Contacts of the helix formed by residues 551 - 563 (chain A) in PDB entry 1GGE


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 ASP 551 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509A  ARG*     2.8    26.7    +      -       +      +
    512A  TRP*     3.1    35.7    +      -       +      +
    513A  LEU*     4.6     2.4    -      -       -      +
    547A  LEU      3.1     8.8    +      -       -      +
    548A  ALA      4.4     0.6    +      -       -      -
    549A  HIS      3.9     0.2    -      -       -      -
    550A  ILE*     1.3    86.0    -      -       +      +
    552A  LEU*     1.3    60.1    +      -       -      +
    553A  THR*     3.0    14.4    +      -       -      -
    554A  LEU*     2.9    31.1    +      -       +      +
    555A  ALA*     2.9    24.3    +      -       -      +
    575A  PRO*     5.8     1.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 552 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    548A  ALA*     3.1    35.2    -      -       +      +
    551A  ASP*     1.3    75.3    +      -       -      +
    553A  THR*     1.3    51.8    +      -       -      +
    555A  ALA*     3.6     3.2    -      -       +      +
    556A  GLN*     2.7    50.9    +      -       -      +
    566A  LEU*     5.1     4.3    -      -       +      -
    570A  GLN      3.7    16.2    -      -       -      +
    571A  LEU*     3.1    33.7    -      -       +      +
    573A  ILE      4.2    14.4    -      -       -      +
    575A  PRO*     6.0     2.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 553 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512A  TRP*     4.6    11.0    -      -       +      -
    551A  ASP*     3.0    13.2    +      -       -      -
    552A  LEU*     1.3    76.5    -      -       -      +
    554A  LEU*     1.3    59.6    +      -       -      +
    556A  GLN*     3.8     8.1    -      -       -      +
    557A  ALA*     2.9    31.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 554 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254A  MET*     3.8    30.5    -      -       +      -
    512A  TRP*     3.6    39.7    -      -       +      -
    523A  ILE*     4.3    11.0    -      -       +      -
    524A  VAL*     4.0    11.0    -      -       +      -
    527A  PHE*     4.5     5.2    -      -       +      -
    547A  LEU*     4.3    15.0    -      -       +      -
    550A  ILE*     4.2    19.5    -      -       +      -
    551A  ASP*     2.9    20.0    +      -       +      +
    553A  THR*     1.3    76.7    -      -       -      +
    555A  ALA*     1.3    63.5    +      -       -      +
    557A  ALA*     3.2     4.7    +      -       -      +
    558A  VAL*     3.2    37.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 555 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    544A  VAL*     4.2     6.7    -      -       -      +
    547A  LEU*     3.7    14.1    -      -       +      -
    548A  ALA*     3.5    42.0    -      -       +      +
    551A  ASP      2.9    12.4    +      -       -      +
    552A  LEU*     3.6     4.7    -      -       -      +
    554A  LEU*     1.3    76.5    -      -       -      +
    556A  GLN*     1.3    60.2    +      -       -      +
    558A  VAL*     3.5     1.7    +      -       -      +
    559A  ALA*     2.9    30.0    +      -       -      +
    566A  LEU*     4.0    12.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 556 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    552A  LEU*     2.7    32.7    +      -       -      +
    553A  THR*     3.9     7.7    -      -       -      +
    555A  ALA*     1.3    74.7    -      -       -      +
    557A  ALA*     1.3    56.8    +      -       -      +
    559A  ALA*     3.8     3.8    -      -       +      +
    560A  LYS*     3.0    30.5    +      -       -      +
    566A  LEU*     3.4    22.6    -      -       +      +
    571A  LEU*     3.4    27.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 557 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    512A  TRP*     6.1     0.2    -      -       +      -
    524A  VAL*     3.7    31.0    -      -       +      -
    553A  THR*     2.9    20.6    +      -       +      +
    554A  LEU      3.9     0.2    -      -       -      +
    556A  GLN*     1.3    75.4    -      -       -      +
