Contacts of the helix formed by residues 527 - 540 (chain A) in PDB entry 6S1M


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 MET 527 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    523A  LEU      3.9     4.6    +      -       -      -
    524A  GLU      3.9     7.5    +      -       -      +
    525A  ARG      3.2     5.8    -      -       -      +
    526A  LEU*     1.3    78.6    -      -       -      +
    528A  VAL*     1.3    63.7    -      -       -      +
    529A  LEU      3.6     0.9    -      -       -      -
    530A  VAL*     4.4    24.7    -      -       +      +
    531A  ASN*     3.0    46.3    +      -       -      +
    682A  ARG*     4.9     9.2    -      -       -      +
    685A  VAL*     3.7    28.5    -      -       +      +
    686A  LEU*     3.8    24.5    -      -       +      -
    689A  ARG*     4.9     7.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 528 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    457A  MET*     3.8    28.5    -      -       +      -
    459A  MET*     4.0    24.7    -      -       +      -
    462A  VAL*     4.3    19.5    -      -       +      -
    523A  LEU*     3.5    26.4    +      -       +      +
    526A  LEU*     3.9    21.5    -      -       +      +
    527A  MET*     1.3    76.7    -      -       -      +
    529A  LEU*     1.3    60.5    -      -       -      +
    531A  ASN*     3.2     6.3    +      -       -      +
    532A  ALA*     2.9    25.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 529 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  ILE*     5.9     4.9    -      -       +      -
    310A  LEU*     4.6    21.1    -      -       +      -
    312A  VAL*     4.9    12.1    -      -       +      -
    344A  TRP*     4.6    28.9    -      -       +      +
    392A  VAL*     5.3     9.6    -      -       +      -
    457A  MET*     4.9    13.0    -      -       -      -
    523A  LEU*     4.0    29.7    +      -       +      +
    527A  MET      3.6     0.2    -      -       -      -
    528A  VAL*     1.3    77.8    -      -       -      +
    530A  VAL*     1.3    62.6    +      -       +      +
    532A  ALA*     3.3     7.9    +      -       +      +
    533A  VAL*     3.0    43.5    +      -       +      +
    543A  LEU*     5.6     7.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 530 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307A  ILE*     4.9    11.2    -      -       +      -
    344A  TRP*     3.8    32.8    -      -       +      -
    527A  MET*     4.7    24.9    -      -       +      +
    528A  VAL      3.4     0.2    -      -       -      -
    529A  LEU*     1.3    76.7    -      -       +      +
    531A  ASN*     1.3    63.5    +      -       -      +
    533A  VAL*     3.5     6.4    +      -       -      +
    534A  GLU*     3.0    30.5    +      -       +      +
    689A  ARG*     6.3     0.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 531 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    526A  LEU      4.7     3.2    +      -       -      -
    527A  MET*     3.0    38.5    +      -       -      +
    528A  VAL*     3.2     5.4    +      -       -      +
    530A  VAL*     1.3    79.2    -      -       -      +
    532A  ALA*     1.3    59.2    +      -       -      +
    534A  GLU*     3.8     6.2    -      -       -      +
    535A  MET*     2.9    31.4    +      -       -      +
    685A  VAL*     4.6     6.5    +      -       -      +
    688A  GLY      5.5     0.2    -      -       -      -
    689A  ARG*     3.3    45.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 532 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    457A  MET*     5.4    13.0    -      -       +      -
    528A  VAL*     2.9    14.0    +      -       +      +
    529A  LEU*     3.3    13.0    +      -       +      +
    531A  ASN*     1.3    78.3    -      -       -      +
    533A  VAL*     1.3    57.2    +      -       +      +
    535A  MET*     3.4     5.9    +      -       -      +
    536A  ALA*     3.0    28.9    +      -       -      +
    543A  LEU*     3.8    15.5    -      -       +      +
    546A  LEU*     3.7    13.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 533 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  GLY      5.0     0.2    -      -       -      +
    263A  CYS*     4.4    22.0    -      -       +      -
    307A  ILE*     4.8    20.4    -      -       +      -
    310A  LEU*     6.2     0.9    -      -       +      -
    529A  LEU*     3.0    37.8    +      -       +      +
    530A  VAL*     3.9     6.1    -      -       -      +
    532A  ALA*     1.3    74.2    -      -       +      +
    534A  GLU*     1.3    59.2    +      -       -      +
    536A  ALA*     3.3     3.4    +      -       -      +
    537A  ARG*     3.0    59.7    +      -       -      +
    543A  LEU*     4.5     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 534 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    530A  VAL*     3.0    18.4    +      -       +      +
    531A  ASN*     3.9     5.9    -      -       -      +
    533A  VAL*     1.3    77.4    -      -       -      +
    535A  MET*     1.3    57.9    +      -       -      +
