Contacts of the helix formed by residues 59 - 70 (chain C) in PDB entry 1Y1V


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 ALA 59 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    786B  ASN*     6.2     0.2    -      -       -      +
    854B  LEU*     5.1    13.8    -      -       +      +
    856B  PHE*     6.0     2.0    -      -       +      -
    950B  ASP*     5.0     2.7    -      -       -      +
    969B  ARG*     3.8    24.9    -      -       +      +
     54C  ASN*     4.6     1.6    -      -       -      +
     57C  VAL      3.5     3.2    +      -       -      +
     58C  LEU*     1.3    73.5    -      -       -      +
     60C  ASP*     1.3    58.7    +      -       -      +
     61C  GLU*     3.5    13.9    -      -       -      +
     62C  PHE*     2.7    46.6    +      -       +      +
     63C  ILE*     3.2     3.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 60 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    948B  ILE*     6.0     0.2    -      -       -      -
    969B  ARG*     3.2    20.4    +      -       -      -
     51C  VAL*     3.7    19.5    -      -       +      +
     54C  ASN*     3.2    22.5    +      -       -      +
     59C  ALA*     1.3    67.4    -      -       -      +
     61C  GLU*     1.3    58.5    +      -       -      +
     63C  ILE*     2.8    14.9    +      -       -      +
     64C  ALA*     2.7    32.7    +      -       -      +
     60L  ARG*     2.4    39.0    +      -       -      -
     67L  PHE*     3.2    27.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 61 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797B  TYR*     3.4     8.3    -      -       -      +
    854B  LEU*     5.0     1.6    -      -       -      -
    948B  ILE*     4.1     5.9    -      -       +      +
    969B  ARG*     3.0    49.1    +      -       -      -
    970B  THR*     4.6     0.7    -      -       -      -
    971B  THR*     3.1    30.5    +      -       +      +
     59C  ALA*     3.5     4.5    -      -       -      -
     60C  ASP*     1.3    86.7    +      -       -      +
     62C  PHE*     1.3    57.8    +      -       +      +
     64C  ALA*     3.1    13.1    -      -       +      +
     65C  HIS*     2.6    35.7    +      -       -      +
     67L  PHE*     3.5    18.2    -      -       +      -
     68L  GLU*     4.8    11.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 62 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797B  TYR*     4.1    38.6    -      +       +      -
    798B  TYR*     3.2    47.1    -      +       -      -
    854B  LEU*     5.2     8.7    -      -       +      -
     58C  LEU*     3.3    32.1    -      -       +      -
     59C  ALA*     2.7    33.1    +      -       +      +
     61C  GLU*     1.3    81.3    -      -       +      +
     63C  ILE*     1.3    56.2    +      -       -      +
     65C  HIS*     3.1     4.3    -      +       -      +
     66C  ARG*     2.9    37.8    +      -       +      +
      1J  MET*     3.7    33.0    -      -       -      -
      2J  ILE*     4.9     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 63 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54C  ASN*     4.0    18.2    -      -       +      +
     56C  THR*     4.0     8.7    -      -       -      +
     58C  LEU*     3.9    38.4    -      -       +      +
     59C  ALA      4.1     6.7    -      -       -      +
     60C  ASP*     2.8    10.7    +      -       -      +
     62C  PHE*     1.3    69.9    -      -       -      +
     64C  ALA*     1.3    71.6    +      -       -      +
     66C  ARG*     2.7    22.7    +      -       +      +
     67C  LEU*     2.9    37.2    +      -       +      +
    144C  ILE*     4.2    13.9    -      -       +      +
    145C  CYS*     5.1     7.4    -      -       +      -
    153C  LEU*     4.5    17.3    -      -       +      -
    155C  LEU*     4.1    13.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 64 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  VAL*     4.3    19.2    -      -       +      +
     60C  ASP      2.7    11.4    +      -       -      +
     61C  GLU*     3.1    24.0    -      -       -      +
     63C  ILE*     1.3    76.1    -      -       -      +
     65C  HIS*     1.3    63.6    +      -       -      +
     67C  LEU*     3.1    26.5    +      -       -      +
     68C  GLY*     3.2     4.5    +      -       -      -
    155C  LEU*     5.5     0.4    -      -       -      +
     67L  PHE*     4.1    14.6    -      -       +      -
     68L  GLU      3.9    19.5    -      -       -      +
     69L  ALA*     4.6     3.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 65 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    797B  TYR*     4.6    12.3    -      +       +      -
    798B  TYR*     4.1    19.4    +      +       -      -
    847B  ASP      3.0    27.8    -      -       -      -
    848B  ARG      4.0     3.2    +      -       -      -
