Contacts of the helix formed by residues 194 - 209 (chain B) in PDB entry 3P3W


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 GLU 194 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  ASP*     3.4    13.0    +      -       -      +
    140B  GLU*     5.3     9.2    -      -       +      +
    193B  CYS*     1.3    76.0    -      -       -      +
    195B  VAL*     1.3    67.6    +      -       -      +
    196B  GLU*     3.2     6.3    -      -       +      +
    197B  ARG*     2.9    18.6    +      -       +      +
    198B  ILE*     2.9    11.4    +      -       -      +
    221B  ASN*     3.6     6.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 195 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    194B  GLU*     1.3    72.5    -      -       -      +
    196B  GLU*     1.3    62.0    +      -       -      +
    197B  ARG      3.3     0.2    +      -       -      -
    198B  ILE*     3.4     2.8    +      -       -      +
    199B  ASN*     3.1    30.1    +      -       -      +
    221B  ASN*     3.2    29.5    -      -       -      +
    223B  GLY*     3.9     4.7    -      -       -      +
    226B  ASP*     3.5    42.0    -      -       +      +
    227B  ILE*     3.8    16.8    -      -       +      -
    277B  TYR*     4.2    17.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 196 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  ASN*     5.6     7.6    -      -       -      +
    194B  GLU*     3.2     4.5    -      -       +      +
    195B  VAL*     1.3    79.8    -      -       -      +
    197B  ARG*     1.3    59.9    +      -       -      +
    199B  ASN*     4.1     8.9    +      -       -      +
    200B  THR*     3.7    21.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 197 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138B  ASP*     3.5    25.3    +      -       -      +
    165B  VAL*     2.9    37.5    +      -       -      +
    166B  GLY*     3.3    25.3    +      -       -      -
    168B  ILE      3.5    14.8    +      -       -      -
    174B  PHE*     4.7     7.6    -      -       +      -
    193B  CYS*     3.9    10.5    -      -       +      -
    194B  GLU*     2.9    14.0    +      -       +      +
    196B  GLU*     1.3    76.3    -      -       -      +
    198B  ILE*     1.3    60.0    +      -       -      +
    199B  ASN      3.2     2.0    -      -       -      -
    200B  THR*     2.4    29.0    +      -       -      +
    201B  ILE*     2.7    24.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 198 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191B  ILE*     3.8    15.7    -      -       +      +
    193B  CYS*     3.3    36.6    -      -       +      +
    194B  GLU      2.9    13.4    +      -       -      +
    195B  VAL      3.4     7.6    +      -       -      +
    197B  ARG*     1.3    75.9    -      -       -      +
    199B  ASN*     1.3    63.3    +      -       -      +
    201B  ILE*     3.0    20.7    +      -       -      +
    202B  LEU*     3.1    23.4    +      -       +      +
    219B  LEU*     3.7    35.7    -      -       +      -
    221B  ASN*     3.7    22.4    -      -       +      -
    227B  ILE*     4.0    20.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 199 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    195B  VAL*     3.1    23.0    +      -       -      +
    196B  GLU*     4.1     8.9    -      -       -      +
    197B  ARG      3.2     0.6    -      -       -      -
    198B  ILE*     1.3    76.0    -      -       -      +
    200B  THR*     1.3    62.0    +      -       +      +
    202B  LEU*     3.5     8.2    +      -       -      +
    203B  GLU*     3.2    32.0    +      -       -      +
    226B  ASP      3.4    19.2    +      -       -      -
    227B  ILE*     3.3    13.6    -      -       -      +
    228B  LEU*     2.9    48.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 200 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171B  VAL*     5.2     6.5    -      -       -      +
    174B  PHE*     5.1    12.2    -      -       -      -
    196B  GLU      3.7    13.5    -      -       -      +
    197B  ARG*     2.4    29.0    +      -       -      +
    199B  ASN*     1.3    78.4    -      -       +      +
    201B  ILE*     1.3    64.9    +      -       -      +
    203B  GLU*     3.7    20.0    +      -       -      +
    204B  GLN*     3.4    27.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 201 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136B  LEU*     4.7    20.6    -      -       +      -
    165B  VAL*     5.3     1.8    -      -       +      -
    174B  PHE*     4.3    27.8    -      -       +      -
    178B  ILE*     5.1     9.3    -      -       +      +
    191B  ILE*     4.7    15.5    -      -       +      -
    193B  CYS*     4.1    16.4    -      -       -      -
    197B  ARG*     2.7    50.1    +      -       +      +
    198B  ILE*     3.0    13.5    +      -       -      +
    200B  THR*     1.3    78.1    -      -       -      +
    202B  LEU*     1.3    64.5    +      -       +      +
    204B  GLN*     3.3    22.3    +      -       -      +
