Contacts of the helix formed by residues 84 - 110 (chain A) in PDB entry 1ZMD


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 84 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ARG*     3.8    13.0    +      -       -      +
     83A  LEU*     1.3    72.7    -      -       -      +
     85A  LEU*     1.3    61.8    +      -       -      +
     86A  ASP*     3.2    12.5    +      -       -      +
     87A  LYS*     3.0    33.7    +      -       +      +
     88A  MET*     3.0    17.8    +      -       -      +
     75B  GLY*     2.9    18.5    +      -       -      +
     77B  GLU*     2.8    39.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  LEU*     3.5    21.7    +      -       +      -
     84A  ASN*     1.3    73.3    -      -       -      +
     86A  ASP*     1.3    65.2    +      -       -      +
     88A  MET*     3.8    25.1    -      -       +      +
     89A  MET*     3.0    34.4    +      -       +      +
    174A  LEU      3.7    10.5    -      -       -      +
    175A  LYS      3.3    28.7    -      -       -      +
    176A  LYS*     3.5    35.4    -      -       +      +
    177A  VAL*     4.2     4.0    -      -       +      +
    197A  TRP*     4.1    20.9    -      -       +      -
    200A  LEU*     4.3     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  ASN*     3.1     9.5    +      -       -      +
     85A  LEU*     1.3    79.0    -      -       -      +
     87A  LYS*     1.3    62.3    +      -       -      +
     89A  MET*     3.3     7.4    +      -       -      +
     90A  GLU*     3.1    22.5    +      -       -      +
    175A  LYS*     4.0    20.4    +      -       -      +
    176A  LYS*     3.6    22.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84A  ASN*     3.0    33.4    +      -       +      +
     86A  ASP*     1.3    76.0    -      -       -      +
     88A  MET*     1.3    64.1    +      -       -      +
     90A  GLU*     2.9    41.2    +      -       -      +
     91A  GLN*     3.1    19.6    +      -       -      +
     72B  ALA      3.2    11.7    -      -       -      +
     73B  SER*     3.3    19.6    -      -       -      +
     75B  GLY*     3.2    23.3    -      -       -      +
     77B  GLU*     5.4     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 88 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  LEU*     4.3    17.3    -      -       +      +
     59A  ASN*     3.6    41.0    +      -       +      +
     60A  SER*     4.2     3.4    -      -       -      +
     63A  TYR*     5.4     1.8    -      -       -      -
     83A  LEU*     4.1    11.4    -      -       +      -
     84A  ASN      3.0    14.6    +      -       -      +
     85A  LEU*     3.8    16.8    -      -       +      +
     87A  LYS*     1.3    77.4    -      -       -      +
     89A  MET*     1.3    62.7    +      -       +      +
     91A  GLN*     3.4     5.6    +      -       -      +
     92A  LYS*     3.3    18.0    +      -       -      +
    200A  LEU*     3.2    41.1    -      -       +      -
     74B  ARG      3.1    24.9    -      -       -      +
     75B  GLY*     3.8     1.1    -      -       -      -
     76B  ILE*     5.7     0.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 89 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  LEU*     3.9    15.0    -      -       +      -
     85A  LEU*     3.0    33.3    +      -       +      +
     86A  ASP*     3.7     6.7    -      -       -      +
     87A  LYS      3.2     0.2    -      -       -      -
     88A  MET*     1.3    76.7    -      -       +      +
     90A  GLU*     1.3    58.0    +      -       -      +
     92A  LYS*     3.3    24.8    -      -       -      +
     93A  SER*     3.0    31.5    +      -       -      +
    172A  LEU      3.4    28.0    -      -       -      +
    173A  SER*     4.3     4.5    -      -       -      +
    174A  LEU      3.8    13.5    -      -       -      +
    197A  TRP*     3.6    33.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 90 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86A  ASP      3.1    13.2    +      -       -      +
     87A  LYS*     2.9    46.9    +      -       -      +
     89A  MET*     1.3    75.0    -      -       -      +
     91A  GLN*     1.3    61.3    +      -       -      +
     93A  SER*     3.2     7.0    +      -       -      -
     94A  THR*     2.8    41.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 91 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55A  ALA*     3.7     8.3    -      -       -      +
     59A  ASN*     2.8    36.0    +      -       -      +
     87A  LYS      3.1     6.4    +      -       -      +
     88A  MET      3.6     9.0    -      -       -      +
     89A  MET      3.4     0.2    -      -       -      -
     90A  GLU*     1.3    76.7    +      -       -      +
     92A  LYS*     1.3    67.5    +      -       -      +
     94A  THR*     3.3     7.7    +      -       -      -
     95A  ALA*     3.2    22.1    +      -       -      +
     73B  SER*     3.6    26.2    +      -       -      +
     74B  ARG*     4.2    12.0    -      -       +      +
    395B  LYS      4.7     0.6    +      -       -      -
    396B  THR      3.1    24.2    +      -       -      +
    398B  ALA*     3.8    21.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  PRO*     3.6    40.0    -      -       +      +
     55A  ALA*     3.8    12.6    -      -       +      +
