Contacts of the helix formed by residues 158 - 172 (chain A) in PDB entry 2YVE


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 SER 158 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156A  VAL*     3.5     4.3    +      -       -      -
    157A  LEU*     1.3    76.2    -      -       -      +
    159A  LYS*     1.3    59.9    -      -       -      +
    160A  SER*     3.4    10.2    +      -       -      -
    161A  LYS*     2.8    48.3    +      -       -      +
    162A  ARG*     2.8    28.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  SER*     1.3    74.2    -      -       -      +
    160A  SER*     1.3    58.4    +      -       -      +
    162A  ARG*     3.3    10.8    +      -       +      +
    163A  GLN*     2.9    38.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    158A  SER*     3.3     9.0    +      -       -      -
    159A  LYS*     1.3    79.6    -      -       -      +
    161A  LYS*     1.3    58.1    +      -       -      +
    163A  GLN*     3.4     7.8    +      -       -      +
    164A  ALA*     3.1    26.5    +      -       -      +
    128B  GLU*     2.6    36.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155A  ASP*     5.0     2.8    +      -       -      +
    156A  VAL      3.3    15.4    +      -       -      -
    157A  LEU*     3.4    26.5    -      -       +      +
    158A  SER*     2.8    49.4    +      -       -      +
    160A  SER*     1.3    73.6    -      -       -      +
    162A  ARG*     1.3    61.1    +      -       -      +
    164A  ALA*     3.3     4.5    +      -       -      +
    165A  MET*     3.0    32.9    +      -       -      +
    124B  THR*     3.7    33.3    +      -       -      +
    125B  ASP*     5.8     0.4    -      -       -      -
    127B  LEU*     4.2     8.7    -      -       +      +
    128B  GLU*     3.7    24.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89A  ALA*     2.8    40.2    +      -       +      +
     90A  GLU*     4.9     2.0    -      -       -      +
     91A  ASN*     2.8    41.2    +      -       -      +
    146A  LEU*     2.9    36.9    +      -       +      +
    149A  HIS*     3.7     7.7    -      -       -      +
    150A  ASP*     2.9    24.0    +      -       -      -
    157A  LEU*     3.0    35.9    +      -       +      +
    158A  SER      2.8    18.2    +      -       -      +
    159A  LYS*     3.6     8.5    -      -       +      +
    161A  LYS*     1.3    76.1    -      -       -      +
    163A  GLN*     1.3    58.1    +      -       -      +
    165A  MET*     3.3     1.2    +      -       -      +
    166A  LEU*     2.8    32.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    159A  LYS*     2.9    30.0    +      -       +      +
    160A  SER*     3.5     9.4    -      -       -      +
    161A  LYS      3.2     0.2    -      -       -      -
    162A  ARG*     1.3    76.3    -      -       -      +
    164A  ALA*     1.3    62.5    +      -       -      +
    166A  LEU*     3.3    24.0    +      -       -      +
    167A  GLU*     3.0    52.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160A  SER      3.1    16.8    +      -       -      +
    161A  LYS*     3.7     4.9    -      -       -      +
    162A  ARG      3.3     0.2    -      -       -      -
    163A  GLN*     1.3    77.2    -      -       -      +
    165A  MET*     1.3    62.1    +      -       +      +
    167A  GLU*     3.3    12.8    +      -       -      +
    168A  THR*     3.0    25.9    +      -       -      -
    127B  LEU*     4.2     2.2    -      -       +      +
    128B  GLU*     3.9    29.2    -      -       +      +
    134B  ARG*     3.9    16.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  LEU*     4.4     8.7    -      -       +      -
    157A  LEU*     4.8     3.1    -      -       +      -
    161A  LYS      3.0    21.4    +      -       -      +
    162A  ARG      3.9     2.9    -      -       -      +
    164A  ALA*     1.3    73.0    -      -       -      +
    166A  LEU*     1.3    61.4    +      -       -      +
    168A  THR*     3.1     9.9    +      -       -      -
    169A  ILE*     2.8    36.5    +      -       -      +
    127B  LEU*     3.9    26.5    -      -       +      -
    134B  ARG*     3.4    38.4    -      -       -      +
    137B  TYR*     3.9    19.1    -      -       +      -
    138B  LEU*     3.6    22.9    -      -       +      +
