 197 - 224 (chain M) in PDB entry 2I5N


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 CYS 197 (chain M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    702L  LDA      3.4     5.9    -      -       -      +
    194M  PHE*     3.1    19.1    +      -       +      +
    196M  TYR*     1.3    76.1    -      -       -      +
    198M  PRO*     1.3    68.4    -      -       -      +
    199M  TRP*     3.2    13.7    -      -       -      -
    200M  HIS*     3.1    29.4    +      -       +      +
    201M  GLY      3.2     8.7    +      -       -      -
    281M  GLY*     4.2    10.3    -      -       -      -
    285M  THR*     4.6     1.1    -      -       -      -
    292M  TRP*     3.7    45.2    -      -       +      +
    401M  BCB      4.3     6.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with PRO 198 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17H  TRP*     3.6    28.3    -      -       +      -
    702L  LDA      3.7    24.7    -      -       +      -
    196M  TYR      3.4     9.4    -      -       -      +
    197M  CYS*     1.3    82.9    -      -       -      +
    199M  TRP*     1.3    72.8    +      -       +      +
    201M  GLY      3.2     1.6    +      -       -      -
    202M  PHE*     2.8    32.7    +      -       +      -
    292M  TRP*     3.6    20.0    -      -       +      -
    295M  TRP*     3.5    25.1    -      -       +      -
    715M  UNL      3.4     4.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with TRP 199 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13H  ALA*     3.3    24.0    -      -       +      -
     16H  VAL*     3.5    12.3    -      -       +      +
     17H  TRP*     3.4    32.5    -      -       +      -
     20H  GLN*     3.1    39.7    +      -       -      +
    197M  CYS*     3.2     2.8    -      -       -      -
    198M  PRO*     1.3    91.9    -      -       +      +
    200M  HIS*     1.3    59.5    +      -       -      +
    202M  PHE*     3.8    11.3    -      +       -      +
    203M  SER*     3.0    28.6    +      -       -      -
    277M  SER*     3.3    20.8    -      -       -      +
    280M  VAL*     3.4    22.0    -      -       +      +
    281M  GLY*     3.4    19.1    -      -       -      -
    284M  LEU*     3.6    20.9    -      -       +      -
    292M  TRP*     3.7    23.1    -      +       -      -
    295M  TRP*     4.7     1.3    -      +       -      -
    401M  BCB      4.4     2.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 200 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401L  BCB      4.6     1.2    +      -       -      -
    194M  PHE*     3.1    30.0    +      +       +      +
    195M  TYR*     4.1     8.6    +      +       -      -
    197M  CYS*     3.1    22.2    +      -       +      +
    199M  TRP*     1.3    76.6    -      -       -      +
    201M  GLY*     1.3    56.7    +      -       -      +
    203M  SER*     3.3     2.4    +      -       -      -
    204M  ILE*     2.9    50.9    +      -       +      +
    401M  BCB      2.1   108.0    +      +       +      -
----------------------------------------------------------
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Residues in contact with GLY 201 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    701H  LDA      4.9     1.2    -      -       -      +
    401L  BCB      3.3    39.1    +      -       -      +
    702L  LDA      3.6     8.2    -      -       -      +
    197M  CYS      3.2     7.5    +      -       -      -
    198M  PRO      3.2     4.9    +      -       -      -
    200M  HIS*     1.3    78.4    -      -       -      +
    202M  PHE*     1.3    55.6    +      -       -      +
    204M  ILE*     3.4     1.7    +      -       -      +
    205M  GLY*     2.9    26.9    +      -       -      -
    715M  UNL      4.0     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 202 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17H  TRP*     4.1    19.5    -      +       -      -
     20H  GLN*     3.5    31.4    -      -       +      -
     21H  TRP*     3.4    49.6    -      +       -      -
     24H  ILE*     3.5    28.0    -      -       +      -
    701H  LDA      4.3    12.5    -      -       +      +
    198M  PRO*     2.8    32.1    +      -       +      +
    199M  TRP*     3.8    13.2    -      +       -      +
    200M  HIS      3.4     0.2    -      -       -      -
    201M  GLY*     1.3    69.7    -      -       -      +
    203M  SER*     1.3    63.1    +      -       -      +
    205M  GLY*     3.2     1.7    +      -       -      -
    206M  PHE*     2.9    31.6    +      +       +      -
    277M  SER*     3.6    18.6    -      -       -      +
    715M  UNL      3.8     7.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 203 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199M  TRP      3.0    18.7    +      -       -      -
    200M  HIS      3.7     3.6    -      -       -      -
    202M  PHE*     1.3    75.1    -      -       -      +
    204M  ILE*     1.3    57.1    +      -       -      +
    206M  PHE*     3.4     2.4    +      -       -      +
    207M  ALA*     2.8    28.9    +      -       -      +
    274M  VAL*     2.8    32.1    +      -       -      +
