Contacts of the helix formed by residues 138 - 149 (chain C) in PDB entry 5L08


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 138 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  GLU*     3.1    29.9    +      -       -      -
     20C  ALA*     6.0     4.5    -      -       +      +
    109C  SER*     4.3     5.0    -      -       -      -
    117C  LEU*     5.1     1.6    -      -       -      -
    136C  ASP      3.7     2.8    +      -       -      -
    137C  MET*     1.3    74.7    -      -       -      +
    139C  LEU*     1.3    75.2    +      -       -      +
    140C  LEU*     2.9    29.2    +      -       +      +
    141C  ASP*     2.8    40.0    +      -       -      +
    142C  ILE*     2.9    13.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 139 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108C  ILE*     4.1     2.2    -      -       +      -
    109C  SER*     3.9    18.4    -      -       -      +
    112C  VAL*     3.7    38.8    -      -       +      -
    117C  LEU*     4.0    25.8    -      -       +      +
    120C  PHE*     4.8    18.8    -      -       +      -
    124C  LEU*     5.9     0.7    -      -       +      -
    137C  MET      3.9     1.2    +      -       -      -
    138C  ASN*     1.3    78.7    +      -       -      +
    140C  LEU*     1.3    56.1    +      -       -      +
    142C  ILE*     3.2    19.1    +      -       +      +
    143C  PHE*     2.8    65.1    +      -       +      -
    146C  MET*     5.9     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 140 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17C  GLU*     6.0     0.7    -      -       -      +
     20C  ALA      5.1     1.3    -      -       -      +
     21C  SER*     4.4    13.7    -      -       -      +
     24C  PHE*     3.6    50.2    -      -       +      -
    105C  LEU      3.7    17.7    -      -       -      +
    106C  TYR*     3.9    19.7    -      -       +      -
    109C  SER*     3.6    26.5    -      -       -      +
    138C  ASN*     2.9    20.1    +      -       -      +
    139C  LEU*     1.3    72.3    -      -       -      +
    141C  ASP*     1.3    67.8    +      -       -      +
    143C  PHE*     3.3    14.1    +      -       +      +
    144C  ILE*     3.0    26.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 141 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  ALA*     6.0     1.7    -      -       -      +
    136C  ASP      4.5     2.8    -      -       -      +
    137C  MET*     4.1    15.2    -      -       +      -
    138C  ASN*     2.8    37.0    +      -       -      +
    140C  LEU*     1.3    76.9    -      -       -      +
    142C  ILE*     1.3    63.0    +      -       -      +
    144C  ILE*     3.2    19.7    +      -       -      +
    145C  GLU*     3.1    27.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 142 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117C  LEU*     3.8    28.9    -      -       +      -
    121C  LYS*     5.1     6.1    -      -       +      -
    124C  LEU*     3.5    38.1    -      -       +      -
    131C  CYS*     4.7     5.2    -      -       -      -
    133C  LEU*     4.8     4.9    -      -       +      -
    134C  ASP      5.9     0.4    -      -       -      +
    137C  MET*     3.8    31.2    -      -       +      +
    138C  ASN      2.9    16.7    +      -       -      +
    139C  LEU*     3.2    16.6    +      -       +      +
    141C  ASP*     1.3    73.6    -      -       -      +
    143C  PHE*     1.3    67.0    +      -       -      +
    145C  GLU*     3.0     5.7    +      -       -      +
    146C  MET*     2.9    38.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 143 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  PHE*     4.1     9.2    -      +       +      -
    105C  LEU*     3.4    47.1    -      -       +      -
    108C  ILE*     3.9    14.6    -      -       +      -
    139C  LEU*     2.8    51.4    +      -       +      -
    140C  LEU*     3.3    26.5    -      -       +      +
    142C  ILE*     1.3    75.6    -      -       -      +
    144C  ILE*     1.3    61.5    +      -       -      +
    146C  MET*     3.2    17.6    +      -       +      -
    147C  GLU*     2.9    29.8    +      -       -      +
    152C  LEU*     3.4    19.2    -      -       +      +
    160C  LEU*     3.8    20.0    -      -       +      -
    164C  CYS*     6.0     2.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 144 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  PHE*     4.0    13.5    -      -       +      -
     27C  LEU*     3.8    33.9    -      -       +      -
     32C  GLN*     4.5    13.7    -      -       +      +
