Contacts of the helix formed by residues 534 - 551 (chain A) in PDB entry 2W3C


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 GLU 534 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    488A  ILE*     3.5    12.4    -      -       -      +
    491A  ARG*     3.4    30.4    +      -       -      +
    525A  GLN*     4.6    10.3    -      -       -      +
    530A  LEU*     3.5    31.6    +      -       +      +
    532A  GLU      3.3     0.2    -      -       -      -
    533A  GLU*     1.3    78.1    -      -       +      +
    535A  GLN*     1.3    63.1    +      -       -      +
    536A  LEU      3.2     1.8    -      -       -      -
    537A  VAL*     3.3    33.0    +      -       +      +
    538A  GLN*     3.1    26.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 535 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    529A  ASN*     6.1     0.4    -      -       -      +
    530A  LEU      4.2     1.4    +      -       -      -
    531A  GLY      3.5    25.3    +      -       -      +
    532A  GLU*     3.4    21.4    -      -       -      +
    533A  GLU      3.2     0.4    -      -       -      -
    534A  GLU*     1.3    79.2    -      -       -      +
    536A  LEU*     1.3    62.5    +      -       -      +
    538A  GLN*     3.5    12.5    +      -       -      +
    539A  GLY      3.0    18.0    +      -       -      -
    583A  PHE*     3.3    62.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 536 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    488A  ILE*     4.7     6.5    -      -       +      -
    492A  VAL*     3.7    21.1    -      -       +      -
    532A  GLU      4.6     1.0    +      -       -      +
    533A  GLU      3.8    10.1    +      -       -      +
    534A  GLU      3.2     0.8    -      -       -      -
    535A  GLN*     1.3    77.8    -      -       -      +
    537A  VAL*     1.3    64.0    +      -       -      +
    539A  GLY*     3.1     3.8    +      -       -      -
    540A  LEU*     3.1    30.6    +      -       +      +
    583A  PHE*     4.8     5.4    -      -       -      +
    584A  ILE*     4.3    16.4    -      -       -      -
    587A  HIS*     4.0    27.6    -      -       +      +
    608A  ILE*     3.6    35.2    -      -       +      -
    609A  PHE*     3.8    26.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 537 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482A  LEU*     5.9     0.9    -      -       +      -
    488A  ILE*     4.0    27.4    -      -       +      +
    491A  ARG*     3.9    29.4    -      -       +      +
    492A  VAL*     4.1    15.0    -      -       +      +
    495A  LEU*     3.8    20.4    -      -       +      -
    521A  PHE*     6.4     1.1    -      -       +      -
    525A  GLN*     4.3     9.2    -      -       -      +
    533A  GLU      5.6     0.2    -      -       -      +
    534A  GLU*     3.3    28.2    +      -       -      +
    536A  LEU*     1.3    75.0    -      -       -      +
    538A  GLN*     1.3    61.8    +      -       -      +
    540A  LEU*     3.2     5.0    +      -       -      +
    541A  CYS*     3.1    27.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 538 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525A  GLN*     2.7    33.5    +      -       -      +
    526A  ILE*     3.4    22.1    +      -       -      +
    528A  GLU      2.6    30.8    +      -       -      +
    530A  LEU*     4.2    15.6    +      -       +      +
    534A  GLU*     3.1    22.2    +      -       +      +
    535A  GLN*     3.6    22.7    +      -       -      +
    537A  VAL*     1.3    75.0    -      -       -      +
    539A  GLY*     1.3    62.4    -      -       -      +
    541A  CYS*     3.4     9.5    +      -       -      +
    542A  ALA*     3.1    20.3    +      -       -      +
    580A  LYS*     3.6    29.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 539 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535A  GLN      3.0    13.5    +      -       -      -
    536A  LEU      3.5     3.8    -      -       -      -
    538A  GLN*     1.3    75.6    -      -       -      +
    540A  LEU*     1.3    57.9    +      -       -      +
    542A  ALA*     3.4     4.7    +      -       -      +
    543A  LEU      3.0    21.8    +      -       -      -
    580A  LYS      2.9    29.1    +      -       -      -
    581A  LEU*     4.1     1.9    -      -       -      -
    583A  PHE*     4.7     0.7    -      -       -      -
    584A  ILE*     3.4    19.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 540 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    492A  VAL*     3.7    44.2    -      -       +      +