    277M  SER*     3.6     7.4    -      -       -      -
    278M  ALA*     3.7     4.4    -      -       -      +
    401M  BCB      3.4    38.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 204 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401L  BCB      3.1    39.3    -      -       +      +
    200M  HIS*     2.9    48.8    +      -       +      +
    201M  GLY      3.7     3.4    -      -       -      +
    203M  SER*     1.3    72.3    -      -       -      +
    205M  GLY*     1.3    59.9    +      -       -      +
    207M  ALA*     4.2     2.0    -      -       -      -
    208M  TYR*     2.8    65.1    +      -       +      +
    401M  BCB      3.3    41.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 205 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    701H  LDA      4.1    13.7    -      -       -      -
    401L  BCB      3.3    39.6    -      -       -      +
    201M  GLY      2.9    18.5    +      -       -      -
    202M  PHE      3.7     3.1    -      -       -      -
    204M  ILE*     1.3    72.4    -      -       -      +
    206M  PHE*     1.3    55.7    +      -       -      +
    209M  GLY*     2.8    25.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 206 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24H  ILE*     4.0    32.1    -      -       +      -
    701H  LDA      3.9    31.0    -      -       +      -
    202M  PHE*     2.9    29.6    +      +       -      +
    203M  SER      3.8     3.1    -      -       -      +
    205M  GLY*     1.3    74.6    -      -       -      +
    207M  ALA*     1.3    58.9    +      -       -      +
    209M  GLY      3.3     0.7    +      -       -      -
    210M  CYS*     2.8    32.4    +      -       -      -
    269M  PHE*     4.3     7.0    -      +       -      -
    270M  PHE*     3.6    47.3    -      +       -      +
    273M  MET*     3.5    37.7    -      -       +      -
    274M  VAL*     3.7     9.6    -      -       +      +
    277M  SER*     3.8    14.8    -      -       -      -
----------------------------------------------------------
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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
----------------------------------------------------------
    180L  LEU*     3.8    30.4    -      -       +      +
    181L  PHE*     6.3     0.4    -      -       +      -
    183L  ASN*     5.2     0.2    -      -       -      +
    184L  ALA*     5.1     6.1    -      -       +      +
    203M  SER      2.8    20.8    +      -       -      +
    204M  ILE*     3.1     4.4    +      -       -      +
    206M  PHE*     1.3    69.6    -      -       -      +
    208M  TYR*     1.3    65.7    +      -       +      +
    210M  CYS*     3.2    14.9    +      -       -      +
    211M  GLY      3.2     8.8    +      -       -      -
    274M  VAL*     3.6    16.1    -      -       +      +
    401M  BCB      3.9    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 208 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    180L  LEU*     4.0    18.6    -      -       +      -
    240L  ILE*     6.2     0.2    -      -       +      -
    241L  PHE*     5.6     4.3    -      +       -      -
    400L  BCB      3.5    30.1    -      -       +      +
    401L  BCB      3.4    46.7    -      +       +      +
    402L  BPB      3.4    45.8    -      -       +      +
    204M  ILE*     2.8    39.1    +      -       +      +
    207M  ALA*     1.3    72.9    -      -       +      +
    209M  GLY*     1.3    58.6    +      -       -      +
    211M  GLY*     3.1     4.0    +      -       -      +
    212M  LEU*     3.0    25.3    +      -       -      +
    401M  BCB      3.2    42.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 209 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401L  BCB      3.6    12.7    -      -       -      -
    205M  GLY      2.8    20.7    +      -       -      -
    206M  PHE      3.6     2.5    -      -       -      -
    207M  ALA      3.2     0.2    -      -       -      -
    208M  TYR*     1.3    77.1    -      -       -      +
    210M  CYS*     1.3    54.6    +      -       -      +
    212M  LEU*     3.6     5.8    -      -       -      +
    213M  LEU*     2.9    34.8    +      -       -      +
    270M  PHE*     3.8    19.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with CYS 210 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183L  ASN*     3.0    10.9    -      -       -      +
    184L  ALA*     3.9    29.6    -      -       +      -
    187L  LEU*     3.7    23.6    -      -       +      +
    206M  PHE      2.8    21.1    +      -       -      -
    207M  ALA      3.2     9.4    +      -       -      +
    209M  GLY*     1.3    71.8    -      -       -      +
    211M  GLY*     1.3    59.9    +      -       -      +
    213M  LEU*     4.6     0.2    -      -       -      -
    214M  PHE*     2.9    27.4    +      -       -      +
    270M  PHE*     3.7     4.3    -      -       -      -
    271M  SER*     3.5    37.2    -      -       -      -
    274M  VAL*     4.1     2.0    -      -       -      -
----------------------------------------------------------
