Contacts of the helix formed by residues 253 - 281 (chain E) in PDB entry 4LML


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 TYR 253 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115E  PHE      4.8     0.2    +      -       -      -
    116E  ARG      3.1    21.3    +      -       -      +
    117E  ARG*     4.7     0.2    -      -       -      -
    118E  TYR      4.2     9.4    +      -       -      +
    120E  PHE*     4.7    14.1    -      +       -      -
    252E  THR*     1.3    70.2    -      -       -      +
    254E  THR*     1.3    70.6    +      -       +      +
    256E  ALA*     3.0     4.7    +      -       -      +
    257E  ILE*     3.0    57.6    +      -       +      +
    306E  ASN*     4.7     9.2    +      -       -      -
    309E  LEU*     4.4     4.0    -      -       +      -
    310E  ALA*     4.1    33.5    +      -       +      +
    313E  PHE*     3.6    33.3    -      +       +      -
    314E  PHE*     3.8    31.9    -      +       +      -
----------------------------------------------------------
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Residues in contact with THR 254 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118E  TYR*     2.4    46.3    +      -       +      +
    119E  PRO*     3.6     8.3    -      -       +      +
    200E  ILE*     5.6     7.4    -      -       +      -
    201E  ILE*     4.9    13.9    -      -       +      -
    204E  MET*     5.6     3.4    -      -       +      -
    241E  VAL*     5.2    11.9    -      -       +      -
    252E  THR*     3.6     2.5    -      -       -      -
    253E  TYR*     1.3    81.6    -      -       +      +
    255E  GLY*     1.3    57.3    -      -       -      +
    257E  ILE*     3.4    21.4    -      -       +      +
    258E  ILE*     2.9    40.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 255 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  PRO*     4.8     7.5    -      -       -      +
    199B  ASN*     5.9     2.2    -      -       -      -
    251E  MET*     5.2     5.1    -      -       -      +
    252E  THR*     3.5    23.5    +      -       -      -
    253E  TYR      3.2     0.6    -      -       -      -
    254E  THR*     1.3    75.9    -      -       -      +
    256E  ALA*     1.3    63.7    +      -       -      +
    258E  ILE*     3.5    14.9    -      -       -      +
    259E  PHE*     3.5    18.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 256 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251E  MET*     4.9    12.3    -      -       +      -
    252E  THR      3.1    15.6    +      -       -      +
    253E  TYR*     3.0    13.8    +      -       -      +
    255E  GLY*     1.3    74.2    -      -       -      +
    257E  ILE*     1.3    68.0    +      -       -      +
    258E  ILE      3.0     1.1    -      -       -      -
    259E  PHE*     3.0     6.7    +      -       -      +
    260E  MET*     2.9    21.7    +      -       -      +
    309E  LEU*     3.8    24.5    -      -       +      -
    313E  PHE*     4.3     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 257 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201E  ILE*     4.9    11.9    -      -       +      -
    204E  MET*     4.2    22.0    -      -       +      -
    205E  LEU*     6.5     0.9    -      -       +      -
    253E  TYR*     3.0    39.4    +      -       +      +
    254E  THR*     3.4    25.1    -      -       +      +
    256E  ALA*     1.3    74.6    -      -       -      +
    258E  ILE*     1.3    61.4    +      -       -      +
    260E  MET*     3.4     9.1    -      -       +      +
    261E  ILE*     3.0    37.8    +      -       +      +
    302E  PHE*     6.3     0.7    -      -       +      -
    306E  ASN*     4.4    20.6    -      -       -      +
    309E  LEU*     3.6    22.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 258 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  PRO*     5.1     2.7    -      -       +      +
    199B  ASN*     5.0     5.2    -      -       -      +
    200E  ILE*     6.1     0.7    -      -       +      -
    204E  MET*     3.8    28.9    -      -       +      -
    234E  HIS*     3.2    26.4    -      -       +      +
    237E  PHE      4.7     2.5    -      -       -      +
    238E  ASN*     3.4    47.3    -      -       -      +
    241E  VAL*     5.0    12.6    -      -       +      -
    254E  THR*     2.9    23.2    +      -       +      +
    255E  GLY*     3.5    18.4    -      -       -      +
    256E  ALA      3.0     0.2    -      -       -      -
    257E  ILE*     1.3    77.8    -      -       -      +
    259E  PHE*     1.3    64.6    +      -       +      +
    261E  ILE*     3.5     2.4    +      -       -      -
    262E  TYR*     3.0    23.2    +      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 259 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197B  ILE*     5.8     1.1    -      -       +      -
    198B  PRO*     4.0    35.4    -      -       +      +
    202B  LEU*     3.5    37.5    -      -       +      -
    203B  PRO*     5.0     1.3    -      -       +      -
