Contacts of the helix formed by residues 91 - 113 (chain A) in PDB entry 2GC5


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 A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     80A  ASN*     4.4     0.2    -      -       -      +
     89A  PRO      3.5     8.5    -      -       -      +
     90A  ILE*     1.3    88.1    -      -       +      +
     92A  ASP*     1.3    66.1    +      -       -      +
     93A  ALA*     3.2     4.5    -      -       +      +
     94A  ALA*     3.2    16.2    +      -       +      +
     95A  LEU*     2.9    20.6    +      -       -      +
    131A  TYR*     3.7    14.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 92 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  TYR*     3.5    29.4    -      -       +      -
     78A  ARG*     2.7    47.1    +      -       -      -
     80A  ASN*     2.7    20.7    +      -       -      +
     91A  PRO*     1.3    71.3    -      -       -      +
     93A  ALA*     1.3    58.0    +      -       -      +
     95A  LEU*     3.3     5.0    +      -       -      +
     96A  VAL*     3.0    32.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 93 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91A  PRO*     3.2     4.5    -      -       +      +
     92A  ASP*     1.3    75.1    -      -       -      +
     94A  ALA*     1.3    61.2    +      -       -      +
     96A  VAL*     3.4    10.4    +      -       -      +
     97A  ASN*     3.0    36.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 94 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  ILE*     3.8    15.9    -      -       +      +
     91A  PRO*     3.2    26.1    +      -       +      +
     93A  ALA*     1.3    77.8    -      -       -      +
     95A  LEU*     1.3    56.4    +      -       -      +
     97A  ASN*     3.4     7.2    +      -       -      +
     98A  ALA*     2.8    30.8    +      -       -      +
    131A  TYR*     4.3    12.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 95 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3A  TYR*     3.9    24.5    -      -       +      -
      6A  THR*     4.4     3.6    -      -       +      -
      7A  VAL*     4.3     8.3    -      -       +      -
     10A  ILE*     4.4     2.7    -      -       +      -
     79A  PHE*     3.8    37.0    -      -       +      -
     80A  ASN*     4.3     8.3    -      -       -      +
     83A  ILE*     5.2     0.9    -      -       +      -
     90A  ILE*     3.7    27.5    -      -       +      +
     91A  PRO      2.9    12.7    +      -       -      +
     92A  ASP*     3.3     9.8    +      -       -      +
     94A  ALA*     1.3    72.8    -      -       -      +
     96A  VAL*     1.3    60.0    +      -       -      +
     98A  ALA*     3.2     0.8    +      -       -      -
     99A  VAL*     2.8    52.5    +      -       +      +
    127A  LEU*     4.3    15.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 96 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     3.4    22.2    -      -       -      +
      2A  ASN*     3.8     2.7    -      -       -      +
      3A  TYR*     3.6    36.1    -      -       +      +
      6A  THR*     4.0    12.5    +      -       -      +
     92A  ASP      3.0    21.3    +      -       -      +
     93A  ALA*     3.5    11.0    -      -       -      +
     95A  LEU*     1.3    76.4    -      -       -      +
     97A  ASN*     1.3    66.1    +      -       -      +
     99A  VAL*     3.5     2.4    +      -       -      +
    100A  ALA*     3.0    29.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 97 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93A  ALA*     3.0    24.1    +      -       -      +
     94A  ALA*     3.9     6.5    -      -       -      +
     96A  VAL*     1.3    84.8    -      -       -      +
     98A  ALA*     1.3    57.1    +      -       -      +
    100A  ALA*     3.4     8.0    +      -       -      +
    101A  PHE*     3.1    28.6    +      -       -      +
    130A  TRP*     5.3     1.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 98 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90A  ILE*     4.6     4.5    -      -       +      -
     94A  ALA      2.8    19.7    +      -       -      +
     95A  LEU*     3.7     4.9    -      -       -      +
     97A  ASN*     1.3    75.0    -      -       -      +
     99A  VAL*     1.3    65.4    +      -       -      +
    101A  PHE*     3.2     2.6    +      -       -      +
    102A  VAL*     3.0    28.4    +      -       -      +
