Contacts of the helix formed by residues 91 - 105 (chain C) in PDB entry 2ZHX


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 PRO 91 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  TYR*     3.5    45.5    -      -       +      +
     75C  HIS*     4.8     3.4    -      -       -      +
     83C  VAL*     3.8    21.1    -      -       +      -
     87C  VAL*     4.6     4.5    -      -       +      -
     90C  TRP*     1.4    86.6    -      -       +      +
     92C  ARG*     1.3    61.1    +      -       -      +
     93C  SER      3.2     0.2    -      -       -      -
     94C  LEU*     2.8    25.4    +      -       +      +
     95C  ALA      2.9     9.7    +      -       -      -
     19D  GLN*     3.5    27.6    -      -       +      +
     20D  GLU*     3.6    12.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 92 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89C  PRO*     5.0     1.8    -      -       -      +
     90C  TRP*     2.4    41.5    +      -       -      +
     91C  PRO*     1.3    69.1    -      -       -      +
     93C  SER*     1.3    63.2    +      -       -      +
     95C  ALA*     2.9    21.5    +      -       -      +
     96C  ASN*     2.8    29.1    +      -       -      -
    194C  PRO*     3.7    20.4    -      -       +      -
     19D  GLN*     4.1     3.3    +      -       -      +
     20D  GLU*     3.3     4.4    +      -       -      +
     45D  THR*     4.0    17.4    +      -       +      -
     46D  ALA      4.7     0.4    -      -       -      +
     47D  TYR*     3.1    59.6    -      -       +      +
     54D  ASN*     2.9    30.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 93 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  TYR*     4.9     6.7    -      -       -      -
     81C  PHE*     5.0     6.7    -      -       -      -
     92C  ARG*     1.3    72.9    -      -       -      +
     94C  LEU*     1.3    57.0    +      -       -      +
     96C  ASN*     3.1     3.1    +      -       -      +
     97C  ILE*     2.8    33.3    +      -       -      +
    191C  HIS*     3.3    29.9    -      -       -      -
    192C  PRO*     3.9    13.7    -      -       -      +
    193C  SER*     3.4     7.9    -      -       -      +
    194C  PRO*     4.1     0.8    -      -       -      +
     20D  GLU*     2.5    39.8    +      -       -      -
     22D  ILE*     3.7     3.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 94 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70C  TYR*     3.9    14.1    +      -       -      +
     81C  PHE*     3.6    24.2    -      -       +      +
     83C  VAL*     3.7    29.6    -      -       +      -
     90C  TRP*     4.3    11.0    -      -       +      -
     91C  PRO*     2.8    13.8    +      -       +      +
     93C  SER*     1.3    75.1    -      -       -      +
     95C  ALA*     1.3    62.5    +      -       -      +
     97C  ILE*     3.3    17.6    +      -       +      +
     98C  PHE*     3.0    49.0    +      -       +      -
    113C  GLY*     3.7    14.8    -      -       -      +
    115C  LEU*     4.1    17.9    -      -       +      -
----------------------------------------------------------
 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
----------------------------------------------------------
     90C  TRP*     3.9    18.8    -      -       -      +
     91C  PRO      2.9     6.8    +      -       -      +
     92C  ARG*     2.9    40.6    +      -       -      +
     94C  LEU*     1.3    72.7    -      -       -      +
     96C  ASN*     1.3    70.9    +      -       -      +
     98C  PHE*     2.9    17.1    +      -       -      +
     99C  ASP*     2.9    19.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 96 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92C  ARG*     2.8    15.7    +      -       -      +
     93C  SER      3.6     1.6    -      -       -      +
     95C  ALA*     1.3    73.9    -      -       -      +
     97C  ILE*     1.3    67.5    +      -       -      +
     99C  ASP*     2.8    23.7    +      -       -      +
    100C  GLU      3.0     9.9    +      -       -      -
    192C  PRO      2.7    30.8    +      -       -      +
    194C  PRO*     3.4    31.1    -      -       -      +
    197C  ALA*     3.5    10.7    -      -       +      +
    201C  PHE*     3.9     5.1    -      -       +      -
    202C  PHE*     3.7    28.3    -      -       +      -
     54D  ASN*     5.2     4.6    +      -       -      +
     73D  GLN*     5.4     0.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 97 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81C  PHE*     3.6    30.3    -      -       +      -
     93C  SER      2.8    24.2    +      -       -      +
     94C  LEU*     3.4    18.8    -      -       +      +
     96C  ASN*     1.3    73.4    -      -       -      +
     98C  PHE*     1.3    55.2    +      -       +      +
    100C  GLU*     3.2     4.5    +      -       -      +
    101C  TYR*     2.7    32.6    +      -       -      +
    115C  LEU*     6.3     0.4    -      -       +      -
    118C  TRP*     4.5    11.9    -      -       +      -
    168C  TRP*     3.4    34.5    -      -       +      -
    192C  PRO*     3.6    20.2    -      -       +      -
    201C  PHE*     3.8     9.2    -      -       +      -
    207C  PHE*     3.7    25.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 98 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90C  TRP*     4.2    21.3    -      +       -      +
     94C  LEU*     3.0    27.0    +      -       +      -
     95C  ALA*     2.9    12.0    +      -       -      +
