Contacts of the helix formed by residues 79 - 92 (chain L) in PDB entry 1DZH


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 79 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78L  LEU*     1.3    74.1    -      -       -      +
     80L  PRO*     1.3    63.9    -      -       -      +
     82L  SER*     2.8    39.2    +      -       -      -
     83L  ILE*     3.3     4.9    +      -       -      +
    219L  ILE*     3.6     9.6    -      -       -      +
    369L  HIS*     3.1    23.9    +      -       -      -
    384L  ALA*     3.6    18.0    -      -       -      +
    421L  ILE      2.9    17.4    +      -       -      -
    422L  PHE*     4.0     9.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 80 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55L  ASN*     5.3     1.6    -      -       -      +
     58L  PHE*     4.8     7.1    -      -       +      -
     59L  ALA*     3.5    39.0    -      -       +      +
     62L  PHE*     5.9     0.4    -      -       +      -
     78L  LEU*     3.5    28.0    -      -       +      +
     79L  SER*     1.3    79.5    -      -       -      +
     81L  LEU*     1.3    66.5    +      -       -      +
     83L  ILE*     3.0    20.9    +      -       +      +
     84L  SER*     3.0    15.3    +      -       -      -
    420L  ILE*     3.6    22.0    -      -       +      +
    421L  ILE      3.3    11.7    -      -       -      +
    423L  MET*     4.1    10.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 81 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55L  ASN*     4.5    23.8    -      -       +      +
     79L  SER*     3.7     7.4    -      -       -      +
     80L  PRO*     1.3    81.1    -      -       -      +
     82L  SER*     1.3    64.4    +      -       -      +
     84L  SER*     3.6     4.0    +      -       -      -
     85L  THR*     3.0    31.8    +      -       -      +
    123L  PHE*     4.6     9.0    -      -       +      -
    126L  LEU*     4.7     3.4    -      -       +      -
    127L  ASN*     5.2     0.2    -      -       -      +
    130L  LEU*     3.9    23.3    -      -       +      -
    131L  TYR*     3.3    26.5    -      -       +      +
    140L  LEU*     6.0     0.2    -      -       +      -
    219L  ILE*     3.8    10.3    -      -       +      -
    419L  THR*     4.7    10.3    -      -       +      +
    420L  ILE      3.9    13.8    +      -       -      +
    421L  ILE*     4.0    23.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 82 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79L  SER*     2.8    33.4    +      -       -      -
     81L  LEU*     1.3    75.2    -      -       -      +
     83L  ILE*     1.3    65.0    +      -       -      +
     85L  THR      2.9     8.5    +      -       -      -
     86L  ALA      3.0    12.1    +      -       -      -
    217L  ASN*     3.1    23.9    +      -       -      +
    218L  THR      4.8     0.2    +      -       -      -
    219L  ILE*     3.5     9.3    -      -       -      +
    369L  HIS*     3.9     2.9    -      -       -      -
    384L  ALA*     4.4     4.9    +      -       -      -
    385L  SER*     3.9     5.9    -      -       -      -
    386L  THR*     2.8    32.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 83 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58L  PHE*     3.9    11.9    -      -       +      -
     62L  PHE*     3.7    31.6    -      -       +      -
     78L  LEU*     4.3     7.4    -      -       +      -
     79L  SER      3.3     7.2    +      -       -      +
     80L  PRO*     3.0    12.2    +      -       +      +
     82L  SER*     1.3    72.7    -      -       -      +
     84L  SER*     1.3    63.5    +      -       -      +
     86L  ALA*     3.2     1.2    +      -       -      -
     87L  PHE*     2.9    34.3    +      -       +      -
    106L  PHE*     3.8    14.1    -      -       +      -
    329L  PHE*     4.9     0.7    -      -       +      -
    331L  LEU*     3.5    35.2    -      -       +      -
    335L  LEU*     4.9     0.2    -      -       +      -
    369L  HIS*     3.5    27.1    -      -       +      -
    386L  THR*     3.3     8.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 84 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55L  ASN*     3.2    29.9    +      -       -      -
     58L  PHE*     4.1    13.9    -      -       -      +
     80L  PRO      3.0    13.1    +      -       -      -
     81L  LEU*     3.8     8.1    -      -       -      -
     83L  ILE*     1.3    72.8    -      -       -      +
     85L  THR*     1.3    54.1    +      -       -      +
     87L  PHE*     3.1     1.0    +      -       -      +
     88L  ALA*     2.7    35.9    +      -       -      +
    106L  PHE*     3.5    26.9    +      -       -      +
    108L  PHE*     4.4     5.5    -      -       -      -
    123L  PHE*     3.9     9.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 85 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81L  LEU*     3.0    15.2    +      -       -      +
     82L  SER      2.9     5.8    +      -       -      -
     84L  SER*     1.3    68.1    -      -       -      +
     86L  ALA*     1.3    61.5    +      -       -      +
     88L  ALA*     2.9    15.0    +      -       -      +
     89L  MET*     2.9    21.1    +      -       +      +
    123L  PHE*     3.1    28.9    -      -       +      -
    127L  ASN*     4.1     7.7    +      -       -      +
    131L  TYR*     5.1     2.3    +      -       -      -
    142L  SER*     5.6     0.7    -      -       -      +
    144L  ASN*     3.5    24.7    -      -       -      +
    166L  TYR*     4.6     9.9    -      -       +      -
    217L  ASN*     3.1    31.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 86 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82L  SER      3.0     9.9    +      -       -      -
     83L  ILE      3.9     1.3    -      -       -      +
     85L  THR*     1.3    71.2    -      -       -      +
     87L  PHE*     1.3    57.9    +      -       -      +
