Contacts of the helix formed by residues 105 - 118 (chain K) in PDB entry 6MZL


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 ASP 105 (chain K).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103K  ASN*     3.1    24.2    +      -       -      +
    104K  VAL*     1.3    86.3    -      -       -      +
    106K  THR*     1.3    60.7    +      -       +      +
    107K  LEU      3.2     0.2    -      -       -      -
    108K  PRO*     3.3    15.6    -      -       -      +
    109K  ALA*     4.6     2.9    +      -       -      +
    116O  LEU*     4.3    18.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 106 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102K  PHE*     3.2    15.6    -      -       -      -
    103K  ASN*     3.1    31.4    +      -       +      +
    105K  ASP*     1.3    77.1    -      -       +      +
    107K  LEU*     1.3    53.9    +      -       -      +
    108K  PRO      3.4     0.9    -      -       -      -
    109K  ALA*     3.2    11.2    +      -       +      -
    110K  TYR*     2.6    36.5    +      -       -      +
    161O  LYS*     3.3    23.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 107 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97K  LEU*     5.2     5.2    -      -       +      -
    102K  PHE*     3.5    27.6    -      -       +      -
    104K  VAL*     3.0    39.3    +      -       +      +
    106K  THR*     1.3    77.8    +      -       -      +
    108K  PRO*     1.3    62.9    -      -       +      +
    110K  TYR*     4.0     6.0    -      -       +      +
    111K  ALA*     3.2    15.8    +      -       -      +
    116O  LEU*     5.7     0.4    -      -       +      -
    119O  PHE*     3.6    24.9    -      -       +      -
    154O  LEU*     3.7    27.4    -      -       +      -
    157O  LEU*     4.7    14.0    -      -       +      +
    158O  ALA*     4.5    22.4    -      -       -      +
    161O  LYS*     5.2     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 108 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    104K  VAL      3.9     3.8    -      -       -      +
    105K  ASP*     3.3    17.3    -      -       -      +
    107K  LEU*     1.3    93.4    -      -       +      +
    109K  ALA*     1.3    56.2    +      -       -      +
    111K  ALA*     2.8    27.3    +      -       +      +
    112K  LYS*     3.5     7.1    +      -       -      +
    116K  ARG*     5.2     0.9    +      -       -      -
    115O  PRO*     4.7     9.0    -      -       +      +
    116O  LEU*     5.3     3.1    -      -       +      -
    119O  PHE*     3.6    40.8    -      -       +      -
    122O  GLN*     4.7     6.3    -      -       -      +
    126O  TYR*     4.5     1.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 109 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105K  ASP      4.6     2.0    +      -       -      +
    106K  THR*     3.2    16.5    +      -       +      +
    108K  PRO*     1.3    79.8    -      -       -      +
    110K  TYR*     1.3    57.6    +      -       -      +
    112K  LYS*     2.9    41.4    +      -       +      +
    113K  ARG*     3.7     4.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 110 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44K  LEU*     3.8     8.8    -      -       -      +
     47K  GLU*     6.0     1.7    -      -       +      +
    106K  THR      2.6    22.3    +      -       -      +
    107K  LEU*     4.1     8.3    -      -       +      +
    109K  ALA*     1.3    69.8    -      -       -      +
    111K  ALA*     1.3    53.9    +      -       -      +
    113K  ARG*     2.9    43.0    +      -       +      +
    114K  SER*     2.7    49.6    +      -       -      -
    157O  LEU*     3.7    12.1    -      -       +      -
    160O  GLN*     3.0    25.0    +      -       +      +
    161O  LYS*     3.5    47.5    -      -       +      +
    164O  SER*     2.3    39.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 111 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107K  LEU      3.2    11.2    +      -       -      +
    108K  PRO*     2.8    20.5    +      -       +      +
    110K  TYR*     1.3    76.7    -      -       -      +
    112K  LYS*     1.3    58.3    +      -       -      +
    114K  SER*     3.0    21.5    +      -       -      +
    115K  GLN*     3.3    12.1    +      -       +      +
    116K  ARG*     3.5    20.2    -      -       -      +
    119O  PHE*     5.0     0.4    -      -       +      -
