Contacts of the helix formed by residues 238 - 257 (chain A) in PDB entry 6JKG


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 THR 238 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  HIS*     5.3     2.6    -      -       -      -
    236A  ASP      4.8     3.4    -      -       -      +
    237A  PHE*     1.3    74.3    -      -       -      +
    239A  PHE*     1.3    63.1    +      -       -      +
    240A  VAL*     3.5    10.7    +      -       -      +
    241A  GLU*     2.9    40.7    +      -       -      +
    242A  ASN*     2.6    29.6    +      -       -      +
    271A  HIS*     5.0     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 239 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238A  THR*     1.3    73.8    -      -       -      +
    240A  VAL*     1.3    66.6    -      -       +      +
    242A  ASN*     3.1     9.8    +      -       -      +
    243A  VAL*     2.9    30.7    +      -       +      +
    269A  GLU*     5.7     6.3    -      -       +      -
    270A  HIS*     6.1     3.4    -      +       -      -
    271A  HIS*     4.3    27.6    +      +       -      -
    242B  ASN*     6.3     1.1    -      -       -      -
    269B  GLU*     5.2    12.8    -      -       +      -
    271B  HIS      3.2    31.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 240 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  PHE*     3.5    34.8    -      -       +      -
     49A  LEU*     4.3    21.3    -      -       +      +
     52A  HIS*     3.7    34.3    -      -       +      +
    238A  THR*     3.3     9.6    -      -       -      +
    239A  PHE*     1.3    77.7    -      -       +      +
    241A  GLU*     1.3    58.7    +      -       -      +
    243A  VAL*     3.3     8.5    +      -       +      +
    244A  VAL*     2.9    30.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 241 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  HIS*     4.4    21.4    +      -       +      +
     56A  GLN*     3.3    24.6    +      -       -      +
    236A  ASP      4.4     1.0    -      -       -      +
    237A  PHE*     3.0    37.4    -      -       +      -
    238A  THR*     2.9    42.9    +      -       -      +
    240A  VAL*     1.3    75.4    -      -       -      +
    242A  ASN*     1.3    57.5    +      -       -      +
    244A  VAL*     3.4     1.2    +      -       -      -
    245A  HIS*     2.9    22.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 242 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  LEU*     3.2    22.9    +      -       -      +
    237A  PHE*     3.2    29.6    -      -       -      +
    238A  THR      2.6    21.9    +      -       -      +
    239A  PHE*     3.1     8.2    +      -       -      +
    241A  GLU*     1.3    73.8    -      -       -      +
    243A  VAL*     1.3    54.5    +      -       +      +
    245A  HIS*     2.8     9.3    +      -       -      +
    246A  GLY*     2.7    33.1    +      -       -      -
    267A  ILE*     6.1     4.3    -      -       +      -
    270A  HIS*     3.1    40.5    +      -       +      -
    271A  HIS*     4.1     2.6    -      -       -      -
    214B  ILE*     5.3     6.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 243 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LEU*     4.1    15.7    -      -       +      -
    198A  ILE*     5.7     0.5    -      -       -      +
    200A  PRO*     4.2    14.6    -      -       +      -
    203A  ILE      5.4     1.8    -      -       -      +
    239A  PHE*     2.9    24.1    +      -       +      +
    240A  VAL*     3.7    10.3    -      -       -      +
    242A  ASN*     1.3    75.6    -      -       +      +
    244A  VAL*     1.3    59.7    +      -       -      +
    246A  GLY*     3.3     7.7    +      -       -      +
    247A  HIS*     2.7    42.3    +      -       +      -
    267A  ILE*     3.9    35.6    -      -       +      +
    269B  GLU*     5.4     6.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 244 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LEU*     4.0    14.1    -      -       +      -
     52A  HIS*     3.8     9.6    -      -       +      +
     53A  MET*     3.5    42.8    -      -       +      +
     56A  GLN*     3.2    40.8    -      -       +      +
    240A  VAL      2.9    16.3    +      -       -      +
    241A  GLU*     3.6     6.5    -      -       -      +
    243A  VAL*     1.3    69.6    -      -       -      +
    245A  HIS*     1.3    65.2    +      -       -      +
    246A  GLY      3.0     5.6    +      -       -      -
    247A  HIS*     3.1    16.2    +      -       -      +
