Contacts of the helix formed by residues 747 - 766 (chain N) in PDB entry 5A31


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 LYS 747 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    514N  LEU*     5.3    15.9    -      -       +      +
    517N  ASN*     5.9     1.2    +      -       -      -
    748N  GLU*     1.3    62.1    +      -       -      +
    749N  GLU*     3.5     4.7    -      -       -      +
    750N  GLU*     3.1    17.5    -      -       -      +
    751N  LEU*     2.9    28.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 748 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    747N  LYS*     1.3    74.1    -      -       -      +
    749N  GLU*     1.3    69.0    +      -       -      +
    750N  GLU      3.0     1.3    -      -       -      -
    751N  LEU*     3.1     5.8    +      -       -      +
    752N  LEU*     3.0    38.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 749 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    747N  LYS      3.5     2.6    -      -       -      +
    748N  GLU*     1.3    81.7    +      -       -      +
    750N  GLU*     1.3    56.0    +      -       -      +
    752N  LEU*     4.0     5.1    -      -       -      +
    753N  LEU*     3.0    31.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 750 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    513N  ASP*     5.7     1.8    -      -       -      +
    747N  LYS*     3.1    21.4    -      -       -      +
    749N  GLU*     1.3    79.3    -      -       -      +
    751N  LEU*     1.3    57.8    +      -       -      +
    753N  LEU*     3.0     7.2    +      -       -      +
    754N  PHE*     2.9    48.2    +      -       +      -
    788N  ALA*     4.2    18.6    -      -       +      -
    789N  GLU      5.4     3.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 751 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    747N  LYS      2.9    17.9    +      -       -      +
    748N  GLU*     3.1     4.4    +      -       -      +
    750N  GLU*     1.3    69.2    -      -       -      +
    752N  LEU*     1.3    61.4    +      -       -      +
    754N  PHE*     3.4    16.0    +      -       +      +
    755N  TRP      3.1    21.1    +      -       -      -
    794N  GLU*     5.8     3.8    -      -       -      +
    798N  TYR*     3.3    30.9    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 752 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    748N  GLU*     3.0    27.8    +      -       +      +
    749N  GLU*     4.3     4.5    -      -       -      +
    751N  LEU*     1.3    73.5    -      -       -      +
    753N  LEU*     1.3    65.8    +      -       -      +
    755N  TRP*     3.3    16.5    +      -       +      +
    756N  THR*     3.1    25.2    +      -       -      -
    798N  TYR*     4.9     8.1    -      -       -      +
    802N  LYS*     5.7     1.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 753 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    749N  GLU      3.0    22.5    +      -       -      +
    750N  GLU*     3.0     6.7    +      -       -      +
    752N  LEU*     1.3    73.6    -      -       -      +
    754N  PHE*     1.3    66.9    +      -       -      +
    756N  THR*     3.2    14.7    +      -       +      +
    757N  TYR*     3.0    48.2    +      -       +      +
    781N  VAL*     4.2     9.0    -      -       +      -
    786N  ALA*     3.7    30.1    -      -       +      -
    788N  ALA*     5.5     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 754 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    750N  GLU*     2.9    34.9    +      -       +      -
    751N  LEU*     3.5    13.7    -      -       +      +
    753N  LEU*     1.3    76.0    -      -       -      +
    755N  TRP*     1.3    57.9    +      -       -      +
    757N  TYR*     3.1     5.1    +      -       -      +
    758N  ILE*     2.8    43.6    +      -       +      +
    777N  LEU*     3.9    22.9    -      -       +      -
    781N  VAL*     3.3    33.2    -      -       +      -
    782N  VAL*     4.8     0.9    -      -       +      -
    788N  ALA*     3.8    26.2    -      -       +      -
    789N  GLU      3.8    17.0    -      -       -      -
    790N  ILE*     3.8    34.3    -      -       +      -
    794N  GLU*     5.7     0.2    -      -       -      -
    798N  TYR*     5.1     5.4    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 755 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    751N  LEU      3.1     7.2    +      -       -      +
    752N  LEU*     3.7    18.4    -      -       +      +
    753N  LEU      3.2     0.2    -      -       -      -
    754N  PHE*     1.3    75.7    -      -       -      +
    756N  THR*     1.3    64.5    +      -       -      +
    758N  ILE*     3.8    31.8    -      -       +      +
    759N  GLN*     2.9    69.0    +      -       +      +
    798N  TYR*     3.3    19.7    +      +       +      +
    802N  LYS*     3.5    29.4    -      -       +      +
    807N  GLN*     3.7    49.4    +      -       +      -
    808N  LEU*     3.8    22.9    -      -       +      -
    817N  LEU*     4.5     3.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 756 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    752N  LEU      3.1    14.8    +      -       -      -
    753N  LEU*     3.2    19.9    +      -       +      +
    755N  TRP*     1.3    78.1    -      -       -      +
    757N  TYR*     1.3    64.7    +      -       +      +
    759N  GLN*     3.5    12.5    +      -       -      +
    760N  ALA*     3.1    21.5    +      -       +      +
     43Q  MET*     5.4    12.8    -      -       +      -
     53Q  PHE*     6.5     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 757 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    753N  LEU*     3.0    50.8    +      -       +      +
    754N  PHE      3.1     6.5    +      -       -      +
    756N  THR*     1.3    79.9    -      -       +      +
    758N  ILE*     1.3    57.9    +      -       -      +
    760N  ALA*     3.2     6.7    +      -       -      +
    761N  MET*     2.9    37.5    +      -       +      +
