Contacts of the helix formed by residues 141 - 151 (chain J) in PDB entry 3KDO


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 141 (chain J).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140J  ALA*     1.3    94.1    -      -       +      +
    142J  GLY*     1.3    57.9    +      -       -      +
    144J  GLU*     4.2     0.5    +      -       -      +
    145J  GLY*     2.7    48.1    +      -       -      -
    146J  VAL*     4.3     5.8    -      -       +      -
    149J  MET*     3.7    27.8    -      -       +      -
    272J  ALA*     5.6     2.0    -      -       -      -
    275J  GLY*     3.3    32.5    -      -       -      -
    276J  LEU      3.7     7.9    -      -       -      -
    277J  ALA*     3.7    29.6    -      -       +      -
    311J  ASP*     2.8    14.8    +      -       -      +
    360J  LYS*     4.0    13.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 142 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139J  PRO*     3.7    10.3    -      -       -      +
    141J  PHE*     1.3    76.6    -      -       -      +
    143J  ILE*     1.3    66.3    +      -       -      -
    144J  GLU      3.3     1.1    -      -       -      -
    146J  VAL*     2.9    22.1    +      -       -      +
    311J  ASP*     2.7    26.7    +      -       -      -
    360J  LYS*     4.4     6.1    -      -       -      -
    361J  ALA      3.0    17.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 143 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142J  GLY*     1.3    71.4    -      -       -      -
    144J  GLU*     1.3    66.2    +      -       -      +
    146J  VAL*     3.0     2.9    +      -       -      +
    147J  ARG*     2.9    39.3    +      -       +      +
    338J  ARG*     3.7    28.3    -      -       +      -
    361J  ALA*     3.1    21.3    +      -       +      +
    362J  ALA      3.5    32.3    -      -       -      +
    363J  PHE*     3.7    35.4    -      -       +      +
    385J  ASP*     4.2    20.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 144 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141J  PHE      4.7     1.6    -      -       -      +
    142J  GLY      3.3     0.4    -      -       -      -
    143J  ILE*     1.3    79.2    -      -       -      +
    145J  GLY*     1.3    63.4    +      -       -      +
    147J  ARG*     4.1     5.0    -      -       -      +
    148J  LYS*     3.1    26.6    +      -       -      +
    360J  LYS*     5.3     8.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 145 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141J  PHE*     2.7    47.4    +      -       -      -
    144J  GLU*     1.3    76.0    -      -       -      +
    146J  VAL*     1.3    60.5    +      -       -      +
    148J  LYS*     3.9     7.1    -      -       -      +
    149J  MET*     3.3    21.7    +      -       -      +
    360J  LYS*     5.7     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 146 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141J  PHE*     4.3    11.4    -      -       +      -
    142J  GLY      2.9    21.9    +      -       -      +
    143J  ILE      3.8     2.2    -      -       -      +
    145J  GLY*     1.3    76.8    -      -       -      +
    147J  ARG*     1.3    66.3    +      -       -      +
    148J  LYS      3.2     0.2    -      -       -      -
    149J  MET*     3.2     8.7    +      -       -      +
    150J  LEU*     3.0    43.6    +      -       +      +
    157J  ILE*     5.2     2.5    -      -       +      -
    251J  HIS*     4.4     8.5    -      -       +      +
    277J  ALA*     4.6     7.2    -      -       +      -
    311J  ASP*     4.6     2.9    -      -       +      -
    312J  GLN*     3.3    35.9    -      -       +      +
    363J  PHE*     4.0    19.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 147 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143J  ILE*     2.9    24.8    +      -       +      +
    144J  GLU*     4.1     4.7    -      -       -      +
    146J  VAL*     1.3    75.7    -      -       -      +
    148J  LYS*     1.3    53.3    +      -       -      +
    150J  LEU*     3.3     2.4    +      -       -      +
    151J  GLU*     2.6    32.2    +      -       -      -
    152J  ILE*     2.6    49.4    +      -       -      +
    153J  LYS*     3.2    26.0    +      -       -      +
    154J  ASP      3.5     5.9    +      -       -      -
    155J  ARG      2.9    24.4    +      -       -      -
    156J  PRO*     4.5     0.4    -      -       -      +
    157J  ILE*     4.2     5.9    -      -       +      +
    363J  PHE*     3.9    21.4    -      -       +      -
    384J  THR      2.9    21.8    +      -       -      -
    385J  ASP*     2.7    34.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 148 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144J  GLU      3.1    17.2    +      -       -      +
    145J  GLY*     3.9     8.1    -      -       -      +
    147J  ARG*     1.3    80.0    -      -       -      +
    149J  MET*     1.3    63.0    +      -       -      +
    151J  GLU*     3.3    20.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 149 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141J  PHE*     3.7    35.2    -      -       +      -
    145J  GLY      3.3     8.8    +      -       -      +
    146J  VAL*     3.2    10.0    +      -       -      +
    148J  LYS*     1.3    80.5    -      -       -      +
    150J  LEU*     1.3    67.7    +      -       +      +
    151J  GLU*     4.7     0.3    -      -       -      +
    223J  LYS*     3.7    21.8    -      -       -      +
    250J  LYS*     3.6    46.3    +      -       +      +
    251J  HIS*     3.9    17.5    -      -       +      -
    275J  GLY      5.6     0.4    -      -       -      +
    277J  ALA*     4.1    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 150 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146J  VAL*     3.0    35.5    +      -       +      +
    147J  ARG*     4.2     1.3    -      -       -      +
    149J  MET*     1.3    90.1    -      -       +      +
    151J  GLU*     1.3    71.7    +      -       -      +
    152J  ILE*     3.1    23.8    +      -       +      +
    157J  ILE*     4.1    27.8    -      -       +      -
    186J  ASP*     5.0     3.8    -      -       +      +
    223J  LYS*     3.7    35.4    +      -       +      +
    224J  LYS*     4.3     4.3    -      -       -      +
    225J  THR*     4.0    35.9    -      -       +      -
    227J  PHE*     6.2     1.1    -      -       +      -
    250J  LYS*     4.8     0.9    -      -       -      +
    251J  HIS*     5.0     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 151 (chain J). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147J  ARG      2.6    15.0    +      -       -      -
    148J  LYS*     3.3    14.1    +      -       -      +
    149J  MET      4.7     0.4    -      -       -      +
    150J  LEU*     1.3    76.0    -      -       -      +
    152J  ILE*     1.3    57.8    +      -       -      +
    153J  LYS      3.9     2.2    +      -       -      -
    221J  GLY      4.9     6.8    -      -       -      +
    223J  LYS*     3.7    34.4    +      -       +      +
----------------------------------------------------------
 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