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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
----------------------------------------------------------
    183L  ASN*     3.4    12.9    +      -       -      -
    237L  ALA*     3.4    10.4    -      -       -      +
    240L  ILE*     4.2     9.4    -      -       -      -
    402L  BPB      3.8    15.9    -      -       -      +
    207M  ALA      3.2     5.6    +      -       -      -
    208M  TYR*     3.1     8.4    +      -       -      -
    210M  CYS*     1.3    78.1    -      -       -      +
    212M  LEU*     1.3    61.1    +      -       -      +
    215M  ALA*     3.0    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 212 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    401L  BCB      3.9    28.3    -      -       +      -
    402L  BPB      3.5    91.6    -      -       +      +
    501L  MQ9      4.1    19.7    -      -       +      -
    208M  TYR      3.0    11.9    +      -       -      +
    209M  GLY*     3.6     9.2    -      -       -      +
    211M  GLY*     1.3    75.1    -      -       -      +
    213M  LEU*     1.3    58.0    +      -       +      +
    215M  ALA*     3.7     1.7    -      -       -      +
    216M  ALA*     2.8    39.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 213 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187L  LEU*     4.1    13.2    -      -       +      -
    501L  MQ9      3.9    55.6    -      -       +      -
    209M  GLY      2.9    17.6    +      -       -      +
    212M  LEU*     1.3    74.9    -      -       +      +
    214M  PHE*     1.3    56.8    +      -       -      +
    216M  ALA*     3.8     3.0    -      -       +      +
    217M  HIS*     2.7    33.7    +      -       -      +
    263M  VAL*     5.1     5.8    -      -       +      -
    266M  TRP*     4.0    23.1    -      -       +      +
    267M  GLY*     4.2     4.9    -      -       -      +
    270M  PHE*     3.7    44.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 214 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    183L  ASN*     3.4    30.3    -      -       -      +
    186L  ALA*     3.7    13.9    -      -       +      -
    187L  LEU*     3.5    45.9    -      -       +      +
    190L  HIS*     4.1    33.2    -      +       +      -
    229L  ILE*     3.8    20.6    -      -       +      -
    230L  HIS*     4.8     6.3    -      -       -      -
    233L  GLY*     3.7    27.1    -      -       -      +
    234L  LEU      4.1     3.5    +      -       -      -
    210M  CYS      2.9    14.4    +      -       -      +
    213M  LEU*     1.3    71.8    -      -       -      +
    215M  ALA*     1.3    61.7    +      -       -      +
    217M  HIS*     4.6     8.1    -      +       -      -
    218M  GLY*     2.8    32.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 215 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120L  ALA*     4.3     2.8    -      -       +      +
    234L  LEU*     3.6    22.0    -      -       +      +
    237L  ALA*     3.8    15.2    -      -       +      +
    238L  SER*     5.2     1.6    -      -       -      +
    402L  BPB      4.0    29.4    -      -       +      -
    211M  GLY      3.0    20.1    +      -       -      +
    212M  LEU      3.7     2.7    -      -       -      +
    214M  PHE*     1.3    76.0    -      -       -      +
    216M  ALA*     1.3    55.1    +      -       -      +
    219M  ALA*     3.0    32.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 216 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117L  VAL*     4.1     2.0    -      -       -      +
    402L  BPB      4.2    12.1    -      -       +      +
    501L  MQ9      4.1     7.4    -      -       +      -
    212M  LEU*     2.8    32.3    +      -       +      +
    213M  LEU*     3.8     6.1    -      -       +      +
    215M  ALA*     1.3    73.5    -      -       -      +
    217M  HIS*     1.3    52.3    +      -       -      +
    219M  ALA*     3.8     3.2    -      -       -      +
    220M  THR*     2.6    37.7    +      -       -      -
    250M  TRP*     3.8    27.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 217 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187L  LEU*     5.5     5.2    -      -       +      -
    190L  HIS*     4.0    11.7    -      +       -      -
    230L  HIS*     3.1    15.7    +      +       -      -
    500L  FE2      2.1    32.3    -      -       -      -
    501L  MQ9      2.8    33.0    +      -       +      +
    213M  LEU*     2.7    22.6    +      -       +      +
    214M  PHE*     4.5     8.3    -      +       -      +
    216M  ALA*     1.3    70.0    -      -       -      +
    218M  GLY*     1.3    64.5    +      -       -      +
    220M  THR*     3.6     0.3    -      -       -      -
    221M  ILE*     3.0    38.1    +      -       +      +
    232M  GLU*     3.0    11.4    +      -       -      -
    260M  ILE*     4.1     1.1    -      -       +      -
    263M  VAL*     3.7    19.3    -      -       +      +
    264M  HIS*     3.0    16.5    +      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 218 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230L  HIS*     3.4    37.2    -      -       -      +
