Contacts of the helix formed by residues 656 - 667 (chain 3) in PDB entry 6Q8O


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 656 (chain 3).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6383  LEU*     3.7     8.2    -      -       -      +
    6393  GLN*     5.5     1.3    -      -       -      +
    6543  PHE*     4.8     1.2    -      -       -      +
    6553  ARG*     1.3   115.1    +      -       +      +
    6573  HIS*     1.3    65.2    +      -       -      +
    6583  LEU*     3.4    20.6    -      -       +      +
    6593  GLU*     4.2    15.4    +      -       +      +
    6603  ALA*     3.5    18.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 657 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3523  GLU*     4.0    20.2    +      -       +      -
    6113  ARG*     4.2    40.1    -      -       +      +
    6123  GLY*     4.7     5.1    -      -       -      -
    6133  HIS*     5.2     3.0    +      -       -      -
    6383  LEU*     4.4     6.4    -      -       +      +
    6563  LEU*     1.3    74.8    -      -       -      +
    6583  LEU*     1.3    68.2    +      -       +      +
    6603  ALA*     3.2     4.5    +      -       -      +
    6613  GLN*     2.9    60.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 658 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6563  LEU*     3.4    15.6    -      -       +      +
    6573  HIS*     1.3    85.5    -      -       +      +
    6593  GLU*     1.3    71.8    +      -       +      +
    6613  GLN*     3.1     8.7    +      -       +      +
    6623  LYS*     2.9    33.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 659 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6533  PRO      5.0     9.9    -      -       -      +
    6543  PHE*     4.0     6.1    -      -       +      -
    6553  ARG*     4.1    22.9    +      -       -      +
    6563  LEU*     4.2    18.9    +      -       +      +
    6573  HIS      3.5     0.2    -      -       -      -
    6583  LEU*     1.3    87.7    -      -       -      +
    6603  ALA*     1.3    56.8    +      -       -      +
    6623  LYS*     3.8    24.3    +      -       -      +
    6633  ALA*     2.9    31.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 660 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3523  GLU*     3.5    30.1    -      -       +      -
    6383  LEU*     4.8     3.8    -      -       +      -
    6543  PHE*     3.5    23.0    -      -       +      -
    6563  LEU      3.5    15.8    +      -       -      +
    6573  HIS*     3.2    11.6    +      -       -      +
    6593  GLU*     1.3    79.5    -      -       -      +
    6613  GLN*     1.3    56.5    +      -       -      +
    6633  ALA*     3.4     1.6    +      -       -      +
    6643  LEU*     2.9    35.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 661 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3523  GLU*     2.6    31.9    +      -       -      -
    6133  HIS*     3.2    25.1    +      -       -      -
    6573  HIS*     2.9    40.0    +      -       +      +
    6583  LEU*     3.1     9.8    +      -       +      +
    6603  ALA*     1.3    75.3    -      -       -      +
    6623  LYS*     1.3    58.7    +      -       +      +
    6643  LEU*     3.3    17.8    +      -       -      +
    6653  LYS*     2.9    30.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 662 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6583  LEU*     2.9    20.9    +      -       -      +
    6593  GLU*     3.8    27.3    +      -       -      +
    6613  GLN*     1.3    77.7    -      -       +      +
    6633  ALA*     1.3    58.1    +      -       -      +
    6643  LEU      3.3     0.2    +      -       -      -
    6653  LYS*     3.3     5.9    +      -       -      +
    6663  ALA*     2.9    26.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 663 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3553  LEU*     4.3     4.9    -      -       +      +
    6543  PHE*     3.5    30.3    -      -       +      -
    6593  GLU      2.9    17.6    +      -       -      +
    6623  LYS*     1.3    75.6    -      -       -      +
    6643  LEU*     1.3    57.0    +      -       -      +
    6663  ALA*     3.2    10.9    -      -       -      +
    6673  ARG*     2.9    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 664 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3513  LEU*     4.1    18.4    -      -       +      +
    3523  GLU*     3.8    21.3    -      -       +      +
    3553  LEU*     3.6    12.5    -      -       +      +
    5473  MET*     3.5    32.5    -      -       +      -
    6133  HIS*     5.2     4.0    -      -       +      -
    6603  ALA      2.9    20.3    +      -       -      +
    6613  GLN*     3.4    33.2    -      -       -      +
    6623  LYS      3.2     0.2    -      -       -      -
    6633  ALA*     1.3    73.6    -      -       -      +
    6653  LYS*     1.3    57.2    -      -       -      +
    6673  ARG*     2.7    24.8    +      -       +      +
    6683  LYS      2.9     8.1    +      -       -      -
    6693  VAL*     3.2    30.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 665 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6613  GLN      2.9    16.0    +      -       -      +
    6623  LYS*     3.8     5.8    -      -       -      +
    6643  LEU*     1.3    74.1    -      -       -      +
    6663  ALA*     1.3    58.0    +      -       -      +
    6683  LYS*     2.9    23.7    +      -       -      +
    6693  VAL*     4.1    11.1    -      -       -      +
    6713  GLU*     4.9    16.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 666 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    6623  LYS      2.9    14.4    +      -       -      +
    6633  ALA*     3.2    16.4    -      -       -      +
    6643  LEU      3.0     0.2    -      -       -      -
    6653  LYS*     1.3    78.7    -      -       -      +
    6673  ARG*     1.3    58.8    +      -       +      +
    6683  LYS*     3.1    14.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 667 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    3553  LEU*     4.4    23.2    -      -       +      +
    3583  SER*     4.9     5.1    +      -       -      -
    3593  GLU*     4.5    15.8    +      -       -      +
    5463  ALA      4.0    19.1    +      -       -      -
    5473  MET*     4.7    27.4    +      -       +      +
    5483  GLY*     5.2     3.4    -      -       -      +
    6633  ALA      2.9    13.1    +      -       -      +
    6643  LEU*     2.7    17.4    +      -       -      +
    6663  ALA*     1.3    69.8    -      -       -      +
    6683  LYS*     1.3    69.3    +      -       -      +
    6693  VAL*     3.5     1.3    +      -       -      +
    6783  PHE*     5.5     6.3    -      -       -      -
----------------------------------------------------------
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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