     97C  ILE*     1.3    80.9    -      -       +      +
     99C  ASP*     1.3    54.7    +      -       -      +
    101C  TYR*     3.1    17.1    -      +       +      +
    102C  THR*     2.9    28.9    +      -       -      +
    109C  LEU*     3.8    16.2    -      -       +      -
    110C  PRO*     3.5    32.1    -      -       +      -
    112C  ASN      3.6    21.8    -      -       -      -
    113C  GLY*     3.7    11.9    -      -       -      -
    115C  LEU*     3.7    30.7    -      -       +      -
    118C  TRP*     4.6    10.3    -      +       -      -
    226C  LEU*     4.4    10.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 99 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95C  ALA*     2.9    18.1    +      -       -      +
     96C  ASN*     2.8    24.7    +      -       -      +
     98C  PHE*     1.3    67.0    -      -       -      +
    100C  GLU*     1.3    64.8    +      -       -      +
    102C  THR*     2.7    25.3    +      -       -      -
    103C  ALA*     2.9    10.4    +      -       -      +
    109C  LEU*     4.3    15.3    -      -       -      +
    202C  PHE*     4.0    14.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 100 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96C  ASN      3.0     5.3    +      -       -      -
     97C  ILE      3.5     8.1    -      -       -      +
     99C  ASP*     1.3    74.7    -      -       -      +
    101C  TYR*     1.3    52.1    +      -       -      +
    103C  ALA*     3.4     4.7    -      -       -      +
    104C  ASP*     2.6    34.5    +      -       -      +
    201C  PHE*     3.5    29.8    -      -       +      +
    202C  PHE*     3.3    16.0    -      -       +      +
    203C  GLY      2.8    28.6    +      -       -      -
    205C  ARG*     2.8    48.2    +      -       -      -
    206C  PRO*     3.7    23.3    -      -       +      -
    207C  PHE*     4.3     0.7    -      -       +      -
     54I  THR*     5.3     0.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 101 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97C  ILE      2.7    13.6    +      -       -      +
     98C  PHE*     3.1    20.4    -      +       +      +
     99C  ASP      3.0     0.2    -      -       -      -
    100C  GLU*     1.3    72.7    -      -       -      +
    102C  THR*     1.3    75.0    +      -       +      +
    104C  ASP*     3.7     0.3    -      -       -      -
    105C  LEU*     2.9    46.7    +      -       +      +
    107C  TYR*     3.3    29.3    -      +       +      +
    108C  PRO      3.6    18.4    -      -       -      -
    110C  PRO*     3.8    14.1    -      -       +      -
    118C  TRP*     4.2    17.3    -      +       -      -
    207C  PHE*     3.3    28.9    -      +       +      -
    224C  TRP*     4.4     2.0    -      -       +      -
    225C  ARG*     3.2    39.6    -      -       -      -
    226C  LEU*     3.5    20.3    +      -       +      +
    227C  PRO*     3.7     5.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 102 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98C  PHE      2.9    16.5    +      -       -      +
     99C  ASP*     2.7    24.7    +      -       -      -
    101C  TYR*     1.3    74.2    -      -       +      +
    103C  ALA*     1.3    60.9    +      -       -      +
    105C  LEU      2.4    20.9    -      -       -      +
    106C  GLY*     4.6     1.6    -      -       -      -
    107C  TYR      3.3    26.4    -      -       -      +
    108C  PRO      3.7     1.1    -      -       -      -
    109C  LEU*     3.5    35.8    -      -       +      +
     47I  SER*     4.2     4.0    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 103 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99C  ASP      2.9    13.2    +      -       -      +
    100C  GLU*     3.4    14.4    -      -       -      +
    102C  THR*     1.3    78.2    +      -       -      +
    104C  ASP*     1.3    65.3    +      -       -      +
    105C  LEU      3.8     1.4    -      -       -      +
    205C  ARG*     3.5    21.7    -      -       -      +
     47I  SER*     2.9    36.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 104 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  GLU*     2.6    21.4    +      -       -      +
    101C  TYR      3.8     2.2    -      -       -      +
    103C  ALA*     1.3    75.7    -      -       -      +
    105C  LEU*     1.3    63.8    +      -       +      +
    205C  ARG*     3.1    35.9    +      -       -      +
    206C  PRO*     4.9     0.2    -      -       +      -
    207C  PHE*     3.1    19.9    +      -       +      -
    208C  SER*     2.6    52.5    +      -       -      -
     47I  SER*     5.3     0.5    -      -       -      -
     48I  ASN*     5.1     5.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 105 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  TYR*     2.9    27.6    +      -       +      +
    102C  THR      2.4    30.3    -      -       -      +
    103C  ALA      3.8     1.2    -      -       -      +
    104C  ASP*     1.3    82.4    -      -       +      +
    106C  GLY*     1.3    56.4    +      -       -      +
    107C  TYR*     2.8    48.4    +      -       +      -
    207C  PHE*     4.1     6.1    -      -       +      -
    208C  SER*     3.8    34.5    -      -       -      +
    211C  ASN*     5.5     2.2    -      -       -      +
    224C  TRP*     3.7    28.3    -      -       +      -
     47I  SER*     5.0     0.6    +      -       -      -
----------------------------------------------------------
 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