Contacts of the helix formed by residues 59 - 74 (chain P) in PDB entry 6P18


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 59 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26P  TRP*     3.1    19.0    +      -       -      -
     58P  CYS*     1.3    79.7    -      -       -      +
     60P  ASP*     1.3    61.2    +      -       -      +
     61P  ASP*     2.8    26.9    -      -       -      +
     62P  ASP*     2.9    40.9    +      -       -      +
     63P  GLY      3.8     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 60 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26P  TRP*     3.8    23.7    -      -       -      +
     31P  ARG*     5.4     7.3    -      -       -      +
     59P  ASN*     1.3    80.2    +      -       -      +
     61P  ASP*     1.3    64.5    +      -       +      +
     63P  GLY*     3.3     3.8    +      -       -      -
     64P  MET*     2.9    29.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 61 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59P  ASN*     2.8    19.1    -      -       -      +
     60P  ASP*     1.3    74.4    +      -       +      +
     62P  ASP*     1.3    60.2    +      -       -      +
     63P  GLY      3.3     0.2    -      -       -      -
     64P  MET*     3.3    11.7    +      -       +      +
     65P  LEU*     2.9    26.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 62 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19P  TRP*     4.3    22.2    -      -       +      -
     58P  CYS*     3.7    11.7    -      -       -      +
     59P  ASN*     2.9    50.8    +      -       -      +
     61P  ASP*     1.3    77.3    +      -       -      +
     63P  GLY*     1.3    71.8    +      -       -      -
     65P  LEU*     3.2    13.4    +      -       +      +
     66P  ILE*     3.0    33.6    +      -       -      +
    149P  PHE*     6.2     2.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 63 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23P  TRP*     3.6    18.0    +      -       -      -
     26P  TRP*     4.4    12.1    -      -       -      -
     58P  CYS*     4.0    17.7    -      -       -      -
     59P  ASN      4.2     0.4    -      -       -      -
     60P  ASP      3.3     5.2    +      -       -      -
     62P  ASP*     1.3    84.5    +      -       -      +
     64P  MET*     1.3    59.0    +      -       -      +
     66P  ILE*     4.4     1.8    -      -       -      -
     67P  SER*     2.9    29.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 64 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26P  TRP*     4.5    10.9    -      -       +      -
     32P  LEU*     4.1    24.5    -      -       +      -
     33P  GLU*     5.1     9.0    -      -       +      +
     36P  MET*     4.6    17.9    -      -       +      -
     60P  ASP*     2.9    19.0    +      -       -      +
     61P  ASP*     3.4    15.0    -      -       +      +
     62P  ASP      3.2     0.2    -      -       -      -
     63P  GLY*     1.3    78.3    -      -       -      +
     65P  LEU*     1.3    56.4    +      -       -      +
     67P  SER*     2.8    19.2    +      -       -      -
     68P  GLN*     3.0    24.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 65 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61P  ASP      2.9    14.5    +      -       -      +
     62P  ASP*     3.2    13.2    +      -       +      +
     64P  MET*     1.3    75.3    -      -       -      +
     66P  ILE*     1.3    64.4    +      -       +      +
     68P  GLN*     3.2    31.4    +      -       +      +
     69P  VAL*     3.1    22.9    +      -       +      +
    148P  ALA*     4.0    26.2    -      -       +      +
    149P  PHE*     3.7    35.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 66 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19P  TRP*     4.9    22.0    -      -       +      +
     20P  LEU*     5.2    11.7    -      -       +      -
     23P  TRP*     3.5    41.3    -      -       +      -
     62P  ASP      3.0    21.2    +      -       -      +
     63P  GLY*     4.4     0.9    -      -       -      -
     64P  MET      3.4     0.2    -      -       -      -
     65P  LEU*     1.3    78.2    -      -       +      +
     67P  SER*     1.3    61.5    +      -       -      +
     69P  VAL*     3.2    10.1    -      -       +      +
     70P  VAL*     3.1    25.2    +      -       +      +
    145P  LEU*     4.2    18.6    -      -       +      -
    149P  PHE*     3.7    35.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 67 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23P  TRP*     3.4    23.9    -      -       -      +
     26P  TRP*     4.7     1.9    -      -       -      -
     32P  LEU*     4.1    25.0    -      -       -      +
     36P  MET*     4.0     6.0    -      -       -      +
     40P  ILE*     5.7     1.5    -      -       -      +
     63P  GLY      2.9    11.8    +      -       -      -