     56A  LEU*     3.9    19.1    -      -       +      -
     88A  MET      3.3     9.6    +      -       -      +
     89A  MET*     3.3    28.9    -      -       -      +
     90A  GLU      3.2     0.6    -      -       -      -
     91A  GLN*     1.3    86.6    +      -       -      +
     93A  SER*     1.3    73.3    +      -       -      +
     95A  ALA*     3.4     5.4    +      -       -      +
     96A  VAL*     3.2    27.0    +      -       +      +
    172A  LEU*     2.9    30.7    +      -       -      +
    173A  SER*     3.1    18.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with SER 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  MET*     3.0    18.4    +      -       -      +
     90A  GLU*     3.6     8.3    -      -       -      -
     92A  LYS*     1.3    85.5    +      -       -      +
     94A  THR*     1.3    64.8    +      -       -      +
     95A  ALA      3.1     2.0    -      -       -      -
     96A  VAL*     3.3     8.0    +      -       -      +
     97A  LYS*     2.9    25.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  GLU*     2.8    32.8    +      -       -      +
     91A  GLN*     3.7     8.2    -      -       -      -
     93A  SER*     1.3    73.3    -      -       -      +
     95A  ALA*     1.3    58.0    +      -       -      +
     97A  LYS*     3.9     5.9    -      -       -      +
     98A  ALA*     3.0    29.8    +      -       +      +
    395B  LYS*     6.4     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  ILE*     4.5     9.9    -      -       +      -
     55A  ALA*     5.2     0.7    -      -       +      -
     91A  GLN*     3.2    11.8    +      -       -      +
     92A  LYS*     3.6     9.9    -      -       -      +
     93A  SER      3.1     0.6    -      -       -      -
     94A  THR*     1.3    78.6    -      -       -      +
     96A  VAL*     1.3    60.6    +      -       -      +
     98A  ALA*     3.3     5.3    +      -       -      +
     99A  LEU*     2.9    34.5    +      -       +      +
    395B  LYS*     4.2    12.1    -      -       +      +
    396B  THR*     4.1    31.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  LEU*     3.4    26.9    -      -       -      +
     47A  ASN*     4.1    17.5    -      -       -      +
     51A  ILE*     3.9    11.2    -      -       +      -
     52A  PRO*     3.9    26.2    -      -       +      -
     92A  LYS*     3.2    17.6    +      -       +      +
     93A  SER*     3.3     9.2    +      -       -      +
     95A  ALA*     1.3    76.3    -      -       -      +
     97A  LYS*     1.3    57.5    +      -       -      +
     99A  LEU*     4.3     1.9    -      -       -      +
    100A  THR*     2.8    42.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  SER      2.9    17.0    +      -       -      +
     94A  THR*     3.9     6.1    -      -       -      +
     96A  VAL*     1.3    74.4    -      -       -      +
     98A  ALA*     1.3    66.8    +      -       -      +
    100A  THR*     3.0    17.4    +      -       -      +
    101A  GLY*     3.0    11.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     94A  THR*     3.0    21.5    +      -       +      +
     95A  ALA*     3.7     3.8    -      -       -      +
     97A  LYS*     1.3    79.6    -      -       -      +
     99A  LEU*     1.3    57.5    +      -       -      +
    101A  GLY*     3.3     1.8    +      -       -      -
    102A  GLY*     2.9    24.9    +      -       -      -
    395B  LYS*     3.8    28.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  LEU*     3.9    15.6    -      -       +      +
     51A  ILE*     3.9    39.9    -      -       +      -
     95A  ALA*     2.9    17.1    +      -       +      +
     96A  VAL*     4.3     3.1    -      -       -      +
     98A  ALA*     1.3    76.7    -      -       -      +
    100A  THR*     1.3    61.9    +      -       -      +
    102A  GLY*     3.1    11.6    +      -       -      +
    103A  ILE*     3.2    17.5    +      -       -      +
    389B  ALA      5.6     1.6    -      -       -      +
    390B  ALA*     5.3     7.6    -      -       -      +
    391B  ASN      5.1     1.3    -      -       -      +
    392B  SER*     4.1    29.8    -      -       -      +
    395B  LYS*     4.1    25.1    -      -       +      -
    396B  THR*     4.2     2.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  THR*     4.4    15.8    -      -       +      +
     41A  LEU*     3.4    25.3    +      -       -      +
     46A  LEU*     3.9    17.7    -      -       +      -
     47A  ASN*     3.4    28.0    -      -       -      +
     96A  VAL*     2.8    28.7    +      -       +      +
     97A  LYS*     3.0    17.2    +      -       -      +
     99A  LEU*     1.3    71.8    -      -       -      +
    101A  GLY*     1.3    63.5    +      -       -      +
    103A  ILE*     3.3    13.5    +      -       -      +
    104A  ALA*     3.5     9.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  LYS      3.0    15.0    +      -       -      -
     98A  ALA      3.7     4.0    -      -       -      -
    100A  THR*     1.3    75.5    +      -       -      +
    102A  GLY*     1.3    64.2    +      -       -      +
    104A  ALA*     3.3    10.2    +      -       -      +
    105A  HIS*     3.2    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  ALA      2.9    13.4    +      -       -      -