    495A  LEU*     3.7    27.5    -      -       +      +
    496A  MET*     4.7     2.5    -      -       +      -
    499A  CYS*     3.9     6.6    -      -       -      -
    536A  LEU*     3.1    26.9    +      -       +      +
    537A  VAL*     3.2     6.2    +      -       -      +
    539A  GLY*     1.3    73.4    -      -       -      +
    541A  CYS*     1.3    60.5    +      -       -      +
    543A  LEU*     3.3     5.7    +      -       +      +
    544A  LEU*     2.9    27.7    +      -       -      +
    584A  ILE*     4.0    13.5    -      -       +      -
    609A  PHE*     5.7     1.6    -      -       +      -
    613A  PHE*     3.2    42.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 541 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482A  LEU*     5.5     0.4    -      -       -      -
    495A  LEU*     4.2    16.4    -      -       -      +
    521A  PHE*     4.6     8.7    -      -       -      -
    522A  LEU*     3.9    26.7    -      -       +      +
    525A  GLN*     4.2    19.5    -      -       +      -
    526A  ILE*     3.6    18.4    -      -       +      +
    537A  VAL*     3.1    22.9    +      -       -      -
    538A  GLN*     3.4     9.9    -      -       -      +
    540A  LEU*     1.3    74.2    -      -       -      +
    542A  ALA*     1.3    54.3    +      -       -      +
    544A  LEU*     3.2     4.6    +      -       -      +
    545A  LEU*     2.7    36.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 542 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    526A  ILE*     3.5    17.3    -      -       +      +
    538A  GLN      3.1     9.7    +      -       -      +
    539A  GLY      3.4     9.4    +      -       -      +
    541A  CYS*     1.3    75.1    -      -       -      +
    543A  LEU*     1.3    55.1    +      -       -      +
    546A  GLY*     2.7    32.7    +      -       -      -
    577A  PHE*     3.4    30.2    -      -       +      +
    580A  LYS      4.5     0.2    -      -       -      -
    581A  LEU*     4.0    27.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 543 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  CYS*     3.9     9.2    -      -       -      -
    539A  GLY      3.0    14.3    +      -       -      +
    540A  LEU*     3.4     8.5    -      -       +      +
    542A  ALA*     1.3    73.7    -      -       -      +
    544A  LEU*     1.3    56.9    +      -       -      +
    546A  GLY*     3.4     1.5    +      -       -      -
    547A  ILE*     2.8    43.2    +      -       +      +
    581A  LEU*     3.7    18.2    -      -       +      +
    584A  ILE*     3.7    15.9    -      -       +      -
    613A  PHE*     3.6    35.2    -      -       +      -
    616A  LEU*     4.5     3.8    -      -       +      -
    617A  VAL*     3.9    17.5    -      -       +      -
    620A  LEU*     4.6    11.9    -      -       +      -
    621A  GLU*     5.1     4.3    -      -       +      +
    624A  ILE*     3.8    21.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 544 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    482A  LEU*     5.2     0.7    -      -       +      -
    495A  LEU*     3.9    17.0    -      -       +      -
    498A  LEU*     3.6    45.8    -      -       +      +
    499A  CYS*     3.9    12.5    -      -       -      +
    502A  LEU*     3.9    25.8    -      -       +      -
    512A  PHE*     3.9    21.8    -      -       +      -
    522A  LEU*     4.2    15.3    -      -       +      -
    540A  LEU      2.9    13.9    +      -       -      +
    541A  CYS*     3.2    10.0    +      -       -      +
    543A  LEU*     1.3    73.2    -      -       -      +
    545A  LEU*     1.3    66.4    +      -       -      +
    547A  ILE*     3.1     6.9    +      -       +      +
    548A  SER*     2.9    24.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 545 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    519A  VAL*     4.5    22.7    -      -       +      -
    522A  LEU*     3.9    18.7    -      -       +      +
    523A  THR*     4.3    19.3    -      -       -      +
    526A  ILE*     3.8    21.3    -      -       +      -
    541A  CYS      2.7    19.8    +      -       -      +
    542A  ALA      3.8     3.1    -      -       -      +
    544A  LEU*     1.3    72.4    -      -       -      +
    546A  GLY*     1.3    58.5    +      -       -      +
    548A  SER*     3.0    34.1    -      -       -      -
    549A  ILE*     3.2    10.7    +      -       +      +
