Contacts of the helix formed by residues 151 - 165 (chain C) in PDB entry 1V8C


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 GLU 151 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  TYR*     4.8    10.1    +      -       -      -
   1001A  EDO      3.9    21.9    -      -       -      +
    121C  PRO      3.9    10.8    -      -       -      +
    122C  GLY*     2.8    22.4    +      -       -      +
    150C  GLU*     1.3    86.4    -      -       +      +
    152C  ALA*     1.3    63.1    +      -       -      +
    153C  GLU*     3.3     3.7    +      -       -      -
    154C  ARG*     3.4    22.0    +      -       -      +
    155C  TRP*     3.1    38.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 152 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87C  GLY      4.1     4.3    -      -       -      +
     89C  PHE*     3.9    14.4    -      -       +      -
    122C  GLY      4.1     0.4    +      -       -      -
    123C  ALA*     4.4     1.3    -      -       -      -
    147C  VAL*     3.5    38.1    -      -       -      +
    148C  GLU*     3.8    10.5    -      -       -      -
    149C  GLY      3.0    19.0    +      -       -      +
    150C  GLU      3.4     1.0    +      -       -      -
    151C  GLU*     1.3    77.4    -      -       -      +
    153C  GLU*     1.3    57.0    +      -       -      +
    156C  PHE*     2.8    34.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 153 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54C  SER*     2.9    34.7    +      -       -      -
     56C  PHE*     3.6     9.1    -      -       +      -
     81C  PHE*     3.3    46.3    -      -       +      +
     82C  PRO      4.7     2.1    -      -       -      +
     85C  ALA*     3.7    11.8    -      -       -      +
     89C  PHE*     3.5    19.3    -      -       +      -
    150C  GLU      5.1     1.5    +      -       -      +
    151C  GLU*     3.3     1.0    -      -       -      +
    152C  ALA*     1.3    79.7    -      -       -      +
    154C  ARG*     1.3    68.0    +      -       +      +
    156C  PHE*     3.6     2.1    -      -       -      +
    157C  GLU*     3.0    28.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 154 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  TYR*     3.5    44.3    +      -       -      +
   1001A  EDO      3.4    26.5    +      -       -      +
     54C  SER*     4.6    10.4    +      -       -      -
     56C  PHE*     3.9    21.5    -      -       +      -
     61C  ASP*     3.0    32.1    +      -       -      +
     63C  ARG*     6.1     1.0    -      -       -      +
     64C  TYR*     4.5    10.6    +      -       -      -
    151C  GLU*     3.4    18.8    +      -       -      +
    152C  ALA      3.4     0.2    -      -       -      -
    153C  GLU*     1.3    84.9    -      -       +      +
    155C  TRP*     1.3    57.9    +      -       -      +
    157C  GLU*     3.3     6.6    +      -       -      +
    158C  ARG*     2.9    28.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 155 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   1001A  EDO      3.6    23.4    -      -       -      -
    108C  TRP*     3.6    35.2    -      +       +      -
    120C  LEU*     3.5    29.5    -      -       +      +
    121C  PRO*     2.8    42.2    +      -       +      -
    123C  ALA*     3.6    17.9    -      -       +      -
    125C  VAL*     5.2     1.3    -      -       +      -
    147C  VAL*     4.1    13.9    -      -       +      -
    151C  GLU*     3.1    27.3    +      -       +      +
    152C  ALA      4.1     1.6    -      -       -      +
    154C  ARG*     1.3    73.9    -      -       -      +
    156C  PHE*     1.3    66.2    +      -       -      +
    158C  ARG*     3.2    49.5    +      -       -      +
    159C  ILE*     3.0    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 156 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      6C  TYR*     3.6    27.6    -      +       -      -
     81C  PHE*     4.3     7.9    -      +       -      -
     89C  PHE*     3.8    26.2    -      +       +      -
     90C  GLU*     3.7    26.2    -      -       -      -
     91C  ARG*     3.7    35.7    -      -       +      -
     93C  PHE*     4.8     9.1    -      +       -      -
    145C  VAL*     4.6     5.6    -      -       +      -
    147C  VAL*     4.0    21.2    -      -       +      +
    152C  ALA      2.8    21.5    +      -       -      +
    153C  GLU*     3.6     2.5    -      -       -      +
    155C  TRP*     1.3    75.9    -      -       -      +
    157C  GLU*     1.3    78.5    +      -       -      +
    159C  ILE*     3.2     7.6    +      -       +      +
    160C  ALA*     3.0    24.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 157 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56C  PHE*     3.1    62.2    -      -       +      +
     59C  GLY*     3.3    28.5    +      -       -      +
     79C  ASP*     2.5    30.4    -      -       -      +
     81C  PHE*     3.3    19.1    -      -       +      -
    153C  GLU      3.0    21.0    +      -       -      +
    154C  ARG      3.7     3.1    -      -       -      +
    156C  PHE*     1.3    82.8    -      -       -      +
    158C  ARG*     1.3    59.4    +      -       -      +
    160C  ALA*     3.1     5.1    +      -       -      +
    161C  PHE*     2.9    23.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 158 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  ARG*     3.1    30.5    +      -       -      +
     65A  LEU      4.0     5.7    +      -       -      +
     66A  GLN*     3.5    32.6    +      -       +      +
     67A  GLY*     3.5    18.4    -      -       -      +
