Contacts of the strand formed by residues 103 - 112 (chain A) in PDB entry 2WQT


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 ARG 103 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  GLN      4.0     0.7    -      -       -      -
    102A  PRO*     1.3    77.8    -      -       -      +
    104A  ILE*     1.3    58.1    +      -       -      +
    139A  VAL*     3.3     3.3    -      -       -      -
    140A  VAL*     2.7    51.6    +      -       +      +
    147A  TRP*     3.2    64.8    -      -       -      +
    236A  MET*     3.8    34.1    -      -       +      +
    237A  VAL      3.2    18.2    -      -       -      +
    238A  ALA*     3.7    16.8    -      -       +      +
    239A  VAL*     4.0     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103A  ARG*     1.3    71.1    -      -       -      +
    105A  GLU*     1.3    61.8    +      -       -      +
    137A  LEU*     4.2    20.6    -      -       +      -
    138A  GLU      3.2     9.6    -      -       -      +
    139A  VAL*     3.5    31.6    -      -       +      -
    185A  MET*     3.9    12.8    -      -       +      +
    236A  MET*     3.3     4.1    -      -       -      -
    237A  VAL*     3.0    44.6    +      -       +      +
    239A  VAL*     3.5    15.0    -      -       +      -
    245A  PHE*     3.1    49.1    -      -       +      -
    257A  ALA*     6.1     0.7    -      -       +      -
    259A  PHE*     4.7     5.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104A  ILE*     1.3    76.2    -      -       -      +
    106A  ALA*     1.3    60.6    +      -       -      +
    107A  GLU*     3.0    18.7    -      -       -      +
    137A  LEU*     3.4     9.0    -      -       -      +
    138A  GLU*     2.8    42.4    +      -       +      +
    140A  VAL*     3.7    12.1    -      -       -      +
    185A  MET*     4.5     6.1    -      -       -      -
    232A  ALA*     3.4    26.6    -      -       +      +
    234A  GLY      4.2     7.0    -      -       -      +
    235A  PRO      5.2     0.2    -      -       -      -
    236A  MET*     3.8    22.6    +      -       +      +
   1264A  PO4      2.8    40.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  GLU*     1.3    73.6    -      -       -      +
    107A  GLU*     1.3    61.6    +      -       -      +
    136A  ALA      3.5     6.7    -      -       -      +
    137A  LEU*     4.2     2.2    -      -       +      -
    183A  MET*     3.8    37.1    -      -       +      +
    185A  MET*     4.5     6.2    -      -       -      +
    232A  ALA*     3.7     0.5    -      -       -      -
    233A  LEU*     2.9    32.7    +      -       +      +
    234A  GLY      5.2     0.8    +      -       -      -
    247A  ALA*     3.8    24.0    -      -       +      -
    249A  ILE*     4.7     2.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61A  VAL      4.5     1.4    -      -       -      +
    105A  GLU*     3.0    34.2    -      -       +      +
    106A  ALA*     1.3    79.0    -      -       -      +
    108A  ILE*     1.3    66.2    +      -       -      +
    136A  ALA*     2.8    41.8    +      -       +      +
    138A  GLU*     3.1    24.1    -      -       +      +
    229A  LEU*     3.3    22.1    -      -       +      +
    231A  GLY*     2.9    38.4    +      -       -      +
    232A  ALA*     3.5     7.9    +      -       -      +
    233A  LEU*     4.1     6.8    -      -       -      +
    249A  ILE*     3.7     7.3    -      -       -      +
   1264A  PO4      4.2     1.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107A  GLU*     1.3    76.2    -      -       -      +
    109A  ALA*     1.3    68.6    +      -       -      +
    110A  LEU*     4.1    15.9    -      -       +      -
    133A  VAL*     4.1    13.7    -      -       +      -
    134A  LEU      3.8     3.8    -      -       -      +
    178A  LEU*     4.2     8.5    -      -       +      -
    181A  CYS*     3.5    31.6    -      -       -      -
    204A  PRO*     3.9    23.1    -      -       +      -
    229A  LEU*     4.0     1.0    -      -       -      -
    230A  THR*     2.7    46.5    +      -       -      +
    231A  GLY      4.4     1.4    +      -       -      -
    233A  LEU*     4.2    18.4    -      -       +      +
    249A  ILE*     4.6     5.2    -      -       +      -
    252A  ILE*     3.8    18.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107A  GLU      4.0     1.0    +      -       -      -
    108A  ILE*     1.3    74.7    -      -       -      +
    110A  LEU*     1.3    64.3    +      -       -      +
    133A  VAL*     3.4     5.4    -      -       -      +
    134A  LEU*     2.8    47.7    +      -       +      +
    136A  ALA*     4.1     8.5    -      -       +      -
    166A  ILE*     5.0     2.0    -      -       +      -
    227A  ILE*     4.2    18.4    -      -       +      -
    228A  ILE      3.3     6.1    -      -       -      +
    229A  LEU*     3.7    22.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  ILE*     4.1    11.7    -      -       +      -
    109A  ALA*     1.3    83.1    -      -       -      +
    111A  VAL*     1.3    65.5    +      -       -      +
    112A  LEU*     5.1     4.3    -      -       +      -
    126A  LEU*     4.7     1.1    -      -       +      -
    130A  ILE*     4.4    20.9    -      -       +      -
    132A  TRP      3.5     3.1    -      -       -      +
    133A  VAL*     3.8    21.1    -      -       +      -
    178A  LEU*     5.2     3.6    -      -       +      -
    204A  PRO*     6.1     0.2    -      -       +      -
    205A  LEU*     3.7    30.7    -      -       +      -
    208A  ALA*     3.8    24.2    -      -       +      -
    226A  ASP      3.7     0.5    -      -       -      +
    227A  ILE*     3.3     6.8    -      -       -      +
    228A  ILE*     2.8    45.1    +      -       +      +
    230A  THR*     3.8    15.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  LEU*     1.3    77.7    -      -       -      +
    112A  LEU*     1.3    59.6    +      -       -      +
    130A  ILE*     3.6     4.3    -      -       -      +
    131A  GLU*     2.7    48.0    +      -       -      +
    132A  TRP*     2.9    28.0    +      -       +      +
    134A  LEU*     3.9    22.9    -      -       +      -
    225A  GLY*     3.9    22.7    -      -       -      +
    226A  ASP      3.4     2.7    -      -       -      -
    227A  ILE*     4.4    14.8    -      -       +      -
    124D  ASP*     4.6    15.7    -      -       +      +
    128D  ASN*     5.9     2.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 112 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110A  LEU*     5.1     8.1    -      -       +      -
    111A  VAL*     1.3    78.4    -      -       -      +
    113A  ASN*     1.3    59.2    +      -       -      +
    114A  ARG      3.9    13.2    -      -       -      +
    116A  LEU*     4.0    22.0    -      -       +      -
    126A  LEU*     5.2     5.4    -      -       +      -
    129A  ALA*     3.1    18.6    -      -       +      +
    130A  ILE*     5.1     3.8    -      -       +      -
    131A  GLU*     3.9    11.0    -      -       -      +
    222A  LEU*     3.8    33.9    -      -       +      -
    223A  ARG      3.9    16.4    -      -       -      +
    224A  THR*     4.0     0.3    +      -       -      -
    225A  GLY*     2.9    24.8    +      -       -      +
    226A  ASP*     3.2    21.7    +      -       +      +
    228A  ILE*     3.9    21.1    -      -       +      -
----------------------------------------------------------
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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