Contacts of the helix formed by residues 36 - 46 (chain F) in PDB entry 1GZ0


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 LEU 36 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8F  ILE*     5.9     3.6    -      -       +      -
     27F  ILE*     4.5     8.7    -      -       +      -
     28F  LEU*     3.5    30.1    -      -       +      -
     33F  ASP*     2.8    41.0    +      -       +      +
     35F  ARG*     1.3    83.3    -      -       +      +
     37F  LEU*     1.3    52.1    +      -       -      +
     38F  PRO      3.4     0.2    -      -       -      -
     39F  LEU*     3.1     9.0    +      -       +      +
     40F  ILE*     2.6    58.6    +      -       +      +
     68F  GLN      4.4     7.4    -      -       -      +
     69F  GLY*     4.5     3.6    -      -       -      +
     70F  ILE*     3.2    34.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 37 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33F  ASP      3.4     8.6    +      -       -      +
     34F  LYS*     4.5     6.1    -      -       -      +
     36F  LEU*     1.3    74.5    -      -       -      +
     38F  PRO*     1.3    68.4    -      -       +      +
     39F  LEU      2.8     6.3    +      -       -      -
     40F  ILE*     4.3    12.6    -      -       +      +
     41F  HIS*     3.0    53.9    +      -       +      +
     44F  GLU*     5.9     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 38 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12F  GLN*     4.2    10.0    -      -       -      +
     34F  LYS      3.1    23.1    -      -       -      +
     35F  ARG*     3.3    21.3    -      -       +      +
     37F  LEU*     1.3    92.5    -      -       +      +
     39F  LEU*     1.3    57.5    +      -       -      +
     41F  HIS*     3.8    16.3    -      -       +      +
     42F  ALA*     4.1     6.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 39 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8F  ILE*     5.2     4.3    -      -       +      -
     11F  VAL*     4.1    18.2    -      -       +      +
     12F  GLN*     3.2    42.8    -      -       +      +
     15F  LEU*     3.7     4.3    -      -       +      +
     27F  ILE*     6.2     0.2    -      -       +      -
     35F  ARG      4.2     6.5    -      -       -      +
     36F  LEU*     3.1    16.4    +      -       +      +
     37F  LEU      2.8     1.2    +      -       -      -
     38F  PRO*     1.3    78.6    -      -       +      +
     40F  ILE*     1.3    57.9    +      -       +      +
     41F  HIS      2.6    15.9    +      -       -      -
     42F  ALA      3.0    12.1    +      -       -      -
     43F  LEU*     3.3    34.2    +      -       +      -
     70F  ILE*     3.8    33.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 40 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27F  ILE*     3.2    41.1    -      -       +      -
     28F  LEU*     6.0     0.2    -      -       +      -
     36F  LEU*     2.6    45.6    +      -       +      +
     37F  LEU*     3.7    13.0    -      -       +      +
     39F  LEU*     1.3    73.0    -      -       +      +
     41F  HIS*     1.3    57.4    +      -       -      +
     43F  LEU*     4.0    14.8    -      -       +      -
     44F  GLU*     2.8    34.6    -      -       +      +
     50F  ILE*     3.4    29.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 41 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  LEU*     3.0    45.7    +      -       +      +
     38F  PRO*     3.8    12.2    -      -       +      +
     39F  LEU      2.6     5.9    +      -       -      -
     40F  ILE*     1.3    75.2    -      -       -      +
     42F  ALA*     1.3    62.7    +      -       -      +
     43F  LEU      3.0     5.1    +      -       -      -
     44F  GLU*     3.1    21.2    +      -       -      +
     45F  SER*     3.2    15.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 42 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12F  GLN*     5.3     2.9    -      -       -      +
     15F  LEU*     3.4    32.5    -      -       +      +
     38F  PRO      4.1     6.9    +      -       -      +
     39F  LEU      3.0     3.7    +      -       -      +
     41F  HIS*     1.3    79.5    -      -       -      +
     43F  LEU*     1.3    60.5    +      -       -      +
     45F  SER*     3.8     9.1    +      -       -      -
     46F  GLN*     3.3    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 43 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11F  VAL*     5.1     2.7    -      -       +      -
     15F  LEU*     3.4    24.5    -      -       +      -
     22F  PHE*     4.0    29.4    -      -       +      -
     25F  VAL*     3.7    35.4    -      -       +      -
     27F  ILE*     6.2     0.2    -      -       +      -
     39F  LEU*     3.3    29.5    +      -       +      +
     40F  ILE*     4.1    11.2    -      -       +      -
     41F  HIS      3.0     0.6    -      -       -      -
     42F  ALA*     1.3    77.0    -      -       -      +
     44F  GLU*     1.3    64.7    +      -       -      +
     46F  GLN*     3.3     7.8    +      -       +      +
     48F  VAL*     3.2    35.6    +      -       +      +
     50F  ILE*     3.5    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 44 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37F  LEU*     5.9     1.6    -      -       -      +
     40F  ILE*     2.8    36.4    -      -       -      +
     41F  HIS*     3.1    14.6    +      -       -      +
     43F  LEU*     1.3    74.9    -      -       -      +
     45F  SER*     1.3    62.2    +      -       -      +
     47F  GLY*     2.9    19.9    +      -       -      -
     48F  VAL      4.7     3.8    -      -       -      +
     50F  ILE*     3.4    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 45 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41F  HIS      3.2    12.2    +      -       -      -
     42F  ALA*     3.9    11.5    -      -       -      -
     44F  GLU*     1.3    80.3    -      -       -      +
     46F  GLN*     1.3    56.9    +      -       -      +
     47F  GLY*     3.1     3.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 46 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15F  LEU*     5.1     9.4    -      -       +      +
     19F  PRO*     4.0    34.9    +      -       +      +
     20F  GLU*     5.6     0.6    -      -       -      +
     42F  ALA      3.3    17.2    +      -       -      +
     43F  LEU*     3.3     8.4    +      -       +      +
     44F  GLU      3.1     0.6    -      -       -      -
     45F  SER*     1.3    79.3    -      -       -      +
     47F  GLY*     1.3    62.9    +      -       -      +
     48F  VAL*     3.5    15.5    +      -       +      +
----------------------------------------------------------
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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