Contacts of the strand formed by residues 125 - 136 (chain A) in PDB entry 1PNG


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 125 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15A  VAL      3.8     0.5    -      -       -      +
     16A  LYS*     3.4     5.2    -      -       -      +
     17A  ASN      2.8    32.4    +      -       -      +
     49A  ASN*     2.7    39.1    +      -       -      +
     56A  CYS*     3.5    19.9    -      -       -      -
     57A  ASP*     2.7    33.1    +      -       +      +
     58A  GLU*     3.9     5.9    -      -       -      +
     59A  TRP      3.2     8.5    +      -       -      -
     61A  ARG*     5.8     1.5    -      -       +      +
     83A  THR*     3.8    14.7    +      -       +      -
     84A  PRO*     2.8    32.1    +      -       -      +
     86A  TRP      4.2     1.6    -      -       -      +
     87A  VAL      2.8    21.8    +      -       -      -
    117A  THR*     4.2    15.7    -      -       +      +
    119A  THR*     5.3     0.2    -      -       -      -
    123A  LYS      5.0     0.2    -      -       -      -
    124A  GLY*     1.3    79.0    -      -       -      -
    126A  GLU*     1.3    59.7    +      -       -      +
    127A  TYR*     3.3    31.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 126 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14A  LYS*     3.7    35.2    -      -       -      +
     15A  VAL      3.1    11.7    -      -       -      +
     16A  LYS*     4.3    15.6    -      -       +      +
     49A  ASN*     2.8    26.9    +      -       -      +
     50A  GLU*     3.2    45.9    +      -       -      +
     56A  CYS*     5.6     0.6    -      -       -      +
    125A  ARG*     1.3    73.4    -      -       -      +
    127A  TYR*     1.3    65.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 127 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  PHE      4.0     1.0    -      -       -      +
     13A  ASP      3.8     0.3    -      -       -      -
     14A  LYS      2.9     4.9    +      -       -      -
     15A  VAL*     2.8    51.6    +      -       +      +
     17A  ASN*     3.3    14.1    -      -       -      -
     47A  ILE*     3.9    19.5    -      -       +      -
     48A  LYS      3.1     5.4    -      -       -      +
     49A  ASN*     3.9    25.8    -      -       +      -
     50A  GLU*     3.8     2.0    -      -       -      -
     63A  ALA*     4.1     3.3    -      -       +      +
     81A  PHE*     3.8    22.7    -      +       -      -
     83A  THR*     3.5    17.7    -      -       +      +
    115A  ILE*     3.8    23.8    -      -       +      -
    117A  THR*     2.7    28.8    +      -       -      +
    125A  ARG*     3.3    30.6    -      -       +      +
    126A  GLU*     1.3    79.5    -      -       -      +
    128A  SER*     1.3    63.1    +      -       -      +
    129A  VAL*     4.3     3.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 128 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  PHE      2.9     9.2    -      -       -      -
     13A  ASP*     3.8     6.8    +      -       -      -
     14A  LYS*     3.0    23.6    +      -       -      +
     46A  PHE      3.8     0.9    -      -       -      +
     47A  ILE*     3.7     1.4    -      -       -      -
     48A  LYS*     2.8    45.7    +      -       -      +
     50A  GLU*     2.8    23.3    +      -       -      -
    127A  TYR*     1.3    70.4    -      -       -      +
    129A  VAL*     1.3    62.2    +      -       -      +
    130A  ASP*     4.3     2.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 129 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10A  LYS*     4.1     0.3    -      -       -      -
     11A  THR*     2.7    42.6    +      -       -      +
     12A  PHE*     2.9    34.3    +      -       +      +
     45A  MET*     3.3    34.1    -      -       +      -
     46A  PHE      3.4    11.2    -      -       -      +
     47A  ILE*     4.5    11.7    -      -       +      -
     65A  VAL*     5.5     0.2    -      -       +      -
    113A  LEU*     5.7     0.4    -      -       +      -
    115A  ILE*     4.3    20.9    -      -       +      -
    127A  TYR*     4.6     0.7    -      -       +      -
    128A  SER*     1.3    80.9    -      -       -      +
    130A  ASP*     1.3    63.7    +      -       -      +
    131A  PHE*     3.8     7.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 130 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  ASN*     2.7    30.3    +      -       -      +
      9A  ILE      3.2    13.0    -      -       -      +
     10A  LYS*     4.0    14.1    -      -       +      -
     45A  MET*     3.8     1.4    -      -       -      -
     46A  PHE*     2.9    45.5    +      -       -      +
