Contacts of the helix formed by residues 522 - 535 (chain D) in PDB entry 3GEB


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 CYS 522 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    293D  ARG*     4.8     2.9    -      -       +      +
    294D  TYR*     3.2    20.6    -      -       +      +
    424D  TRP*     3.9     8.5    -      -       -      -
    520D  ILE*     3.3     7.9    +      -       -      +
    521D  SER*     1.3    85.6    -      -       -      +
    523D  HIS*     1.3    67.2    -      -       -      +
    524D  ALA*     3.2    16.4    -      -       -      +
    525D  ASP*     3.2    33.4    +      -       -      +
    526D  LEU      3.3     7.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 523 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    290D  PHE*     6.5     0.2    -      +       -      -
    294D  TYR*     3.1    20.9    +      +       +      -
    421D  THR      3.6    18.4    +      -       -      -
    422D  ASP*     3.1    27.6    +      -       +      -
    424D  TRP*     3.6    35.8    -      +       +      -
    427D  HIS*     2.8    35.1    +      +       -      -
    522D  CYS*     1.3    75.7    -      -       -      +
    524D  ALA*     1.3    63.2    +      -       -      +
    526D  LEU*     3.0    19.8    +      -       +      +
    527D  GLU*     3.1    23.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 524 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531A  HIS*     3.8    17.1    -      -       +      -
    522D  CYS*     3.2    14.6    -      -       -      +
    523D  HIS*     1.3    78.3    -      -       -      +
    525D  ASP*     1.3    52.8    +      -       -      +
    527D  GLU*     3.2    10.8    +      -       -      +
    528D  ALA*     2.8    33.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 525 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531A  HIS*     2.9    21.1    +      -       -      -
    535A  LEU*     3.7    26.1    -      -       +      +
    519D  ARG      3.6    16.1    -      -       -      +
    520D  ILE*     3.8    10.9    -      -       +      +
    521D  SER*     3.0    30.8    +      -       -      -
    522D  CYS*     3.2    25.2    +      -       -      +
    524D  ALA*     1.3    73.4    -      -       -      +
    526D  LEU*     1.3    60.6    +      -       -      +
    528D  ALA*     3.6     2.4    -      -       -      +
    529D  LEU*     2.9    28.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 526 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273D  TRP*     5.7     2.9    -      -       +      -
    278D  THR      4.1    11.9    -      -       -      +
    424D  TRP*     3.3    53.4    -      -       +      +
    427D  HIS*     4.1    15.3    -      -       +      +
    428D  SER*     3.9    24.5    -      -       -      +
    431D  ALA*     5.0     5.4    -      -       +      -
    520D  ILE*     4.1    14.5    -      -       +      +
    522D  CYS      3.3     6.0    +      -       -      +
    523D  HIS*     3.0    16.5    +      -       -      +
    525D  ASP*     1.3    79.6    -      -       -      +
    527D  GLU*     1.3    57.0    +      -       -      +
    529D  LEU*     3.2    12.7    +      -       +      +
    530D  ARG*     2.9    28.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 527 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427D  HIS*     3.8    16.9    +      -       +      -
    523D  HIS*     3.1    36.5    +      -       +      +
    524D  ALA*     3.7    10.3    -      -       -      +
    526D  LEU*     1.3    74.5    -      -       -      +
    528D  ALA*     1.3    64.5    +      -       -      +
    530D  ARG*     2.8    44.0    +      -       -      +
    531D  HIS*     3.1    23.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 528 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  TRP*     6.0     0.2    -      -       -      -
    528A  ALA      5.8     0.9    -      -       -      +
    531A  HIS*     3.8    22.0    -      -       +      +
    532A  ALA*     5.3     7.7    -      -       +      +
    535A  LEU*     3.8    19.5    -      -       +      -
    518D  TRP*     4.8     3.0    -      -       +      -
    524D  ALA      2.8    16.6    +      -       -      +
    525D  ASP      3.6     6.3    -      -       -      +
    526D  LEU      3.2     0.2    -      -       -      -
    527D  GLU*     1.3    77.1    -      -       -      +
    529D  LEU*     1.3    58.0    +      -       -      +
    531D  HIS*     3.3    10.2    +      -       -      +
    532D  ALA*     3.0    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 529 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273D  TRP*     4.0    22.2    -      -       +      -