    234L  LEU*     4.6     3.1    -      -       -      -
    214M  PHE*     2.8    25.1    +      -       -      -
    217M  HIS*     1.3    74.2    -      -       -      +
    219M  ALA*     1.3    59.4    +      -       -      +
    221M  ILE*     3.4     0.9    +      -       -      -
    222M  LEU*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 219 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116L  HIS*     3.5    39.2    -      -       +      +
    117L  VAL*     3.7    12.6    -      -       +      +
    120L  ALA*     4.1     7.9    -      -       +      -
    234L  LEU*     4.1    12.0    -      -       +      +
    215M  ALA      3.0    20.6    +      -       -      +
    216M  ALA*     3.9     0.7    -      -       -      +
    218M  GLY*     1.3    72.9    -      -       -      +
    220M  THR*     1.3    59.1    +      -       -      +
    222M  LEU*     3.4     1.9    +      -       -      -
    223M  ALA*     2.8    30.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 220 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113L  ILE*     6.4     1.1    -      -       +      -
    117L  VAL*     3.6    12.6    -      -       +      +
    501L  MQ9      3.6    21.7    +      -       +      +
    216M  ALA      2.6    29.6    +      -       -      -
    217M  HIS      3.3     5.1    +      -       -      -
    219M  ALA*     1.3    72.2    -      -       -      +
    221M  ILE*     1.3    63.7    +      -       +      +
    223M  ALA*     3.2     7.9    +      -       +      +
    224M  VAL*     3.1    22.2    +      -       +      +
    246M  ALA*     3.5    33.9    -      -       +      -
    249M  PHE*     6.0     1.3    -      -       +      -
    250M  TRP*     3.0    24.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 221 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227L  LEU*     4.8     2.9    -      -       +      -
    230L  HIS*     3.5    36.3    -      -       +      +
    501L  MQ9      4.7     7.4    -      -       +      -
    217M  HIS*     3.0    37.7    +      -       +      +
    218M  GLY      4.0     0.2    -      -       -      +
    220M  THR*     1.3    75.9    -      -       +      +
    222M  LEU*     1.3    62.7    +      -       -      +
    224M  VAL*     3.1    14.9    +      -       +      +
    225M  ALA*     3.0    21.0    +      -       -      +
    229M  GLY*     4.0     9.0    -      -       -      +
    230M  ASP*     3.8    28.9    -      -       +      +
    232M  GLU*     3.7     3.1    -      -       -      +
    243M  VAL*     5.4     1.3    -      -       +      -
    246M  ALA*     5.6     0.2    -      -       +      -
    260M  ILE*     3.7    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 222 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116L  HIS*     3.7    26.7    -      -       +      +
    227L  LEU*     3.7    26.5    -      -       +      +
    230L  HIS*     4.7     1.3    -      -       +      -
    231L  ARG*     4.1    33.0    -      -       +      +
    234L  LEU*     3.9    27.1    -      -       +      -
      2M  ASP*     4.6     1.7    -      -       -      +
      5M  THR*     3.3    46.9    -      -       +      +
    218M  GLY      3.0    18.9    +      -       -      +
    219M  ALA      3.8     2.2    -      -       -      +
    221M  ILE*     1.3    74.2    -      -       -      +
    223M  ALA*     1.3    62.2    +      -       -      +
    225M  ALA*     3.2    12.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 223 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113L  ILE*     3.4    21.4    -      -       +      +
    114L  GLY*     3.0    43.7    +      -       -      +
    116L  HIS*     3.5    15.8    +      -       +      +
    117L  VAL*     5.2     4.3    -      -       +      -
    219M  ALA      2.8    18.8    +      -       -      +
    220M  THR*     3.2     9.8    +      -       -      +
    222M  LEU*     1.3    76.0    -      -       -      +
    224M  VAL*     1.3    59.3    +      -       +      +
    225M  ALA      3.6     0.2    -      -       -      -
    226M  ARG*     5.1     4.9    +      -       -      +
    227M  PHE*     4.4     2.6    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 224 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113L  ILE*     3.8    25.4    -      -       +      -
    220M  THR*     3.1    17.4    +      -       +      +
    221M  ILE*     3.1    17.7    +      -       +      +
    223M  ALA*     1.3    78.7    -      -       -      +
    225M  ALA*     1.3    64.2    +      -       -      +
    226M  ARG      3.2     2.7    -      -       -      -
    227M  PHE*     3.1    25.3    +      -       +      +
    228M  GLY      3.5     0.2    +      -       -      -
    229M  GLY*     3.1    27.5    +      -       -      -
    242M  ALA*     3.4    29.2    -      -       +      +
    243M  VAL*     5.6     0.4    -      -       +      -
    245M  ARG*     4.4     0.7    -      -       +      -
    246M  ALA*     4.3    15.0    -      -       +      +
----------------------------------------------------------
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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