    564A  LEU*     4.6    14.6    -      -       +      +
    567A  LEU*     6.5     0.7    -      -       +      -
    568A  ILE*     3.9    31.0    -      -       +      -
    572A  ILE*     4.5     2.9    -      -       +      -
    577A  PHE*     4.2     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 546 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    542A  ALA      2.7    21.9    +      -       -      -
    543A  LEU      3.6     1.8    -      -       -      -
    545A  LEU*     1.3    73.8    -      -       -      +
    547A  ILE*     1.3    55.2    +      -       -      +
    549A  ILE*     3.2    11.4    +      -       -      +
    550A  TYR*     2.9    29.3    +      -       -      +
    577A  PHE*     4.1     8.0    -      -       -      -
    624A  ILE*     3.9    26.8    -      -       -      +
    628A  ILE*     5.3     1.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 547 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    499A  CYS*     3.6    40.2    -      -       +      +
    502A  LEU*     3.9    16.6    -      -       +      +
    503A  SER*     3.8    18.2    -      -       -      +
    509A  VAL*     4.3     1.5    -      -       +      +
    543A  LEU*     2.8    31.2    +      -       +      +
    544A  LEU*     3.1     6.5    +      -       +      +
    546A  GLY*     1.3    70.4    -      -       -      +
    548A  SER*     1.3    60.7    +      -       -      +
    550A  TYR*     4.4     0.4    -      -       -      +
    551A  PHE*     2.9    50.4    +      -       +      +
    616A  LEU*     4.7     1.3    -      -       +      -
    620A  LEU*     4.0    29.6    -      -       +      -
    624A  ILE*     4.1     8.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 548 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    502A  LEU*     4.2     5.2    -      -       -      +
    509A  VAL*     3.4    17.1    -      -       -      +
    512A  PHE*     4.2    12.8    -      -       -      -
    513A  LEU*     3.8    28.2    -      -       -      +
    544A  LEU      2.9    14.6    +      -       -      -
    545A  LEU*     3.0    24.5    +      -       -      +
    547A  ILE*     1.3    75.7    -      -       -      +
    549A  ILE*     1.3    55.5    +      -       -      +
    552A  ASN*     3.0    31.3    +      -       -      +
    564A  LEU*     4.5     3.4    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 549 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    545A  LEU*     3.2    15.1    +      -       +      +
    546A  GLY*     3.6     7.9    -      -       -      +
    547A  ILE      3.1     0.6    -      -       -      -
    548A  SER*     1.3    77.2    -      -       -      +
    550A  TYR*     1.3    65.1    -      -       -      +
    552A  ASN*     3.2    19.5    +      -       -      +
    561A  LYS*     3.3    34.2    +      -       +      +
    564A  LEU*     3.6    35.2    -      -       +      -
    565A  LYS*     4.2    17.3    -      -       +      +
    568A  ILE*     3.4    33.2    -      -       +      -
    627A  ALA*     5.1     5.8    -      -       +      +
    628A  ILE*     3.8    17.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 550 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    546A  GLY      2.9    16.4    +      -       -      +
    547A  ILE*     3.4     2.2    +      -       -      +
    549A  ILE*     1.3    78.6    -      -       -      +
    551A  PHE*     1.3    97.7    +      +       +      +
    552A  ASN      3.5     0.3    +      -       -      +
    561A  LYS*     3.2    19.7    +      -       -      +
    620A  LEU*     4.8     2.2    -      -       +      -
    623A  VAL*     3.6    48.1    -      -       +      +
    624A  ILE*     4.2    12.6    -      -       +      -
    627A  ALA*     3.8    25.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 551 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    502A  LEU      4.3     3.4    -      -       -      +
    503A  SER*     4.1     6.5    -      -       -      -
    504A  ASN*     3.4    59.5    -      -       -      +
    505A  CYS      4.6     3.8    -      -       -      +
    506A  PRO*     3.4    32.5    -      -       +      +
    509A  VAL*     4.1    15.1    -      -       +      +
    547A  ILE*     2.9    35.1    +      -       +      +
    550A  TYR*     1.3   108.3    -      +       +      +
    552A  ASN*     1.3    61.3    +      -       -      +
    620A  LEU*     3.8    26.0    -      -       +      -
    624A  ILE*     5.9     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page


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