    206B  PHE*     3.5    22.4    -      +       -      -
    251E  MET*     6.5     1.1    -      -       +      -
    255E  GLY      3.7    13.5    -      -       -      +
    256E  ALA*     3.0     5.4    +      -       -      +
    258E  ILE*     1.3    79.3    -      -       +      +
    260E  MET*     1.3    68.1    +      -       -      +
    262E  TYR*     3.0    18.1    +      +       +      +
    263E  LEU*     2.9    45.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 260 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256E  ALA      2.9    12.5    +      -       -      +
    257E  ILE*     3.4    12.3    -      -       +      +
    259E  PHE*     1.3    78.2    -      -       -      +
    261E  ILE*     1.3    61.5    +      -       -      +
    263E  LEU*     2.9    25.0    +      -       +      +
    264E  PHE*     3.0    43.0    +      -       +      -
    302E  PHE*     4.1     7.4    -      -       +      -
    305E  ALA*     3.6    31.2    -      -       +      -
    306E  ASN*     3.4    30.1    -      -       -      +
    309E  LEU*     3.9    26.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 261 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204E  MET*     3.6    36.1    -      -       +      +
    205E  LEU*     5.6     2.5    -      -       +      -
    208E  LEU*     3.6    23.1    -      -       +      -
    234E  HIS*     3.3    26.0    -      -       +      +
    257E  ILE*     3.0    26.5    +      -       +      +
    258E  ILE      3.6     0.4    -      -       -      +
    259E  PHE      3.3     0.2    -      -       -      -
    260E  MET*     1.3    74.3    -      -       +      +
    262E  TYR*     1.3    63.7    +      -       -      +
    264E  PHE*     3.2     8.6    +      -       -      +
    265E  TYR*     3.0    50.7    +      -       +      -
    302E  PHE*     4.1    24.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 262 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198B  PRO      4.5     2.5    -      -       -      -
    203B  PRO*     3.6    38.5    -      -       +      +
    206B  PHE*     4.6    15.6    -      +       +      +
    207B  ILE*     5.4     3.6    -      -       +      -
    237B  PHE*     3.7    14.4    -      +       -      -
    231E  LEU*     4.3    23.1    -      -       +      -
    234E  HIS*     3.6    19.0    -      +       -      -
    235E  ILE*     3.6    28.6    -      -       +      +
    238E  ASN*     3.7    29.2    +      -       -      -
    258E  ILE      3.0    23.4    +      -       -      -
    259E  PHE*     3.0    30.4    +      +       +      +
    261E  ILE*     1.3    74.8    -      -       -      +
    263E  LEU*     1.3    61.3    +      -       -      +
    265E  TYR*     3.2     9.2    +      -       -      +
    266E  PHE*     3.0    20.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 263 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206B  PHE*     3.4    35.9    -      -       +      -
    259E  PHE*     2.9    37.0    +      -       +      +
    260E  MET*     2.9    16.2    +      -       +      +
    262E  TYR*     1.3    76.0    -      -       -      +
    264E  PHE*     1.3    65.9    +      -       +      +
    266E  PHE*     3.1     7.3    +      -       +      +
    267E  VAL*     3.0    36.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 264 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208E  LEU*     4.8     6.7    -      -       +      -
    212E  TRP*     3.9    23.0    -      +       +      -
    260E  MET*     3.0    36.0    +      -       +      +
    261E  ILE*     3.2    10.7    +      -       -      +
    263E  LEU*     1.3    78.8    -      -       +      +
    265E  TYR*     1.3    61.5    +      -       -      +
    267E  VAL*     3.3    15.2    -      -       +      +
    268E  ALA*     3.0    30.0    +      -       -      +
    298E  PHE*     3.9     8.1    -      +       +      -
    301E  VAL*     3.3    33.7    -      -       +      -
    302E  PHE*     3.3    48.2    -      +       +      -
    305E  ALA*     4.9     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 265 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  ILE*     5.0     1.3    -      -       +      -
    207E  ILE*     3.2    33.8    +      -       -      +
    208E  LEU*     3.5    13.0    +      -       +      -
    211E  SER*     3.5    14.8    -      -       -      -
    227E  VAL*     3.6    17.5    -      -       +      +
    230E  THR*     3.1    34.9    +      -       -      -
    231E  LEU*     3.2    40.8    -      -       +      -
    234E  HIS*     4.3     7.6    -      +       +      -
    261E  ILE*     3.0    49.0    +      -       +      -
    262E  TYR      3.4     8.1    -      -       -      +
    264E  PHE*     1.3    78.7    -      -       -      +
    266E  PHE*     1.3    62.4    +      -       -      +
    268E  ALA*     3.3     6.8    +      -       -      +
    269E  VAL*     3.0    28.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 266 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    206B  PHE*     3.9    29.4    -      +       +      -
    209B  PHE*     3.6    40.4    -      +       +      -
