Contacts of the helix formed by residues 523 - 535 (chain I) in PDB entry 6KC4


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 ASN 523 (chain I).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    468G  ILE*     4.4    17.9    -      -       +      +
    469G  GLU*     6.5     0.4    -      -       +      -
    514I  TYR*     3.8    11.7    -      -       -      -
    521I  PHE*     3.2     9.1    -      -       -      +
    522I  SER*     1.3    97.3    +      -       -      +
    524I  ILE*     1.3    63.2    +      -       -      +
    525I  PRO*     3.3    16.0    -      -       +      +
    526I  GLN*     2.9    43.8    +      -       -      +
    527I  LEU*     3.4    14.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 524 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    455I  LEU*     4.1    20.9    -      -       +      -
    460I  TRP*     4.3     4.7    -      -       +      -
    482I  VAL*     4.5     3.1    -      -       +      -
    492I  TYR*     3.4    52.7    -      -       +      -
    507I  ILE*     4.0    21.3    -      -       +      -
    514I  TYR*     3.5    32.0    -      -       +      -
    523I  ASN*     1.3    70.4    -      -       -      +
    525I  PRO*     1.3    75.0    -      -       +      +
    527I  LEU*     3.0     8.0    +      -       +      +
    528I  ILE*     2.9    38.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 525 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    469G  GLU*     5.7     1.1    -      -       -      +
    453I  LYS      3.8    13.9    -      -       -      +
    455I  LEU*     4.1    22.7    -      -       +      +
    458I  GLN*     3.7    33.0    -      -       +      +
    460I  TRP*     3.9    12.3    -      -       +      -
    523I  ASN*     3.3    17.3    -      -       +      +
    524I  ILE*     1.3    91.4    -      -       +      +
    526I  GLN*     1.3    59.7    +      -       -      +
    528I  ILE*     3.5     1.4    +      -       -      +
    529I  ASP*     2.9    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 526 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475A  LYS*     3.1    41.2    +      -       -      +
    497A  TYR*     3.3    24.3    +      -       -      +
    502A  ARG*     4.4    12.2    -      -       -      +
    521I  PHE*     3.7    18.7    -      -       +      -
    522I  SER*     5.5     2.0    -      -       -      +
    523I  ASN*     2.9    33.7    +      -       -      +
    524I  ILE      3.2     0.2    -      -       -      -
    525I  PRO*     1.3    77.4    -      -       +      +
    527I  LEU*     1.3    66.5    +      -       -      +
    529I  ASP*     3.9    11.3    -      -       -      +
    530I  HIS*     3.0    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 527 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    507I  ILE*     3.7    33.7    -      -       +      -
    514I  TYR*     4.3     2.9    -      -       +      -
    515I  ARG*     4.1    18.6    -      -       -      +
    516I  PHE*     3.7    31.2    -      -       +      +
    519I  THR      4.9     0.7    -      -       -      +
    521I  PHE*     3.5    40.7    -      -       +      -
    523I  ASN      3.4     8.1    +      -       -      +
    524I  ILE*     3.0    10.0    +      -       -      +
    526I  GLN*     1.3    77.9    -      -       -      +
    528I  ILE*     1.3    64.4    +      -       +      +
    530I  HIS*     3.3     9.0    +      -       -      +
    531I  HIS*     3.3    38.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 528 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    460I  TRP*     3.9    29.4    -      -       +      +
    480I  PHE*     3.8    29.4    -      -       +      -
    482I  VAL*     4.0    16.6    -      -       +      -
    494I  LEU*     4.1    23.3    -      -       +      -
    507I  ILE*     4.8     3.1    -      -       +      -
    516I  PHE*     4.7    12.6    -      -       +      -
    524I  ILE*     2.9    34.1    +      -       +      +
    525I  PRO      3.9     3.1    -      -       -      +
    527I  LEU*     1.3    76.2    -      -       +      +
    529I  ASP*     1.3    59.7    +      -       -      +
    531I  HIS*     3.1     5.6    +      -       -      +
    532I  TYR*     2.8    26.9    +      -       +      +
    546I  LEU*     4.1     8.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 529 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    475A  LYS      4.4     5.1    -      -       -      +
