Contacts of the helix formed by residues 128 - 146 (chain C) in PDB entry 6O81


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 GLN 128 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96C  LEU*     4.0    20.5    -      -       +      +
    126C  TYR      3.5    19.4    +      -       -      +
    127C  ALA*     1.3    81.8    +      -       -      +
    129C  LEU*     1.3    62.3    +      -       -      +
    130C  GLN      3.3     2.6    +      -       -      -
    131C  SER*     3.6    16.1    +      -       -      +
    132C  ASN*     2.9    28.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 129 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51C  TRP*     4.1    30.3    -      -       +      +
     54C  ALA*     4.8    18.4    -      -       +      +
     92C  GLU*     5.7     3.8    -      -       +      -
     93C  TYR*     5.6    10.3    -      -       +      +
     96C  LEU*     3.8    24.1    -      -       +      +
    126C  TYR      3.3    26.5    -      -       -      +
    127C  ALA*     3.2    10.0    -      -       -      +
    128C  GLN*     1.3    77.7    -      -       -      +
    130C  GLN*     1.3    66.7    +      -       +      +
    132C  ASN*     3.2     5.3    +      -       -      +
    133C  ILE*     3.0    38.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 130 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  ILE*     3.4    24.4    +      -       +      +
     47C  THR*     3.5    25.3    +      -       -      +
     49C  HIS      5.6     0.6    +      -       -      -
     51C  TRP*     3.8    31.1    -      -       +      -
    127C  ALA      4.4     5.3    +      -       -      +
    128C  GLN      3.3     0.6    -      -       -      -
    129C  LEU*     1.3    84.8    -      -       +      +
    131C  SER*     1.3    58.0    +      -       -      +
    133C  ILE*     3.2     7.3    +      -       -      +
    134C  ILE*     2.9    39.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 131 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  GLN*     3.6    15.9    +      -       -      +
    129C  LEU      3.4     0.2    -      -       -      -
    130C  GLN*     1.3    78.4    -      -       -      +
    132C  ASN*     1.3    63.6    +      -       -      +
    134C  ILE*     3.4     8.3    +      -       -      +
    135C  GLU*     2.9    31.3    +      -       -      +
     91L  PRO*     6.0     1.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 132 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  GLU*     3.6    29.2    +      -       +      +
     96C  LEU*     3.9    16.2    -      -       -      +
    128C  GLN*     2.9    29.7    +      -       -      +
    129C  LEU*     3.2     8.5    +      -       -      +
    130C  GLN      3.2     0.6    -      -       -      -
    131C  SER*     1.3    85.8    +      -       -      +
    133C  ILE*     1.3    57.8    +      -       -      +
    135C  GLU*     3.3    15.2    -      -       -      +
    136C  ALA*     2.9    29.5    +      -       -      +
     52L  ARG*     3.3    26.9    +      -       -      +
     53L  ARG*     3.7     1.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 133 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  ILE*     3.7    24.7    -      -       +      -
     85C  VAL*     5.2     2.9    -      -       +      -
     88C  ILE*     3.9    14.4    -      -       +      -
     89C  ILE*     3.7    36.3    -      -       +      -
     92C  GLU*     3.7    34.5    -      -       +      -
    129C  LEU*     3.0    22.6    +      -       +      +
    130C  GLN*     3.8     6.7    -      -       -      +
    132C  ASN*     1.3    73.3    -      -       -      +
    134C  ILE*     1.3    61.3    +      -       -      +
    136C  ALA*     3.7     2.5    -      -       -      +
    137C  ILE*     2.9    38.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 134 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43C  ARG*     4.2    21.0    +      -       +      +
     46C  ILE*     3.9    21.3    -      -       +      -
     47C  THR*     3.7    29.4    -      -       +      -
    130C  GLN*     2.9    29.5    +      -       +      +
    131C  SER*     3.7     8.5    -      -       -      +
    133C  ILE*     1.3    76.6    -      -       -      +
    135C  GLU*     1.3    56.6    +      -       -      +
