Contacts of the helix formed by residues 500 - 515 (chain M) in PDB entry 6M6A


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 THR 500 (chain M).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    498M  VAL*     3.3     8.9    -      -       -      +
    499M  PRO*     1.3    79.9    -      -       +      +
    501M  THR*     1.3    71.6    +      -       -      +
    502M  LEU*     3.4    23.1    -      -       +      +
    503M  LEU*     3.6    35.7    -      -       +      +
    504M  ALA      3.1    17.7    +      -       -      -
    552M  THR*     3.2     7.0    -      -       -      -
    713M  ILE*     5.8     5.6    -      -       +      +
     31T    A      3.6     9.6    +      -       -      -
     32T    C      2.8    15.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 501 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    500M  THR*     1.3    77.7    +      -       -      +
    502M  LEU*     1.3    59.5    +      -       -      +
    504M  ALA*     3.4     5.9    +      -       -      +
    505M  GLU*     2.9    27.9    +      -       -      +
    524M  VAL*     5.8     0.7    -      -       -      +
    526M  SER*     3.7    30.5    -      -       -      -
    527M  ARG*     2.6    38.2    +      -       -      +
    528M  PHE*     3.3    26.5    -      -       +      -
    552M  THR*     3.4    10.3    -      -       +      +
     32T    C      2.9     7.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 502 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    500M  THR*     3.2    22.4    -      -       +      +
    501M  THR*     1.3    82.0    -      -       -      +
    503M  LEU*     1.3    59.2    +      -       +      +
    505M  GLU*     3.3    13.4    +      -       -      +
    506M  GLN*     2.9    28.0    +      -       -      +
    528M  PHE*     5.7     4.5    -      -       +      -
    713M  ILE*     6.1     4.9    -      -       +      -
    717M  LEU*     6.6     0.2    -      -       +      -
     32T    C      5.2     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 503 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    498M  VAL*     3.6    14.4    -      -       +      -
    499M  PRO*     3.8    27.1    -      -       +      -
    500M  THR*     3.4    16.3    +      -       +      +
    502M  LEU*     1.3    76.2    -      -       +      +
    504M  ALA*     1.3    60.5    +      -       -      +
    506M  GLN*     3.7    20.0    -      -       -      +
    507M  HIS*     2.9    55.8    +      -       +      +
    575M  ARG*     4.0    14.1    -      -       -      +
    744M  ARG*     6.3     1.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 504 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    496M  PHE*     4.2     3.6    -      -       -      -
    498M  VAL*     3.4    23.2    -      -       +      +
    500M  THR      3.1    13.5    +      -       -      +
    501M  THR*     3.5    12.1    -      -       +      +
    503M  LEU*     1.3    77.6    -      -       -      +
    505M  GLU*     1.3    57.6    +      -       -      +
    507M  HIS*     3.4     0.3    +      -       -      -
    508M  GLY*     2.9    25.5    +      -       -      -
    524M  VAL*     4.7     6.1    -      -       +      +
    526M  SER*     6.1     0.2    -      -       -      -
    550M  ILE*     3.3    31.5    -      -       +      +
    551M  GLY*     4.1     8.3    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 505 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    501M  THR      2.9    13.9    +      -       -      +
    502M  LEU*     3.3    16.7    +      -       -      +
    504M  ALA*     1.3    77.1    -      -       -      +
    506M  GLN*     1.3    70.1    +      -       -      +
    508M  GLY      3.5     0.5    +      -       -      -
    509M  LYS*     2.9    61.8    +      -       -      +
    512M  ARG*     3.8     9.4    +      -       -      +
    524M  VAL*     5.1    10.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 506 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    502M  LEU      2.9    15.0    +      -       -      +
    503M  LEU*     3.7    25.8    -      -       -      +
    505M  GLU*     1.3    85.3    +      -       -      +
    507M  HIS*     1.3    66.8    +      -       -      +
    509M  LYS*     3.2    11.1    -      -       +      +
    510M  THR*     3.0    37.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 507 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477M  THR*     3.9    20.8    -      -       +      +
    496M  PHE*     3.4    36.8    -      +       +      -
    503M  LEU*     2.9    47.9    +      -       +      +
    506M  GLN*     1.3    86.8    -      -       -      +
    508M  GLY*     1.3    59.8    +      -       -      +
    510M  THR*     2.5    23.0    +      -       -      +
    511M  PHE*     2.8    29.1    +      -       +      -
    571M  ASP*     4.6     7.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 508 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    504M  ALA      2.9    16.2    +      -       -      -
