Contacts of the helix formed by residues 76 - 87 (chain C) in PDB entry 2YVL


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 TYR 76 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65C  LEU*     3.6    23.1    -      -       +      -
     70C  ARG*     3.8    20.6    +      -       -      -
     73C  GLN*     3.0    33.3    +      -       -      -
     74C  ILE*     3.6    24.7    -      -       +      -
     75C  ILE*     1.3    74.4    -      -       -      +
     77C  PRO*     1.4    61.9    -      -       +      +
     78C  LYS*     3.1    11.2    -      -       +      +
     79C  ASP*     2.8    29.4    +      -       -      +
     80C  SER*     2.9    11.9    +      -       -      -
    237C  THR*     3.6    35.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61C  GLU*     3.6    41.5    -      -       +      +
     64C  ILE*     4.0    28.7    -      -       +      -
     65C  LEU*     3.8    23.1    -      -       +      -
     76C  TYR*     1.4    85.4    -      -       +      +
     78C  LYS*     1.3    62.3    +      -       -      +
     80C  SER*     3.1    11.6    -      -       -      +
     81C  PHE*     2.9    46.2    +      -       +      +
     82D  TYR*     4.5     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 78 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61C  GLU*     5.2     0.4    +      -       -      -
     76C  TYR*     3.1     7.1    -      -       +      +
     77C  PRO*     1.3    78.8    -      -       -      +
     79C  ASP*     1.3    75.3    +      -       -      +
     81C  PHE*     5.0     0.7    -      -       -      +
     82C  TYR*     4.2     6.8    +      -       -      +
    215C  ILE*     2.6    49.1    +      -       +      +
    216C  LEU*     5.0     0.4    -      -       -      +
    217C  HIS*     3.5    58.7    +      -       +      +
    234C  VAL*     4.6    14.6    -      -       +      +
    236C  HIS*     5.8     0.6    -      -       -      +
    237C  THR*     2.9    44.3    +      -       -      +
    238C  ALA      5.5     0.8    +      -       -      -
     82D  TYR*     4.8     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 79 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  ILE*     4.0    12.7    -      -       +      +
     76C  TYR      2.8    18.1    +      -       -      +
     78C  LYS*     1.3    95.0    +      -       -      +
     80C  SER*     1.3    58.4    +      -       -      +
     81C  PHE      3.3     0.4    -      -       -      -
     82C  TYR*     3.1     6.1    +      -       -      +
     83C  ILE*     2.9    39.8    +      -       +      +
    189C  LEU*     4.4     8.7    -      -       -      +
    215C  ILE*     3.9    15.6    +      -       -      +
    237C  THR*     2.6    30.3    +      -       -      +
    238C  ALA      4.4     4.4    +      -       -      +
    240C  LEU*     3.9    18.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 80 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  ILE*     5.0     0.5    -      -       -      +
     75C  ILE*     3.9    10.4    +      -       -      -
     76C  TYR      2.9    12.7    +      -       -      -
     77C  PRO*     3.1    23.4    -      -       -      +
     79C  ASP*     1.3    70.3    -      -       -      +
     81C  PHE*     1.3    66.5    +      -       -      +
     83C  ILE*     3.7    10.3    -      -       -      +
     84C  ALA*     3.0    27.7    +      -       -      +
    104C  ALA      4.7     0.9    +      -       -      -
    105C  LEU*     3.7    25.8    -      -       -      +
    108C  VAL*     3.4    23.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  LEU*     4.1    14.1    -      -       +      -
     61C  GLU*     3.9    33.7    -      -       +      -
     64C  ILE*     4.6     0.7    -      -       +      -
     77C  PRO*     2.9    29.5    +      -       +      +
     78C  LYS      5.0     0.2    -      -       -      +
     80C  SER*     1.3    80.7    -      -       -      +
     82C  TYR*     1.3    61.4    +      -       -      +
     85C  LEU*     3.9     9.0    +      -       -      +
    108C  VAL*     3.7    27.1    -      -       +      -
     81D  PHE*     3.8    21.0    -      -       -      +
     82D  TYR*     3.7    34.3    -      +       +      -
     85D  LEU*     3.5    55.1    -      -       +      +
     86D  LYS*     3.6     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78C  LYS      4.2     5.0    +      -       -      +
     79C  ASP      3.1     8.9    +      -       -      +
     81C  PHE*     1.3    78.5    -      -       -      +
     83C  ILE*     1.3    60.0    +      -       -      +
     85C  LEU      3.4     1.6    +      -       -      -
     86C  LYS*     2.9    61.6    +      -       +      +
    211C  GLU*     5.0     2.1    +      -       -      -
    213C  VAL*     4.4    10.6    -      -       +      +
    215C  ILE*     3.7    25.8    -      -       +      -