    431D  ALA*     5.2     0.7    -      -       +      -
    500D  ILE*     3.8    31.2    -      -       +      -
    518D  TRP*     3.6    26.2    -      -       +      -
    520D  ILE*     3.8    11.4    -      -       +      -
    525D  ASP      2.9    14.8    +      -       -      +
    526D  LEU*     3.3    12.8    -      -       +      +
    528D  ALA*     1.3    74.2    -      -       -      +
    530D  ARG*     1.3    67.1    +      -       -      +
    532D  ALA*     2.8    16.7    +      -       -      +
    533D  LEU*     2.9    21.9    +      -       +      +
    538D  LEU*     3.2    35.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 530 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427D  HIS*     3.2    45.0    +      -       -      +
    430D  LYS*     3.6    35.1    -      -       +      +
    431D  ALA*     4.3    22.7    -      -       +      +
    434D  LEU*     4.3     2.9    -      -       +      +
    526D  LEU      2.9    14.0    +      -       -      +
    527D  GLU*     2.8    55.7    +      -       -      +
    528D  ALA      3.5     0.2    -      -       -      -
    529D  LEU*     1.3    72.3    -      -       -      +
    531D  HIS*     1.3    57.2    +      -       -      +
    533D  LEU*     3.3     7.1    +      -       -      +
    534D  GLU*     3.0    43.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 531 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  TRP*     3.4    31.7    -      +       -      -
    528A  ALA*     4.8    10.3    +      -       +      +
    527D  GLU      3.1    17.4    +      -       -      +
    528D  ALA*     3.5     8.4    +      -       -      +
    529D  LEU      3.0     0.2    -      -       -      -
    530D  ARG*     1.3    77.7    -      -       -      +
    532D  ALA*     1.3    62.3    +      -       -      +
    534D  GLU*     3.3    14.6    +      -       +      +
    535D  LEU*     3.2    57.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 532 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    518A  TRP*     5.1     2.7    -      -       +      -
    532A  ALA*     5.3     3.1    -      -       +      -
    518D  TRP*     3.8    26.7    -      -       +      -
    528D  ALA      3.0    12.2    +      -       -      +
    529D  LEU      2.8    10.0    +      -       -      +
    531D  HIS*     1.3    79.6    -      -       -      +
    533D  LEU*     1.3    60.4    +      -       -      +
    535D  LEU*     3.6     0.8    +      -       -      -
    536D  GLU      3.3     1.9    +      -       -      -
    537D  TYR*     2.9    49.1    +      -       +      +
    538D  LEU*     3.1    11.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 533 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271D  PHE*     3.9    25.1    -      -       +      -
    273D  TRP*     4.9     0.9    -      -       +      -
    431D  ALA*     3.8    33.7    -      -       +      +
    434D  LEU*     3.8    18.7    -      -       +      +
    435D  ILE*     3.8    22.0    -      -       +      -
    438D  ARG*     2.8    24.7    +      -       -      +
    529D  LEU*     2.9    30.6    +      -       +      +
    530D  ARG*     3.5     7.0    -      -       -      +
    532D  ALA*     1.3    75.4    -      -       -      +
    534D  GLU*     1.3    65.2    +      -       -      +
    536D  GLU*     3.1     4.0    +      -       -      +
    538D  LEU*     3.3    31.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 534 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519C  ARG*     3.2    38.5    +      -       -      -
    430D  LYS*     5.3     8.3    -      -       -      +
    434D  LEU*     3.8    21.5    -      -       +      +
    530D  ARG*     3.0    34.1    +      -       +      +
    531D  HIS*     3.3    19.7    -      -       +      +
    533D  LEU*     1.3    79.5    -      -       -      +
    535D  LEU*     1.3    64.9    +      -       +      +
    536D  GLU*     3.2    12.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 535 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516A  PRO*     3.4    14.0    -      -       -      +
    517A  PHE      4.1    20.4    +      -       -      +
    518A  TRP*     3.7    34.1    -      -       +      -
    519A  ARG      5.3     2.0    -      -       -      +
    531D  HIS*     3.2    48.0    +      -       +      +
    532D  ALA      3.6     0.9    +      -       -      +
    534D  GLU*     1.3    81.4    -      -       +      +
    536D  GLU*     1.3    70.7    +      -       -      +
    537D  TYR*     2.9    15.6    +      -       +      +
----------------------------------------------------------
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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