Contacts of the helix formed by residues 1021 - 1036 (chain D) in PDB entry 6PUO


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 PRO1021 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    964A  ASP*     5.5    11.0    -      -       +      -
   1020D  PHE*     1.3    87.7    -      -       -      +
   1022D  GLU*     1.3    61.3    +      -       +      +
   1023D  TRP      3.5     0.7    -      -       -      -
   1024D  LEU*     4.0     7.4    -      -       +      -
   1025D  THR*     2.9    37.1    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU1022 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    964A  ASP*     6.5     0.9    -      -       +      -
    968A  ARG*     6.0     7.0    -      -       +      -
   1020D  PHE      3.3     3.1    -      -       -      -
   1021D  PRO*     1.3    82.8    -      -       +      +
   1023D  TRP*     1.3    58.4    +      -       -      +
   1025D  THR*     4.2     2.1    -      -       -      -
   1026D  VAL*     2.9    33.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP1023 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1020D  PHE      4.3     5.4    +      -       -      +
   1022D  GLU*     1.3    78.0    -      -       -      +
   1024D  LEU*     1.3    57.5    +      -       -      +
   1026D  VAL*     3.5     4.8    +      -       -      +
   1027D  LEU*     2.9    31.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1024 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    956D  LEU*     6.2     4.7    -      -       +      -
   1020D  PHE      4.5     3.7    +      -       -      +
   1021D  PRO*     3.7    12.2    +      -       +      +
   1022D  GLU      3.4     0.4    -      -       -      -
   1023D  TRP*     1.3    80.9    -      -       -      +
   1025D  THR*     1.3    57.5    +      -       -      +
   1027D  LEU*     3.3     6.1    +      -       -      +
   1028D  LEU*     3.0    29.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1025 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1021D  PRO*     2.9    23.7    +      -       -      -
   1022D  GLU*     4.2     2.0    -      -       -      -
   1024D  LEU*     1.3    73.6    -      -       -      +
   1026D  VAL*     1.3    60.3    +      -       -      +
   1028D  LEU*     3.5     4.9    +      -       -      +
   1029D  LEU*     2.9    43.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL1026 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1022D  GLU      2.9    21.0    +      -       -      +
   1023D  TRP*     3.8     5.2    -      -       -      +
   1025D  THR*     1.3    76.3    -      -       -      +
   1027D  LEU*     1.3    57.9    +      -       -      +
   1029D  LEU*     4.1     4.7    -      -       -      +
   1030D  CYS*     2.9    34.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1027 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1023D  TRP      2.9    18.6    +      -       -      +
   1024D  LEU*     3.6     7.0    -      -       -      +
   1026D  VAL*     1.3    74.8    -      -       -      +
   1028D  LEU*     1.3    60.1    +      -       -      +
   1030D  CYS*     3.2    12.6    -      -       -      -
   1031D  LEU*     2.9    30.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1028 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    948D  PHE*     5.5     1.6    -      -       -      -
    952D  LYS*     6.4     1.6    -      -       +      -
   1024D  LEU      3.0    17.1    +      -       -      +
   1025D  THR*     4.0     5.6    -      -       -      +
   1027D  LEU*     1.3    75.0    -      -       -      +
   1029D  LEU*     1.3    60.4    +      -       +      +
   1031D  LEU*     3.3     7.1    +      -       -      +
   1032D  TYR*     3.0    28.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1029 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    975A  TYR*     4.7    20.0    -      -       +      -
   1025D  THR*     2.9    28.5    +      -       -      +
   1026D  VAL*     4.1     4.5    -      -       -      +
   1028D  LEU*     1.3    77.5    -      -       +      +
   1030D  CYS*     1.3    59.1    +      -       -      +
   1032D  TYR*     3.4     6.6    +      -       +      +
