Contacts of the helix formed by residues 138 - 152 (chain A) in PDB entry 4OGB


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 PRO 138 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  LYS      3.4     9.4    -      -       -      +
    137A  ILE*     1.3    87.9    -      -       +      +
    139A  VAL*     1.3    65.2    +      -       -      +
    140A  ASP*     3.3    10.8    -      -       -      +
    141A  THR*     3.1    25.8    +      -       +      +
    142A  LEU      3.0    18.4    +      -       -      -
    248A  ILE      5.2     0.9    -      -       -      +
    250A  GLN*     3.9    22.2    -      -       +      +
    251A  ASN*     4.6     3.6    -      -       -      +
    503A  EDO      5.2     4.9    -      -       -      +
    511A  DMS      3.7    22.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 139 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  HIS*     5.5     3.5    -      -       -      +
    127A  GLN*     4.7    11.2    -      -       -      +
    132A  LEU*     3.4    30.7    -      -       +      -
    137A  ILE      4.6     1.1    -      -       -      +
    138A  PRO*     1.3    71.0    -      -       -      +
    140A  ASP*     1.3    65.7    +      -       +      +
    142A  LEU*     3.2     3.5    +      -       -      +
    143A  ILE*     2.9    40.3    +      -       +      +
    503A  EDO      6.0     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 140 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  PRO*     3.7     6.9    -      -       -      +
    139A  VAL*     1.3    79.7    +      -       +      +
    141A  THR*     1.3    58.9    +      -       -      +
    143A  ILE*     3.9     8.3    -      -       -      +
    144A  THR*     2.6    39.7    +      -       -      +
    245A  ASN*     2.9    22.4    +      -       -      +
    511A  DMS      3.0    35.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 141 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138A  PRO*     3.1    29.8    +      -       +      +
    140A  ASP*     1.3    78.9    -      -       -      +
    142A  LEU*     1.3    57.3    +      -       -      +
    145A  TYR*     2.9    30.3    +      -       -      +
    245A  ASN*     2.8    38.7    +      -       -      +
    246A  CYS      3.7     0.4    -      -       -      -
    247A  ASP      3.6    38.6    -      -       -      +
    248A  ILE*     3.8     6.1    -      -       -      +
    250A  GLN*     3.9     5.2    +      -       -      +
    511A  DMS      3.6     7.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 142 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    123A  HIS*     4.2    18.4    -      -       +      -
    126A  PHE*     3.9    48.5    -      -       +      -
    132A  LEU*     3.9    20.0    -      -       +      -
    137A  ILE*     3.9     9.6    -      -       +      -
    138A  PRO      3.0    12.2    +      -       -      +
    139A  VAL*     3.2     9.2    +      -       -      +
    141A  THR*     1.3    77.2    -      -       -      +
    143A  ILE*     1.3    58.0    +      -       -      +
    145A  TYR*     3.4     0.9    +      -       +      +
    146A  LEU*     2.9    60.1    +      -       +      +
    248A  ILE*     3.6    22.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 143 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119A  THR*     4.7     8.3    -      -       +      -
    123A  HIS*     4.3    28.7    -      -       +      +
    139A  VAL*     2.9    27.9    +      -       +      +
    140A  ASP*     4.0     7.0    -      -       -      +
    142A  LEU*     1.3    77.9    -      -       +      +
    144A  THR*     1.3    63.8    +      -       -      +
    146A  LEU*     3.3     6.1    +      -       -      +
    147A  MET*     3.0    52.3    +      -       +      +
    349C  GLU      5.4     2.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 144 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140A  ASP*     2.6    32.0    +      -       -      +
    143A  ILE*     1.3    73.8    -      -       -      +
    145A  TYR*     1.3    62.7    +      -       -      +
    147A  MET*     4.0     6.9    -      -       -      +
    148A  THR*     2.7    32.1    +      -       -      +
    244A  GLU      3.7    23.3    -      -       -      +
    245A  ASN*     3.5    20.2    +      -       +      +
    246A  CYS*     3.9     6.1    -      -       -      -
    350C  ARG*     4.4    29.6    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 145 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  MET*     6.1     0.4    -      -       +      -
    141A  THR      2.9    15.1    +      -       -      +
    142A  LEU      3.9     0.7    -      -       -      +
    144A  THR*     1.3    78.7    -      -       -      +
    146A  LEU*     1.3    63.8    +      -       +      +
    148A  THR*     3.1     2.5    +      -       -      -
    149A  LEU*     2.7    57.3    +      -       +      +
    195A  PHE*     3.4    32.3    -      +       -      -
    199A  ILE*     3.6    10.0    -      -       -      +
    237A  GLY      2.7    28.6    +      -       -      -