    210B  ILE*     3.4    34.7    -      -       +      +
    213B  THR*     6.4     0.7    -      -       -      -
    262E  TYR      3.0    12.2    +      -       -      +
    263E  LEU*     3.1    11.2    +      -       +      +
    265E  TYR*     1.3    77.5    -      -       -      +
    267E  VAL*     1.3    64.1    +      -       +      +
    269E  VAL*     3.3     5.3    +      -       +      +
    270E  ILE*     2.9    52.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 267 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263E  LEU*     3.0    18.5    +      -       +      +
    264E  PHE*     3.3    25.8    -      -       +      +
    266E  PHE*     1.3    79.5    -      -       +      +
    268E  ALA*     1.3    62.0    +      -       -      +
    270E  ILE*     3.5    12.5    -      -       +      +
    271E  GLU*     2.9    26.9    +      -       -      +
    298E  PHE*     3.6    21.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 268 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    211E  SER*     5.0     5.6    -      -       -      +
    212E  TRP*     5.4     5.8    -      -       +      -
    215E  PHE*     5.2     5.9    -      -       +      -
    227E  VAL*     4.2    17.5    -      -       +      -
    264E  PHE      3.0    20.6    +      -       -      +
    265E  TYR*     3.4     7.6    -      -       -      +
    267E  VAL*     1.3    75.3    -      -       -      +
    269E  VAL*     1.3    64.5    +      -       -      +
    271E  GLU*     3.0    13.0    +      -       -      +
    272E  VAL*     3.0    19.8    +      -       -      +
    298E  PHE*     3.5    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 269 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    210B  ILE*     3.9    37.7    -      -       +      -
    213B  THR*     3.8    34.1    -      -       +      +
    226B  LEU*     5.4     1.6    -      -       +      -
    227E  VAL*     3.7    26.4    -      -       +      +
    228E  VAL*     5.1     7.2    -      -       +      -
    231E  LEU*     5.9     0.9    -      -       +      -
    265E  TYR      3.0    11.3    +      -       -      +
    266E  PHE*     3.5     9.0    -      -       +      +
    268E  ALA*     1.3    74.3    -      -       -      +
    270E  ILE*     1.3    66.5    +      -       +      +
    272E  VAL*     3.2    10.1    -      -       +      +
    273E  THR*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 270 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213B  THR*     4.3    14.8    -      -       -      +
    266E  PHE*     2.9    46.1    +      -       +      +
    267E  VAL*     3.5    14.8    -      -       +      +
    269E  VAL*     1.3    78.2    -      -       +      +
    271E  GLU*     1.3    59.9    +      -       -      +
    273E  THR*     3.6     5.2    -      -       +      +
    274E  VAL*     2.9    37.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 271 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215E  PHE*     3.3    21.3    -      -       +      -
    267E  VAL      2.9    15.4    +      -       -      +
    268E  ALA*     3.0    11.2    +      -       -      +
    270E  ILE*     1.3    77.5    -      -       -      +
    272E  VAL*     1.3    92.6    +      -       -      +
    274E  VAL*     3.0    10.2    +      -       -      +
    275E  GLN*     2.9    26.0    +      -       -      +
    290E  ILE*     4.3    13.4    -      -       +      +
    291E  THR*     3.1    31.0    +      -       -      +
    294E  SER*     3.0    28.5    +      -       -      +
    298E  PHE*     4.4     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 272 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214E  ALA*     4.6    10.3    -      -       +      +
    215E  PHE*     5.2     4.5    -      -       +      -
    220E  TYR*     3.3    19.1    -      -       +      -
    223E  ASN*     3.5    44.0    -      -       +      +
    224E  VAL*     5.3     4.0    -      -       +      -
    227E  VAL*     4.6    11.9    -      -       +      -
    268E  ALA      3.0    17.1    +      -       -      +
    269E  VAL*     3.2    20.9    -      -       +      +
    271E  GLU*     1.3    89.0    +      -       -      +
    273E  THR*     1.3    63.2    +      -       -      +
    275E  GLN*     3.2    10.8    +      -       -      +
    276E  HIS      3.0    18.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 273 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213B  THR*     3.2    42.5    +      -       -      +
    216B  TRP*     3.7    24.6    -      -       +      +
    220E  TYR*     2.8    25.6    +      -       -      +
    269E  VAL*     3.0    20.6    +      -       -      +
    270E  ILE*     3.6     6.3    -      -       +      +
    272E  VAL*     1.3    76.5    -      -       -      +
    274E  VAL*     1.3    65.7    -      -       +      +
    276E  HIS*     3.1     4.5    +      -       -      +
    277E  TYR*     3.0    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 274 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216B  TRP*     6.3     3.6    -      -       +      -
