Contacts of the helix formed by residues 216 - 225 (chain C) in PDB entry 5NSS


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 216 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214C  ASN*     5.4     6.1    -      -       -      +
    215C  TYR*     1.3    76.5    -      -       -      +
    217C  THR*     1.3    61.9    +      -       -      +
    218C  GLU*     3.9     9.3    +      -       -      +
    219C  GLN*     2.9    25.6    +      -       -      +
    220C  ILE*     2.9    23.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 217 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215C  TYR      3.9     0.2    +      -       -      -
    216C  THR*     1.3    73.5    -      -       -      +
    218C  GLU*     1.3    59.2    +      -       -      +
    220C  ILE*     3.4    13.0    -      -       +      +
    221C  LEU*     2.9    40.0    +      -       -      +
    313C  ALA*     4.5    16.7    +      -       -      +
    314C  ASN*     5.8     2.2    -      -       +      -
    351C  LEU*     3.9    27.8    -      -       +      -
    357C  ASN*     4.0    20.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 218 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    216C  THR*     3.1     9.5    +      -       -      +
    217C  THR*     1.3    82.1    +      -       -      +
    219C  GLN*     1.3    63.0    +      -       +      +
    221C  LEU*     4.5     1.9    -      -       -      +
    222C  ASP*     2.9    34.7    +      -       -      +
    298C  ALA      5.8     0.2    -      -       -      -
    299C  LYS*     5.7     6.1    -      -       +      +
    300C  ASP*     5.1    17.7    -      -       +      +
    313C  ALA*     5.4     5.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 219 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215C  TYR*     4.5    19.7    -      -       +      -
    216C  THR*     2.9    26.4    +      -       -      +
    218C  GLU*     1.3    80.3    +      -       -      +
    220C  ILE*     1.3    56.4    +      -       -      +
    222C  ASP*     4.5     7.4    -      -       -      +
    223C  LEU*     2.5    49.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 220 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    207C  THR*     5.4     7.6    -      -       -      +
    210C  LEU*     3.5    32.8    -      -       +      -
    211C  ARG*     5.6     1.8    -      -       +      +
    215C  TYR*     3.7    13.9    -      -       +      +
    216C  THR      2.9    12.7    +      -       -      +
    217C  THR*     3.0    25.1    +      -       +      +
    219C  GLN*     1.3    78.1    -      -       -      +
    221C  LEU*     1.3    65.9    +      -       +      +
    223C  LEU*     4.7     1.1    -      -       -      -
    224C  PHE*     2.9    33.3    +      -       +      +
    225C  PHE*     5.0     1.0    -      -       +      -
    347C  ILE*     3.8    34.1    -      -       +      -
    351C  LEU*     3.8    19.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 221 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    217C  THR*     2.9    21.6    +      -       -      +
    218C  GLU*     4.5     1.6    -      -       -      +
    220C  ILE*     1.3    81.9    -      -       +      +
    222C  ASP*     1.3    52.7    +      -       -      +
    225C  PHE*     2.7    63.7    +      -       +      +
    226C  GLU      4.9     1.0    -      -       -      -
    227C  LYS*     5.7     0.4    -      -       -      -
    298C  ALA*     3.2    30.5    -      -       +      +
    299C  LYS*     5.9     0.2    -      -       -      -
    313C  ALA*     4.8     1.1    -      -       +      -
    314C  ASN*     4.0    21.1    -      -       +      +
    336C  LEU*     3.7    31.8    -      -       +      +
    347C  ILE*     5.7     0.2    -      -       +      -
    351C  LEU*     3.6    31.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 222 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218C  GLU      2.9    22.3    +      -       -      +
    219C  GLN*     4.5     9.0    -      -       -      +
    221C  LEU*     1.3    78.8    -      -       -      +
    223C  LEU*     1.3    57.4    +      -       -      +
    225C  PHE      3.0    13.2    -      -       -      +
    226C  GLU*     5.1     3.5    -      -       -      +
    227C  LYS*     5.3    13.9    -      -       +      +
    299C  LYS*     6.3     3.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 223 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    215C  TYR*     4.7    22.9    -      -       +      -
    219C  GLN*     2.5    34.0    +      -       -      +
    220C  ILE*     4.1     1.1    -      -       -      +
    222C  ASP*     1.3    78.0    -      -       -      +
    224C  PHE*     1.3    71.8    +      -       +      +
    225C  PHE      3.2     3.3    +      -       -      +
    226C  GLU*     4.7     6.1    -      -       -      +
    426C  ILE*     4.6    21.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 224 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220C  ILE*     2.9    18.6    +      -       +      +
    223C  LEU*     1.3    84.4    -      -       +      +
    225C  PHE*     1.3    70.7    +      -       +      +
    226C  GLU*     5.9     0.2    -      -       -      -
    347C  ILE*     4.0    26.7    -      -       +      -
    430C  LYS*     6.1     8.3    -      -       +      +
----------------------------------------------------------
 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
----------------------------------------------------------
    220C  ILE*     5.1     1.1    -      -       +      -
    221C  LEU*     2.7    42.4    +      -       +      +
    222C  ASP*     3.0    18.5    -      -       -      +
    223C  LEU      3.7     1.7    -      -       -      +
    224C  PHE*     1.3    94.3    -      -       +      +
    226C  GLU*     1.3    66.6    +      -       -      +
    336C  LEU*     3.8    35.7    -      -       +      -
    344C  GLY      4.9     7.2    -      -       -      -
    345C  PRO*     5.2     2.0    -      -       +      -
    346C  TYR*     3.3    36.8    -      -       +      -
    347C  ILE*     4.6    14.6    -      -       +      -
    348C  SER*     6.2     1.3    -      -       -      -
----------------------------------------------------------
 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