     99A  LEU*     3.1     7.5    +      -       -      -
    101A  GLY*     1.3    77.0    -      -       -      +
    103A  ILE*     1.3    63.5    +      -       -      +
    105A  HIS*     3.2     9.3    +      -       -      +
    106A  LEU*     3.0    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  TYR*     3.8    55.6    -      -       +      +
     41A  LEU*     3.8    20.2    -      -       +      -
     42A  GLY*     3.7    21.8    -      -       -      +
     46A  LEU*     3.4    28.3    -      -       +      -
     99A  LEU      3.2    12.2    +      -       -      +
    100A  THR*     3.3     6.5    +      -       -      +
    101A  GLY      3.3     0.4    -      -       -      -
    102A  GLY*     1.3    77.2    -      -       -      +
    104A  ALA*     1.3    57.2    +      -       -      +
    106A  LEU*     3.1    10.5    +      -       +      +
    107A  PHE*     2.9    35.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  LEU*     3.7    20.3    -      -       +      +
    100A  THR      3.5     5.3    +      -       -      +
    101A  GLY*     3.3    14.7    +      -       -      +
    102A  GLY      3.2     0.6    -      -       -      -
    103A  ILE*     1.3    77.7    -      -       -      +
    105A  HIS*     1.3    60.8    +      -       -      +
    107A  PHE*     3.3     6.0    +      -       -      +
    108A  LYS*     3.2    27.8    +      -       +      +
    114A  HIS*     6.0     1.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  GLY      3.2    10.2    +      -       -      +
    102A  GLY*     3.6    11.4    -      -       -      +
    104A  ALA*     1.3    77.2    -      -       -      +
    106A  LEU*     1.3    67.2    +      -       +      +
    108A  LYS*     3.2    12.5    +      -       -      +
    109A  GLN*     2.9    52.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19A  TYR*     4.6     2.0    -      -       +      -
     23A  ILE*     3.8    19.4    -      -       +      +
    102A  GLY      3.0    20.3    +      -       -      +
    103A  ILE*     3.5    14.1    -      -       +      +
    105A  HIS*     1.3    79.4    -      -       +      +
    107A  PHE*     1.3    67.3    +      -       -      +
    109A  GLN*     4.2    15.7    -      -       -      +
    110A  ASN*     2.8    33.4    +      -       -      +
    472B  ILE      3.9     8.3    -      -       -      +
    473B  ASN*     3.6    56.1    -      -       +      +
    474B  PHE*     3.7    14.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  SER*     4.8     0.4    -      -       -      -
     19A  TYR*     3.6    47.3    -      -       +      -
     22A  ALA*     4.1     5.6    -      -       +      -
     23A  ILE*     4.0    14.1    -      -       +      -
     34A  CYS*     3.8    33.4    -      -       +      -
     41A  LEU*     3.9    30.3    -      -       +      -
    103A  ILE*     2.9    17.9    +      -       +      +
    104A  ALA*     3.6    10.1    -      -       -      +
    105A  HIS      3.2     0.2    -      -       -      -
    106A  LEU*     1.3    76.8    -      -       -      +
    108A  LYS*     1.3    64.0    +      -       +      +
    110A  ASN      3.4     0.3    +      -       -      -
    111A  LYS      3.1     3.3    +      -       -      -
    112A  VAL*     2.7    54.7    +      -       +      +
    114A  HIS*     4.2    17.3    -      +       +      -
----------------------------------------------------------
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Residues in contact with LYS 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  ALA*     3.2    15.1    +      -       +      +
    105A  HIS*     3.2    14.3    +      -       +      +
    107A  PHE*     1.3    80.4    -      -       +      +
    109A  GLN*     1.3    61.8    +      -       -      +
    110A  ASN      3.3     0.9    +      -       -      -
    111A  LYS*     3.3    13.1    +      -       -      +
    112A  VAL      5.0     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  GLN*     5.8     1.4    -      -       -      +
    105A  HIS*     2.9    41.3    +      -       +      +
    106A  LEU*     3.7    10.4    -      -       -      +
    107A  PHE      3.4     0.2    -      -       -      -
    108A  LYS*     1.3    76.3    -      -       -      +
    110A  ASN*     1.3    73.3    +      -       -      +
    111A  LYS*     3.8     3.5    +      -       -      +
    470B  LYS*     6.4     0.4    -      -       -      +
    474B  PHE*     3.0    34.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  ILE*     4.0    19.0    -      -       +      +
     26A  ALA*     3.1    31.8    -      -       +      +
     27A  GLN*     3.1    34.4    +      -       -      +
    106A  LEU*     2.8    35.1    +      -       -      +
    107A  PHE      4.2     1.3    -      -       -      +
    108A  LYS      3.2     0.2    -      -       -      -
    109A  GLN*     1.3    97.2    +      -       -      +
    111A  LYS*     1.3    68.4    +      -       -      +
    112A  VAL*     3.3     7.0    -      -       +      -
    470B  LYS*     4.8     6.2    +      -       -      +
    472B  ILE      4.8     0.8    +      -       -      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


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

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

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