     33C  ARG*     3.8    35.7    -      -       -      +
     35C  GLN*     5.5     3.4    -      -       -      +
    140C  LEU      3.0    15.9    +      -       -      +
    141C  ASP*     3.2    22.0    +      -       -      +
    143C  PHE*     1.3    75.4    -      -       -      +
    145C  GLU*     1.3    57.8    +      -       -      +
    147C  GLU*     3.1    14.3    +      -       +      +
    148C  LYS*     3.0    32.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 145 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     33C  ARG*     3.1    27.2    +      -       -      -
    131C  CYS*     3.9    16.6    -      -       -      -
    132C  LYS      5.3     1.6    -      -       -      +
    137C  MET*     3.8    21.5    -      -       +      -
    141C  ASP      3.1    17.1    +      -       -      +
    142C  ILE      3.0     8.6    +      -       -      +
    144C  ILE*     1.3    76.4    -      -       -      +
    146C  MET*     1.3    61.0    +      -       -      +
    148C  LYS*     2.9    25.5    +      -       -      +
    149C  ARG*     2.7    58.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 146 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124C  LEU*     3.8    21.5    -      -       +      -
    127C  GLU*     6.2     2.2    -      -       -      -
    131C  CYS*     5.1     8.7    -      -       +      -
    139C  LEU*     5.9     0.2    -      -       +      -
    142C  ILE*     2.9    25.8    +      -       +      +
    143C  PHE*     3.5    39.0    -      -       +      +
    145C  GLU*     1.3    73.4    -      -       -      +
    147C  GLU*     1.3    63.9    +      -       -      +
    149C  ARG*     3.2     4.0    +      -       -      +
    150C  VAL      3.1     3.5    +      -       -      -
    151C  ILE*     2.9    60.2    +      -       +      +
    152C  LEU*     3.7    11.9    -      -       +      -
    160C  LEU*     3.7    33.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 147 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  PHE*     4.4     1.2    -      -       -      -
     27C  LEU*     5.2     1.4    -      -       -      +
     32C  GLN*     5.7     8.7    +      -       -      +
    101C  TYR*     4.5     6.5    -      -       -      +
    102C  ARG*     2.7    46.1    +      -       -      -
    105C  LEU*     4.2    11.3    -      -       -      +
    143C  PHE      2.9    22.8    +      -       -      +
    144C  ILE*     3.1    15.8    +      -       +      +
    146C  MET*     1.3    76.2    -      -       -      +
    148C  LYS*     1.3    57.1    -      -       -      +
    150C  VAL*     2.7    22.7    +      -       -      +
    152C  LEU*     3.4    30.0    -      -       +      +
    153C  GLY*     5.3     0.2    -      -       -      -
     73F  ASP*     3.5    15.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 148 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  GLN*     3.6    20.4    +      -       -      +
     33C  ARG*     4.0    15.6    -      -       -      +
    144C  ILE*     3.0    20.8    +      -       +      +
    145C  GLU*     2.9    46.2    +      -       -      +
    147C  GLU*     1.3    76.0    -      -       -      +
    149C  ARG*     1.3    64.1    +      -       -      +
     15F  ASP*     5.5     1.4    -      -       -      +
     18F  ASP*     3.7    18.6    +      -       -      -
     69F  ILE      5.4     1.7    +      -       -      -
     70F  ASN      3.1    10.3    -      -       -      +
     71F  ARG*     3.3    33.4    -      -       -      +
     72F  LEU      2.9    27.9    +      -       -      -
     73F  ASP*     3.1    17.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 149 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128C  ILE*     5.9     0.4    -      -       +      -
    130C  LYS*     2.7    60.9    +      -       +      -
    131C  CYS*     3.7    12.5    -      -       -      +
    132C  LYS*     4.1     4.8    -      -       -      +
    145C  GLU*     2.7    58.4    +      -       -      +
    146C  MET*     3.7     7.9    -      -       -      +
    147C  GLU      3.1     0.6    -      -       -      -
    148C  LYS*     1.3    86.3    -      -       -      +
    150C  VAL*     1.3    70.0    +      -       -      +
    151C  ILE*     3.2    24.5    +      -       +      +
     69F  ILE      5.5     1.4    +      -       -      -
     70F  ASN*     3.6    29.4    -      -       +      +
     72F  LEU*     3.8    19.0    -      -       +      +
    110F  GLU*     5.1     9.1    +      -       -      -
----------------------------------------------------------
 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