    505M  GLU      3.8     0.9    -      -       -      -
    507M  HIS*     1.3    73.0    -      -       -      +
    509M  LYS*     1.3    58.7    +      -       -      +
    511M  PHE*     3.6    15.4    -      -       -      +
    512M  ARG*     2.9    41.4    +      -       -      +
    522M  VAL*     4.0     1.2    -      -       -      +
    524M  VAL*     4.9     4.5    -      -       -      -
    550M  ILE*     3.8    17.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 509 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    505M  GLU*     2.9    40.5    +      -       -      +
    506M  GLN*     3.2    11.0    -      -       +      +
    508M  GLY*     1.3    77.2    -      -       -      +
    510M  THR*     1.3    59.2    +      -       +      +
    512M  ARG*     3.2    26.9    +      -       -      +
    513M  GLU*     2.9    49.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 510 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477M  THR*     3.9    23.3    +      -       +      +
    481M  LEU*     4.7     3.0    -      -       -      +
    506M  GLN*     3.0    20.0    +      -       +      +
    507M  HIS*     2.5    29.4    +      -       -      +
    509M  LYS*     1.3    74.3    -      -       +      +
    511M  PHE*     1.3    58.5    +      -       -      +
    513M  GLU*     3.3    20.8    -      -       -      +
    514M  ARG*     2.9    28.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 511 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    477M  THR*     3.6    28.9    -      -       +      -
    480M  ALA*     5.3     5.2    -      -       +      -
    481M  LEU*     3.5    25.8    -      -       +      -
    496M  PHE*     4.1    35.9    -      +       +      -
    507M  HIS*     2.8    38.4    +      -       +      +
    508M  GLY*     3.6    14.1    -      -       -      +
    510M  THR*     1.3    76.6    -      -       -      +
    512M  ARG*     1.3    55.5    +      -       -      +
    514M  ARG      3.2     0.9    +      -       -      -
    515M  PHE*     2.7    44.6    +      -       +      -
    522M  VAL*     3.7    17.5    -      -       +      -
    548M  ILE*     4.4    16.2    -      -       +      -
    550M  ILE*     4.2    11.4    -      -       +      -
    569M  ILE*     4.9     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 512 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    505M  GLU*     3.8    12.9    +      -       -      +
    508M  GLY      2.9    20.9    +      -       -      +
    509M  LYS*     3.2    45.0    +      -       -      +
    511M  PHE*     1.3    76.2    -      -       -      +
    513M  GLU*     1.3    57.2    +      -       +      +
    515M  PHE*     3.1     6.1    -      -       -      +
    516M  GLN*     2.9    42.2    +      -       -      +
    522M  VAL*     3.7    20.1    -      -       +      +
    524M  VAL*     5.5     9.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 513 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    509M  LYS*     2.9    49.1    +      -       -      +
    510M  THR*     3.3    23.5    +      -       -      +
    511M  PHE      3.3     0.2    -      -       -      -
    512M  ARG*     1.3    75.5    -      -       +      +
    514M  ARG*     1.3    61.5    +      -       -      +
    516M  GLN*     3.3    25.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 514 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435M  VAL*     2.4    47.1    +      -       +      +
    438M  GLY*     3.2    11.3    -      -       -      -
    439M  PHE*     3.1    33.4    -      -       -      +
    478M  GLU*     2.5    46.9    +      -       -      -
    481M  LEU*     3.6    26.1    -      -       +      +
    482M  ARG*     3.2    15.0    -      -       -      +
    510M  THR      2.9    17.6    +      -       -      +
    511M  PHE      3.2     5.1    +      -       -      +
    513M  GLU*     1.3    76.5    -      -       -      +
    515M  PHE*     1.3    68.3    +      -       +      +
    516M  GLN      3.6     1.1    +      -       -      -
    517M  GLY      5.4     0.2    +      -       -      -
    518M  LEU*     3.3    14.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 515 (chain M). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435M  VAL*     3.6    24.9    -      -       +      -
    481M  LEU*     3.6    42.4    -      -       +      -
    484M  ALA*     5.3     0.7    -      -       +      -
    485M  HIS*     4.6     5.4    -      +       +      -
    511M  PHE*     2.7    23.2    +      -       +      +
    512M  ARG*     3.1     8.0    +      -       -      +
    514M  ARG*     1.3    86.6    -      -       +      +
    516M  GLN*     1.3    64.0    +      -       -      +
    517M  GLY      3.6     0.4    -      -       -      -
    518M  LEU*     3.1    38.6    -      -       +      +
    520M  VAL*     3.6    50.7    -      -       +      +
    522M  VAL*     4.1     5.4    -      -       +      -
    548M  ILE*     4.2    11.2    -      -       +      -
----------------------------------------------------------
 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