Contacts of the helix formed by residues 96 - 111 (chain A) in PDB entry 1GV5


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 THR 96 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  LYS*     6.2     0.9    -      -       -      +
     94A  PRO      4.6     5.2    -      -       -      +
     95A  TRP*     1.3    77.7    -      -       -      +
     97A  LYS*     1.3    67.9    +      -       -      +
     98A  GLU*     3.5    18.1    +      -       -      +
     99A  GLU*     3.1    36.2    +      -       -      +
    100A  ASP*     3.1    24.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  TRP      5.8     0.7    -      -       -      +
     96A  THR*     1.3    75.4    -      -       -      +
     98A  GLU*     1.3    75.0    +      -       -      +
    100A  ASP*     3.4    11.1    +      -       -      +
    101A  GLN*     3.0    23.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96A  THR*     3.5    20.1    +      -       -      +
     97A  LYS*     1.3    88.8    +      -       -      +
     99A  GLU*     1.3    65.2    +      -       +      +
    101A  GLN*     3.3     6.7    +      -       -      +
    102A  ARG*     3.0    31.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92A  LYS*     3.4    29.1    +      -       -      +
     94A  PRO      3.9     1.4    -      -       -      +
     95A  TRP*     3.5    14.8    -      -       +      -
     96A  THR*     3.1    37.8    +      -       -      +
     98A  GLU*     1.3    77.2    -      -       +      +
    100A  ASP*     1.3    63.1    +      -       -      +
    102A  ARG*     3.1    11.7    +      -       -      +
    103A  VAL*     2.9    28.1    +      -       -      +
    122A  LEU*     4.7    10.8    -      -       +      +
    123A  LYS      4.3     0.5    -      -       -      +
    125A  ARG*     2.8    53.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  TRP*     3.8     6.5    -      -       -      +
     96A  THR      3.1    18.1    +      -       -      +
     97A  LYS*     3.6    12.4    -      -       -      +
     99A  GLU*     1.3    76.5    -      -       -      +
    101A  GLN*     1.3    62.4    +      -       -      +
    103A  VAL*     3.3     4.6    +      -       -      +
    104A  ILE*     3.1    29.3    +      -       +      +
    133A  ARG*     2.8    52.4    +      -       -      +
    137A  HIS*     4.0     6.6    -      -       -      -
    138A  LEU*     3.9    20.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  LYS      3.0    17.6    +      -       -      +
     98A  GLU*     3.7     7.2    -      -       -      +
     99A  GLU      3.2     0.2    -      -       -      -
    100A  ASP*     1.3    75.2    -      -       -      +
    102A  ARG*     1.3    65.1    +      -       +      +
    104A  ILE*     3.3    29.4    +      -       -      +
    105A  LYS*     3.1    53.1    +      -       +      +
    108A  GLN*     5.6     0.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98A  GLU*     3.0    23.2    +      -       +      +
     99A  GLU*     3.1     9.8    +      -       -      +
    101A  GLN*     1.3    74.6    -      -       +      +
    103A  VAL*     1.3    60.7    +      -       -      +
    105A  LYS*     3.2     9.0    +      -       +      +
    106A  LEU*     2.9    40.6    +      -       +      +
    121A  HIS*     2.9    44.4    +      -       -      +
    122A  LEU*     3.7    25.4    -      -       +      +
    123A  LYS*     5.1     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95A  TRP*     3.5    28.7    -      -       +      -
     99A  GLU      2.9    19.8    +      -       -      +
    100A  ASP*     3.6     7.4    -      -       -      +
    102A  ARG*     1.3    75.6    -      -       -      +
    104A  ILE*     1.3    64.7    +      -       -      +
    106A  LEU*     3.2     7.7    +      -       -      +
    107A  VAL*     2.9    37.6    +      -       +      +
    115A  TRP*     5.1     2.9    -      -       +      -
    118A  ILE*     5.2     3.1    -      -       +      -
    122A  LEU*     3.7    17.0    -      -       +      -
