Contacts of the strand formed by residues 122 - 132 (chain A) in PDB entry 1XHU


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 PHE 122 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER      5.4     8.7    -      -       -      -
      3A  PHE*     3.6    20.2    -      +       +      -
    118A  VAL*     3.4     4.2    -      -       -      +
    119A  LYS      3.0    35.6    +      -       -      +
    120A  ASP      2.6    10.3    +      -       -      +
    121A  GLN*     1.3    75.7    -      -       -      +
    123A  TYR*     1.3    79.1    +      -       -      +
    124A  GLU*     5.3     2.0    -      -       +      -
    162A  ASP*     3.7    34.1    -      -       -      -
    163A  LEU      3.2    23.3    -      -       -      -
    164A  PHE      3.8     9.4    -      -       -      -
    165A  ASP*     3.4    30.3    -      -       +      -
    223A  ARG*     5.4     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 123 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59A  TYR*     3.4    29.9    +      +       -      -
     63A  LEU*     5.9     0.3    -      -       -      +
     80A  PHE      5.1     4.7    +      -       -      -
     85A  LEU*     3.2    33.4    -      -       +      +
     89A  LEU*     4.7     0.2    -      -       +      -
    116A  LEU*     4.6     9.9    -      -       +      -
    117A  LEU      3.6     2.5    -      -       -      +
    118A  VAL*     3.2    33.0    -      -       +      -
    121A  GLN*     4.1    25.7    +      -       -      -
    122A  PHE*     1.3    84.9    -      -       -      +
    124A  GLU*     1.3    61.6    +      -       -      +
    125A  LEU*     4.0    15.0    -      -       +      -
    163A  LEU*     2.9    34.2    +      -       +      +
    164A  PHE*     3.1     7.5    -      -       +      -
    165A  ASP      2.9    24.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 124 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2A  SER*     3.2    14.1    +      -       -      -
      3A  PHE*     2.7    35.6    +      -       +      -
      4A  ILE*     3.5    11.3    +      -       -      +
    115A  ILE      3.4     2.9    -      -       -      +
    116A  LEU*     3.5     2.1    -      -       -      -
    117A  LEU*     2.9    60.7    +      -       +      +
    122A  PHE*     5.4     1.6    -      -       +      -
    123A  TYR*     1.3    75.5    -      -       -      +
    125A  LEU*     1.3    65.2    +      -       -      +
    126A  LEU*     3.4    10.0    +      -       -      +
    165A  ASP*     3.6     7.4    -      -       +      +
    167A  ASN*     2.3    42.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 125 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85A  LEU*     5.0     2.9    -      -       +      -
     88A  LEU*     4.1    18.2    -      -       +      -
     89A  LEU*     4.5    12.1    -      -       +      -
    112A  THR*     4.0    22.0    -      -       +      -
    113A  ALA*     3.7    19.3    -      -       +      -
    115A  ILE      3.8     3.6    -      -       -      -
    116A  LEU*     3.3    23.3    -      -       +      -
    123A  TYR*     4.2    13.5    -      -       +      -
    124A  GLU*     1.3    72.3    -      -       -      +
    126A  LEU*     1.3    61.5    +      -       -      +
    127A  ASP*     3.9     1.5    +      -       -      +
    164A  PHE*     4.4    13.0    -      -       +      -
    165A  ASP      2.8    13.4    +      -       -      +
    166A  ILE*     3.7    30.7    -      -       +      +
    167A  ASN      3.0    27.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4A  ILE*     3.2    32.5    -      -       +      -
     41A  VAL*     5.1     3.4    -      -       +      -
     45A  LEU*     4.0    14.1    -      -       +      -
    113A  ALA*     4.8     0.4    -      -       -      -
    114A  ASP*     3.1     7.3    +      -       -      +
    115A  ILE*     2.8    59.6    +      -       +      +
    117A  LEU*     4.8     8.5    -      -       +      -
    124A  GLU*     3.4     6.7    +      -       +      +
    125A  LEU*     1.3    73.1    -      -       -      +
    127A  ASP*     1.3    64.3    +      -       -      +
    128A  VAL*     4.8     7.0    -      -       +      -
    167A  ASN*     3.5    21.3    -      -       +      +
    169A  LEU*     4.0    26.0    -      -       +      +
    187A  PHE*     4.4    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112A  THR      3.5    18.4    -      -       -      +
    113A  ALA*     5.2     1.6    -      -       -      -
    114A  ASP*     3.3    23.1    +      -       -      +