    558A  VAL*     1.3    64.5    +      -       -      +
    560A  LYS*     3.5     6.9    +      -       -      +
    561A  ASN*     3.4    24.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 558 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524A  VAL*     4.1    14.1    -      -       -      +
    527A  PHE*     3.9    25.4    -      -       +      -
    528A  SER*     3.8    11.7    -      -       -      +
    531A  LEU*     4.2     6.5    -      -       +      -
    544A  VAL*     4.2     3.6    -      -       +      -
    547A  LEU*     3.9    28.7    -      -       +      -
    554A  LEU*     3.2    27.2    +      -       +      +
    555A  ALA      3.9     2.7    -      -       -      +
    557A  ALA*     1.3    74.3    -      -       -      +
    559A  ALA*     1.3    65.6    +      -       -      +
    561A  ASN*     3.1     5.9    +      -       -      +
    562A  LEU*     3.1    38.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 559 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    544A  VAL*     4.0    12.7    -      -       +      +
    555A  ALA      2.9    19.6    +      -       -      +
    556A  GLN*     3.8     4.9    -      -       -      +
    558A  VAL*     1.3    76.8    -      -       -      +
    560A  LYS*     1.3    61.6    +      -       -      +
    562A  LEU*     3.0     3.5    +      -       -      +
    563A  GLY      2.9     4.3    +      -       -      -
    564A  ILE*     2.8    51.3    +      -       +      +
    566A  LEU*     3.9    22.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 560 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    556A  GLN      3.0    18.2    +      -       -      +
    557A  ALA*     3.7     7.9    -      -       -      +
    558A  VAL      3.3     0.2    -      -       -      -
    559A  ALA*     1.3    74.7    -      -       -      +
    561A  ASN*     1.3    68.1    +      -       -      +
    563A  GLY*     3.1    12.1    +      -       -      +
    564A  ILE      4.0     3.8    +      -       -      -
    636D  ARG*     3.7    16.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 561 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    524A  VAL*     3.7    14.3    -      -       -      +
    525A  ASP*     4.3     8.3    +      -       -      -
    528A  SER*     2.8    39.6    +      -       -      +
    557A  ALA      3.4    13.0    +      -       -      +
    558A  VAL      3.1     4.3    +      -       -      +
    560A  LYS*     1.3    83.3    +      -       -      +
    562A  LEU*     1.3    59.8    +      -       -      +
    563A  GLY      3.3     0.9    -      -       -      -
    636D  ARG*     3.3    13.1    -      -       +      +
    637D  MET*     3.0    23.2    +      -       -      +
    653D  THR*     5.4     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 562 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    528A  SER*     3.7    26.0    -      -       -      +
    531A  LEU*     3.8    33.0    -      -       +      -
    532A  SER*     4.0    13.0    -      -       -      +
    540A  ARG*     4.2    14.6    +      -       +      -
    544A  VAL*     3.9    19.5    -      -       +      -
    558A  VAL*     3.1    14.7    +      -       +      +
    559A  ALA      3.0     6.8    +      -       -      +
    561A  ASN*     1.3    81.8    -      -       -      +
    563A  GLY*     1.3    62.7    +      -       -      +
    564A  ILE*     3.2    24.0    +      -       +      +
    637D  MET*     3.5    32.7    -      -       +      +
    638D  GLY*     3.5     6.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 563 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    559A  ALA      2.9     3.5    +      -       -      -
    560A  LYS*     3.1    12.0    +      -       -      -
    561A  ASN      3.3     0.8    -      -       -      -
    562A  LEU*     1.3    80.8    -      -       -      +
    564A  ILE*     1.3    59.9    +      -       -      +
    565A  GLU      4.3     0.2    +      -       -      -
    636D  ARG*     4.2    11.9    -      -       -      -
    637D  MET      3.5    13.5    +      -       -      -
    638D  GLY*     4.3     6.7    -      -       -      -
    639D  GLU      5.3     0.7    +      -       -      -
----------------------------------------------------------
 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