    130A  CYS*     4.6    17.7    -      -       +      +
    133A  ARG*     5.2     0.4    -      -       +      -
    134A  TRP*     4.5     5.2    -      -       +      -
    138A  LEU*     3.8    21.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  ASP*     3.1    16.5    +      -       +      +
    101A  GLN*     3.5    28.9    -      -       -      +
    102A  ARG      3.2     0.2    -      -       -      -
    103A  VAL*     1.3    78.2    -      -       -      +
    105A  LYS*     1.3    61.9    +      -       -      +
    107A  VAL*     3.4     2.6    +      -       -      +
    108A  GLN*     3.1    43.6    +      -       +      +
    134A  TRP*     4.6    18.6    -      -       +      -
    138A  LEU*     4.4    23.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  GLN*     3.1    50.0    +      -       +      +
    102A  ARG*     3.2    11.0    +      -       +      +
    104A  ILE*     1.3    74.8    -      -       -      +
    106A  LEU*     1.3    64.2    +      -       +      +
    108A  GLN*     3.3    18.0    +      -       -      +
    109A  LYS*     3.1    20.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 106 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    102A  ARG*     2.9    30.6    +      -       +      +
    103A  VAL      3.8     3.4    -      -       -      +
    105A  LYS*     1.3    75.2    -      -       +      +
    107A  VAL*     1.3    62.0    +      -       -      +
    109A  LYS*     3.2     8.0    +      -       +      +
    110A  TYR*     2.8    53.7    +      -       +      +
    118A  ILE*     3.8    32.3    -      -       +      +
    121A  HIS*     3.8    43.5    -      -       +      +
    122A  LEU*     4.3    13.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103A  VAL*     2.9    24.6    +      -       +      +
    104A  ILE      3.8     3.8    -      -       -      +
    106A  LEU*     1.3    72.4    -      -       -      +
    108A  GLN*     1.3    63.1    +      -       +      +
    111A  GLY*     2.7    32.2    +      -       -      -
    112A  PRO*     3.6    26.9    -      -       +      +
    115A  TRP*     4.0    16.8    -      -       +      -
    118A  ILE*     4.0    16.8    -      -       +      -
    134A  TRP*     3.9    43.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101A  GLN*     5.6     0.6    -      -       -      +
    104A  ILE*     3.1    40.6    +      -       +      +
    105A  LYS*     3.4    17.4    -      -       -      +
    106A  LEU      3.2     0.2    -      -       -      -
    107A  VAL*     1.3    80.7    -      -       +      +
    109A  LYS*     1.3    60.7    +      -       -      +
    111A  GLY*     4.5     0.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    105A  LYS      3.1    13.1    +      -       -      +
    106A  LEU*     3.6    12.8    -      -       +      +
    107A  VAL      3.2     0.2    -      -       -      -
    108A  GLN*     1.3    81.2    -      -       -      +
    110A  TYR*     1.3   102.3    +      -       +      +
    121A  HIS*     5.1     4.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  LEU*     2.8    33.2    +      -       +      +
    109A  LYS*     1.3   117.4    +      -       +      +
    111A  GLY*     1.3    61.8    +      -       -      +
    113A  LYS*     3.8     1.7    -      -       -      +
    114A  ARG*     2.9    48.9    +      -       +      +
    117A  VAL*     3.7    25.1    -      -       +      +
    118A  ILE*     4.0    23.3    -      -       +      -
    121A  HIS*     3.5    31.0    +      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107A  VAL*     2.7    24.8    +      -       -      -
    108A  GLN      4.5     1.7    +      -       -      -
    109A  LYS      3.6     1.0    -      -       -      -
    110A  TYR*     1.3    74.6    -      -       -      +
    112A  PRO*     1.3    63.6    -      -       -      +
    113A  LYS*     2.5    34.8    +      -       -      +
    118A  ILE*     3.8     8.7    -      -       -      +
----------------------------------------------------------
 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