Contacts of the helix formed by residues 91 - 105 (chain M) 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 M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70M  TYR*     3.4    49.6    -      -       +      +
     75M  HIS*     4.4    10.1    -      -       -      +
     83M  VAL*     3.7    21.1    -      -       +      -
     87M  VAL*     4.4     7.0    -      -       +      -
     89M  PRO      4.3     2.0    -      -       -      +
     90M  TRP*     1.3    87.4    -      -       +      +
     92M  ARG*     1.3    68.8    +      -       -      +
     93M  SER      3.1     1.1    -      -       -      -
     94M  LEU*     2.7    19.9    +      -       +      +
     95M  ALA      2.9     9.4    +      -       -      -
     19N  GLN*     3.4    17.2    -      -       +      +
     20N  GLU*     4.0     6.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 92 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     89M  PRO*     5.4     1.6    -      -       -      +
     90M  TRP*     2.6    40.5    +      -       -      +
     91M  PRO*     1.3    70.6    -      -       -      +
     93M  SER*     1.3    56.3    +      -       -      +
     95M  ALA*     3.1    29.6    -      -       -      +
     96M  ASN*     2.8    32.9    +      -       -      +
    194M  PRO*     3.7    19.3    -      -       +      -
     19N  GLN*     3.6     5.4    +      -       -      +
     20N  GLU*     3.3     6.0    +      -       +      +
     45N  THR*     3.9    17.0    -      -       +      -
     46N  ALA      4.8     0.2    -      -       -      -
     47N  TYR*     3.1    67.1    -      -       +      +
     54N  ASN*     3.2    28.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 93 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70M  TYR*     5.4     3.4    -      -       -      -
     81M  PHE*     5.1     7.2    -      -       -      -
     92M  ARG*     1.3    72.4    -      -       -      +
     94M  LEU*     1.3    52.1    +      -       -      +
     96M  ASN*     3.2     3.3    +      -       -      +
     97M  ILE*     2.8    38.0    +      -       -      +
    191M  HIS*     3.4    29.5    -      -       -      -
    192M  PRO*     3.6    14.6    -      -       -      +
    193M  SER*     3.4    10.4    -      -       -      -
    194M  PRO*     4.3     1.1    -      -       -      +
     20N  GLU*     2.5    39.6    +      -       -      -
     22N  ILE*     4.9     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 94 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70M  TYR*     3.9    16.3    +      -       -      +
     81M  PHE*     3.8    17.2    -      -       -      +
     83M  VAL*     3.9    15.9    -      -       +      -
     90M  TRP*     4.3    12.3    -      -       +      -
     91M  PRO*     2.7    16.4    +      -       +      +
     93M  SER*     1.3    71.1    -      -       -      +
     95M  ALA*     1.3    65.3    +      -       -      +
     97M  ILE*     3.0    23.1    +      -       +      +
     98M  PHE*     2.9    51.5    +      -       +      +
    113M  GLY*     3.6    29.8    -      -       -      +
    115M  LEU*     4.1    13.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 95 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90M  TRP*     3.8    21.6    -      -       +      +
     91M  PRO      2.9     4.6    +      -       -      -
     92M  ARG*     3.1    42.4    -      -       -      +
     94M  LEU*     1.3    77.7    -      -       -      +
     96M  ASN*     1.3    65.3    +      -       -      +
     98M  PHE*     3.2     6.8    +      -       -      +
     99M  ASP*     2.9    26.8    +      -       -      +
    109M  LEU*     5.4     0.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 96 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92M  ARG*     2.8    13.1    +      -       -      +
     93M  SER      3.4     3.6    -      -       -      +
     95M  ALA*     1.3    73.0    -      -       -      +
     97M  ILE*     1.3    70.4    +      -       -      +
     99M  ASP*     2.7    26.3    +      -       -      +
    100M  GLU      3.0     8.3    +      -       -      -
    192M  PRO*     2.6    32.8    +      -       +      +
    194M  PRO*     3.5    28.1    -      -       -      +
    197M  ALA*     3.5     9.3    -      -       -      +
    201M  PHE*     3.9     6.7    -      -       +      -
    202M  PHE*     3.5    22.9    -      -       +      -
     54N  ASN*     5.2     4.9    +      -       -      +
     73N  GLN*     5.4     0.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 97 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81M  PHE*     3.6    30.5    -      -       +      -
     93M  SER      2.8    26.2    +      -       -      +
     94M  LEU*     3.2    17.0    -      -       +      +
     96M  ASN*     1.3    71.5    -      -       -      +
     98M  PHE*     1.3    59.7    +      -       +      +
    100M  GLU*     3.0     5.7    +      -       -      +
    101M  TYR*     2.8    25.0    +      -       -      +
    115M  LEU*     6.2     0.4    -      -       +      -
    118M  TRP*     4.5    13.2    -      -       +      -
    168M  TRP*     3.1    39.5    -      -       +      -
    192M  PRO*     3.8    11.7    -      -       +      -
    201M  PHE*     3.7    11.1    -      -       +      -
    207M  PHE*     3.6    25.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 98 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90M  TRP*     4.2    19.5    -      +       -      +
     94M  LEU*     2.9    33.8    +      -       +      -
     95M  ALA*     3.4     9.9    -      -       -      +
