Contacts of the helix formed by residues 151 - 165 (chain A) in PDB entry 1OFV


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 151 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124A  GLY*     4.8     4.7    -      -       -      +
    148A  GLN*     3.1    34.5    +      -       +      +
    149A  PRO      3.1     1.0    -      -       -      -
    150A  ASP*     1.3    86.9    -      -       +      +
    152A  THR*     1.3    66.4    -      -       -      +
    153A  LYS      3.4     1.7    +      -       -      -
    154A  ASN*     3.5    10.3    +      -       +      +
    155A  ARG*     3.1    59.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 152 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  ILE*     5.1     4.3    -      -       +      -
    143A  ILE*     3.7    30.9    -      -       +      +
    144A  ASP      4.6     0.5    +      -       -      -
    145A  GLU*     2.3    34.3    +      -       -      +
    148A  GLN      3.7     7.9    +      -       -      -
    149A  PRO      3.3     9.2    +      -       -      -
    151A  LEU*     1.3    78.1    -      -       -      +
    153A  LYS*     1.3    67.0    +      -       -      +
    155A  ARG*     3.0     4.4    +      -       -      +
    156A  ILE*     2.9    45.2    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 153 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    149A  PRO      4.7     1.4    +      -       -      -
    150A  ASP      5.0     3.5    +      -       -      +
    151A  LEU      3.4     0.8    -      -       -      -
    152A  THR*     1.3    80.9    -      -       -      +
    154A  ASN*     1.3    59.8    +      -       +      +
    156A  ILE*     3.3     6.6    +      -       -      +
    157A  LYS*     3.0    64.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 154 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  TRP*     6.1     0.2    -      -       -      -
    150A  ASP      5.5     1.7    +      -       -      +
    151A  LEU*     3.5    10.9    +      -       +      +
    152A  THR      3.2     0.2    -      -       -      -
    153A  LYS*     1.3    81.7    -      -       +      +
    155A  ARG*     1.3    64.5    +      -       +      +
    157A  LYS*     3.8     8.9    -      -       -      +
    158A  THR*     2.9    49.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 155 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  TRP*     3.7    28.6    -      -       +      +
    123A  GLU      5.0     1.0    +      -       -      -
    124A  GLY*     4.2     4.2    +      -       -      -
    125A  TYR*     3.1    45.7    +      -       -      -
    141A  LEU*     4.0     5.1    -      -       +      +
    142A  ALA      4.0     4.0    +      -       -      -
    143A  ILE*     4.0    19.5    -      -       +      +
    144A  ASP      4.1    11.3    -      -       -      +
    148A  GLN*     2.9    45.0    +      -       -      +
    151A  LEU*     3.1    41.9    +      -       +      +
    152A  THR*     3.0     7.6    +      -       -      +
    154A  ASN*     1.3    81.9    -      -       +      +
    156A  ILE*     1.3    63.6    +      -       -      +
    159A  TRP*     3.0    27.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 156 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  ILE*     4.1    20.4    -      -       +      -
     20A  SER*     3.8    23.6    -      -       -      +
     21A  ILE*     4.1    23.8    -      -       +      +
     24A  GLU*     3.8    22.0    -      -       +      -
    141A  LEU*     3.9    22.0    -      -       +      -
    143A  ILE*     4.4     3.1    -      -       +      -
    152A  THR*     2.9    39.3    +      -       +      +
    153A  LYS*     3.7     9.0    -      -       -      +
    155A  ARG*     1.3    74.5    -      -       -      +
    157A  LYS*     1.3    62.7    +      -       -      +
    159A  TRP*     3.2     1.7    +      -       -      +
    160A  VAL*     2.8    32.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 157 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLU*     3.6    42.4    +      -       +      +
    153A  LYS*     3.0    56.7    +      -       +      +
    154A  ASN*     4.0     9.6    -      -       -      +
    156A  ILE*     1.3    75.5    -      -       +      +
    158A  THR*     1.3    62.8    +      -       -      +
    160A  VAL*     4.1     1.2    -      -       -      +
    161A  SER*     3.1    23.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 158 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120A  TRP*     3.8    20.0    -      -       +      -
    154A  ASN*     2.9    37.6    +      -       -      -
    157A  LYS*     1.3    73.3    -      -       -      +