    126O  TYR*     3.7    32.5    -      -       +      +
    157O  LEU*     5.5     4.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 112 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108K  PRO      4.3     4.7    -      -       -      +
    109K  ALA*     2.9    26.3    +      -       +      +
    111K  ALA*     1.3    75.9    -      -       -      +
    113K  ARG*     1.3    57.9    +      -       +      +
    116K  ARG*     3.4    42.0    -      -       -      +
    117K  MET*     3.3    22.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 113 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47K  GLU*     4.2    14.5    -      -       +      +
    109K  ALA      4.6     4.9    -      -       -      +
    110K  TYR*     2.9    46.3    +      -       +      +
    111K  ALA      3.8     0.2    -      -       -      -
    112K  LYS*     1.3    79.9    -      -       +      +
    114K  SER*     1.3    62.9    +      -       -      +
    117K  MET*     3.3    36.3    +      -       -      +
    118K  VAL*     3.8     8.1    +      -       -      +
    161O  LYS*     4.6     7.8    -      -       -      +
    164O  SER*     4.2     7.2    -      -       -      -
    165O  ASP*     4.4     4.8    +      -       -      -
    168O  ASN*     4.1    24.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 114 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44K  LEU*     6.4     1.3    -      -       -      -
    110K  TYR*     2.7    31.1    +      -       -      -
    111K  ALA*     3.0    18.0    +      -       -      -
    113K  ARG*     1.3    77.3    -      -       -      +
    115K  GLN*     1.3    79.1    +      -       -      +
    116K  ARG      3.2     1.2    +      -       -      -
    118K  VAL*     3.5    18.2    +      -       -      +
    129O  THR*     3.2    15.6    +      -       -      -
    157O  LEU*     3.5    11.5    -      -       -      +
    160O  GLN*     3.3    23.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 115 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111K  ALA*     3.3     5.6    +      -       -      +
    114K  SER*     1.3    88.7    +      -       -      +
    116K  ARG*     1.3    63.3    +      -       +      +
    117K  MET      3.8     0.2    -      -       -      -
    118K  VAL      4.4     6.5    -      -       -      +
    120K  THR*     5.9     1.1    -      -       -      -
    126O  TYR*     3.2    39.3    -      -       +      +
    127O  THR*     2.8    39.9    +      -       -      +
    128O  PRO*     3.3    28.0    -      -       +      +
    129O  THR*     4.3     3.4    -      -       -      -
    153O  ARG*     5.2     0.2    -      -       -      +
    157O  LEU*     3.4    23.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 116 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108K  PRO      5.2     0.6    +      -       -      -
    111K  ALA*     3.5    19.5    +      -       -      +
    112K  LYS*     3.4    50.5    -      -       -      +
    114K  SER      3.2     0.8    -      -       -      -
    115K  GLN*     1.3    85.9    -      -       +      +
    117K  MET*     1.3    64.6    +      -       +      +
    118K  VAL      3.9     0.7    -      -       -      -
    126O  TYR*     4.7    18.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 117 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47K  GLU*     3.1    38.8    -      -       -      +
    112K  LYS      3.3    21.5    -      -       -      +
    113K  ARG*     3.3    24.9    +      -       -      +
    116K  ARG*     1.3    82.6    -      -       +      +
    118K  VAL*     1.3    58.3    +      -       -      +
    119K  ILE*     4.4     1.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 118 (chain K). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43K  SER*     3.9    26.7    -      -       -      +
     44K  LEU*     4.8    10.5    -      -       +      -
     47K  GLU*     3.3    41.3    -      -       +      +
    113K  ARG      4.0     7.0    -      -       -      +
    114K  SER*     3.5    20.8    +      -       -      +
    115K  GLN*     4.4     8.8    -      -       -      +
    116K  ARG      5.1     0.3    -      -       -      -
    117K  MET*     1.3    76.5    +      -       -      +
    119K  ILE*     1.3    74.9    +      -       -      +
    120K  THR*     3.7     2.8    +      -       -      -
    129O  THR*     3.8    19.8    +      -       +      -
----------------------------------------------------------
 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