Contacts of the helix formed by residues 80 - 90 (chain D) in PDB entry 2NP5


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 ASP 80 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78D  GLY      3.8     0.6    +      -       -      -
     79D  GLY*     1.3    71.4    -      -       -      -
     81D  PRO*     1.3    76.5    -      -       -      +
     82D  ALA*     3.2    13.9    +      -       -      +
     83D  ARG*     3.1    71.5    +      -       +      +
     84D  ALA*     3.0    23.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 81 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75D  VAL*     3.9    20.2    -      -       +      -
     79D  GLY      3.5     6.5    -      -       -      +
     80D  ASP*     1.3    92.7    -      -       -      +
     82D  ALA*     1.3    56.9    +      -       -      +
     84D  ALA*     3.3     1.9    +      -       -      +
     85D  LEU*     2.9    36.9    +      -       -      +
    137D  VAL*     4.3    11.0    -      -       +      -
    141D  ILE*     4.0    42.2    -      -       +      -
    188D  LEU*     5.0     5.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 82 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80D  ASP*     3.2    12.1    +      -       -      +
     81D  PRO*     1.3    78.7    -      -       -      +
     83D  ARG*     1.3    64.2    +      -       +      +
     85D  LEU*     3.4     2.7    +      -       -      +
     86D  PHE*     3.0    23.7    +      -       -      +
    184D  ILE*     4.1    14.1    -      -       +      +
    188D  LEU*     3.6    27.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 83 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79D  GLY*     5.8     0.2    -      -       -      -
     80D  ASP*     3.1    49.2    +      -       +      +
     82D  ALA*     1.3    77.7    -      -       +      +
     84D  ALA*     1.3    57.6    +      -       -      +
     86D  PHE*     3.5     6.2    +      -       -      +
     87D  ALA*     2.8    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 84 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71D  ARG      4.0    19.6    -      -       -      +
     72D  LEU*     4.0     7.4    -      -       +      +
     74D  GLU*     4.9     5.8    -      -       +      -
     75D  VAL*     3.5    34.1    -      -       +      +
     79D  GLY      5.6     0.2    -      -       -      -
     80D  ASP      3.0    11.5    +      -       -      +
     81D  PRO      3.6     1.3    -      -       -      +
     83D  ARG*     1.3    73.7    -      -       -      +
     85D  LEU*     1.3    66.6    +      -       +      +
     87D  ALA*     3.3     6.0    +      -       -      +
     88D  ALA*     2.9    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 85 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72D  LEU*     4.1    11.0    -      -       +      -
     81D  PRO*     2.9    24.6    +      -       +      +
     82D  ALA      3.7     3.6    -      -       -      +
     84D  ALA*     1.3    76.8    -      -       +      +
     86D  PHE*     1.3    57.6    +      -       -      +
     88D  ALA*     3.7     0.3    -      -       -      +
     89D  MSE      2.8    35.7    +      -       -      +
    134D  LEU*     3.7    29.2    -      -       +      +
    137D  VAL*     4.4    18.6    -      -       +      -
    138D  LEU*     4.1    15.0    -      -       +      -
    153D  LEU*     4.2    14.4    -      -       +      -
    184D  ILE*     3.9    22.9    -      -       +      -
    187D  ILE*     5.1     2.0    -      -       +      -
    188D  LEU*     4.0    26.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 86 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82D  ALA      3.0    17.4    +      -       -      +
     83D  ARG*     3.7     6.5    -      -       -      +
     85D  LEU*     1.3    74.7    -      -       -      +
     87D  ALA*     1.3    63.7    +      -       -      +
     90D  SER*     2.8    54.6    +      -       -      -
    177D  GLU*     3.7    44.4    -      -       +      -
    180D  LEU*     3.6    23.5    -      -       +      +
    181D  ASP*     3.1    29.2    -      -       -      -
    184D  ILE*     3.5    13.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 87 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71D  ARG*     3.6    25.1    -      -       +      +
     83D  ARG      2.8    22.3    +      -       -      +
     84D  ALA*     3.3     6.5    +      -       -      +
     86D  PHE*     1.3    76.3    -      -       +      +
     88D  ALA*     1.3    60.4    +      -       -      +
     90D  SER*     3.2    16.3    +      -       -      -
     91D  GLN*     3.3    19.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 88 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68D  LEU*     3.3    35.8    -      -       +      +
     71D  ARG*     4.0    13.4    -      -       +      +
     72D  LEU*     3.5    29.6    -      -       +      -
     84D  ALA      2.9    18.0    +      -       -      +
     85D  LEU      3.7     2.2    -      -       -      +
     87D  ALA*     1.3    75.2    -      -       -      +
     89D  MSE      1.3    76.3    +      -       +      +
     91D  GLN*     3.3     8.5    +      -       -      +
     92D  LEU      4.3     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with MSE 89 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68D  LEU*     3.7    28.0    -      -       +      -
     72D  LEU*     5.6     0.7    -      -       +      -
     85D  LEU      2.8    23.7    +      -       -      +
     88D  ALA*     1.3    79.3    -      -       +      +
     90D  SER*     1.3    57.2    +      -       -      +
     91D  GLN      3.0     0.2    -      -       -      -
     92D  LEU*     3.0    33.4    +      -       +      +
     93D  LEU*     3.9     1.9    +      -       -      +
    130D  ILE*     4.1     8.5    -      -       +      -
    134D  LEU*     4.1    31.4    -      -       +      -
    153D  LEU*     3.9    28.9    -      -       +      -
    154D  LEU*     4.3    14.8    -      -       -      -
    157D  VAL*     3.7    24.1    -      -       +      +
    180D  LEU*     3.9    22.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 90 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86D  PHE*     2.8    48.4    +      -       -      -
     87D  ALA*     3.2    11.8    +      -       -      -
     88D  ALA      3.3     0.2    -      -       -      -
     89D  MSE      1.3    71.8    -      -       -      +
     91D  GLN*     1.3    68.4    +      -       -      +
     92D  LEU      3.2     0.4    -      -       -      -
     93D  LEU*     3.3    21.7    +      -       -      +
     95D  LEU*     3.8    15.6    -      -       -      +
     99D  ARG*     3.1    17.8    +      -       -      -
    180D  LEU*     3.8    10.7    -      -       -      +
----------------------------------------------------------
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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