    127A  LEU*     3.8    26.5    -      -       +      -
    130A  TRP*     3.9    26.5    -      -       +      -
    131A  TYR*     5.1     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 99 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     3.6    28.7    -      -       +      -
      6A  THR*     3.1    31.6    -      -       +      -
      9A  TYR*     3.6    20.6    -      -       +      -
     10A  ILE*     3.7    23.8    -      -       +      -
     95A  LEU*     2.8    16.1    +      -       +      +
     96A  VAL      3.8     1.6    -      -       -      +
     98A  ALA*     1.3    75.5    -      -       -      +
    100A  ALA*     1.3    58.8    +      -       -      +
    103A  ARG*     2.8    28.6    +      -       -      +
    123A  PHE*     4.0     4.6    -      -       +      -
    127A  LEU*     3.7    16.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 100 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     5.6     3.1    -      -       +      -
     96A  VAL*     3.0    19.6    +      -       +      +
     97A  ASN*     3.5    10.3    -      -       -      +
     98A  ALA      3.2     0.2    -      -       -      -
     99A  VAL*     1.3    78.9    -      -       -      +
    101A  PHE*     1.3    56.0    +      -       -      +
    103A  ARG*     3.5     8.7    -      -       -      +
    104A  ALA*     3.0    28.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 101 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ALA      5.6     2.0    -      -       -      -
     32A  LEU*     3.7    23.3    -      -       +      -
     97A  ASN      3.1    16.4    +      -       -      +
     98A  ALA      3.2     4.2    +      -       -      +
    100A  ALA*     1.3    74.1    -      -       -      +
    102A  VAL*     1.3    64.0    +      -       +      +
    104A  ALA*     3.4     7.8    +      -       +      +
    105A  ALA*     3.2    20.3    +      -       +      +
    108A  ARG*     5.1     8.6    +      -       -      -
    130A  TRP*     3.2    53.6    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 102 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  LEU*     3.9    24.6    -      -       +      +
     32A  LEU*     4.1    23.1    -      -       +      -
     98A  ALA      3.0    16.8    +      -       -      +
    101A  PHE*     1.3    76.2    -      -       +      +
    103A  ARG*     1.3    61.1    +      -       -      +
    105A  ALA*     3.4     2.9    +      -       -      +
    106A  LEU*     2.9    26.9    +      -       -      +
    123A  PHE*     3.4    36.6    -      -       +      +
    127A  LEU*     4.0    28.5    -      -       +      +
    130A  TRP*     4.9     6.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 103 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1A  MET*     4.0    35.0    -      -       -      +
      9A  TYR*     3.4    45.5    -      -       +      +
     99A  VAL      2.8    19.7    +      -       -      +
    100A  ALA*     3.5     7.4    -      -       -      +
    102A  VAL*     1.3    76.2    -      -       -      +
    104A  ALA*     1.3    57.9    +      -       -      +
    106A  LEU*     3.0     6.1    +      -       -      +
    107A  GLU*     2.8    57.5    +      -       +      +
    123A  PHE*     4.0     2.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 104 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100A  ALA      3.0    17.5    +      -       -      +
    101A  PHE*     3.7     9.2    -      -       +      +
    102A  VAL      3.3     0.2    -      -       -      -
    103A  ARG*     1.3    75.9    -      -       -      +
    105A  ALA*     1.3    62.7    +      -       -      +
    107A  GLU*     3.3    10.0    +      -       -      +
    108A  ARG*     3.0    39.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 105 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  LEU*     4.1     4.5    -      -       +      -
     31A  ALA*     3.9    14.9    -      -       +      +
     32A  LEU*     3.7    27.1    -      -       +      -
    101A  PHE*     3.2     7.3    +      -       +      +
    102A  VAL      3.5     8.7    -      -       -      +
    104A  ALA*     1.3    76.5    -      -       -      +
    106A  LEU*     1.3    62.8    +      -       -      +
    108A  ARG*     3.3    29.9    +      -       -      +
    109A  LEU*     3.1    27.5    +      -       -      +
----------------------------------------------------------
 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
----------------------------------------------------------