    125A  LEU      5.1     1.8    -      -       -      +
    126A  LEU*     1.3    76.0    -      -       -      +
    128A  VAL*     1.3    67.1    +      -       -      +
    129A  LYS*     2.9    36.3    +      -       -      +
    142A  ILE      5.0     1.1    -      -       -      -
    166A  ILE*     6.0     0.9    -      -       +      -
    167A  ASN      3.1     5.8    +      -       -      +
    168A  TYR*     3.4    27.8    -      -       +      +
    169A  LEU      3.1    22.2    +      -       -      -
      7G    C      5.8     3.2    -      -       -      +
      8H    G      4.2     4.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  GLU*     3.7    40.4    -      -       +      +
     41A  VAL*     5.1     7.9    -      -       +      -
    114A  ASP*     3.0    23.6    +      -       +      +
    115A  ILE*     5.3     3.8    -      -       +      -
    126A  LEU*     4.8    10.1    -      -       +      -
    127A  ASP*     1.3    79.1    -      -       -      +
    129A  LYS*     1.3    68.5    +      -       -      +
    130A  THR*     4.4    15.7    -      -       +      -
    169A  LEU*     3.2    27.8    -      -       +      +
    171A  VAL*     5.7     5.4    -      -       +      -
      8H    G      5.6     2.2    -      -       -      +
      9H    A      4.2     8.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 129 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127A  ASP*     2.9    22.7    +      -       -      -
    128A  VAL*     1.3    78.6    -      -       -      +
    130A  THR*     1.3    58.9    +      -       -      +
    131A  ARG*     4.0     0.9    -      -       +      -
    140A  PRO*     4.9    13.0    -      -       +      -
    141A  ASN      3.1    18.1    +      -       -      +
    142A  ILE*     2.6    46.4    +      -       +      -
    168A  TYR*     3.6    19.7    -      -       +      -
    169A  LEU      3.0     7.9    +      -       -      +
    170A  GLU*     3.4    12.4    -      -       +      +
    171A  VAL*     2.7    32.7    +      -       -      +
    212A  VAL*     4.3    18.8    -      -       +      -
      7G    C      6.2     1.6    -      -       -      -
      9H    A      3.8    18.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 130 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33A  ALA*     3.5     6.4    -      -       -      +
     34A  GLY*     3.5    37.7    +      -       -      +
     37A  PHE*     4.8     2.7    -      -       +      -
     38A  GLU*     5.3     2.0    -      -       +      +
    128A  VAL*     4.4    15.7    -      -       +      -
    129A  LYS*     1.3    74.8    -      -       -      +
    131A  ARG*     1.3    60.0    +      -       -      +
    171A  VAL*     3.0    20.2    -      -       +      +
    173A  TRP*     3.9    12.8    -      -       -      -
      9H    A      3.0    32.7    +      -       -      +
     10H    C      3.3    12.3    +      -       -      -
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Residues in contact with ARG 131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129A  LYS*     3.8     1.7    +      -       +      -
    130A  THR*     1.3    70.6    -      -       -      +
    132A  ASN*     1.3    61.9    +      -       -      +
    133A  ILE*     2.9    28.3    +      -       +      +
    135A  LYS      4.9     4.8    +      -       -      +
    136A  SER*     4.5    16.0    +      -       -      +
    137A  ALA      4.6     6.9    +      -       -      +
    170A  GLU*     3.6    25.3    +      -       +      +
    171A  VAL      2.8     8.5    +      -       -      -
    172A  ASP*     3.3    16.1    -      -       -      +
    173A  TRP*     2.7    37.3    +      -       -      -
    211A  HIS*     2.9    55.5    +      -       +      +
    213A  ARG*     4.0    21.3    -      -       -      +
    214A  ASP*     5.1     1.6    +      -       -      -
     10H    C      3.7    11.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  LEU*     4.5    17.9    +      -       -      +
    131A  ARG*     1.3    71.7    -      -       -      +
    133A  ILE*     1.3    51.9    +      -       -      +
    134A  SER*     2.8    37.0    +      -       -      -
    135A  LYS*     3.5    30.5    -      -       +      +
    173A  TRP*     3.3    45.2    -      -       +      +
    174A  GLU*     4.6     0.2    -      -       -      -
    175A  LEU      5.2     0.2    +      -       -      -
     10H    C      2.9    29.6    +      -       -      +
----------------------------------------------------------
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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