Contacts of the helix formed by residues 61 - 73 (chain C) in PDB entry 5U0A


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 LEU 61 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59C  ILE*     3.2    10.4    -      -       +      +
     60C  PRO*     1.3    90.5    -      -       +      +
     62C  PRO*     1.3    62.0    -      -       -      +
     63C  PRO*     4.1     8.1    -      -       +      -
     64C  GLY*     2.8    13.0    +      -       -      +
     65C  ALA*     2.8    25.5    +      -       -      +
    153C  TRP*     4.8     9.0    -      -       +      -
    183C  TRP*     4.5    21.1    -      -       +      +
    184C  HIS*     3.4    38.6    -      -       +      +
    187C  ALA*     4.5    17.3    -      -       +      -
    390C  TRP*     5.0    14.1    -      -       +      +
     20N  MET*     6.4     2.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 62 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59C  ILE      5.2     0.2    -      -       -      +
     60C  PRO      3.2    11.7    -      -       -      +
     61C  LEU*     1.3    84.2    -      -       -      +
     63C  PRO*     1.3    60.4    -      -       +      +
     65C  ALA      3.8     0.7    -      -       -      +
     66C  ALA*     2.8    28.4    +      -       -      +
    191C  TYR*     5.1     0.4    -      -       -      -
    377C  PHE*     3.4    40.1    -      -       +      +
    378C  GLY      4.7     2.9    -      -       -      +
    379C  PHE*     6.1     0.4    -      -       -      -
    390C  TRP*     3.3    44.9    -      -       +      +
    391C  PHE      4.1     9.0    -      -       -      +
    392C  THR*     3.8    17.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 63 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61C  LEU*     3.4    12.8    -      -       +      -
     62C  PRO*     1.3    96.5    -      -       +      +
     64C  GLY*     1.3    65.9    +      -       -      +
     66C  ALA*     2.9    12.3    +      -       -      +
     67C  VAL*     3.0    18.4    +      -       -      +
    153C  TRP*     5.5     5.2    -      -       +      +
    187C  ALA*     3.8    18.2    -      -       +      -
    191C  TYR*     3.0    40.2    -      -       +      -
    379C  PHE*     4.7    10.5    -      -       +      -
    390C  TRP*     4.5    22.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 64 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59C  ILE*     4.0    14.3    -      -       -      +
     61C  LEU*     2.8    15.5    +      -       -      +
     63C  PRO*     1.3    76.5    -      -       -      +
     65C  ALA*     1.3    56.8    +      -       -      +
     68C  LEU*     2.9    26.5    +      -       -      +
    183C  TRP      4.2    16.2    -      -       -      -
    186C  LEU*     3.0    20.4    -      -       -      +
    187C  ALA*     4.0     3.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 65 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59C  ILE*     3.7    20.9    -      -       +      +
     61C  LEU      2.8    17.6    +      -       -      +
     62C  PRO      4.0     0.2    -      -       -      +
     64C  GLY*     1.3    73.9    -      -       -      -
     66C  ALA*     1.3    58.2    +      -       -      +
     68C  LEU*     3.7     8.1    -      -       +      -
     69C  TRP*     2.9    43.5    +      -       +      +
    377C  PHE*     3.4    35.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 66 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  PRO      2.8    16.5    +      -       -      +
     63C  PRO      2.9     3.6    +      -       -      +
     65C  ALA*     1.3    78.9    -      -       -      +
     67C  VAL*     1.3    60.7    +      -       +      +
     70C  ARG*     3.2    29.0    +      -       -      +
    191C  TYR*     3.1    29.6    -      -       +      +
    215C  LEU*     5.1     1.8    -      -       +      -
    220C  SER*     3.5    24.7    -      -       -      +
    222C  HIS*     3.8     6.8    +      -       -      -
    377C  PHE*     4.0     6.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 67 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63C  PRO      3.0    12.9    +      -       -      +
     66C  ALA*     1.3    76.1    -      -       -      +
     68C  LEU*     1.3    64.6    +      -       -      +
     70C  ARG*     3.0    11.9    +      -       +      +
     71C  ILE*     2.9    31.2    +      -       +      +
    133C  LEU*     5.9     1.1    -      -       +      -
    186C  LEU*     3.3    42.4    -      -       +      +
    189C  LEU*     5.5     1.1    -      -       +      -
    190C  GLY*     3.6    23.3    -      -       -      +
    191C  TYR*     4.7     3.6    -      -       +      -
    215C  LEU*     4.7    10.1    -      -       +      -
    273C  LEU*     4.5    13.5    -      -       +      -
    276C  PHE*     4.9     9.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 68 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  TRP*     3.5    31.2    -      -       +      -
     28C  LEU*     4.5    11.2    -      -       +      -
     44C  LEU*     5.7     0.2    -      -       +      -
     57C  VAL*     5.2     5.4    -      -       +      +