    776N  MET      5.9     0.2    -      -       -      -
    777N  LEU*     4.0    13.7    -      -       +      -
    780N  PHE*     3.7    27.0    +      +       +      -
    781N  VAL*     3.5    31.4    -      -       +      -
    785N  PRO*     5.3     4.9    -      -       -      +
    786N  ALA*     5.6     2.4    -      -       -      +
     36Q  GLN*     5.4     2.4    +      -       -      -
     39Q  LEU*     5.2     9.3    -      -       +      +
     53Q  PHE*     4.4    28.5    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 758 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    754N  PHE*     2.8    28.7    +      -       +      +
    755N  TRP*     3.7    27.6    -      -       +      +
    757N  TYR*     1.3    73.1    -      -       -      +
    759N  GLN*     1.3    65.9    +      -       -      +
    761N  MET*     3.3     9.8    +      -       -      +
    762N  LEU*     3.0    41.5    +      -       +      +
    773N  ILE*     4.1    19.5    -      -       +      -
    777N  LEU*     4.2    21.8    -      -       +      -
    795N  LEU*     4.3     6.3    -      -       +      -
    798N  TYR*     4.4    11.9    -      -       +      -
    799N  LEU*     3.9    29.8    -      -       +      -
    808N  LEU*     4.7     1.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 759 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    755N  TRP*     2.9    75.7    +      -       +      +
    756N  THR*     3.7    10.9    +      -       -      +
    758N  ILE*     1.3    76.9    -      -       -      +
    760N  ALA*     1.3    57.0    +      -       -      +
    763N  THR*     2.7    34.1    +      -       -      +
    817N  LEU*     3.6    19.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 760 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    756N  THR      3.1    15.0    +      -       -      +
    757N  TYR      3.2     6.2    +      -       -      +
    759N  GLN*     1.3    73.1    -      -       -      +
    761N  MET*     1.3    66.6    +      -       -      +
    763N  THR*     3.6     5.8    -      -       -      -
    764N  ASN*     2.7    39.7    +      -       -      +
     53Q  PHE*     4.3    33.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 761 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    757N  TYR*     2.9    29.3    +      -       +      +
    758N  ILE*     3.4     9.2    -      -       -      +
    760N  ALA*     1.3    75.5    -      -       -      +
    762N  LEU*     1.3    59.6    +      -       +      +
    764N  ASN*     5.3     0.2    -      -       -      -
    765N  LEU*     2.9    42.3    +      -       +      +
    768N  LEU*     3.5    27.6    -      -       +      -
    773N  ILE*     4.1    22.0    -      -       -      -
    776N  MET*     3.7    38.6    -      -       +      -
    777N  LEU*     3.8    30.3    -      -       +      +
    780N  PHE*     6.1     1.3    -      -       +      -
     53Q  PHE*     5.8     1.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 762 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758N  ILE*     3.0    30.0    +      -       +      +
    761N  MET*     1.3    77.2    -      -       +      +
    763N  THR*     1.3    60.9    +      -       -      +
    766N  GLU*     2.9    31.7    +      -       -      +
    767N  SER*     4.0     6.1    -      -       -      -
    768N  LEU*     3.8    31.2    -      -       +      +
    773N  ILE*     4.9     3.8    -      -       +      -
    808N  LEU*     3.6    30.5    -      -       +      -
    815N  TYR*     3.5    29.6    -      -       +      +
    816N  ARG*     4.2     9.0    -      -       -      +
    817N  LEU*     3.7    25.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 763 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    759N  GLN*     2.7    24.4    +      -       -      +
    760N  ALA*     3.6     7.1    -      -       -      -
    762N  LEU*     1.3    78.8    -      -       -      +
    764N  ASN*     1.3    71.8    +      -       -      +
    766N  GLU*     4.4     2.9    +      -       -      +
    817N  LEU*     3.5    15.5    -      -       -      +
     80Q  LYS*     6.1     3.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 764 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    760N  ALA*     2.7    34.8    +      -       -      +
    761N  MET*     4.3     0.9    -      -       -      +
    763N  THR*     1.3    90.5    -      -       -      +
    765N  LEU*     1.3    72.9    +      -       +      +
    766N  GLU*     3.5     1.0    -      -       -      +
     53Q  PHE*     4.6    19.7    -      -       -      +
     54Q  PRO      5.5     4.0    +      -       -      +
     55Q  GLU*     6.1     2.5    -      -       -      -
     56Q  SER      5.9     2.9    -      -       -      +
     63Q  VAL*     4.8    20.2    -      -       +      +
     80Q  LYS*     5.6     4.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 765 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    761N  MET*     2.9    26.2    +      -       +      +
    764N  ASN*     1.3    86.2    -      -       +      +
    766N  GLU*     1.3    58.2    +      -       -      +
    767N  SER*     2.9    20.0    +      -       -      +
    768N  LEU*     4.2    21.0    -      -       +      +
    772N  ARG*     4.6     9.5    +      -       -      +
    776N  MET*     3.5    38.6    -      -       +      -
     55Q  GLU*     6.1     1.3    -      -       +      -
     56Q  SER*     4.2    28.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 766 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    761N  MET      4.1     0.2    +      -       -      -
    762N  LEU*     2.9    25.3    +      -       -      +
    763N  THR      4.9     2.5    -      -       -      +
    764N  ASN      3.5     2.7    -      -       -      +
    765N  LEU*     1.3    77.3    -      -       -      +
    767N  SER*     1.3    57.8    +      -       -      +
    816N  ARG*     3.3    25.1    -      -       -      +
    817N  LEU      4.7     1.9    +      -       -      -
----------------------------------------------------------
 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