Contacts of the helix formed by residues 97 - 110 (chain H) in PDB entry 1VCB


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 97 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95H  ILE      3.6     3.8    -      -       -      +
     96H  ALA*     1.3    83.3    -      -       +      +
     98H  GLU*     1.3    79.7    +      -       -      +
     99H  ILE      3.3     1.0    +      -       -      -
    100H  ALA*     3.3    18.3    +      -       +      +
    101H  LEU*     4.6     2.1    +      -       -      +
    165I  VAL*     5.0     2.2    -      -       +      -
    169I  LEU*     3.7    40.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 98 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96G  PRO*     3.7    31.3    -      -       +      +
     97G  PRO*     4.4     7.5    -      -       -      +
     98G  GLU*     4.7    26.2    -      -       +      +
     96H  ALA*     3.3    17.2    +      -       -      +
     97H  PRO*     1.3    93.4    -      -       +      +
     99H  ILE*     1.3    60.5    +      -       +      +
    100H  ALA      3.4     0.2    -      -       -      -
    101H  LEU*     4.9     3.5    +      -       -      +
    102H  GLU*     3.7    14.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 99 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96G  PRO*     4.6     7.0    -      -       +      -
     68H  HIS*     3.8    42.4    -      -       +      +
     69H  VAL*     5.1     3.6    -      -       +      -
     72H  LYS*     4.4    20.4    -      -       +      -
     95H  ILE*     4.4     4.7    -      -       +      -
     96H  ALA*     3.2    23.6    +      -       +      +
     98H  GLU*     1.3    80.5    -      -       +      +
    100H  ALA*     1.3    55.3    +      -       -      +
    101H  LEU      3.5     0.9    -      -       -      -
    102H  GLU*     3.3     8.7    +      -       -      +
    103H  LEU*     2.8    59.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 100 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95H  ILE*     4.1    11.0    -      -       +      -
     96H  ALA      3.3     9.5    +      -       -      +
     97H  PRO*     3.3    16.0    +      -       +      +
     99H  ILE*     1.3    77.4    -      -       -      +
    101H  LEU*     1.3    64.1    +      -       +      +
    103H  LEU*     3.8     1.5    -      -       -      +
    104H  LEU*     3.0    26.0    +      -       -      +
    162I  CYS*     4.2     5.0    -      -       -      +
    165I  VAL*     4.1    20.2    -      -       +      -
    166I  VAL*     3.8    20.9    -      -       +      -
    169I  LEU*     4.7     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 101 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98G  GLU*     5.7     4.7    -      -       -      +
     97H  PRO      4.6     2.3    +      -       -      +
     98H  GLU      4.9     2.8    +      -       -      +
     99H  ILE      3.5     0.6    -      -       -      -
    100H  ALA*     1.3    76.8    -      -       +      +
    102H  GLU*     1.3    64.8    +      -       +      +
    104H  LEU*     3.4     9.1    -      -       +      +
    105H  MET*     3.2    30.8    +      -       +      +
    166I  VAL*     3.9    22.4    -      -       +      -
    178I  LEU*     3.8    39.5    -      -       +      -
    179I  ASP      5.6     3.6    -      -       -      +
    180I  ILE*     4.3    18.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 102 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97G  PRO*     3.1    30.0    -      -       +      +
     66H  PRO*     4.2    10.9    -      -       +      +
     68H  HIS*     3.1    34.1    +      -       -      -
     69H  VAL*     3.5    18.1    -      -       +      +
     98H  GLU      3.7    11.7    +      -       -      +
     99H  ILE*     3.3     3.7    +      -       -      +
    100H  ALA      3.3     0.4    -      -       -      -
    101H  LEU*     1.3    78.1    -      -       +      +
    103H  LEU*     1.3    67.6    +      -       -      +
    105H  MET*     3.3    22.0    +      -       +      +
    106H  ALA*     2.9    23.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 103 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69H  VAL*     4.0    12.1    -      -       +      +
     72H  LYS*     4.1    20.6    -      -       +      -
     73H  VAL*     3.9    19.1    -      -       +      -
     93H  PHE*     4.8     1.3    -      -       +      -
     95H  ILE*     3.8    17.9    -      -       +      -
     99H  ILE*     2.8    41.4    +      -       +      +
    100H  ALA*     3.8     2.0    -      -       -      +
    102H  GLU*     1.3    73.9    -      -       -      +
    104H  LEU*     1.3    52.9    +      -       -      +
    106H  ALA      3.1     0.5    +      -       -      -
    107H  ALA*     2.6    34.8    +      -       -      +
    158I  LEU*     3.5    42.8    -      -       +      -