    537A  ARG*     3.3     7.4    +      -       +      +
    538A  VAL*     3.0    40.1    +      -       +      +
    666A  ALA*     5.4     2.9    -      -       -      +
    669A  ARG*     5.6     5.5    +      -       -      +
    689A  ARG*     2.4    48.9    +      -       -      +
    693A  LEU*     3.8    25.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 535 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    531A  ASN      2.9    19.6    +      -       -      +
    532A  ALA*     3.7     5.2    -      -       -      +
    534A  GLU*     1.3    77.2    -      -       -      +
    536A  ALA*     1.3    52.2    +      -       -      +
    538A  VAL*     3.4     3.0    +      -       +      -
    539A  THR*     2.6    65.9    +      -       +      +
    546A  LEU*     3.8    23.6    -      -       +      -
    554A  LYS*     4.2    10.5    -      -       -      +
    663A  LEU*     5.3     2.2    -      -       +      -
    692A  ALA*     5.0    14.1    -      -       -      -
    693A  LEU*     4.2    25.4    -      -       +      -
    696A  SER*     3.4    26.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 536 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262A  GLY*     3.6    23.8    +      -       -      +
    263A  CYS*     4.8     0.4    -      -       -      -
    532A  ALA      3.0    17.4    +      -       -      +
    533A  VAL*     3.8     4.9    -      -       -      +
    535A  MET*     1.3    76.9    -      -       -      +
    537A  ARG*     1.3    59.2    +      -       -      +
    539A  THR*     4.0     3.8    -      -       -      -
    540A  GLY*     3.2    23.4    +      -       -      -
    541A  VAL*     3.5    19.2    -      -       -      +
    542A  PRO      4.5     4.5    -      -       -      +
    543A  LEU*     4.1    17.7    -      -       +      -
    546A  LEU*     4.1     5.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 537 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97A  GLN*     3.1    22.0    -      -       -      +
    261A  VAL*     4.4    13.1    -      -       +      +
    262A  GLY      3.6    15.7    -      -       -      +
    263A  CYS      3.3    14.7    +      -       -      +
    265A  TRP*     4.8     1.6    -      -       -      +
    300A  PRO*     3.7    42.0    -      -       +      +
    304A  TRP      4.0     2.9    +      -       -      -
    305A  GLN*     3.7    31.7    +      -       -      +
    306A  ARG      3.0    20.6    +      -       -      -
    307A  ILE*     4.6     2.9    -      -       -      +
    533A  VAL*     3.0    39.3    +      -       +      +
    534A  GLU*     3.9     6.7    -      -       +      +
    535A  MET      3.2     0.2    -      -       -      -
    536A  ALA*     1.3    79.0    -      -       -      +
    538A  VAL*     1.3    64.4    +      -       +      +
    540A  GLY      4.3     2.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 538 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    534A  GLU*     3.0    36.3    +      -       +      +
    535A  MET*     4.2     4.0    -      -       +      +
    537A  ARG*     1.3    80.2    -      -       +      +
    539A  THR*     1.3    66.9    +      -       +      +
    558A  GLN*     3.8     7.0    +      -       -      +
    662A  ASN*     4.5    21.0    +      -       -      +
    663A  LEU*     4.4    23.8    -      -       +      -
    666A  ALA*     4.7    20.2    -      -       +      -
    669A  ARG*     5.6     5.8    -      -       -      +
    693A  LEU*     4.8     8.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 539 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    535A  MET*     2.6    47.4    +      -       +      +
    536A  ALA*     4.0     0.2    -      -       -      -
    538A  VAL*     1.3    82.1    -      -       +      +
    540A  GLY*     1.3    60.1    +      -       -      +
    541A  VAL*     3.5    20.9    -      -       -      +
    554A  LYS*     3.8    29.0    -      -       +      -
    557A  SER*     3.8     9.9    +      -       -      -
    558A  GLN*     3.4    38.6    -      -       -      +
    561A  ARG*     4.3     5.1    +      -       -      -
    663A  LEU*     5.7     1.6    -      -       +      -
    696A  SER*     5.6     1.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 540 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252A  ILE*     5.6     2.4    -      -       -      +
    255A  MET*     4.4     7.3    -      -       -      +
    261A  VAL*     4.1    14.4    -      -       -      -
    262A  GLY      4.5     2.7    -      -       -      -
    536A  ALA      3.2    15.3    +      -       -      -
    537A  ARG      4.3     1.2    +      -       -      -
    538A  VAL      3.7     1.6    -      -       -      -
    539A  THR*     1.3    77.8    -      -       -      +
    541A  VAL*     1.3    62.7    +      -       -      +
    542A  PRO*     4.5     0.3    -      -       -      +
    557A  SER*     3.7     5.7    +      -       -      -
    561A  ARG*     3.0    33.8    +      -       -      -
----------------------------------------------------------
 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