    205B  VAL*     3.5    12.7    +      -       +      +
    217B  TYR*     6.0     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 202 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    191B  ILE*     5.9     1.6    -      -       +      -
    198B  ILE*     3.1    19.9    +      -       +      +
    199B  ASN*     3.5     9.8    +      -       -      +
    201B  ILE*     1.3    76.2    -      -       +      +
    203B  GLU*     1.3    64.5    +      -       -      +
    204B  GLN      3.2     2.2    -      -       -      -
    205B  VAL*     3.2    28.5    +      -       +      +
    206B  VAL*     3.4    12.9    -      -       -      +
    217B  TYR*     4.7    20.0    -      -       +      -
    219B  LEU*     4.7    11.7    -      -       +      -
    227B  ILE*     3.8    22.2    -      -       +      -
    228B  LEU      3.6    24.5    -      -       -      +
    229B  LEU*     4.5     7.2    -      -       +      -
    232B  VAL*     4.2    27.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 203 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199B  ASN*     3.2    22.2    +      -       -      +
    200B  THR*     3.8    19.8    -      -       -      +
    201B  ILE      3.4     0.6    -      -       -      -
    202B  LEU*     1.3    76.1    -      -       -      +
    204B  GLN*     1.3    71.3    +      -       -      +
    206B  VAL*     3.4    10.8    +      -       -      +
    207B  ILE*     3.4    23.9    +      -       -      +
    228B  LEU*     4.7    16.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 204 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171B  VAL*     3.4    32.0    -      -       +      +
    174B  PHE*     4.1    21.8    -      -       +      +
    175B  ARG*     3.7    37.9    +      -       +      +
    178B  ILE*     4.7    14.4    -      -       +      +
    200B  THR*     3.4    20.2    +      -       -      +
    201B  ILE*     3.3     8.9    +      -       -      +
    202B  LEU      3.2     0.4    -      -       -      -
    203B  GLU*     1.3    88.0    +      -       -      +
    205B  VAL*     1.3    60.1    +      -       -      +
    206B  VAL      3.1     2.0    -      -       -      -
    207B  ILE*     4.3     5.4    -      -       -      +
    208B  LEU*     3.1    32.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 205 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178B  ILE*     5.0    11.7    -      -       +      -
    201B  ILE*     3.6    18.4    -      -       +      +
    202B  LEU*     3.2    23.7    +      -       +      +
    204B  GLN*     1.3    76.4    -      -       -      +
    206B  VAL*     1.3    58.0    -      -       +      +
    208B  LEU*     5.0     2.0    -      -       -      -
    209B  GLY*     3.1    25.3    +      -       -      +
    211B  HIS*     3.8    31.7    +      -       +      +
    212B  SER*     5.1     2.7    -      -       -      +
    217B  TYR*     3.9    29.8    -      -       +      +
    232B  VAL*     5.0    14.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 206 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202B  LEU      3.4    15.9    -      -       -      +
    203B  GLU*     3.6    10.1    -      -       -      +
    204B  GLN      3.1     0.6    -      -       -      -
    205B  VAL*     1.3    78.6    -      -       +      +
    207B  ILE*     1.3    68.2    -      -       +      +
    208B  LEU      3.3     0.2    -      -       -      -
    209B  GLY*     3.1    14.2    +      -       -      -
    231B  ARG*     3.8    39.0    -      -       +      -
    232B  VAL*     5.0     5.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 207 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  ARG*     3.2    35.7    -      -       -      +
    203B  GLU      3.4    13.3    +      -       -      +
    204B  GLN*     3.6     6.0    +      -       -      +
    206B  VAL*     1.3    82.0    -      -       +      +
    208B  LEU*     1.3    66.8    +      -       -      +
    209B  GLY*     4.4     0.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 208 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  ARG*     4.5    14.8    -      -       +      +
    178B  ILE*     6.2     3.1    -      -       +      -
    204B  GLN      3.1    19.3    +      -       -      +
    205B  VAL*     4.6     1.8    -      -       -      +
    207B  ILE*     1.3    82.6    -      -       -      +
    209B  GLY*     1.3    69.0    +      -       -      +
    210B  LYS*     5.0     1.0    -      -       -      +
    211B  HIS*     4.4    14.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 209 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205B  VAL      3.1    18.6    +      -       -      -
    206B  VAL*     3.1    11.9    +      -       -      -
    207B  ILE      4.4     0.2    -      -       -      -
    208B  LEU*     1.3    78.4    -      -       -      +
    210B  LYS*     1.3    58.7    -      -       -      +
    211B  HIS*     2.2    39.1    +      -       -      -
----------------------------------------------------------
 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