Contacts of the helix formed by residues 295 - 304 (chain A) in PDB entry 1GGT


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 SER 295 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  TRP*     3.0    20.5    +      -       -      -
    226A  SER      2.8     8.2    +      -       -      -
    227A  TYR      3.9     3.6    -      -       -      -
    294A  GLY*     1.3    70.1    -      -       -      -
    296A  VAL*     1.3    64.8    +      -       -      +
    297A  ASP      3.2     2.7    -      -       -      -
    298A  ILE*     3.0     5.5    +      -       -      +
    299A  LEU*     3.0    26.7    +      -       -      +
    319A  GLY      3.2    11.1    +      -       -      -
    320A  VAL*     3.4    17.8    +      -       -      -
    323A  THR*     2.8    32.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 296 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226A  SER*     4.3     9.4    -      -       -      +
    227A  TYR      4.3     0.7    -      -       -      +
    228A  GLY*     3.5    40.2    -      -       -      +
    231A  GLU*     4.0     8.7    -      -       +      -
    234A  ILE*     4.0    16.6    -      -       +      -
    294A  GLY      3.7     1.2    -      -       -      -
    295A  SER*     1.3    76.1    -      -       -      +
    297A  ASP*     1.3    58.8    +      -       -      +
    299A  LEU*     4.0     0.6    -      -       -      -
    300A  LEU*     2.9    58.7    +      -       +      +
    323A  THR*     5.8     0.2    -      -       -      +
    668A  ASP*     5.5     3.1    -      -       -      +
    670A  PRO*     5.7     0.4    -      -       +      -
    674A  ARG*     4.3    18.6    -      -       -      +
    675A  PRO*     4.5    16.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 297 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    292A  TRP*     3.6    23.9    -      -       +      -
    293A  THR*     4.8     7.0    +      -       -      +
    294A  GLY      4.5     6.7    +      -       -      +
    296A  VAL*     1.3    79.7    -      -       -      +
    298A  ILE*     1.3    59.1    +      -       -      +
    300A  LEU*     4.0     3.8    -      -       -      +
    301A  GLU*     3.1    33.7    +      -       -      +
    666A  HIS*     5.0     2.6    +      -       -      -
    668A  ASP*     5.4     1.3    +      -       -      +
    675A  PRO*     4.0    29.4    -      -       +      +
    677A  LYS*     2.6    41.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 298 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225A  TRP*     4.3     1.6    -      -       +      -
    274A  VAL*     4.0    14.6    -      -       +      -
    275A  LEU*     3.9    29.2    -      -       +      -
    292A  TRP*     3.7    49.1    -      -       +      +
    294A  GLY      3.7    16.8    -      -       -      +
    295A  SER      3.0     5.5    +      -       -      +
    297A  ASP*     1.3    74.3    -      -       -      +
    299A  LEU*     1.3    55.0    +      -       -      +
    301A  GLU*     3.1     4.8    +      -       -      -
    302A  TYR*     2.8    31.0    +      -       -      +
    309A  VAL*     3.4    14.0    -      -       +      +
    316A  VAL*     3.9    15.3    -      -       +      -
    320A  VAL*     3.9    20.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 299 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234A  ILE*     3.8    31.2    -      -       +      -
    237A  THR*     3.4    32.5    -      -       +      +
    238A  CYS*     4.9     9.6    -      -       -      -
    241A  VAL*     4.9     8.1    -      -       +      -
    274A  VAL*     4.4    16.4    -      -       +      -
    295A  SER*     3.0    20.9    +      -       -      +
    296A  VAL      4.1     1.8    -      -       -      +
    298A  ILE*     1.3    75.3    -      -       -      +
    300A  LEU*     1.3    63.9    +      -       -      +
    302A  TYR*     3.3     6.0    +      -       +      +
    303A  ARG*     3.1    18.5    +      -       -      +
    320A  VAL*     4.0    27.6    -      -       +      +
    323A  THR*     3.9    19.7    -      -       +      -
    324A  PHE*     5.2     4.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 300 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232A  ASP*     4.3     6.1    -      -       -      +
    233A  GLY*     4.4     5.6    -      -       -      +
    234A  ILE*     3.9    17.7    -      -       +      -
    237A  THR*     3.9    15.3    -      -       -      +
    296A  VAL*     2.9    39.4    +      -       +      +
    297A  ASP*     4.1     3.8    -      -       -      +
    299A  LEU*     1.3    73.1    -      -       -      +
    301A  GLU*     1.3    58.9    +      -       -      +
    302A  TYR      3.2     0.5    +      -       -      -
    303A  ARG*     3.4    17.8    +      -       -      +
    304A  SER*     2.6    33.8    +      -       -      +
    674A  ARG*     4.0    23.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 301 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287A  VAL*     5.0     6.9    -      -       -      +
    292A  TRP*     4.2    15.8    -      -       +      -
    297A  ASP*     3.1    21.8    +      -       -      +
    298A  ILE*     3.4     9.4    -      -       -      +
    300A  LEU*     1.3    74.2    -      -       -      +
    302A  TYR*     1.3    55.1    +      -       -      +
    304A  SER*     4.1     3.8    +      -       -      -
    305A  SER*     2.5    42.7    +      -       -      -
    309A  VAL*     3.6    21.7    -      -       +      +
    310A  ARG      5.7     0.3    +      -       -      -
    677A  LYS*     5.2     5.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 302 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237A  THR*     4.5     7.6    -      -       +      -
    240A  TYR*     3.6    26.5    -      +       -      -
    241A  VAL*     4.1    16.9    -      -       +      -
    244A  ARG*     3.2    34.1    +      -       -      +
    265A  MET*     4.3    10.2    -      -       -      +
    271A  ASP      5.9     0.7    -      -       -      -
    273A  GLY      3.5    27.5    +      -       -      -
    274A  VAL*     4.0    24.0    -      -       +      -
    298A  ILE      2.8    12.8    +      -       -      +
    299A  LEU*     3.5    14.1    -      -       +      +
    300A  LEU      3.1     0.2    -      -       -      -
    301A  GLU*     1.3    77.6    -      -       -      +
    303A  ARG*     1.3    59.8    +      -       -      +
    305A  SER*     3.9     3.1    -      -       -      -
    306A  GLU*     2.7    32.8    +      -       -      -
    307A  ASN*     3.7    24.2    -      -       -      -
    309A  VAL*     3.6     9.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 303 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  GLY*     3.6    23.0    +      -       -      -
    236A  ASP*     3.3    30.5    +      -       -      +
    237A  THR*     3.7    19.1    +      -       +      +
    240A  TYR*     4.1    41.1    -      -       +      -
    299A  LEU      3.1    15.5    +      -       -      +
    300A  LEU*     3.4    13.6    +      -       -      +
    302A  TYR*     1.3    75.0    -      -       -      +
    304A  SER*     1.3    67.0    +      -       -      +
    306A  GLU*     3.1    19.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 304 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300A  LEU*     2.6    20.2    +      -       -      +
    301A  GLU*     4.2     3.3    -      -       -      -
    303A  ARG*     1.3    80.8    +      -       -      +
    305A  SER*     1.3    62.1    +      -       -      +
    306A  GLU*     3.9     6.1    -      -       -      +
----------------------------------------------------------
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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