    248A  ILE*     3.1    21.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 245 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56A  GLN*     3.3    19.8    +      -       -      +
     60A  ARG*     4.1    24.2    +      -       -      -
    229A  GLY*     5.4     0.8    -      -       -      -
    230A  ASN      5.4     1.8    +      -       -      -
    233A  ASN*     4.8    10.1    +      -       -      -
    234A  LEU*     3.6    30.6    -      -       +      +
    237A  PHE*     4.1    15.1    -      +       +      -
    241A  GLU      2.9    10.5    +      -       -      +
    242A  ASN*     2.8    17.3    +      -       -      +
    244A  VAL*     1.3    72.4    -      -       -      +
    246A  GLY*     1.3    59.9    +      -       -      +
    248A  ILE*     4.1     7.3    -      -       -      +
    249A  LEU*     3.2    58.0    +      -       +      +
    214B  ILE*     4.5     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 246 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    198A  ILE*     5.5     0.9    -      -       -      -
    242A  ASN      2.7    15.5    +      -       -      -
    243A  VAL*     3.7     5.8    -      -       -      -
    244A  VAL      3.0     1.0    -      -       -      -
    245A  HIS*     1.3    71.7    -      -       -      +
    247A  HIS*     1.3    66.1    +      -       -      +
    248A  ILE      3.3     0.2    +      -       -      -
    249A  LEU*     3.4     3.5    +      -       -      +
    250A  ALA*     3.0    22.9    +      -       -      +
    267A  ILE*     6.4     2.5    -      -       -      -
    214B  ILE*     4.6    10.1    -      -       -      +
    215B  LEU*     3.6    28.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 247 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  LEU*     4.4     8.7    -      -       +      -
     53A  MET*     4.1    14.4    -      -       +      -
    102A  PHE*     3.7    18.8    -      +       +      -
    141A  ILE*     3.7    18.8    -      -       +      +
    143A  THR*     2.5    43.8    -      -       +      +
    198A  ILE*     3.8    27.2    -      -       +      +
    200A  PRO*     5.2     3.5    -      -       +      +
    243A  VAL*     2.7    45.3    +      -       +      -
    244A  VAL*     3.1     8.3    +      -       -      +
    246A  GLY*     1.3    73.0    -      -       -      +
    248A  ILE*     1.3    64.1    +      -       -      +
    250A  ALA*     3.2     9.5    -      -       -      +
    251A  ALA*     2.9    22.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 248 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  MET*     5.8     1.3    -      -       -      -
     56A  GLN*     4.1    13.2    -      -       +      +
     57A  LEU*     3.6    40.4    -      -       +      -
     60A  ARG*     3.5    28.7    -      -       -      +
     62A  TYR*     4.6     2.5    -      -       -      +
    102A  PHE*     4.3     9.6    -      -       +      -
    244A  VAL*     3.1    35.4    +      -       +      +
    245A  HIS*     4.2     8.7    -      -       -      +
    247A  HIS*     1.3    77.6    -      -       +      +
    249A  LEU*     1.3    60.0    +      -       +      +
    251A  ALA*     2.9     4.6    +      -       -      +
    252A  GLU*     2.9    53.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 249 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60A  ARG*     4.7     3.4    -      -       -      +
    227A  VAL*     3.6    17.0    -      -       +      -
    228A  ILE      3.6    14.8    -      -       -      +
    229A  GLY*     4.1     4.5    -      -       -      -
    245A  HIS*     3.2    47.2    +      -       +      +
    246A  GLY      3.8     2.2    -      -       -      +
    248A  ILE*     1.3    72.5    -      -       +      +
    250A  ALA*     1.3    66.0    +      -       -      +
    252A  GLU*     3.4    24.7    +      -       +      +
    253A  GLN*     3.0    30.8    +      -       +      +
    214B  ILE*     3.5    26.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 250 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141A  ILE*     4.9     3.1    -      -       +      -
    196A  THR*     4.7    12.7    -      -       +      +
    198A  ILE*     4.3    20.2    -      -       +      -
    227A  VAL*     4.3    15.0    -      -       +      +
    246A  GLY      3.0    14.0    +      -       -      +
    247A  HIS*     3.2    15.3    -      -       -      +
    249A  LEU*     1.3    74.8    -      -       -      +
    251A  ALA*     1.3    57.4    +      -       -      +
    253A  GLN*     3.1     4.2    +      -       -      +
    254A  LEU*     2.9    29.0    +      -       -      +
    260A  LEU*     4.4     6.2    -      -       +      +