   1001A  EDO      4.1     4.9    +      -       -      -
   1002A   CL      3.2    27.3    -      -       -      +
     59C  GLY      4.4     2.7    +      -       -      -
    108C  TRP*     3.3    47.7    -      -       +      -
    154C  ARG      2.9    17.5    +      -       -      +
    155C  TRP*     3.2    33.5    +      -       -      +
    157C  GLU*     1.3    75.7    -      -       -      +
    159C  ILE*     1.3    57.2    +      -       -      +
    161C  PHE*     3.2     9.7    +      -       +      +
    162C  ALA*     2.9    26.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 159 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93C  PHE*     4.1    17.5    -      -       +      -
     96C  PHE*     3.9    23.5    -      -       +      -
    101C  LEU*     4.1    13.2    -      -       +      -
    105C  LEU*     4.5     3.1    -      -       +      -
    108C  TRP*     3.8    21.5    -      -       +      -
    120C  LEU*     5.7     0.4    -      -       +      -
    125C  VAL*     3.9    33.7    -      -       +      -
    145C  VAL*     4.0    14.8    -      -       +      -
    147C  VAL*     4.1    10.8    -      -       +      -
    155C  TRP*     3.0    19.2    +      -       +      +
    156C  PHE*     3.5     8.3    -      -       +      +
    158C  ARG*     1.3    74.9    -      -       -      +
    160C  ALA*     1.3    64.0    +      -       -      +
    162C  ALA*     3.1     3.9    +      -       -      +
    163C  ALA*     2.9    21.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 160 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  GLU      4.7     3.1    -      -       -      -
     59C  GLY*     4.4     9.4    -      -       -      +
     79C  ASP*     5.0     0.4    -      -       -      +
     91C  ARG*     3.9    25.1    -      -       -      +
     93C  PHE*     4.0    16.9    -      -       +      -
    156C  PHE*     3.0    13.7    +      -       +      +
    157C  GLU*     3.1    17.7    +      -       -      +
    159C  ILE*     1.3    76.6    -      -       -      +
    161C  PHE*     1.3    63.2    +      -       -      +
    163C  ALA*     3.4     2.9    +      -       -      +
    164C  SER*     3.1    23.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 161 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66A  GLN*     3.5    31.9    -      -       +      -
     69A  SER*     4.0    19.3    -      -       -      -
     71A  PRO*     3.7    28.5    -      -       +      -
     58C  GLU      3.6    16.8    -      -       -      +
     59C  GLY*     4.1     6.4    -      -       -      +
     60C  ARG*     3.9    26.2    -      -       +      -
    104C  TYR*     5.6     1.8    -      +       -      -
    108C  TRP*     5.7     0.7    -      +       -      -
    157C  GLU      2.9    12.5    +      -       -      +
    158C  ARG*     3.3    15.0    -      -       +      +
    159C  ILE      3.2     0.2    -      -       -      -
    160C  ALA*     1.3    76.9    -      -       -      +
    162C  ALA*     1.3    68.8    +      -       +      +
    164C  SER*     2.6    22.8    +      -       -      -
    165C  ARG*     3.2    45.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 162 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96C  PHE*     4.1     9.9    -      -       +      -
    100C  LEU*     5.7     1.7    -      -       -      +
    104C  TYR*     3.7    47.3    +      -       +      -
    108C  TRP*     4.2     7.6    -      -       +      -
    158C  ARG      2.9    14.0    +      -       -      +
    159C  ILE      3.1     8.3    +      -       -      +
    161C  PHE*     1.3    83.6    -      -       +      +
    163C  ALA*     1.3    62.3    +      -       -      +
    165C  ARG*     3.1    22.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 163 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93C  PHE*     3.5    32.1    -      -       +      -
     96C  PHE*     3.7    32.0    -      -       +      +
    159C  ILE      2.9    14.9    +      -       -      +
    160C  ALA      3.7     3.6    -      -       -      +
    162C  ALA*     1.3    76.9    -      -       -      +
    164C  SER*     1.3    62.6    +      -       -      +
    165C  ARG      3.2     5.0    +      -       -      -
     23D  ALA*     5.4     0.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 164 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  GLU*     4.2    27.5    +      -       -      +
    160C  ALA      3.1    12.6    +      -       -      -
    161C  PHE*     2.6    25.9    +      -       -      -
    163C  ALA*     1.3    75.5    -      -       -      +
    165C  ARG*     1.3    64.1    +      -       -      +
     23D  ALA*     3.5    15.3    -      -       -      +
     72D  LEU      4.6     7.1    -      -       -      +
     74D  PRO*     4.4    21.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 165 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24A  THR*     5.2     7.9    -      -       -      +
     69A  SER      5.2     0.6    +      -       -      -
     71A  PRO*     3.3    36.4    -      -       -      +
    104C  TYR*     4.0    14.3    +      -       -      +
    161C  PHE*     3.2    45.3    -      -       +      +
    162C  ALA*     3.3    14.1    -      -       -      +
    163C  ALA      3.1     6.0    -      -       -      -
    164C  SER*     1.3    84.5    -      -       -      +
     23D  ALA*     3.4    21.8    -      -       -      +
     24D  THR*     6.0     0.3    -      -       -      +
     27D  GLU*     5.2     3.6    -      -       -      +
----------------------------------------------------------
 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