     89L  MET*     3.3    23.3    -      -       +      +
     90L  THR*     3.0    30.7    +      -       -      -
    215L  LEU*     4.6     4.5    -      -       -      +
    216L  VAL      4.9     1.3    -      -       -      -
    217L  ASN*     4.1     5.4    -      -       +      +
    386L  THR*     3.8    40.8    -      -       +      +
    388L  VAL*     4.2    10.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 87 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83L  ILE*     2.9    32.0    +      -       +      +
     84L  SER      3.9     0.7    -      -       -      +
     86L  ALA*     1.3    72.2    -      -       +      +
     88L  ALA*     1.3    58.5    +      -       -      +
     90L  THR*     3.4     7.7    -      -       -      +
     91L  LYS*     2.9    26.3    +      -       -      +
    102L  LEU*     4.4     7.1    -      -       +      +
    106L  PHE*     3.4    32.1    -      +       +      -
    108L  PHE*     5.4     2.5    -      -       -      -
    331L  LEU*     3.7    23.6    -      -       +      -
    335L  LEU*     3.5    15.7    -      -       +      -
    340L  LEU*     3.9    24.5    -      -       +      -
    343L  LEU*     4.1    16.4    -      -       +      -
    344L  PHE*     4.5     5.6    -      +       -      -
    367L  ALA*     3.7    23.6    -      -       +      -
    386L  THR*     4.4     3.6    -      -       +      -
    388L  VAL*     3.9    22.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 88 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     84L  SER      2.7    16.2    +      -       -      +
     85L  THR      3.4     7.9    -      -       -      +
     87L  PHE*     1.3    67.5    -      -       -      +
     89L  MET*     1.3    69.7    +      -       -      +
     91L  LYS*     2.8    26.0    +      -       -      +
     92L  LEU      3.3     3.3    +      -       -      -
    108L  PHE*     4.3    12.9    -      -       +      -
    119L  ILE*     5.7     1.1    -      -       +      -
    120L  HIS*     3.9     8.8    -      -       +      -
    123L  PHE*     3.8    20.6    -      -       +      -
    166L  TYR*     3.4    23.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 89 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85L  THR*     2.9    14.1    +      -       +      +
     86L  ALA*     3.3    34.1    -      -       +      +
     88L  ALA*     1.3    77.7    -      -       -      +
     90L  THR*     1.3    61.9    +      -       -      +
     92L  LEU*     3.2    22.0    +      -       +      +
     93L  GLY      4.6     0.2    +      -       -      -
    144L  ASN*     3.1    44.0    -      -       -      +
    145L  ARG      4.8     0.9    -      -       -      -
    146L  LEU*     5.0     7.4    -      -       +      -
    158L  TYR*     4.7     3.5    -      -       -      -
    162L  SER*     5.9     1.3    -      -       -      +
    166L  TYR*     3.8    31.4    -      -       +      -
    168L  ALA*     4.3    13.5    -      -       +      -
    215L  LEU*     3.7    15.1    -      -       +      +
    216L  VAL      3.6    16.2    -      -       -      +
    217L  ASN*     3.6    12.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 90 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86L  ALA      3.0    11.6    +      -       -      -
     87L  PHE*     3.4    12.8    -      -       +      +
     89L  MET*     1.3    77.3    -      -       -      +
     91L  LYS*     1.3    66.0    +      -       -      +
     92L  LEU      3.1     1.2    +      -       -      -
     93L  GLY      3.3    11.8    +      -       -      -
     94L  ALA      4.0     3.3    +      -       -      -
    102L  LEU*     4.7     3.1    -      -       +      -
    158L  TYR*     5.4     1.3    -      -       -      -
    215L  LEU*     3.4    26.4    -      -       +      +
    343L  LEU*     4.3    32.3    -      -       +      -
    351L  LEU*     4.3    12.6    -      -       +      +
    354L  ILE*     5.4     3.4    -      -       +      +
    364L  VAL*     4.8     2.9    -      -       +      -
    388L  VAL*     3.7    23.5    -      -       +      +
    390L  ILE*     5.6     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 91 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87L  PHE      2.9    14.4    +      -       -      +
     88L  ALA*     2.8    17.8    +      -       -      +
     90L  THR*     1.3    69.5    -      -       -      +
     92L  LEU*     1.3    49.6    +      -       -      +
     94L  ALA*     2.7    33.6    +      -       -      +
     99L  LEU*     3.6    23.0    -      -       +      +
    102L  LEU*     3.5    38.4    -      -       +      -
    103L  MET*     3.4    32.5    -      -       +      +
    108L  PHE*     4.3    18.2    -      -       +      -
    116L  SER*     3.1    12.0    +      -       -      -
    119L  ILE*     4.4     4.3    -      -       -      -
    120L  HIS*     2.9    39.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 92 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17L  MET*     6.1     1.1    -      -       +      +
     19L  PRO*     3.5    32.4    -      -       +      +
     20L  MET*     4.8     2.1    +      -       -      +
     88L  ALA      3.3     3.0    +      -       -      +
     89L  MET*     3.2    16.9    +      -       +      +
     90L  THR      3.1     0.8    +      -       -      -
     91L  LYS*     1.3    70.6    -      -       -      +
     93L  GLY*     1.3    55.9    +      -       -      +
     94L  ALA      3.5     1.8    +      -       -      +
    120L  HIS*     3.5    44.3    +      -       +      +
    158L  TYR*     4.2    15.9    -      -       +      +
    161L  ILE*     3.6    25.4    -      -       +      -
    162L  SER*     3.8    38.8    -      -       -      +
    166L  TYR*     4.0    16.4    -      -       +      -
    353L  GLY*     5.5     0.5    -      -       -      -
----------------------------------------------------------
 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