    240A  LEU*     3.9    20.2    -      -       +      -
    241A  LEU*     3.8    20.4    -      -       +      -
    246A  CYS*     3.4    35.4    -      -       +      +
    248A  ILE*     3.7    20.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 146 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  LEU*     4.9     4.6    -      -       +      +
    119A  THR*     3.5    38.9    +      -       +      +
    122A  MET*     3.7    45.1    -      -       +      -
    123A  HIS*     3.9     9.2    -      -       +      +
    142A  LEU*     2.9    47.6    +      -       +      +
    143A  ILE*     3.8     5.2    -      -       -      +
    145A  TYR*     1.3    89.8    -      -       +      +
    147A  MET*     1.3    57.5    +      -       -      +
    149A  LEU*     3.2     9.4    +      -       +      +
    150A  GLU*     2.7    32.6    +      -       -      +
    248A  ILE*     6.2     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 147 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  ARG*     3.7    28.0    -      -       -      +
    119A  THR*     3.6    16.8    -      -       +      +
    143A  ILE*     3.0    39.4    +      -       +      +
    144A  THR*     4.0     5.2    -      -       -      +
    146A  LEU*     1.3    76.4    -      -       -      +
    148A  THR*     1.3    58.1    +      -       -      +
    150A  GLU*     3.3     1.2    +      -       -      +
    151A  ASP*     2.8    39.1    +      -       -      +
    349C  GLU*     3.6    56.1    -      -       +      +
    350C  ARG*     4.5    12.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 148 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  THR      2.7    21.8    +      -       -      -
    145A  TYR*     3.4     5.2    -      -       -      -
    147A  MET*     1.3    73.6    -      -       -      +
    149A  LEU*     1.3    65.3    +      -       -      +
    151A  ASP*     3.3     2.1    +      -       -      +
    152A  HIS*     2.9    29.3    +      -       -      -
    240A  LEU*     3.9    26.7    -      -       +      -
    243A  GLU*     3.5    24.1    +      -       -      +
    246A  CYS*     3.5    15.7    -      -       -      -
    514A  EDO      3.9     8.3    -      -       -      -
    350C  ARG*     3.3    26.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 149 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  LEU*     3.7    16.6    -      -       +      -
    145A  TYR*     2.7    50.4    +      -       +      +
    146A  LEU*     3.5    10.5    -      -       +      +
    148A  THR*     1.3    71.7    -      -       -      +
    150A  GLU*     1.3    65.0    +      -       -      +
    152A  HIS*     3.0    13.9    +      -       -      +
    153A  TYR*     3.5    11.4    +      -       +      -
    198A  ALA*     3.6    29.2    -      -       +      +
    199A  ILE*     3.8    23.3    -      -       +      -
    202A  VAL*     3.8    25.8    -      -       +      -
    237A  GLY*     4.6     1.3    -      -       -      -
    240A  LEU*     3.9    13.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 150 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115A  ASN      3.9     0.7    -      -       -      +
    116A  ARG*     3.3    34.3    +      -       -      +
    117A  PRO*     3.1     3.6    -      -       -      +
    118A  LEU*     2.8    42.3    +      -       +      +
    119A  THR*     2.8    32.3    +      -       -      +
    146A  LEU      2.7    19.7    +      -       -      +
    149A  LEU*     1.3    74.8    -      -       -      +
    151A  ASP*     1.3    60.5    +      -       -      +
    153A  TYR*     3.1    15.8    +      -       -      +
    162A  ASN*     2.8    34.0    +      -       +      +
    504A  PEG      2.9    20.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 151 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116A  ARG*     2.9    28.2    +      -       -      -
    147A  MET      2.8    22.1    +      -       -      +
    148A  THR*     3.5     7.0    -      -       -      +
    150A  GLU*     1.3    72.0    -      -       -      +
    152A  HIS*     1.3    64.6    +      -       +      +
    153A  TYR      3.4     2.4    -      -       -      +
    504A  PEG      3.1    44.0    +      -       -      +
    514A  EDO      5.3     0.2    -      -       -      +
    346C  ARG*     3.0    26.4    +      -       -      +
    350C  ARG*     2.8    29.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  THR      2.9    23.7    +      -       -      -
    149A  LEU      3.0     6.2    +      -       -      +
    151A  ASP*     1.3    80.3    -      -       +      +
    153A  TYR*     1.3    60.2    +      -       -      +
    154A  HIS*     3.6     4.6    -      -       -      -
    202A  VAL*     3.6    20.4    -      -       +      -
    203A  ASP*     2.9    35.6    +      -       +      +
    236A  VAL*     4.6     8.2    -      -       +      +
    240A  LEU*     3.5    31.6    -      -       +      +
    514A  EDO      3.1    41.8    -      -       -      -
----------------------------------------------------------
 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