     96M  ASN      3.1     0.2    -      -       -      -
     97M  ILE*     1.3    77.4    -      -       +      +
     99M  ASP*     1.3    57.2    +      -       -      +
    101M  TYR*     2.9    14.7    +      +       +      +
    102M  THR*     2.8    31.2    +      -       -      +
    109M  LEU*     4.1    14.8    -      -       +      -
    110M  PRO*     3.6    33.2    -      -       +      -
    112M  ASN      3.4    24.9    -      -       -      -
    113M  GLY*     3.9     8.7    -      -       -      -
    115M  LEU*     3.7    28.0    -      -       +      -
    118M  TRP*     4.4    10.3    -      +       -      -
    226M  LEU*     4.2    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 99 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95M  ALA*     2.9    15.7    +      -       -      +
     96M  ASN*     2.7    23.2    +      -       -      +
     98M  PHE*     1.3    71.2    -      -       -      +
    100M  GLU*     1.3    60.1    +      -       -      +
    102M  THR*     2.7    21.0    +      -       -      -
    103M  ALA*     3.1    13.9    +      -       -      +
    109M  LEU*     3.9    16.8    -      -       -      +
    202M  PHE*     3.9    16.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 100 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54K  THR*     5.9     0.3    -      -       -      +
     96M  ASN      3.0     5.1    +      -       -      -
     97M  ILE      3.4     8.5    -      -       -      +
     99M  ASP*     1.3    76.1    -      -       -      +
    101M  TYR*     1.3    57.4    +      -       -      +
    103M  ALA*     4.2     8.8    -      -       -      +
    104M  ASP*     2.8    32.6    +      -       -      +
    201M  PHE*     3.6    31.2    -      -       +      +
    202M  PHE*     3.4    12.7    -      -       +      +
    203M  GLY      3.0    23.9    +      -       -      -
    204M  SER*     4.1     3.6    -      -       -      +
    205M  ARG*     3.1    44.4    +      -       -      -
    206M  PRO*     3.7    21.1    -      -       +      -
    207M  PHE*     4.1     1.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 101 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97M  ILE      2.8     9.9    +      -       -      +
     98M  PHE*     2.9    19.4    +      +       +      +
    100M  GLU*     1.3    73.3    -      -       -      +
    102M  THR*     1.3    79.1    +      -       +      -
    104M  ASP*     3.2     1.4    +      -       -      +
    105M  LEU*     3.0    47.6    +      -       +      +
    107M  TYR*     3.3    20.3    +      +       +      +
    108M  PRO      3.5    20.4    -      -       -      -
    110M  PRO*     3.6    19.1    -      -       +      -
    118M  TRP*     4.2    16.4    -      +       -      -
    207M  PHE*     3.3    25.3    -      +       +      -
    224M  TRP*     4.4     1.8    -      -       +      -
    225M  ARG*     3.2    40.0    -      -       -      -
    226M  LEU*     3.7    12.6    -      -       +      -
    227M  PRO*     3.3    15.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 102 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47K  SER*     4.5     2.8    +      -       -      -
     98M  PHE      2.8    15.3    +      -       -      +
     99M  ASP*     2.7    28.4    +      -       -      -
    101M  TYR*     1.3    77.5    -      -       +      +
    103M  ALA*     1.3    55.2    +      -       -      +
    105M  LEU      2.3    25.9    -      -       -      +
    106M  GLY*     4.5     1.4    -      -       -      -
    107M  TYR      3.4    25.2    -      -       -      +
    108M  PRO*     3.8     1.3    -      -       +      -
    109M  LEU*     3.5    36.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 103 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47K  SER*     2.9    35.5    +      -       -      -
     99M  ASP      3.1    17.5    +      -       -      +
    100M  GLU*     3.7    10.5    -      -       -      +
    102M  THR*     1.3    76.7    +      -       -      +
    104M  ASP*     1.3    62.0    +      -       -      +
    205M  ARG*     3.9    23.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 104 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47K  SER*     4.8     3.6    -      -       -      -
     48K  ASN*     5.4     4.9    +      -       -      +
    100M  GLU*     2.8    21.6    +      -       -      +
    101M  TYR      3.7     2.7    -      -       -      +
    103M  ALA*     1.3    80.7    -      -       -      +
    105M  LEU*     1.3    60.8    +      -       +      +
    205M  ARG*     3.1    44.9    -      -       -      +
    206M  PRO      3.6     0.2    -      -       -      -
    207M  PHE*     3.2    15.3    +      -       +      +
    208M  SER*     2.7    46.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 105 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47K  SER*     4.9     2.0    +      -       -      -
    101M  TYR*     3.0    34.4    +      -       +      +
    102M  THR      2.3    32.7    -      -       -      +
    103M  ALA      4.0     1.3    -      -       -      +
    104M  ASP*     1.3    78.6    -      -       +      +
    106M  GLY*     1.3    59.5    +      -       -      +
    107M  TYR*     3.2    45.5    +      -       +      +
    207M  PHE*     4.2     9.4    -      -       +      -
    208M  SER*     4.1    33.2    -      -       -      +
    211M  ASN*     5.1     2.7    -      -       -      +
    224M  TRP*     3.9    19.5    -      -       +      -
----------------------------------------------------------
 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