Contacts of the helix formed by residues 202 - 215 (chain K) in PDB entry 1P7G


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 ASN 202 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95K  PRO      3.2    12.5    -      -       -      +
     96K  ASN      2.8    22.6    +      -       -      +
     97K  MSE      3.4    19.6    -      -       -      +
     98K  ALA*     3.8    11.9    -      -       +      +
    102K  LYS*     4.0    27.9    +      -       -      +
    103K  GLY*     4.2     0.9    -      -       -      -
    200K  VAL      3.2     2.4    +      -       -      -
    201K  VAL*     1.3    69.6    -      -       -      +
    203K  TRP*     1.3    57.3    +      -       -      +
    204K  ASP*     3.2    23.2    +      -       -      +
    205K  ASP*     2.9    34.0    +      -       -      +
    206K  VAL*     3.2     7.8    +      -       -      +
    208K  ARG*     4.8     4.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 203 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102K  LYS      4.7     2.6    +      -       -      -
    104K  GLY      3.6    21.4    +      -       -      -
    105K  GLY      3.1    20.1    +      -       -      -
    106K  LYS      4.0     3.6    -      -       -      +
    107K  PRO*     3.5    38.0    -      -       +      -
    108K  GLY      5.2     1.6    -      -       -      +
    111K  ILE*     4.2    13.9    -      -       +      +
    115K  ILE*     4.2     5.4    -      -       +      -
    122K  PHE*     3.4    26.0    -      +       -      -
    125K  PHE*     3.7    25.6    -      +       -      -
    144K  LEU*     5.3     0.4    -      -       +      -
    173K  LEU*     3.8    22.7    -      -       +      -
    198K  TRP*     3.9     9.1    +      +       -      -
    201K  VAL*     3.0    32.4    +      -       +      +
    202K  ASN*     1.3    71.4    -      -       -      +
    204K  ASP*     1.3    58.0    +      -       -      +
    206K  VAL*     3.6    26.1    -      -       +      +
    207K  GLU*     2.8    29.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 204 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102K  LYS*     4.3    21.7    -      -       -      +
    202K  ASN*     3.1    13.5    +      -       -      +
    203K  TRP*     1.3    78.7    -      -       -      +
    205K  ASP*     1.3    59.1    +      -       -      +
    207K  GLU*     3.4     8.2    +      -       -      +
    208K  ARG*     3.0    42.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 205 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95K  PRO*     3.4    29.1    -      -       -      +
     96K  ASN*     2.8    29.7    +      -       -      -
    202K  ASN*     2.9    20.1    +      -       -      +
    204K  ASP*     1.3    78.5    -      -       -      +
    206K  VAL*     1.3    63.2    +      -       -      +
    208K  ARG*     3.1    32.5    +      -       -      +
    209K  ARG*     2.9    51.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 206 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96K  ASN*     3.9     5.8    -      -       -      +
    111K  ILE*     3.9    25.1    -      -       +      -
    144K  LEU*     4.6     1.1    -      -       +      -
    172K  LEU*     3.9    33.4    -      -       +      +
    173K  LEU*     3.9    29.4    -      -       +      -
    201K  VAL*     4.4     0.7    -      -       +      -
    202K  ASN      3.2    12.3    +      -       -      +
    203K  TRP*     3.3    30.0    +      -       +      +
    205K  ASP*     1.3    75.5    -      -       -      +
    207K  GLU*     1.3    56.9    +      -       -      +
    209K  ARG*     3.6     3.1    +      -       -      +
    210K  LEU*     3.1    26.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 207 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108K  GLY      4.4     1.1    -      -       -      +
    109K  GLY*     3.6     8.6    -      -       -      -
    110K  LYS*     2.9    38.5    +      -       -      +
    111K  ILE*     3.0    34.6    +      -       +      +
    203K  TRP      2.8    18.1    +      -       -      +
    204K  ASP*     3.5    10.5    -      -       -      +
    205K  ASP      3.1     0.4    -      -       -      -
    206K  VAL*     1.3    75.6    -      -       -      +
    208K  ARG*     1.3    62.1    +      -       +      +
    210K  LEU*     3.3     4.4    +      -       -      +
    211K  GLN*     2.9    31.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 208 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123G  GLU*     6.3     3.1    -      -       -      -
     95K  PRO*     5.5     2.4    -      -       -      +
    102K  LYS*     6.0     2.6    -      -       -      +
    202K  ASN*     4.8     4.9    +      -       -      +
    204K  ASP*     3.0    45.6    +      -       -      +
    205K  ASP*     3.1    37.0    +      -       -      +
    207K  GLU*     1.3    79.0    -      -       +      +
    209K  ARG*     1.3    62.0    -      -       +      +
    211K  GLN*     3.0    23.1    +      -       -      +
    212K  LYS*     3.2    12.1    +      -       -      +
    222K  LEU*     4.6    23.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 209 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91K  SER      4.6     1.0    +      -       -      -