      9A  TYR*     3.8    14.1    -      -       -      +
     13A  PHE*     3.6    32.3    -      -       +      -
     28A  LEU*     4.3    13.2    -      -       +      +
    102A  VAL      2.9    15.4    +      -       -      +
    103A  ARG*     3.3     8.5    -      -       -      +
    105A  ALA*     1.3    75.5    -      -       -      +
    107A  GLU*     1.3    59.6    +      -       +      +
    109A  LEU*     3.2     6.7    +      -       -      +
    110A  GLN*     3.0    54.5    +      -       -      +
    116A  PHE*     3.6    33.7    -      -       +      +
    117A  ASN*     4.4     6.7    -      -       -      +
    118A  VAL*     4.8     8.7    -      -       +      -
    123A  PHE*     4.8     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 107 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  TYR*     5.8     0.4    -      -       -      +
    103A  ARG*     2.8    60.8    +      -       +      +
    104A  ALA*     3.7     9.0    -      -       -      +
    106A  LEU*     1.3    78.0    -      -       +      +
    108A  ARG*     1.3    60.5    +      -       -      +
    110A  GLN*     3.2    19.2    +      -       -      +
    111A  GLN*     3.1    25.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 108 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31A  ALA*     3.7    23.8    +      -       +      +
    101A  PHE*     5.1     8.9    +      -       -      -
    104A  ALA*     3.0    20.7    +      -       -      +
    105A  ALA*     3.4    44.4    -      -       -      +
    107A  GLU*     1.3    75.7    -      -       -      +
    109A  LEU*     1.3    60.9    +      -       +      +
    111A  GLN*     3.3    30.6    +      -       -      +
    112A  GLN*     3.5    16.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 109 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  THR*     3.6    46.0    -      -       +      +
     28A  LEU*     3.9    12.6    -      -       +      -
     30A  HIS*     5.9     3.4    -      -       -      +
     31A  ALA*     3.8    20.6    -      -       +      -
    105A  ALA      3.1    15.0    +      -       -      +
    106A  LEU*     3.2     8.5    +      -       -      +
    108A  ARG*     1.3    73.2    -      -       +      +
    110A  GLN*     1.3    57.7    +      -       -      +
    111A  GLN      3.1     4.7    -      -       -      -
    112A  GLN*     3.1    25.8    +      -       +      +
    113A  GLN*     2.8    32.1    +      -       +      +
    116A  PHE*     3.8    24.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 110 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    106A  LEU*     3.0    43.2    +      -       +      +
    107A  GLU*     3.2    22.8    +      -       -      +
    109A  LEU*     1.3    76.1    -      -       -      +
    111A  GLN*     1.3    59.1    +      -       -      +
    112A  GLN      3.4     0.2    -      -       -      -
    113A  GLN      3.3     8.7    -      -       -      +
    114A  ALA*     3.3    30.0    -      -       -      +
    116A  PHE*     3.0    30.7    -      -       +      +
    117A  ASN*     4.0    13.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 111 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107A  GLU      3.1     9.8    +      -       -      +
    108A  ARG*     3.3    28.6    -      -       -      +
    109A  LEU      3.1     0.2    -      -       -      -
    110A  GLN*     1.3    79.6    -      -       -      +
    112A  GLN*     1.3    57.6    +      -       -      +
    114A  ALA      5.3     0.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 112 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  ARG*     3.5    14.1    +      -       -      +
    109A  LEU*     3.3    33.9    -      -       +      +
    111A  GLN*     1.3    80.2    -      -       -      +
    113A  GLN*     1.3    57.6    +      -       +      +
    114A  ALA      4.0     1.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 113 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27A  THR*     5.0     8.5    +      -       -      +
    109A  LEU*     2.8    12.0    +      -       -      +
    110A  GLN*     3.3    14.7    -      -       -      -
    112A  GLN*     1.3    79.3    -      -       +      +
    114A  ALA*     1.3    64.9    +      -       -      +
    115A  ASP      4.5     3.1    -      -       -      +
    116A  PHE*     3.0    52.1    +      -       +      +
----------------------------------------------------------
 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