Contacts of the helix formed by residues 86 - 96 (chain C) in PDB entry 2YIN


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 SER 86 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     13C  ALA*     5.6     8.7    -      -       -      +
     83C  SER*     3.0    20.9    +      -       -      +
     84C  LEU      3.4     0.6    -      -       -      -
     85C  VAL*     1.3    81.3    -      -       -      +
     87C  PRO*     1.3    65.2    -      -       -      +
     88C  ALA*     3.0     8.0    +      -       -      +
     89C  SER*     2.6    48.3    +      -       -      -
     90C  PHE      3.2     2.4    +      -       -      -
    129C  LEU*     5.5     0.2    -      -       -      -
    137C  ILE*     5.0     0.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 87 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85C  VAL*     3.8     7.9    -      -       -      +
     86C  SER*     1.3    84.9    -      -       -      +
     88C  ALA*     1.3    56.5    +      -       -      +
     90C  PHE*     3.2     3.9    +      -       +      +
     91C  GLU*     2.8    30.7    +      -       -      +
    129C  LEU*     4.5    11.2    -      -       +      -
    134C  LEU*     4.2    33.2    -      -       +      -
    135C  THR      3.4    26.2    -      -       -      +
    137C  ILE*     3.9    24.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 88 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ASP*     5.5     0.7    -      -       -      +
     86C  SER*     2.9     8.2    +      -       -      +
     87C  PRO*     1.3    78.1    -      -       -      +
     89C  SER*     1.3    57.2    +      -       -      +
     91C  GLU*     2.8    24.0    +      -       -      +
     92C  ASN*     2.9    19.5    +      -       -      +
    134C  LEU*     6.1     0.8    -      -       -      +
     62D  GLU*     3.6    42.8    -      -       +      +
     63D  ASP*     4.8     9.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 89 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ASP*     3.1    29.2    +      -       -      +
     13C  ALA*     6.1     2.0    -      -       -      -
     14C  VAL*     4.3     8.3    -      -       -      -
     81C  CYS      5.1     0.9    -      -       -      +
     82C  PHE*     3.9     7.1    -      -       -      +
     83C  SER      3.1    28.9    +      -       -      -
     86C  SER*     2.6    30.8    +      -       -      -
     88C  ALA*     1.3    78.6    -      -       -      +
     90C  PHE*     1.3    65.7    +      -       -      +
     92C  ASN*     3.2    12.1    +      -       -      +
     93C  VAL*     3.3    14.2    +      -       -      +
     97C  TRP*     4.9     1.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 90 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82C  PHE*     3.3    46.9    -      +       +      -
     86C  SER      3.2     2.2    +      -       -      +
     87C  PRO      3.3    10.3    -      -       -      +
     89C  SER*     1.3    83.3    +      -       -      +
     91C  GLU*     1.3    65.4    +      -       +      +
     93C  VAL*     3.1    21.2    +      -       +      +
     94C  ARG*     5.2     4.7    -      -       -      -
    137C  ILE*     3.3    45.8    -      -       +      -
    141C  GLN*     3.6    16.2    -      -       +      -
    142C  GLY*     3.9     8.5    -      -       -      -
    145C  MET*     3.3    47.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 91 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  PRO      2.8    16.5    +      -       -      +
     88C  ALA*     2.8    10.3    +      -       -      +
     90C  PHE*     1.3    77.3    -      -       +      +
     92C  ASN*     1.3    58.8    +      -       -      +
     93C  VAL      3.2     0.7    +      -       -      -
     94C  ARG*     2.7    43.2    +      -       -      +
     95C  ALA*     2.9    32.3    +      -       +      +
     62D  GLU*     5.6     4.3    -      -       -      +
     65D  ASP*     5.8     3.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ASP*     3.4    28.2    -      -       -      +
     88C  ALA      2.9     9.8    +      -       -      +
     89C  SER      3.2     9.6    +      -       -      +
     91C  GLU*     1.3    75.8    -      -       -      +
     93C  VAL*     1.3    59.5    +      -       -      +
     95C  ALA*     4.1    10.3    -      -       -      +
     96C  LYS*     2.7    45.0    +      -       +      +
     97C  TRP*     2.9    16.6    +      -       -      +
     62D  GLU*     2.9    35.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80C  ILE*     3.8    27.1    -      -       +      -
     81C  CYS      4.7     2.5    -      -       -      +
     82C  PHE*     3.9    26.0    -      -       +      -
     89C  SER      3.3    11.9    +      -       -      +
     90C  PHE*     3.1    18.4    +      -       -      +
     92C  ASN*     1.3    77.6    -      -       -      +
     94C  ARG*     1.3    61.4    +      -       -      +
     97C  TRP*     3.7    10.4    +      -       +      -
     98C  TYR*     2.9    33.0    +      -       +      +
    112C  LEU*     3.8    10.8    -      -       +      -
    145C  MET*     4.0    19.3    -      -       +      -
    149C  ILE*     4.5    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  PHE*     5.2     5.1    -      -       -      -
     91C  GLU*     2.7    46.3    +      -       -      +
     93C  VAL*     1.3    80.9    -      -       -      +
     95C  ALA*     1.3    61.4    +      -       -      +
     98C  TYR*     4.9     5.6    -      -       +      -
     99C  PRO*     3.3    19.9    -      -       -      +
    145C  MET*     3.5    32.7    -      -       +      +
    148C  GLU*     3.1    40.4    +      -       -      +
    149C  ILE*     4.9     3.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 95 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91C  GLU*     2.9    29.4    +      -       +      +
     92C  ASN*     4.1    13.9    -      -       -      +
     94C  ARG*     1.3    81.1    -      -       -      +
     96C  LYS*     1.3    57.4    +      -       -      +
     99C  PRO*     3.8    10.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ASP*     5.4     0.7    -      -       -      +
     60C  GLY      4.2     6.9    +      -       -      -
     61C  GLN      4.2     6.1    +      -       -      -
     62C  GLU*     4.0    21.6    -      -       -      +
     65C  ASP*     3.2    29.6    +      -       -      -
     68C  ARG*     3.9    12.5    -      -       -      +
     92C  ASN*     2.7    33.6    +      -       +      +
     95C  ALA*     1.3    76.4    -      -       -      +
     97C  TRP*     1.3    88.1    +      -       +      +
     98C  TYR      3.7     1.1    -      -       -      -
     99C  PRO*     3.6     4.6    -      -       -      +
    100C  GLU*     3.2    25.2    +      -       +      +
----------------------------------------------------------
 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