    240C  LEU*     4.6     1.6    -      -       +      -
    242C  PHE*     4.0    19.3    -      +       -      -
     61D  GLU*     2.5    31.1    +      -       -      -
     77D  PRO      4.5     7.2    -      -       -      -
     78D  LYS*     4.7     4.3    -      -       -      +
     81D  PHE*     3.6    33.2    -      +       +      -
     82D  TYR*     5.2     1.5    -      -       +      +
    217D  HIS*     3.5    31.4    +      +       +      +
    219D  HIS*     5.2     5.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75C  ILE*     4.2    10.5    -      -       +      -
     79C  ASP*     2.9    37.7    +      -       +      +
     80C  SER*     3.7     9.2    -      -       -      +
     82C  TYR*     1.3    75.4    -      -       -      +
     84C  ALA*     1.3    59.5    +      -       -      +
     86C  LYS*     3.3     0.7    +      -       -      +
     87C  LEU*     2.9    43.5    +      -       +      +
    105C  LEU*     4.0    15.3    -      -       +      -
    109C  LEU*     4.8     0.9    -      -       +      -
    163C  PHE*     3.6    46.7    -      -       +      -
    240C  LEU*     4.1    11.9    -      -       +      -
    242C  PHE*     3.9    24.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  SER      3.0    17.2    +      -       -      +
     81C  PHE      4.3     3.4    -      -       -      +
     83C  ILE*     1.3    81.3    -      -       -      +
     85C  LEU*     1.3    61.5    +      -       -      +
     87C  LEU      3.7     1.0    +      -       -      -
     89C  LEU*     3.4    39.2    +      -       +      +
    108C  VAL*     3.7    20.9    -      -       +      +
    109C  LEU*     4.4    12.1    -      -       +      -
    112C  VAL*     4.0    21.5    -      -       +      -
     85D  LEU*     4.6     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81C  PHE      3.9     2.6    +      -       -      +
     82C  TYR      3.4     1.8    +      -       -      -
     83C  ILE      3.3     0.2    -      -       -      -
     84C  ALA*     1.3    75.4    -      -       -      +
     86C  LYS*     1.3    60.1    +      -       -      +
     87C  LEU      3.2     1.6    -      -       -      -
     88C  ASN*     3.0    19.5    +      -       -      +
     89C  LEU      4.3     9.0    -      -       -      +
    112C  VAL*     4.1    17.7    -      -       +      -
     59D  THR*     5.7     0.5    -      -       -      -
     60D  LEU*     4.5    22.0    -      -       +      +
     61D  GLU      5.3     0.7    +      -       -      -
     81D  PHE*     3.6    63.6    -      -       +      +
     84D  ALA*     4.7     0.9    -      -       +      -
     85D  LEU*     3.9    18.8    -      -       +      -
    108D  VAL*     3.9    14.6    -      -       +      -
    111D  GLU*     5.1     4.5    -      -       +      -
    112D  VAL*     3.9    24.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 86 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  TYR*     2.9    47.7    +      -       +      +
     83C  ILE      3.6     3.6    -      -       -      +
     85C  LEU*     1.3    71.9    -      -       -      +
     87C  LEU*     1.3    57.2    +      -       -      +
     88C  ASN*     3.0    12.8    +      -       -      +
    185C  PRO*     4.7     3.3    -      -       -      +
    211C  GLU*     2.7    39.0    +      -       -      -
    242C  PHE*     3.6    42.4    -      -       +      -
     18D  LYS*     4.0     3.8    -      -       -      +
     59D  THR*     4.4    16.7    +      -       -      +
     61D  GLU*     2.7    34.4    +      -       +      +
     62D  GLU*     5.2     1.4    +      -       -      -
     81D  PHE*     3.5     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83C  ILE*     2.9    39.3    +      -       +      +
     84C  ALA      3.9     5.2    -      -       -      +
     85C  LEU      3.2     0.2    -      -       -      -
     86C  LYS*     1.3    72.7    -      -       -      +
     88C  ASN*     1.3    69.1    +      -       -      +
     89C  LEU*     3.3    17.2    +      -       +      +
     93C  LYS*     5.9     0.2    -      -       -      +
     95C  VAL*     4.7     1.8    -      -       +      -
    109C  LEU*     4.6     4.9    -      -       +      -
    160C  HIS      4.6     1.2    -      -       -      +
    161C  ALA*     3.7    24.1    -      -       +      +
    162C  ALA      3.8     9.4    -      -       -      +
    163C  PHE*     4.0    19.7    -      -       +      -
    185C  PRO*     3.8    20.1    -      -       +      +
    186C  VAL*     3.7    34.5    -      -       -      +
    187C  GLY      3.7     3.6    -      -       -      +
    242C  PHE*     4.2    12.1    -      -       +      -
----------------------------------------------------------
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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