    476A  LYS*     2.9    45.2    +      -       -      +
    525I  PRO      2.9    19.3    +      -       -      +
    526I  GLN*     4.0    13.2    -      -       -      +
    528I  ILE*     1.3    74.4    -      -       -      +
    530I  HIS*     1.3    60.9    +      -       -      +
    532I  TYR*     4.2    16.2    -      -       -      +
    533I  THR*     2.8    43.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with HIS 530 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477A  GLN*     4.9     0.4    +      -       -      -
    497A  TYR*     5.2     6.2    -      -       +      +
    499A  ASP*     3.8    28.7    -      -       +      -
    500A  GLY*     3.6    13.8    +      -       -      -
    519I  THR*     5.8     0.8    +      -       -      -
    521I  PHE*     3.7    25.4    -      +       +      -
    526I  GLN      3.0    14.2    +      -       -      +
    527I  LEU      3.5     8.3    -      -       -      +
    528I  ILE      3.2     0.4    -      -       -      -
    529I  ASP*     1.3    77.2    -      -       -      +
    531I  HIS*     1.3    81.2    +      +       -      +
    533I  THR*     4.9     1.6    -      -       -      -
    534I  THR*     2.8    61.4    +      -       +      +
    536I  GLN*     4.2    15.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with HIS 531 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    516I  PHE*     3.8    16.5    -      +       +      +
    527I  LEU*     3.3    34.7    +      -       +      +
    528I  ILE*     3.1     7.2    +      -       -      +
    530I  HIS*     1.3    94.2    -      +       -      +
    532I  TYR*     1.3    58.2    +      -       -      +
    534I  THR*     4.1     3.4    -      -       -      -
    535I  LYS*     2.9    31.0    +      -       -      +
    536I  GLN*     2.9    27.7    +      -       +      +
    537I  VAL      3.2    22.2    +      -       -      -
    538I  ILE*     3.7    23.5    -      -       +      +
    546I  LEU*     3.9    23.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 532 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    480I  PHE*     3.9    24.5    -      +       +      -
    528I  ILE*     2.8    17.7    +      -       +      +
    529I  ASP*     4.0    18.4    -      -       -      +
    531I  HIS*     1.3    77.2    -      -       -      +
    533I  THR*     1.3    64.1    +      -       -      +
    535I  LYS*     2.9    43.1    +      -       -      +
    546I  LEU*     3.9    10.7    -      -       +      +
    547I  LEU      3.3    29.3    +      -       -      -
    549I  PRO*     3.9    21.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 533 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    476A  LYS*     4.4    11.9    +      -       +      +
    477A  GLN*     3.9    32.8    -      -       +      +
    529I  ASP*     2.8    37.9    +      -       -      -
    530I  HIS*     4.1     2.7    -      -       -      -
    532I  TYR*     1.3    84.5    -      -       -      +
    534I  THR*     1.3    61.5    +      -       -      +
    535I  LYS*     3.5     5.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 534 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477A  GLN*     3.7    40.6    -      -       +      +
    499A  ASP*     4.9     2.2    -      -       -      +
    530I  HIS*     2.8    37.5    +      -       +      +
    533I  THR*     1.3    78.9    -      -       -      +
    535I  LYS*     1.3    67.5    +      -       -      +
    536I  GLN*     3.1    39.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 535 (chain I). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531I  HIS      2.9    12.8    +      -       -      +
    532I  TYR*     2.9    40.3    +      -       -      +
    533I  THR      4.5     4.0    -      -       -      +
    534I  THR*     1.3    79.2    -      -       -      +
    536I  GLN*     1.3    67.5    +      -       -      +
    537I  VAL*     3.5     2.9    +      -       -      +
    545I  VAL*     3.9    30.9    -      -       +      +
    546I  LEU      2.8    29.2    +      -       -      +
    547I  LEU*     4.0    16.1    +      -       +      +
----------------------------------------------------------
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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