    265A  PHE*     6.3     1.1    -      -       +      -
    215B  LEU*     4.9     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 251 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62A  TYR*     5.8     2.5    -      -       +      +
    100A  THR*     4.3     7.9    -      -       +      -
    102A  PHE*     3.6    23.3    -      -       +      -
    139A  LYS*     3.9    13.3    -      -       +      +
    141A  ILE*     3.7    19.1    -      -       +      -
    247A  HIS      2.9    12.0    +      -       -      +
    248A  ILE*     2.9     9.3    +      -       -      +
    250A  ALA*     1.3    71.4    -      -       -      +
    252A  GLU*     1.3    60.4    +      -       +      +
    253A  GLN      2.9     9.8    +      -       -      -
    254A  LEU*     3.0    16.5    +      -       -      +
    255A  SER      3.6     7.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 252 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  LYS*     6.2     0.7    -      -       -      +
     60A  ARG*     2.8    44.8    +      -       -      -
     62A  TYR*     3.3    23.6    +      -       -      +
    139A  LYS*     5.8     0.4    -      -       -      +
    248A  ILE*     2.9    24.8    +      -       -      +
    249A  LEU*     3.7    15.7    -      -       +      +
    251A  ALA*     1.3    71.2    -      -       +      +
    253A  GLN*     1.3    58.4    +      -       +      +
    255A  SER*     3.2    18.9    +      -       -      -
    256A  ARG*     3.6    29.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 253 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    227A  VAL*     4.7    13.7    -      -       +      -
    249A  LEU*     3.0    21.7    +      -       +      +
    250A  ALA*     3.6     4.7    -      -       -      +
    251A  ALA      2.9     1.2    -      -       -      -
    252A  GLU*     1.3    78.4    -      -       +      +
    254A  LEU*     1.3    60.3    +      -       -      +
    255A  SER      3.0     2.2    -      -       -      -
    256A  ARG*     2.8    54.9    +      -       -      +
    257A  ASP*     2.9    40.9    +      -       -      +
    260A  LEU*     3.8    17.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 254 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  LYS*     4.2    17.3    -      -       +      -
    140A  LEU      5.0     1.6    -      -       -      +
    141A  ILE*     5.2     4.3    -      -       +      -
    194A  LEU*     3.3    68.6    -      -       +      +
    195A  THR      4.1     4.9    -      -       -      +
    196A  THR*     4.1    21.5    -      -       +      +
    250A  ALA      2.9    13.4    +      -       -      +
    251A  ALA*     3.0    10.7    +      -       -      +
    253A  GLN*     1.3    76.2    -      -       -      +
    255A  SER*     1.3    61.3    +      -       -      +
    257A  ASP      3.5    16.6    -      -       -      +
    258A  SER*     4.3     0.6    +      -       -      -
    260A  LEU*     3.9    10.9    -      -       +      +
    261A  GLY      3.7    25.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 255 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  LYS*     4.4    20.9    -      -       -      +
    194A  LEU*     5.4     1.1    -      -       -      +
    251A  ALA      3.6     5.5    +      -       -      -
    252A  GLU*     3.2    18.0    +      -       -      -
    253A  GLN      3.0     0.6    -      -       -      -
    254A  LEU*     1.3    79.6    -      -       -      +
    256A  ARG*     1.3    79.2    +      -       -      +
    257A  ASP*     4.6     0.5    -      -       -      -
    258A  SER*     5.1     2.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 256 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  GLU*     3.6    28.4    +      -       -      +
    253A  GLN*     2.8    39.0    +      -       -      +
    255A  SER*     1.3    91.4    +      -       -      +
    257A  ASP*     1.3    70.6    +      -       -      +
    258A  SER      4.3     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 257 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  LYS*     5.7     2.4    -      -       -      +
    253A  GLN*     2.9    26.3    +      -       -      +
    254A  LEU*     3.5    15.7    -      -       -      +
    255A  SER      4.8     0.2    -      -       -      -
    256A  ARG*     1.3    88.6    -      -       -      +
    258A  SER*     1.3    58.9    +      -       -      +
    259A  THR*     2.9    25.6    +      -       -      +
    260A  LEU*     3.4    13.9    +      -       +      +
----------------------------------------------------------
 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