    159A  TRP*     1.3    64.4    +      -       -      +
    161A  SER*     3.2     8.0    +      -       -      -
    162A  GLN*     3.0    47.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 159 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ILE*     3.7    30.3    -      -       +      -
     51A  ILE*     4.0    17.0    -      -       +      -
     84A  ALA*     3.9    11.7    -      -       +      -
     85A  TYR      3.2    28.5    -      -       -      -
     86A  PHE*     4.3     1.8    -      -       +      -
    118A  GLY*     2.8    32.5    +      -       -      -
    119A  TYR      4.8     0.9    -      -       -      -
    120A  TRP*     3.7    28.0    -      +       +      -
    141A  LEU*     3.7    32.7    -      -       +      +
    155A  ARG      3.0    19.2    +      -       -      +
    156A  ILE      3.6     1.6    -      -       -      +
    158A  THR*     1.3    76.2    -      -       -      +
    160A  VAL*     1.3    76.6    +      -       +      +
    162A  GLN*     3.1    10.3    +      -       +      +
    163A  LEU*     2.9    51.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 160 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21A  ILE*     4.0    18.4    -      -       +      -
     24A  GLU*     3.8    38.4    -      -       +      +
     25A  PHE*     3.8    40.2    -      -       +      -
    156A  ILE*     2.8    24.3    +      -       +      +
    157A  LYS      4.1     2.2    -      -       -      +
    159A  TRP*     1.3    80.5    -      -       +      +
    161A  SER*     1.3    65.3    +      -       -      +
    163A  LEU*     2.9     7.3    +      -       -      +
    164A  LYS*     2.9    31.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 161 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    157A  LYS      3.1    13.8    +      -       -      -
    158A  THR*     3.4    11.2    -      -       -      -
    159A  TRP      3.1     0.2    -      -       -      -
    160A  VAL*     1.3    80.1    -      -       -      +
    162A  GLN*     1.3    60.3    +      -       -      +
    164A  LYS*     3.6    23.1    -      -       -      +
    165A  SER*     3.9     6.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 162 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118A  GLY*     6.2     4.0    -      -       -      -
    119A  TYR      4.5     8.1    -      -       -      +
    120A  TRP*     3.9    19.2    -      -       -      -
    121A  PRO*     5.4     2.3    -      -       -      +
    158A  THR*     3.0    37.7    +      -       -      +
    159A  TRP*     3.6    10.3    -      -       +      +
    161A  SER*     1.3    74.7    -      -       -      +
    163A  LEU*     1.3    65.3    +      -       -      +
    165A  SER*     3.4    17.3    +      -       -      -
    166A  GLU*     4.2     7.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 163 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  PHE*     3.7    26.5    -      -       +      -
     51A  ILE*     4.2     2.5    -      -       +      -
     84A  ALA*     3.9    22.9    -      -       +      -
    117A  VAL*     4.1    18.2    -      -       +      -
    118A  GLY*     4.2    11.9    -      -       -      +
    159A  TRP*     2.9    54.4    +      -       +      +
    160A  VAL      3.3     8.5    -      -       -      +
    162A  GLN*     1.3    78.0    -      -       -      +
    164A  LYS*     1.3    67.3    +      -       -      +
    166A  GLU*     2.9    20.2    +      -       +      +
    167A  PHE*     3.1    25.4    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 164 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  GLU*     3.4    21.7    +      -       -      -
     25A  PHE*     3.8    40.8    +      -       +      +
    160A  VAL*     2.9    22.5    +      -       +      +
    161A  SER*     3.6    16.5    -      -       -      +
    163A  LEU*     1.3    74.4    -      -       -      +
    165A  SER*     1.3    63.0    +      -       -      +
    167A  PHE      3.1     6.9    +      -       -      -
    168A  GLY      3.3     0.2    +      -       -      -
    169A  LEU*     2.9    52.0    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 165 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    161A  SER      3.9     8.1    +      -       -      -
    162A  GLN*     3.4    14.8    +      -       -      -
    164A  LYS*     1.3    75.8    -      -       -      +
    166A  GLU*     1.3    58.4    +      -       -      +
    168A  GLY*     3.2    18.4    +      -       -      -
    169A  LEU*     3.9     8.2    +      -       -      +
----------------------------------------------------------
 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