    849B  GLY*     3.5    20.1    +      -       -      -
    852B  ARG*     3.4    32.7    +      -       -      +
     61C  GLU      2.6    15.5    +      -       -      +
     62C  PHE*     3.1    12.6    -      -       -      +
     64C  ALA*     1.3    73.4    -      -       -      +
     66C  ARG*     1.3    66.7    +      -       -      +
     68C  GLY*     3.0     9.5    +      -       -      -
     69C  LEU*     2.8    40.8    -      -       +      +
    167C  HIS*     5.3     0.9    -      -       -      -
     68L  GLU      4.7     0.6    +      -       -      -
     69L  ALA      4.1     3.2    +      -       -      +
     70L  ARG*     4.0    17.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 66 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    798B  TYR*     3.2    14.0    +      -       -      +
     58C  LEU*     4.9     4.3    -      -       -      -
     62C  PHE*     2.9    36.8    -      -       +      +
     63C  ILE*     2.7    21.7    +      -       -      +
     65C  HIS*     1.3    73.8    -      -       -      +
     67C  LEU*     1.3    68.3    +      -       +      +
     69C  LEU*     3.0    25.4    +      -       -      +
     70C  ILE*     3.3     8.8    +      -       +      +
    143C  LEU      3.3    22.4    +      -       -      -
    144C  ILE*     3.3    23.1    +      -       +      +
      2J  ILE*     3.0    25.2    -      -       -      +
      3J  VAL      2.7    22.6    +      -       -      -
      4J  PRO*     3.6     1.6    -      -       -      +
      5J  VAL*     2.8    43.7    -      -       +      +
     15J  GLY*     5.5     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 67 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46C  ILE*     3.9    26.1    -      -       +      +
     49C  VAL*     3.9     8.5    -      -       +      -
     63C  ILE*     2.9    16.5    +      -       +      +
     64C  ALA*     3.2     7.2    -      -       -      +
     66C  ARG*     1.3    71.1    -      -       -      +
     68C  GLY*     1.3    70.5    +      -       -      +
     70C  ILE*     2.8    45.1    +      -       +      +
    101C  LEU*     4.8     4.9    -      -       +      -
    118C  LEU*     5.6     1.8    -      -       +      -
    144C  ILE*     3.4    31.6    -      -       +      -
    155C  LEU*     3.1    36.1    -      -       +      -
    157C  CYS*     3.7    15.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 68 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  ALA*     3.6    22.9    -      -       -      +
     46C  ILE*     3.5    24.9    +      -       -      +
     64C  ALA      3.2     4.0    +      -       -      -
     65C  HIS      3.0    10.0    +      -       -      -
     67C  LEU*     1.3    78.7    -      -       -      +
     69C  LEU*     1.3    63.4    +      -       -      +
     70C  ILE      3.6     2.1    -      -       -      +
    169C  LYS*     3.9    11.2    -      -       -      +
     69L  ALA*     3.9    13.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 69 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    798B  TYR*     6.0     1.6    -      -       +      +
    847B  ASP      4.9     0.9    -      -       -      +
    848B  ARG*     4.1    27.6    -      -       +      +
     65C  HIS*     2.8    54.7    -      -       +      +
     66C  ARG*     3.0     8.0    +      -       -      +
     68C  GLY*     1.3    74.7    -      -       -      +
     70C  ILE*     1.3    66.6    +      -       -      +
     71C  PRO*     2.8     7.8    -      -       -      +
    167C  HIS*     5.3     2.2    -      -       -      +
    169C  LYS*     4.1    20.2    -      -       +      +
      5J  VAL*     3.4    42.4    -      -       +      +
      6J  ARG*     3.0    32.0    +      -       +      +
     69L  ALA      5.2     1.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 70 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  ALA*     4.8     1.9    -      -       -      +
     46C  ILE*     4.8     1.3    -      -       +      -
     66C  ARG      3.3     4.9    +      -       -      +
     67C  LEU*     2.8    47.6    +      -       +      +
     68C  GLY      3.6     6.2    -      -       -      +
     69C  LEU*     1.3    69.3    -      -       -      +
     71C  PRO*     1.3    84.5    -      -       +      +
     72C  LEU*     3.2    16.5    +      -       +      +
    115C  SER*     3.5    24.9    -      -       -      +
    118C  LEU*     4.5    15.9    -      -       +      -
    132C  PRO*     4.8     3.6    -      -       +      -
    133C  ILE      5.8     0.2    -      -       -      +
    142C  VAL*     4.1    16.2    -      -       +      -
    144C  ILE*     3.2    33.9    -      -       +      -
      5J  VAL*     4.2     3.5    -      -       +      +
----------------------------------------------------------
 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