Contacts of the helix formed by residues 19 - 36 (chain C) in PDB entry 1Y8Q


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 TYR 19 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ILE*     5.0     3.6    -      -       +      -
     15C  GLU*     3.0    46.7    +      -       +      +
     18C  GLN*     1.3    94.0    -      -       +      +
     20C  ASP*     1.3    65.5    +      -       -      +
     21C  ARG      3.3     2.9    -      -       -      -
     22C  GLN*     3.0    29.7    +      -       +      +
     23C  ILE*     2.9    38.9    +      -       +      +
     31C  GLN*     3.8    19.3    -      -       +      -
     35C  ARG*     5.6     5.2    -      -       +      -
     57C  LEU      3.7    20.9    -      -       -      -
     58C  ALA      3.7     5.8    -      -       -      -
     59C  GLY*     3.3    15.5    -      -       -      -
    103C  ASN*     3.1    21.2    +      -       -      -
    105C  MET*     4.0    12.8    -      -       -      +
    106C  VAL*     4.9     0.2    -      -       -      +
     58D  ASN*     4.4     4.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 20 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  ALA      3.1    19.9    +      -       -      +
     17C  ALA*     3.6    12.8    -      -       -      +
     18C  GLN      3.3     1.4    -      -       -      -
     19C  TYR*     1.3    77.8    -      -       -      +
     21C  ARG*     1.3    91.8    +      -       -      +
     23C  ILE*     3.3     6.9    +      -       -      +
     24C  ARG*     2.6    67.2    +      -       -      +
     55D  SER*     4.6     2.2    -      -       -      -
    374D  PHE*     4.3     7.4    -      -       -      -
    377D  LYS*     3.4    12.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 21 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  GLN      4.9     1.4    +      -       -      -
     19C  TYR      3.1     1.2    +      -       -      -
     20C  ASP*     1.3   110.4    +      -       -      +
     22C  GLN*     1.3    58.2    +      -       -      +
     24C  ARG*     3.8     6.6    +      -       -      +
     55D  SER*     3.6    24.8    +      -       -      +
     58D  ASN*     4.2     3.4    -      -       -      +
     59D  ARG*     3.6    31.0    -      -       -      +
    346D  LYS*     3.4    11.7    -      -       -      +
    347D  ASP*     3.2    22.2    +      -       -      -
    377D  LYS*     5.0     4.2    -      -       -      +
    383D  ILE*     3.6    32.5    -      -       -      +
    384D  ILE      4.2     7.0    -      -       -      -
    385D  PRO*     3.4    11.8    -      -       -      +
    386D  ALA      3.1    34.0    +      -       -      +
    801D  ATP      2.7    40.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 22 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19C  TYR*     3.0    26.9    +      -       -      +
     21C  ARG*     1.3    75.5    -      -       -      +
     23C  ILE*     1.3    60.8    +      -       -      +
     24C  ARG      3.0     1.8    -      -       -      -
     25C  LEU*     2.8    19.5    +      -       -      +
     26C  TRP*     3.0    34.4    +      -       +      -
     31C  GLN*     2.9    24.7    +      -       -      +
     58C  ALA*     2.8    36.9    +      -       -      +
     58D  ASN*     2.9    30.8    +      -       -      +
    386D  ALA      3.6     5.6    +      -       -      +
    387D  ILE*     3.6    26.1    -      -       +      +
    388D  ALA      5.2     0.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 23 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ILE*     4.2    22.0    -      -       +      -
     16C  ALA*     4.1    12.6    -      -       -      +
     19C  TYR*     2.9    40.8    +      -       +      +
     20C  ASP*     3.8     5.8    -      -       -      +
     22C  GLN*     1.3    76.0    -      -       -      +
     24C  ARG*     1.3    59.9    +      -       -      +
     26C  TRP*     4.6     1.1    -      -       -      -
     27C  GLY*     2.8    30.7    +      -       -      +
     28C  LEU*     4.0    19.7    -      -       +      +
     31C  GLN*     4.2    19.3    -      -       +      +
    307D  LEU*     4.4    16.8    -      -       +      -
    310D  GLN*     5.1     3.4    -      -       -      +
    374D  PHE*     4.1    22.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 24 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  ASP*     2.6    49.2    +      -       -      +
     21C  ARG*     3.8     8.3    -      -       -      +
     22C  GLN      3.0     0.4    -      -       -      -
     23C  ILE*     1.3    78.0    -      -       -      +
     25C  LEU*     1.3    57.5    +      -       -      +
    374D  PHE*     2.9    57.6    +      -       +      +
    377D  LYS*     3.2    31.5    -      -       -      +
    378D  SER*     2.8    34.3    +      -       -      +
    383D  ILE*     3.7    27.2    -      -       -      +
