Contacts of the helix formed by residues 215 - 228 (chain C) in PDB entry 3NDR


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 215 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    187C  ILE*     3.4     9.1    -      -       -      +
    188C  GLU*     3.3    35.2    +      -       -      +
    193C  LYS*     5.7     2.0    -      -       -      +
    213C  LYS*     3.1    18.9    -      -       -      +
    214C  GLY*     1.3    72.7    -      -       -      +
    216C  PRO*     1.3    72.9    -      -       +      +
    217C  GLU*     3.5    20.2    -      -       +      +
    218C  HIS*     2.7    53.0    +      -       +      +
    219C  ILE      3.8     1.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 216 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  GLY*     4.2     8.3    -      -       -      -
     19C  ILE*     4.0    17.0    -      -       +      +
     22C  ALA*     3.5    24.0    -      -       +      +
    187C  ILE*     3.6    19.5    -      -       +      -
    188C  GLU      3.9    12.1    -      -       -      +
    189C  SER*     4.3     9.9    -      -       -      -
    190C  ASP*     5.7     0.7    -      -       -      +
    215C  GLN*     1.3   101.7    -      -       +      +
    217C  GLU*     1.3    69.0    +      -       -      +
    219C  ILE*     3.0     7.4    +      -       +      +
    220C  ALA*     3.0    20.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 217 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  ARG*     3.5    14.6    -      -       -      +
     22C  ALA*     4.2    14.9    -      -       +      +
    215C  GLN*     3.1    25.7    -      -       +      +
    216C  PRO*     1.3    80.2    -      -       -      +
    218C  HIS*     1.3    60.0    -      -       -      +
    220C  ALA*     4.0     9.0    -      -       +      -
    221C  ASP*     3.0    34.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 218 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  ASP      4.4     1.6    -      -       -      +
    232A  ARG*     3.4    37.4    +      -       +      +
    233A  TRP*     3.4    66.2    +      +       +      +
    213C  LYS      4.3     4.9    -      -       -      -
    215C  GLN*     2.7    47.7    +      -       +      +
    217C  GLU*     1.3    80.1    -      -       -      +
    219C  ILE*     1.3    58.8    +      -       +      +
    221C  ASP*     4.1     2.1    +      -       -      +
    222C  VAL*     3.2    24.4    +      -       -      +
    241C  VAL*     4.0     3.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 219 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  TRP*     4.7     0.2    -      -       +      -
     19C  ILE*     3.5    26.7    -      -       +      -
     23C  ILE*     4.2     0.9    -      -       +      -
    139C  ILE*     4.6     9.6    -      -       +      -
    182C  VAL*     4.8     7.0    -      -       +      -
    184C  PRO*     3.6    29.2    -      -       +      -
    187C  ILE*     3.4    40.4    -      -       +      -
    215C  GLN      4.3     1.1    -      -       -      +
    216C  PRO      3.0     8.0    +      -       -      +
    218C  HIS*     1.3    86.5    -      -       +      +
    220C  ALA*     1.3    66.2    +      -       -      +
    221C  ASP      3.2     0.4    -      -       -      -
    222C  VAL*     3.0     8.7    +      -       -      +
    223C  VAL*     2.9    34.4    +      -       +      +
    241C  VAL*     4.3    18.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 220 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22C  ALA*     3.2    38.6    -      -       +      +
     23C  ILE*     3.6    18.3    -      -       +      +
     26C  ARG*     3.9    10.6    -      -       +      +
     27C  LEU*     5.7     0.2    -      -       -      +
    216C  PRO      3.0    14.1    +      -       -      +
    217C  GLU*     3.4     7.8    +      -       +      +
    219C  ILE*     1.3    77.7    -      -       -      +
    221C  ASP*     1.3    58.7    +      -       -      +
    223C  VAL*     3.2     3.5    +      -       -      +
    224C  SER*     2.9    28.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 221 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    230A  ASP*     3.4    32.6    -      -       -      +
    232A  ARG*     2.5    38.4    +      -       -      +
     26C  ARG*     3.0    34.6    +      -       -      +
    217C  GLU*     3.0    22.0    +      -       -      +
    218C  HIS      4.3     1.6    -      -       -      +
    220C  ALA*     1.3    78.4    -      -       -      +
    222C  VAL*     1.3    59.6    +      -       -      +
    224C  SER*     3.7     4.8    -      -       -      -
    225C  PHE*     3.6    12.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 222 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  PHE*     3.9    18.6    -      -       +      -
    230A  ASP      3.4    17.3    -      -       -      +
    231A  ALA      5.7     0.2    -      -       -      -
    233A  TRP*     6.0     0.2    -      -       +      -
    234A  ILE*     4.1    13.0    -      -       +      -
    182C  VAL*     5.0     4.3    -      -       +      -