     48A  LYS*     4.6    15.0    +      -       -      +
     94A  ARG*     2.9    19.5    +      -       -      -
    128A  SER      5.0     2.3    -      -       -      +
    129A  VAL*     1.3    76.4    -      -       -      +
    131A  PHE*     1.3    65.1    +      -       -      +
    132A  ASP*     4.3     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 131 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7A  VAL      3.6     1.6    -      -       -      +
      8A  ASN*     3.2     5.0    -      -       -      -
      9A  ILE*     2.8    41.9    +      -       +      +
     11A  THR*     3.3    35.0    -      -       +      -
     33A  PHE*     3.6    33.4    -      +       +      -
     43A  ILE*     3.9    24.0    -      -       +      -
     44A  LYS      3.2     4.7    -      -       -      +
     45A  MET*     3.6    46.7    -      -       +      -
     78A  ILE*     4.5     7.9    -      -       +      -
    100A  VAL*     4.2     8.3    -      -       +      -
    107A  LEU*     4.5     5.4    -      -       +      -
    113A  LEU*     3.9    17.0    -      -       +      -
    129A  VAL*     3.8     6.5    -      -       +      -
    130A  ASP*     1.3    76.3    -      -       -      +
    132A  ASP*     1.3    64.0    +      -       -      +
    133A  ILE*     3.8     1.7    +      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 132 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6A  THR*     4.5    16.8    -      -       +      +
      7A  VAL      3.5     3.6    -      -       -      -
      8A  ASN*     2.8    27.2    -      -       -      +
     42A  THR      3.6     2.1    -      -       -      +
     43A  ILE*     3.3     4.0    -      -       -      -
     44A  LYS*     2.9    35.9    +      -       +      +
     46A  PHE*     3.6    15.8    -      -       +      -
     94A  ARG*     2.8    34.1    +      -       -      -
    131A  PHE*     1.3    71.1    -      -       -      +
    133A  ILE*     1.3    63.7    +      -       -      +
    134A  VAL*     3.9     5.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 133 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ASN      3.6     1.4    -      -       -      +
      6A  THR*     3.2     4.0    -      -       -      -
      7A  VAL*     2.7    42.3    +      -       +      +
      9A  ILE*     4.0    11.4    -      -       +      -
     33A  PHE*     4.0    18.6    -      -       +      -
     34A  PRO*     4.0    27.1    -      -       +      -
     37A  VAL*     6.6     0.4    -      -       +      -
     40A  VAL*     3.6    37.5    -      -       +      -
     42A  THR      3.6     2.5    -      -       -      +
     43A  ILE*     4.3    20.2    -      -       +      +
    107A  LEU      5.3     2.0    -      -       -      +
    131A  PHE*     4.6     3.1    -      -       +      +
    132A  ASP*     1.3    76.8    -      -       -      +
    134A  VAL*     1.3    61.5    +      -       -      +
    135A  TYR*     3.8    21.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 134 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ASN      3.3     8.7    -      -       -      +
      6A  THR*     4.0    20.0    -      -       +      +
     40A  VAL*     3.7     1.0    -      -       -      -
     41A  LYS*     2.7    43.9    +      -       +      +
     42A  THR*     2.9    31.9    +      -       +      +
     44A  LYS*     6.0     2.5    -      -       +      -
    132A  ASP*     4.7     8.3    -      -       +      +
    133A  ILE*     1.3    74.8    -      -       -      +
    135A  TYR*     1.3    62.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 135 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5A  ASN*     2.7    67.7    +      -       +      +
      7A  VAL*     3.5    21.5    -      -       +      +
     34A  PRO*     3.3    34.7    -      -       +      +
     36A  ASP      4.1    12.6    -      -       -      -
     39A  THR*     3.3    26.0    -      -       -      +
     40A  VAL*     3.5    26.5    -      -       +      -
     41A  LYS*     4.6     1.5    -      -       -      +
    133A  ILE*     3.8    20.9    -      -       +      +
    134A  VAL*     1.3    81.0    -      -       -      +
    136A  GLY*     1.3    58.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 136 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  THR*     2.8    37.9    +      -       -      +
     41A  LYS*     3.8    15.7    -      -       -      +
    134A  VAL      4.1     0.6    +      -       -      -
    135A  TYR*     1.3    76.2    -      -       -      +
    137A  THR*     1.3    63.7    +      -       -      -
    138A  PRO*     3.4     1.3    -      -       -      +
----------------------------------------------------------
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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