Contacts of the strand formed by residues 183 - 189 (chain A) in PDB entry 1GC5


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 ILE 183 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  ILE*     3.5    20.9    -      -       +      +
     43A  ALA*     3.6    30.7    -      -       +      +
    109A  ARG*     3.8    15.0    -      -       -      +
    113A  TRP*     4.5    13.5    -      -       +      -
    116A  LEU*     5.5     0.2    -      -       +      -
    147A  LEU*     5.3     1.8    -      -       +      -
    181A  GLU*     3.5    36.9    +      -       +      +
    182A  LEU*     1.3    72.8    -      -       -      +
    184A  HIS*     1.3    71.5    +      -       -      +
    185A  TYR*     3.9    31.3    +      -       +      +
    210A  ALA*     3.3    34.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 184 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  ASN*     3.3    29.0    +      -       -      -
     41A  ILE      2.8    12.6    +      -       -      +
     42A  ASP*     3.5    12.4    -      -       -      +
     43A  ALA      2.9    22.0    +      -       -      -
     96A  GLU*     4.5     6.1    -      -       -      -
    120A  GLY      5.9     0.4    -      -       -      -
    182A  LEU      4.1     0.2    +      -       -      -
    183A  ILE*     1.3    80.0    +      -       -      +
    185A  TYR*     1.3    62.2    +      -       -      +
    186A  ILE*     3.4     4.8    +      -       +      +
    207A  ILE*     4.2    16.2    -      -       +      -
    208A  ALA      3.7     4.7    -      -       -      -
    209A  ASN*     2.8    28.9    +      -       +      +
    211A  ASP*     2.9    43.7    +      -       +      -
    214A  ASN*     5.4     2.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 185 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  ALA*     3.3    21.8    -      -       +      +
    105A  ARG*     4.1     4.5    +      -       -      +
    108A  LEU*     3.4    51.6    -      -       +      +
    109A  ARG*     3.7    22.7    +      -       -      +
    112A  GLY      5.0     4.3    -      -       -      -
    113A  TRP*     3.9    20.8    -      +       +      -
    183A  ILE*     3.9    37.5    -      -       +      +
    184A  HIS*     1.3    69.8    -      -       -      +
    186A  ILE*     1.3    62.2    +      -       -      +
    187A  TYR*     3.7    29.9    -      +       +      +
    206A  PHE      3.5     2.1    -      -       -      +
    207A  ILE*     3.4     3.5    -      -       -      -
    208A  ALA*     2.9    43.4    +      -       +      +
    210A  ALA*     4.3    11.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 186 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  ASP*     3.5    35.9    -      -       +      +
     43A  ALA      2.7    11.9    +      -       -      +
     44A  ILE*     3.3    13.3    -      -       +      +
     45A  LYS      2.9    27.7    +      -       -      +
    184A  HIS*     3.8     9.4    -      -       +      +
    185A  TYR*     1.3    74.8    -      -       -      +
    187A  TYR*     1.3    64.4    +      -       -      +
    188A  GLU*     3.8    16.4    -      -       -      +
    205A  ARG*     3.7    31.4    -      -       +      -
    206A  PHE      3.7     2.2    -      -       -      -
    207A  ILE*     3.8    25.1    -      -       +      +
    447A  VAL*     4.3    17.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 187 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  LYS*     3.4    47.6    -      -       +      -
     47A  LEU*     3.8    25.8    -      -       +      -
     81A  LEU*     4.6     6.3    -      -       +      -
     85A  ILE*     4.3    19.5    -      -       +      -
    108A  LEU*     3.3    27.9    +      -       +      +
    111A  TRP*     3.6    24.9    -      +       -      +
    112A  GLY      4.9     1.9    +      -       -      -
    185A  TYR*     3.7    39.2    -      +       +      +
    186A  ILE*     1.3    71.1    -      -       -      +
    188A  GLU*     1.3    60.9    +      -       -      +
    189A  PHE*     4.4     4.0    -      -       -      -
    205A  ARG*     3.0     5.2    -      -       -      -
    206A  PHE*     2.8    47.3    +      +       +      +
    208A  ALA*     4.3    10.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 188 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  ILE*     3.4    26.7    -      -       +      +
     45A  LYS      3.4     4.3    +      -       -      +
     46A  TYR*     3.0    39.0    +      -       +      +
     47A  LEU*     3.2    25.6    +      -       -      +
    186A  ILE*     3.8    15.3    -      -       +      +
    187A  TYR*     1.3    76.6    -      -       -      +
    189A  PHE*     1.3    61.7    +      -       -      +
    190A  PRO*     4.7     1.0    -      -       -      +
    203A  GLU*     3.7    11.2    -      -       -      +
    204A  ASN      3.5    12.6    -      -       -      +
    205A  ARG*     4.3     6.2    -      -       +      +
    444A  LYS      5.5     2.8    -      -       -      +
    445A  SER*     4.7     8.7    -      -       -      +
    446A  THR*     5.9     0.7    -      -       -      +
    447A  VAL*     4.2    14.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 189 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  LEU*     4.0     8.7    -      -       +      -
     85A  ILE*     4.4     1.1    -      -       +      -
     88A  SER*     3.0    44.9    -      -       -      -
     89A  ILE*     3.5    28.9    -      -       +      -
     92A  GLY*     4.7     1.1    -      -       -      -
    187A  TYR      4.4     3.4    -      -       -      -
    188A  GLU*     1.3    77.1    -      -       -      +
    190A  PRO*     1.3    73.3    -      -       +      +
    193A  PHE*     3.7    23.3    -      -       +      -
    200A  ALA*     4.1     8.3    -      -       +      -
    202A  ARG      3.5    13.0    -      -       -      -
    203A  GLU*     2.8    23.1    -      -       -      +
    204A  ASN*     3.1    39.3    +      -       +      -
    205A  ARG*     4.0     9.0    -      -       -      -
    206A  PHE*     4.6     1.3    -      -       +      -
----------------------------------------------------------
 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