    218C  HIS      3.2    21.1    -      -       -      +
    219C  ILE*     3.0     6.0    +      -       -      +
    221C  ASP*     1.3    76.0    -      -       -      +
    223C  VAL*     1.3    66.9    +      -       -      +
    224C  SER      3.1     1.3    -      -       -      -
    225C  PHE*     3.1     5.8    +      -       +      +
    226C  LEU*     3.1    25.4    +      -       +      +
    239C  LEU*     4.3    17.9    -      -       +      -
    241C  VAL*     4.0    30.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 223 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  ILE*     3.6    43.3    -      -       +      -
     27C  LEU*     4.7     5.6    -      -       +      -
     86C  VAL*     4.0    19.5    -      -       +      -
    137C  ILE*     3.7    10.9    -      -       +      +
    139C  ILE*     4.2    12.3    -      -       +      -
    182C  VAL*     4.7     9.9    -      -       +      -
    219C  ILE*     2.9    25.5    +      -       +      +
    220C  ALA      3.5     6.7    -      -       -      +
    222C  VAL*     1.3    77.6    -      -       -      +
    224C  SER*     1.3    56.9    +      -       -      +
    226C  LEU*     3.1    10.6    +      -       -      +
    227C  ALA*     2.8    28.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 224 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  ARG*     2.9    17.5    +      -       -      -
      5C  LEU*     5.1     0.3    -      -       -      +
     26C  ARG*     3.1    35.5    +      -       -      -
     27C  LEU*     4.0    10.1    -      -       -      +
     30C  ASP*     2.8    28.3    +      -       -      +
    220C  ALA      2.9     8.3    +      -       -      -
    221C  ASP      3.7     7.6    -      -       -      -
    222C  VAL      3.1     0.2    -      -       -      -
    223C  VAL*     1.3    76.7    -      -       -      +
    225C  PHE*     1.3    60.5    +      -       -      +
    227C  ALA*     3.3     4.5    +      -       -      +
    228C  SER*     3.3    20.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 225 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221A  ASP      4.3     2.0    -      -       -      -
    222A  VAL*     4.0    15.0    -      -       +      -
    225A  PHE*     3.3    64.8    -      +       +      -
    230A  ASP*     5.3     0.7    -      -       +      +
    239A  LEU*     5.6     1.3    -      -       +      -
      4C  ARG*     4.0     8.7    -      -       -      +
    221C  ASP      3.6     4.4    +      -       -      +
    222C  VAL*     3.1    10.6    +      -       +      +
    224C  SER*     1.3    81.2    +      -       -      +
    226C  LEU*     1.3    84.6    +      -       +      +
    228C  SER*     2.6    31.4    +      -       -      -
    230C  ASP*     3.7    32.5    -      -       +      -
    231C  ALA*     3.5    17.2    -      -       +      +
    234C  ILE*     3.9    16.2    -      -       +      -
    239C  LEU*     5.0     5.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 226 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135C  ARG*     3.1    23.6    +      -       -      -
    137C  ILE*     3.7    24.3    -      -       +      +
    180C  ASN*     4.2    30.4    +      -       +      +
    181C  ALA      4.8     0.4    -      -       -      +
    182C  VAL*     3.5    32.1    -      -       +      -
    222C  VAL*     3.1    16.2    +      -       +      +
    223C  VAL*     3.1     7.6    +      -       -      +
    225C  PHE*     1.3    98.6    -      -       +      +
    227C  ALA*     1.3    58.7    +      -       -      +
    228C  SER      3.4     0.3    +      -       -      -
    231C  ALA*     3.7    14.9    -      -       +      +
    234C  ILE*     4.7     4.9    -      -       +      -
    239C  LEU*     4.0    25.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 227 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5C  LEU*     3.9    15.6    -      -       +      +
     27C  LEU*     4.1    16.8    -      -       +      -
     84C  ILE*     4.0    28.4    -      -       +      +
    135C  ARG*     3.5    18.0    +      -       -      +
    137C  ILE*     3.7    13.4    -      -       +      +
    223C  VAL      2.8    15.6    +      -       -      +
    224C  SER      3.6     6.3    -      -       -      +
    225C  PHE      3.1     0.2    -      -       -      -
    226C  LEU*     1.3    76.8    -      -       -      +
    228C  SER*     1.3    58.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 228 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4C  ARG*     3.5    42.8    +      -       -      +
      5C  LEU*     4.7     7.4    -      -       -      -
    135C  ARG*     3.4    15.4    +      -       -      -
    224C  SER      3.3     3.2    +      -       -      -
    225C  PHE*     2.6    21.3    +      -       -      +
    227C  ALA*     1.3    81.7    -      -       -      +
    229C  ASP*     1.3    63.3    +      -       -      +
    230C  ASP*     3.1    21.4    +      -       -      +
    231C  ALA*     3.1    11.3    +      -       -      +
----------------------------------------------------------
 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