     64P  MET*     2.8    28.4    +      -       -      -
     66P  ILE*     1.3    77.1    -      -       -      +
     68P  GLN*     1.3    58.2    +      -       -      +
     70P  VAL*     3.3     8.5    -      -       -      +
     71P  ASP*     2.9    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 68 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36P  MET*     4.6    13.6    -      -       -      +
     64P  MET*     3.0    23.3    +      -       +      +
     65P  LEU*     3.2    37.6    +      -       +      +
     67P  SER*     1.3    77.6    +      -       -      +
     69P  VAL*     1.3    82.4    +      -       -      +
     71P  ASP*     2.9    17.1    -      -       -      +
     72P  SER*     3.2    18.2    +      -       -      -
    148P  ALA*     4.5     4.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 69 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65P  LEU*     3.1    13.0    +      -       +      +
     66P  ILE*     3.2    30.5    -      -       +      +
     68P  GLN*     1.3    89.3    -      -       -      +
     70P  VAL*     1.3    62.9    +      -       +      +
     72P  SER*     2.8    20.1    +      -       -      +
     73P  VAL*     3.2    14.9    +      -       +      +
    141P  ILE*     5.2     5.8    -      -       +      +
    144P  VAL*     3.7    40.2    -      -       +      +
    145P  LEU*     4.4    12.6    -      -       +      +
    148P  ALA*     4.1    14.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 70 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20P  LEU*     5.6     3.6    -      -       +      -
     23P  TRP*     3.6    32.3    -      -       +      -
     40P  ILE*     5.8     1.1    -      -       +      -
     66P  ILE*     3.1    21.7    +      -       +      +
     67P  SER      3.3    10.5    -      -       -      +
     69P  VAL*     1.3    79.5    -      -       +      +
     71P  ASP*     1.3    56.9    +      -       +      +
     73P  VAL*     4.1     4.5    -      -       -      -
     74P  MET*     3.0    33.6    +      -       +      +
     81P  PHE*     3.6    25.5    -      -       +      -
     84P  LEU*     4.3    10.5    -      -       +      -
    141P  ILE*     3.7    24.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 71 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36P  MET*     3.3    19.8    -      -       -      +
     37P  SER*     3.3    31.5    -      -       -      +
     39P  VAL*     5.4     3.4    -      -       +      -
     40P  ILE*     4.6     9.9    -      -       +      -
     67P  SER      2.9    18.1    +      -       -      +
     68P  GLN*     2.9    31.0    -      -       -      +
     70P  VAL*     1.3    76.5    -      -       +      +
     72P  SER*     1.3    59.8    +      -       -      +
     74P  MET      4.3     7.6    -      -       -      +
     75P  TYR*     3.4    22.0    -      -       +      +
     81P  PHE*     5.1     4.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 72 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68P  GLN*     3.2    18.1    +      -       -      -
     69P  VAL*     2.8    28.1    +      -       -      +
     71P  ASP*     1.3    79.5    -      -       -      +
     73P  VAL*     1.3    59.1    +      -       -      +
     74P  MET      3.6     0.2    -      -       -      -
     75P  TYR*     3.2    24.6    -      -       -      -
    144P  VAL*     5.0     3.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 73 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69P  VAL*     3.3    16.4    -      -       +      +
     70P  VAL      3.7     5.4    -      -       -      +
     72P  SER*     1.3    81.0    +      -       -      +
     74P  MET*     1.3    84.5    +      -       +      +
     75P  TYR*     3.5     6.1    +      -       -      -
     76P  ILE*     4.5    11.1    -      -       -      +
    140P  MET*     3.6    26.2    -      -       +      +
    141P  ILE*     3.8    19.1    -      -       +      -
    144P  VAL*     4.3    22.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 74 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39P  VAL*     5.6     2.9    -      -       -      +
     70P  VAL*     3.0    31.3    +      -       +      +
     71P  ASP*     4.6     3.7    -      -       -      -
     73P  VAL*     1.3   101.5    -      -       +      +
     75P  TYR*     1.3    57.6    +      -       -      +
     76P  ILE*     3.4    11.2    -      -       +      +
     77P  ASP*     3.5    22.4    -      -       +      +
     80P  ALA*     4.9    15.0    -      -       +      -
     81P  PHE*     4.0    30.6    -      -       +      +
     84P  LEU*     5.2     4.5    -      -       +      -
    137P  SER*     4.8    19.5    -      -       -      +
    140P  MET*     4.0    28.0    -      -       +      -
    141P  ILE*     4.7     4.3    -      -       +      -
----------------------------------------------------------
 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