    270E  ILE*     2.9    21.9    +      -       +      +
    271E  GLU*     3.0    12.5    +      -       -      +
    273E  THR*     1.3    76.5    -      -       +      +
    275E  GLN*     1.3    65.1    +      -       -      +
    277E  TYR*     4.2     4.8    -      -       -      +
    278E  LEU*     3.0    30.8    +      -       +      +
    290E  ILE*     3.5    39.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 275 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217E  SER      3.7    21.2    +      -       -      +
    218E  THR*     3.7    24.1    +      -       -      +
    219E  SER      5.1     2.2    -      -       -      -
    220E  TYR*     5.2     3.4    -      -       -      +
    223E  ASN*     4.0    12.1    +      -       -      +
    271E  GLU*     2.9    14.2    +      -       -      +
    272E  VAL*     3.2    15.4    +      -       -      +
    274E  VAL*     1.3    81.2    -      -       +      +
    276E  HIS*     1.3    57.7    +      -       -      +
    278E  LEU*     3.8     3.9    -      -       -      +
    279E  LYS*     2.9    38.7    +      -       +      +
    287E  ALA*     4.2    19.4    -      -       +      +
    290E  ILE*     5.8     1.6    -      -       +      -
    291E  THR*     2.6    39.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 276 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216B  TRP      3.6     6.1    -      -       -      -
    217B  SER*     3.1    42.6    +      -       -      -
    218B  THR*     3.5    13.2    +      -       -      -
    219B  SER*     4.3    10.3    -      -       -      -
    220E  TYR*     3.4    44.4    -      +       +      +
    272E  VAL      3.0     5.9    +      -       -      -
    273E  THR*     3.1     7.4    +      -       +      +
    275E  GLN*     1.3    76.4    -      -       -      +
    277E  TYR*     1.3    65.6    +      -       -      +
    279E  LYS*     3.0    15.7    +      -       -      +
    280E  VAL*     2.9    47.2    +      -       +      +
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Residues in contact with TYR 277 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216B  TRP*     3.5    46.0    -      +       +      +
    295B  ARG*     3.6    33.9    +      -       -      -
    273E  THR      3.0    13.7    +      -       -      +
    274E  VAL*     4.2     4.3    -      -       -      +
    276E  HIS*     1.3    76.8    -      -       -      +
    278E  LEU*     1.3    68.0    +      -       +      +
    280E  VAL*     3.3    13.4    -      -       +      +
    281E  GLU*     3.1    62.7    +      -       +      +
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Residues in contact with LEU 278 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    274E  VAL*     3.0    20.0    +      -       +      +
    275E  GLN      3.8     2.7    -      -       -      +
    277E  TYR*     1.3    84.4    -      -       +      +
    279E  LYS*     1.3    57.8    +      -       -      +
    281E  GLU*     3.3    14.4    +      -       +      +
    283E  GLN*     3.1    50.0    +      -       +      +
    286E  ARG*     3.5    20.9    -      -       +      +
    287E  ALA*     3.4    33.7    -      -       +      +
    290E  ILE*     3.8    18.8    -      -       +      -
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Residues in contact with LYS 279 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218E  THR*     3.6    41.9    +      -       +      -
    220E  TYR*     5.8     2.0    -      -       -      +
    275E  GLN*     2.9    29.2    +      -       +      +
    276E  HIS*     3.0    15.1    +      -       -      +
    278E  LEU*     1.3    77.6    -      -       -      +
    280E  VAL*     1.3    65.2    +      -       -      +
    281E  GLU      3.3     0.2    -      -       -      -
    282E  SER*     3.4    13.6    +      -       -      +
    283E  GLN      4.7     2.5    -      -       -      +
    284E  PRO*     4.4    24.3    -      -       +      +
    287E  ALA*     4.6     8.5    -      -       +      -
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Residues in contact with VAL 280 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216B  TRP      5.2     0.4    -      -       -      +
    218B  THR*     4.7    15.0    -      -       -      +
    276E  HIS*     2.9    46.5    +      -       +      +
    277E  TYR*     3.3    28.7    -      -       +      +
    279E  LYS*     1.3    80.6    -      -       +      +
    281E  GLU*     1.3    64.5    +      -       +      +
    282E  SER*     3.0    10.8    +      -       -      -
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Residues in contact with GLU 281 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277E  TYR*     3.1    62.7    +      -       +      +
    278E  LEU*     3.5    13.5    -      -       +      +
    279E  LYS      3.3     0.6    -      -       -      -
    280E  VAL*     1.3    81.3    -      -       -      +
    282E  SER*     1.3    70.2    +      -       -      +
    283E  GLN*     3.4     9.3    +      -       +      +
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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