     92K  ILE*     4.0    25.1    -      -       -      +
     95K  PRO*     3.4    25.1    -      -       -      +
     96K  ASN*     4.0     3.4    -      -       -      +
    171K  VAL      3.6    11.2    +      -       -      -
    172K  LEU*     3.3    33.9    -      -       +      -
    205K  ASP*     2.9    41.1    +      -       -      +
    206K  VAL      3.9     3.6    -      -       -      +
    208K  ARG*     1.3    75.6    -      -       +      +
    210K  LEU*     1.3    63.0    +      -       -      +
    212K  LYS*     3.3     6.1    +      -       -      +
    213K  ALA*     3.1    22.2    +      -       -      +
    219K  ALA*     2.9    48.1    +      -       +      +
    220K  LEU*     4.2     8.1    -      -       -      +
    221K  LYS      5.5     0.2    -      -       -      +
    222K  LEU*     4.7    12.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 210 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110K  LYS*     3.6    12.6    -      -       +      -
    111K  ILE*     3.3    44.9    -      -       +      +
    114K  LEU*     3.5    30.7    -      -       +      -
    146K  TYR*     4.0    12.1    -      -       +      -
    153K  LEU*     4.5     0.7    -      -       +      -
    172K  LEU*     3.7    28.4    -      -       +      +
    206K  VAL      3.1    15.1    +      -       -      +
    207K  GLU*     3.5     9.9    -      -       -      +
    208K  ARG      3.2     0.2    -      -       -      -
    209K  ARG*     1.3    75.9    -      -       -      +
    211K  GLN*     1.3    54.5    +      -       -      +
    213K  ALA*     4.4     0.4    -      -       -      -
    214K  LEU*     2.8    45.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 211 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131G  GLN*     5.8     2.1    +      -       -      -
    134G  LYS*     5.8     2.9    -      -       -      +
    110K  LYS*     3.8    29.8    -      -       -      +
    207K  GLU*     2.9    22.1    +      -       +      +
    208K  ARG*     3.0    16.5    +      -       -      +
    210K  LEU*     1.3    77.4    -      -       -      +
    212K  LYS*     1.3    59.2    +      -       +      +
    214K  LEU*     3.4     7.4    +      -       -      +
    215K  ASN*     2.7    47.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 212 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195G  ASP*     3.2    43.2    +      -       -      +
    208K  ARG      3.2    11.8    +      -       -      +
    209K  ARG*     3.6     6.7    -      -       -      +
    211K  GLN*     1.3    79.2    -      -       +      +
    213K  ALA*     1.3    55.0    +      -       -      +
    215K  ASN*     2.7    26.5    +      -       -      +
    216K  GLY      3.2     0.2    +      -       -      -
    217K  GLN*     2.9    32.7    +      -       +      +
    218K  ILE      3.2    29.3    +      -       -      +
    219K  ALA*     4.2     5.8    -      -       -      -
    220K  LEU      4.7     6.9    +      -       -      -
    221K  LYS      4.9     3.8    +      -       -      -
    222K  LEU*     3.2    28.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 213 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218J  ILE*     5.4     2.0    -      -       -      +
    146K  TYR*     3.5    49.0    -      -       +      -
    148K  PRO*     5.8     0.2    -      -       -      +
    170K  GLN*     4.4    10.3    -      -       +      -
    172K  LEU*     4.3     7.2    -      -       +      -
    209K  ARG      3.1    14.9    +      -       -      +
    210K  LEU*     3.7     3.8    -      -       -      +
    212K  LYS*     1.3    78.0    -      -       -      +
    214K  LEU*     1.3    58.6    +      -       -      +
    216K  GLY*     2.8    19.9    +      -       -      -
    217K  GLN      3.5    14.0    +      -       -      +
    219K  ALA*     5.1     0.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 214 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110K  LYS*     3.6    39.7    -      -       +      +
    114K  LEU*     3.6    28.7    -      -       +      -
    146K  TYR*     3.8    23.1    +      -       +      +
    151K  GLU*     5.2     3.8    -      -       -      +
    210K  LEU*     2.8    43.5    +      -       +      +
    211K  GLN*     3.6    11.2    -      -       -      +
    213K  ALA*     1.3    73.3    -      -       -      +
    215K  ASN*     1.3    63.5    +      -       -      +
    216K  GLY      3.2     2.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 215 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134G  LYS*     4.3    14.5    -      -       -      +
    189G  ASP*     3.6    21.9    -      -       -      +
    191G  GLY*     6.3     1.8    -      -       -      -
    195G  ASP*     5.0     0.6    +      -       -      -
    211K  GLN*     2.7    39.5    +      -       -      +
    212K  LYS*     2.7     4.3    +      -       -      +
    214K  LEU*     1.3    81.3    -      -       -      +
    216K  GLY*     1.3    62.0    +      -       -      +
    217K  GLN*     2.8    29.2    +      -       -      +
----------------------------------------------------------
 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