    137C  ILE*     3.4     5.0    +      -       +      +
    138C  ASN*     2.8    45.1    +      -       -      +
     91L  PRO*     4.7    11.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 135 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131C  SER      2.9    21.8    +      -       -      +
    132C  ASN*     3.3    13.6    -      -       -      +
    134C  ILE*     1.3    74.3    -      -       -      +
    136C  ALA*     1.3    60.1    +      -       -      +
    138C  ASN*     3.5    11.1    -      -       +      +
    139C  GLU*     2.9    39.2    +      -       -      +
     52L  ARG*     4.0    23.3    +      -       -      +
     53L  ARG*     2.4    41.2    +      -       -      -
     91L  PRO*     5.3    12.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 136 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     88C  ILE*     3.9    30.9    -      -       +      +
    132C  ASN      2.9    18.6    +      -       -      +
    133C  ILE*     3.7     4.3    -      -       -      +
    134C  ILE      3.3     0.2    -      -       -      -
    135C  GLU*     1.3    75.8    -      -       -      +
    137C  ILE*     1.3    60.7    +      -       -      +
    139C  GLU*     3.3    15.0    -      -       -      +
    140C  LEU*     2.9    28.9    +      -       -      +
     53L  ARG*     3.6    19.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 137 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  LEU*     3.8    32.7    -      -       +      +
     42C  LEU*     4.8     2.0    -      -       +      -
     43C  ARG*     3.5    41.1    -      -       +      +
     46C  ILE*     3.8    26.0    -      -       +      -
     85C  VAL*     4.7    20.4    -      -       +      -
     88C  ILE*     5.4     6.1    -      -       +      -
    133C  ILE*     2.9    29.2    +      -       +      +
    134C  ILE*     3.8     4.7    -      -       -      +
    136C  ALA*     1.3    76.5    -      -       +      +
    138C  ASN*     1.3    57.0    +      -       -      +
    140C  LEU*     3.3     7.3    +      -       -      +
    141C  LEU*     2.9    29.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 138 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43C  ARG*     2.5    35.6    +      -       -      +
    134C  ILE*     2.8    41.9    +      -       -      +
    135C  GLU*     3.5    11.3    -      -       +      +
    136C  ALA      3.2     0.2    -      -       -      -
    137C  ILE*     1.3    77.6    -      -       -      +
    139C  GLU*     1.3    57.9    +      -       -      +
    141C  LEU*     3.1     6.3    +      -       -      +
    142C  VAL*     2.9    31.7    +      -       +      +
     91L  PRO*     4.2    15.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 139 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  GLU*     2.9    27.9    +      -       -      +
    136C  ALA*     3.3    18.0    -      -       -      +
    138C  ASN*     1.3    71.8    -      -       -      +
    140C  LEU*     1.3    61.2    +      -       +      +
    142C  VAL*     3.4    11.3    +      -       +      +
    143C  GLU*     2.9    28.1    +      -       -      +
     51L  SER*     3.5    28.5    -      -       -      -
     52L  ARG      4.5     1.6    +      -       -      -
     53L  ARG*     3.4    34.4    +      -       -      +
     61L  LEU*     5.4     7.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 140 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39C  LEU*     3.9    29.4    -      -       +      -
     81C  MET*     4.6    11.2    -      -       +      -
     84C  ARG*     4.0    51.8    -      -       +      +
     85C  VAL*     5.2     2.0    -      -       +      -
     88C  ILE*     4.1    14.6    -      -       +      -
    136C  ALA      2.9    18.1    +      -       -      +
    137C  ILE*     3.6     6.5    -      -       +      +
    138C  ASN      3.2     0.2    -      -       -      -
    139C  GLU*     1.3    78.4    -      -       +      +
    141C  LEU*     1.3    57.4    +      -       -      +
    143C  GLU*     3.3    15.2    +      -       +      +
    144C  LEU*     2.9    33.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 141 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  ARG*     4.0    36.4    -      -       +      +
     39C  LEU*     3.8    33.4    -      -       +      -