   1033D  LEU*     2.9    44.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS1030 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    938A  LEU*     5.2     1.7    -      -       -      +
   1026D  VAL      2.9    18.4    +      -       -      +
   1027D  LEU*     3.2    24.5    -      -       -      -
   1029D  LEU*     1.3    73.9    -      -       -      +
   1031D  LEU*     1.3    62.1    +      -       -      +
   1033D  LEU*     3.8     6.4    -      -       -      +
   1034D  LEU*     2.8    32.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1031 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    948D  PHE*     4.6    17.0    -      -       +      -
   1027D  LEU      2.9    19.4    +      -       -      +
   1028D  LEU*     3.6     7.9    -      -       -      +
   1029D  LEU      3.3     0.2    -      -       -      -
   1030D  CYS*     1.3    80.2    -      -       -      +
   1032D  TYR*     1.3    57.7    +      -       -      +
   1034D  LEU*     3.4     8.6    +      -       -      +
   1035D  PHE*     3.0    40.7    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR1032 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    948D  PHE*     4.7    12.7    -      -       +      -
    977D  THR*     6.6     0.2    -      -       -      -
   1028D  LEU      3.0    16.4    +      -       -      +
   1029D  LEU*     3.7    10.1    -      -       +      +
   1031D  LEU*     1.3    77.0    -      -       -      +
   1033D  LEU*     1.3    60.2    +      -       +      +
   1036D  THR*     2.7    52.2    +      -       +      +
   1037D  ASN*     3.9     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1033 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    938A  LEU*     5.1     2.8    -      -       -      +
    941A  LEU*     6.4     3.8    -      -       +      -
    978A  ILE*     4.7    23.8    -      -       +      +
    979A  PHE*     5.7     4.3    -      -       +      -
   1029D  LEU*     2.9    35.6    +      -       +      +
   1030D  CYS*     4.0     7.2    -      -       -      +
   1032D  TYR*     1.3    78.3    -      -       +      +
   1034D  LEU*     1.3    65.0    +      -       -      +
   1037D  ASN*     3.3    47.6    -      -       +      +
   1038D  ILE*     3.8     8.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU1034 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    934A  VAL*     5.3     3.8    -      -       +      +
    935A  PHE*     5.1    12.6    -      -       +      -
    938A  LEU*     3.7    36.3    -      -       +      +
   1030D  CYS*     2.8    20.1    +      -       -      +
   1031D  LEU*     3.5     7.6    -      -       -      +
   1032D  TYR      3.2     0.2    -      -       -      -
   1033D  LEU*     1.3    79.6    -      -       -      +
   1035D  PHE*     1.3    99.3    +      -       +      +
   1038D  ILE*     3.4    12.7    -      -       -      +
   1039D  LEU*     3.3    20.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE1035 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    908A  LEU*     5.8    11.2    -      -       +      -
    944D  TRP*     3.5    41.7    -      +       +      -
    948D  PHE*     4.4    10.8    -      +       -      -
   1031D  LEU*     3.0    27.7    +      -       +      +
   1034D  LEU*     1.3   101.5    -      -       +      +
   1036D  THR*     1.3    66.2    +      -       +      +
   1039D  LEU*     3.5    36.0    +      -       +      +
   1040D  LEU*     4.5     5.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR1036 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    944D  TRP*     3.7    34.8    -      -       +      +
    945D  VAL*     6.2     0.7    -      -       +      -
    948D  PHE*     5.7     1.3    -      -       +      -
    977D  THR      5.7     3.1    +      -       -      +
   1032D  TYR*     2.7    24.3    +      -       +      +
   1035D  PHE*     1.3    77.1    -      -       -      +
   1037D  ASN*     1.3    89.0    +      -       -      +
   1038D  ILE      3.1     2.4    +      -       -      -
   1039D  LEU      4.4     0.3    +      -       -      -
   1040D  LEU*     4.8     9.6    +      -       -      +
   1041D  LEU*     3.3    14.0    -      -       -      +
----------------------------------------------------------
 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