    162I  CYS*     3.7    11.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 104 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100H  ALA      3.0    16.5    +      -       -      +
    101H  LEU*     3.4    17.0    -      -       +      +
    103H  LEU*     1.3    76.0    -      -       -      +
    105H  MET*     1.3    52.0    -      -       -      +
    107H  ALA*     3.3     2.5    +      -       -      +
    108H  ASN*     2.7    31.5    +      -       -      +
    159I  LYS*     4.6    10.8    -      -       +      -
    162I  CYS*     3.5    25.0    -      -       +      -
    163I  LEU*     4.2    30.3    -      -       +      +
    166I  VAL*     4.3    18.6    -      -       +      -
    180I  ILE*     5.0    10.1    -      -       +      -
    184I  LEU*     3.9    35.2    -      -       +      -
    188I  LEU*     5.3     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 105 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101H  LEU*     3.2    21.1    -      -       +      +
    102H  GLU*     3.3    27.3    +      -       +      +
    104H  LEU*     1.3    73.6    -      -       +      +
    106H  ALA*     1.3    66.8    +      -       -      +
    108H  ASN*     3.6     6.5    -      -       -      +
    109H  PHE*     3.1    23.4    +      -       -      +
    179I  ASP      4.6     7.6    -      -       -      +
    180I  ILE*     4.2    21.1    -      -       +      -
    181I  VAL*     5.8     3.1    -      -       +      -
    184I  LEU*     4.1    19.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 106 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65H  ILE*     4.1    24.7    -      -       +      -
     69H  VAL*     3.5    30.7    -      -       +      -
     73H  VAL*     4.5     6.5    -      -       +      -
    102H  GLU      2.9     8.1    +      -       -      +
    103H  LEU*     3.4    10.5    -      -       +      +
    105H  MET*     1.3    75.6    -      -       -      +
    107H  ALA*     1.3    58.6    +      -       -      +
    109H  PHE*     3.2     4.2    +      -       -      +
    110H  LEU*     2.9    36.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 107 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103H  LEU      2.6    21.4    +      -       -      +
    104H  LEU*     3.6     5.2    -      -       -      +
    106H  ALA*     1.3    75.5    -      -       -      +
    108H  ASN*     1.3    62.3    +      -       -      +
    110H  LEU*     3.4     0.6    +      -       -      -
    111H  ASP*     3.1    19.2    +      -       -      -
    112H  CYS*     3.6    16.6    +      -       -      +
    158I  LEU*     3.4    37.2    -      -       +      +
    159I  LYS*     3.7    21.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 108 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108F  ARG*     3.3    28.1    +      -       -      +
    104H  LEU*     2.7    18.6    +      -       +      +
    105H  MET*     3.6     7.6    -      -       -      +
    107H  ALA*     1.3    79.2    -      -       -      +
    109H  PHE*     1.3    60.9    +      -       -      +
    111H  ASP*     3.7     0.6    +      -       -      +
    159I  LYS*     3.1    30.9    +      -       +      +
    181I  VAL*     5.9     2.2    -      -       -      +
    183I  SER*     4.8     6.1    +      -       -      -
    184I  LEU*     3.2    35.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 109 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75F  ILE*     5.0     4.7    -      -       +      -
    106F  GLY*     2.9    43.3    -      -       -      -
    107F  ARG*     3.4    17.3    -      -       +      -
    108F  ARG*     4.1    12.5    +      -       +      +
     41H  THR*     2.6    46.4    +      -       +      -
     45H  MET*     4.5    10.5    -      -       +      -
     62H  PHE*     4.1    25.1    -      +       -      -
     65H  ILE*     4.5    10.8    -      -       +      -
    105H  MET      3.1    16.0    +      -       -      +
    106H  ALA*     3.7     3.6    -      -       -      +
    108H  ASN*     1.3    80.1    -      -       -      +
    110H  LEU*     1.3    62.2    +      -       +      +
    111H  ASP      3.5     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 110 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39H  SER*     2.4    29.9    +      -       -      +
     41H  THR*     3.2    12.3    +      -       +      -
     42H  ILE*     4.0    27.8    -      -       +      -
     62H  PHE*     4.0    21.5    -      -       +      -
     65H  ILE*     4.5    11.2    -      -       +      -
     70H  LEU*     5.4     2.7    -      -       +      -
     73H  VAL*     3.6    40.4    -      -       +      -
     77H  PHE*     4.9     2.5    -      -       +      -
    106H  ALA      2.9    23.1    +      -       -      +
    109H  PHE*     1.3    85.5    -      -       +      +
    111H  ASP*     1.3    71.5    +      -       -      +
    112H  CYS*     4.0    14.8    -      -       -      -
----------------------------------------------------------
 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