     40C  GLY*     5.3     2.9    -      -       -      +
     43C  ARG*     3.4    29.6    -      -       -      +
    137C  ILE      2.9    13.6    +      -       -      +
    138C  ASN*     3.1     8.7    +      -       -      +
    140C  LEU*     1.3    76.1    -      -       -      +
    142C  VAL*     1.3    60.3    +      -       +      +
    144C  LEU*     3.7     9.1    -      -       +      +
    145C  GLU*     2.9    30.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 142 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138C  ASN*     2.9    17.7    +      -       +      +
    139C  GLU*     3.7    11.0    -      -       -      +
    141C  LEU*     1.3    76.4    -      -       +      +
    143C  GLU*     1.3    62.1    +      -       -      +
    145C  GLU*     3.5    17.3    +      -       -      +
    146C  GLY*     3.5     9.9    +      -       -      -
     60L  LYS      4.2     3.4    -      -       -      +
     61L  LEU*     3.8    32.9    -      -       +      +
     63L  ARG*     5.3     4.3    -      -       +      +
     66L  ARG*     4.0    24.5    -      -       -      +
     86L  LYS*     5.0     3.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 143 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84C  ARG*     4.4    15.8    +      -       -      -
    139C  GLU      2.9    17.5    +      -       -      +
    140C  LEU*     3.6    15.5    -      -       +      +
    142C  VAL*     1.3    78.0    -      -       -      +
    144C  LEU*     1.3    60.6    +      -       -      +
    146C  GLY      3.5    10.6    +      -       -      +
    147C  THR*     3.7     9.0    +      -       -      -
    150C  ASN*     5.5     0.2    +      -       -      -
    327C  ASN*     3.9    24.7    +      -       -      +
    328C  ILE*     4.9     7.3    -      -       -      +
     60L  LYS*     3.4    39.7    -      -       -      +
     61L  LEU*     5.3     1.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 144 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  GLU*     3.0    51.8    -      -       +      +
     35C  ALA*     3.8    25.1    -      -       +      -
     36C  ARG*     3.7    19.7    -      -       +      -
     39C  LEU*     4.6    14.4    -      -       +      -
     81C  MET*     4.9     4.7    -      -       +      -
    140C  LEU*     2.9    22.7    +      -       +      +
    141C  LEU*     3.8     9.6    -      -       +      +
    142C  VAL      3.3     0.2    -      -       -      -
    143C  GLU*     1.3    74.8    -      -       -      +
    145C  GLU*     1.3    61.4    +      -       -      +
    146C  GLY      3.3     0.2    -      -       -      -
    147C  THR*     3.3    14.4    -      -       -      +
    272C  PHE*     4.1    25.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 145 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  GLU*     3.6    12.8    -      -       -      +
     36C  ARG*     5.5    14.6    -      -       -      +
    141C  LEU      2.9    17.0    +      -       -      +
    142C  VAL*     3.9    10.8    -      -       -      +
    143C  GLU      3.3     0.4    -      -       -      -
    144C  LEU*     1.3    79.1    -      -       -      +
    146C  GLY*     1.3    58.6    +      -       -      +
    147C  THR      3.6     1.0    +      -       -      -
    148C  MET*     5.0     1.9    +      -       -      +
    149C  GLU*     5.2     1.0    +      -       -      +
     63L  ARG*     4.2    24.4    -      -       +      +
     66L  ARG*     4.3    20.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 146 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142C  VAL      3.5    10.7    +      -       -      -
    143C  GLU      3.8     6.1    -      -       -      -
    144C  LEU      3.3     0.4    -      -       -      -
    145C  GLU*     1.3    80.6    -      -       -      +
    147C  THR*     1.3    53.2    +      -       -      +
    148C  MET      3.7     0.7    -      -       -      -
    149C  GLU*     3.5    21.2    -      -       -      +
    150C  ASN*     2.6    37.2    +      -       -      -
     60L  LYS      5.2     2.1    -      -       -      +
     63L  ARG*     4.4    10.5    -      -       -      +
----------------------------------------------------------
 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