     59C  ILE*     3.8    17.3    -      -       +      -
     64C  GLY      2.9    19.9    +      -       -      +
     65C  ALA*     3.0     9.4    +      -       -      +
     67C  VAL*     1.3    78.8    -      -       -      +
     69C  TRP*     1.3    68.9    +      -       +      +
     71C  ILE*     3.0    24.8    -      -       +      +
     72C  LEU*     2.8    56.0    +      -       +      +
    186C  LEU*     3.3     9.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 69 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56C  ASP*     3.2    22.4    -      -       -      -
     57C  VAL*     3.5    18.4    +      -       +      -
     65C  ALA*     2.9    33.7    +      -       +      +
     68C  LEU*     1.3    84.3    -      -       +      +
     70C  ARG*     1.3    56.4    +      -       -      +
     72C  LEU*     4.0    16.5    -      -       +      +
     73C  ALA*     3.1    28.7    +      -       -      +
    222C  HIS*     3.5    31.4    -      +       +      +
    224C  LEU*     5.0     2.9    -      -       +      -
    228C  LEU*     4.4    11.0    -      -       +      -
    231C  SER*     4.8     3.1    -      -       -      -
    232C  LEU*     3.7    26.2    -      -       +      -
    235C  ASN*     3.4    24.6    +      -       -      +
    312C  TYR*     4.5     2.6    +      -       -      -
    375C  ARG*     3.0    32.9    -      -       -      +
    377C  PHE*     3.5    21.6    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 70 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  ALA      3.2    17.4    +      -       -      +
     67C  VAL*     3.0    20.5    +      -       +      +
     68C  LEU      3.0     0.2    -      -       -      -
     69C  TRP*     1.3    77.4    -      -       -      +
     71C  ILE*     1.3    61.3    +      -       -      +
     73C  ALA*     3.5     3.7    +      -       -      +
     74C  LEU      3.4     3.5    +      -       -      -
    215C  LEU*     3.9    26.6    -      -       -      +
    220C  SER*     3.2    33.5    -      -       -      -
    222C  HIS*     4.1     4.4    +      -       -      -
    271C  LEU*     2.9    66.8    +      -       +      +
    272C  ARG*     4.6     3.2    -      -       -      +
    273C  LEU*     3.9     8.1    -      -       +      -
    310C  ASP*     2.5    40.2    +      -       -      -
    312C  TYR*     3.6    24.8    -      -       +      +
    313C  LEU*     4.5     4.8    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 71 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  TRP*     5.7     0.7    -      -       +      -
     44C  LEU*     4.2    15.0    -      -       +      -
     67C  VAL*     2.9    24.3    +      -       +      +
     68C  LEU*     3.0    38.6    -      -       +      +
     70C  ARG*     1.3    72.9    -      -       -      +
     72C  LEU*     1.3    84.3    +      -       +      +
     73C  ALA      3.1     1.3    -      -       -      -
     74C  LEU*     2.8    19.9    +      -       -      +
     75C  ILE*     3.2    20.4    +      -       +      +
    132C  TRP*     5.7     9.0    -      -       +      +
    133C  LEU*     5.2    11.0    -      -       +      -
    186C  LEU*     4.9     7.4    -      -       +      -
    249C  TRP*     4.4    17.2    -      -       +      -
    273C  LEU*     3.8    30.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 72 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28C  LEU*     5.4     4.7    -      -       +      -
     44C  LEU*     4.1    32.1    -      -       +      -
     47C  VAL*     5.2    14.4    -      -       +      -
     48C  LEU*     4.2    19.5    -      -       +      -
     57C  VAL*     5.6     3.1    -      -       +      -
     68C  LEU*     2.8    43.1    +      -       +      +
     69C  TRP*     4.3    26.5    -      -       +      +
     71C  ILE*     1.3    77.2    -      -       +      +
     73C  ALA*     1.3    61.0    +      -       -      +
     74C  LEU      3.3     0.5    +      -       -      -
     75C  ILE*     3.3     8.3    +      -       +      +
     76C  THR*     3.1    27.3    +      -       -      +
    228C  LEU*     5.7     1.8    -      -       +      -
    232C  LEU*     4.5    17.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 73 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69C  TRP      3.1    21.6    +      -       -      +
     70C  ARG      3.6     6.7    -      -       -      +
     71C  ILE      3.1     0.4    -      -       -      -
     72C  LEU*     1.3    76.9    -      -       -      +
     74C  LEU*     1.3    56.4    +      -       -      +
     77C  ALA*     2.3    37.7    -      -       +      +
     78C  ARG      3.6     1.0    +      -       -      -
    232C  LEU*     5.0     3.4    -      -       -      +
    235C  ASN*     4.0    28.9    -      -       +      +
    236C  ILE*     4.4     5.9    -      -       -      +
    237C  PRO*     5.4     0.6    -      -       +      +
    267C  LEU*     4.8     2.6    -      -       -      +
    271C  LEU*     4.2    10.0    -      -       +      +
    312C  TYR*     4.0     5.6    -      -       -      +
----------------------------------------------------------
 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