    141B  LEU*     3.8    26.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 166 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85A  VAL*     3.5    36.3    -      -       +      +
     86A  VAL*     3.9    22.9    -      -       +      -
     89A  ALA*     4.0    20.6    -      -       +      -
    146A  LEU*     4.2     6.9    -      -       +      +
    162A  ARG      2.8    22.0    +      -       -      +
    163A  GLN*     3.3    27.8    +      -       -      +
    165A  MET*     1.3    70.9    -      -       -      +
    167A  GLU*     1.3    65.2    +      -       +      +
    169A  ILE*     3.2     4.4    +      -       -      +
    170A  LEU*     3.0    42.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 167 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163A  GLN*     3.0    49.5    +      -       -      +
    164A  ALA*     3.6    10.2    -      -       -      +
    165A  MET      3.2     0.2    -      -       -      -
    166A  LEU*     1.3    77.7    -      -       +      +
    168A  THR*     1.3    58.5    +      -       -      +
    170A  LEU*     3.4     9.0    +      -       +      +
    171A  GLU*     3.0    36.8    +      -       -      +
   2005A  GOL      4.1    25.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164A  ALA      3.0    14.3    +      -       -      -
    165A  MET*     3.1    17.0    +      -       +      -
    167A  GLU*     1.3    73.9    -      -       -      +
    169A  ILE*     1.3    63.5    +      -       -      +
    171A  GLU*     3.2    32.9    +      -       -      +
    172A  LEU*     3.4     7.6    +      -       -      +
    134B  ARG*     3.2    46.6    +      -       +      +
    135B  ALA*     5.0     1.6    -      -       -      +
    138B  LEU*     4.2    21.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85A  VAL*     3.7    20.4    -      -       +      -
    139A  VAL*     3.8    31.1    -      -       +      +
    142A  ALA*     3.8    28.9    -      -       +      +
    143A  ALA*     4.0     4.0    -      -       -      +
    146A  LEU*     4.0    22.4    -      -       +      -
    165A  MET*     2.8    20.7    +      -       +      +
    166A  LEU*     3.2     4.7    +      -       -      +
    168A  THR*     1.3    76.1    -      -       -      +
    170A  LEU*     1.3    64.5    +      -       -      +
    172A  LEU*     3.0    20.3    +      -       +      +
    173A  ILE*     3.7     6.2    +      -       -      +
    138B  LEU*     3.7    24.2    -      -       +      -
    141B  LEU*     4.3     8.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82A  ARG*     3.8    46.3    +      -       +      +
     85A  VAL*     4.0    11.4    -      -       +      -
     86A  VAL*     4.6     9.4    -      -       +      -
    166A  LEU*     3.0    39.2    +      -       +      +
    167A  GLU*     3.8     4.5    -      -       +      +
    169A  ILE*     1.3    76.4    -      -       -      +
    171A  GLU*     1.3    62.4    +      -       -      +
    173A  ILE*     3.2    32.4    +      -       +      +
   2005A  GOL      3.3    35.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167A  GLU*     3.0    28.4    +      -       -      +
    168A  THR*     3.3    25.9    +      -       -      +
    169A  ILE      3.1     0.4    -      -       -      -
    170A  LEU*     1.3    76.4    -      -       +      +
    172A  LEU*     1.3    60.9    +      -       -      +
    173A  ILE      3.3     6.3    +      -       -      +
   2005A  GOL      5.6     6.7    -      -       -      -
    134B  ARG*     5.3     7.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  ALA*     5.0     2.7    -      -       -      +
    138A  LEU*     4.0    33.4    -      -       +      +
    139A  VAL*     3.9    23.0    -      -       +      +
    142A  ALA*     5.1     1.1    -      -       +      -
    168A  THR      3.4     6.8    +      -       -      +
    169A  ILE*     3.0    14.0    +      -       -      +
    171A  GLU*     1.3    80.1    -      -       -      +
    173A  ILE*     1.3    62.4    +      -       -      +
    174A  PRO*     3.4     7.4    -      -       -      +
    138B  LEU*     3.9    33.2    -      -       +      -
    172B  LEU*     4.1    22.0    -      -       +      -
----------------------------------------------------------
 Back to top of page


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