    385D  PRO*     3.4    21.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 25 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21C  ARG      4.4     0.2    -      -       -      +
     22C  GLN*     2.8    16.5    +      -       -      +
     24C  ARG*     1.3    81.5    -      -       -      +
     26C  TRP*     1.3    62.7    +      -       +      +
     27C  GLY      3.7     0.4    -      -       -      -
    321C  ARG*     4.1    11.4    +      -       -      -
    143D  GLY*     3.7    27.8    -      -       -      -
    144D  TYR*     3.5    43.6    -      -       +      -
    385D  PRO*     3.7    17.4    -      -       +      +
    386D  ALA      5.4     0.2    -      -       -      -
    387D  ILE*     3.7    31.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 26 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     22C  GLN*     3.0    41.2    +      -       +      -
     23C  ILE*     4.6     0.2    -      -       -      -
     25C  LEU*     1.3    85.6    -      -       +      +
     27C  GLY*     1.3    75.2    +      -       -      +
     30C  ALA*     3.3    29.7    +      -       +      +
     31C  GLN*     2.8    26.4    -      -       -      +
     34C  LEU*     4.2    13.5    -      -       +      -
     58C  ALA*     4.9     5.8    -      -       +      -
    312C  GLN*     6.5     0.2    -      -       +      -
    315C  VAL*     3.8    25.1    -      -       +      -
    319C  SER*     5.7     3.6    -      -       -      -
    321C  ARG*     3.4    37.3    +      -       +      +
    322C  ASP*     5.4     0.4    -      -       -      +
    144D  TYR*     3.3    32.3    -      +       +      +
    387D  ILE*     3.8    33.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 27 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  ILE*     2.8    24.9    +      -       -      -
     25C  LEU      3.7     1.0    -      -       -      -
     26C  TRP*     1.3    86.0    -      -       -      +
     28C  LEU*     1.3    65.4    +      -       -      -
     29C  GLU      3.4     2.4    +      -       -      -
     31C  GLN*     3.2    18.0    +      -       -      +
    321C  ARG*     5.4     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 28 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  GLY*     3.8    27.1    -      -       -      +
     11C  ILE*     4.2    24.2    -      -       +      -
     23C  ILE*     4.0    11.3    -      -       +      +
     27C  GLY*     1.3    71.1    -      -       -      -
     29C  GLU*     1.3    59.9    +      -       +      +
     31C  GLN*     3.1     9.0    +      -       +      +
     32C  LYS*     2.8    57.8    +      -       +      +
    305D  LEU      5.0     0.4    -      -       -      +
    306D  GLY*     3.8    18.4    -      -       -      -
    307D  LEU*     3.8    26.7    -      -       +      +
    310D  GLN*     4.0    10.3    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 29 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  GLY      3.4     0.6    -      -       -      -
     28C  LEU*     1.3    78.2    -      -       +      +
     30C  ALA*     1.3    64.2    +      -       -      +
     32C  LYS*     3.1    20.4    +      -       -      +
     33C  ARG*     2.9    57.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 30 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  TRP*     3.3    38.0    +      -       +      +
     27C  GLY      3.5     1.2    +      -       -      -
     28C  LEU      3.3     0.4    -      -       -      -
     29C  GLU*     1.3    77.9    -      -       -      +
     31C  GLN*     1.3    63.2    +      -       -      +
     33C  ARG*     3.2    11.5    +      -       -      +
     34C  LEU*     3.0    24.7    +      -       -      +
    319C  SER*     3.6    25.4    -      -       -      -
    321C  ARG*     3.9    15.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 31 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11C  ILE*     5.3     7.4    -      -       +      -
     19C  TYR*     3.8    26.2    -      -       +      -
     22C  GLN*     2.9    25.7    +      -       -      +
     23C  ILE*     4.2    17.0    -      -       +      +
     26C  TRP*     2.8    33.3    -      -       -      +
     27C  GLY      3.2    11.5    +      -       -      +
     28C  LEU*     3.1    16.9    +      -       +      +
     30C  ALA*     1.3    80.4    -      -       -      +
     32C  LYS*     1.3    56.6    +      -       -      +
     34C  LEU*     3.4     8.7    +      -       -      +
     35C  ARG*     2.9    29.0    +      -       +      +
     58C  ALA      3.0    21.5    -      -       -      +
     59C  GLY      4.3     4.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 32 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9C  GLY      3.0    16.2    -      -       -      +
     10C  GLY*     2.7    41.4    -      -       -      +
     11C  ILE*     4.2    10.8    -      -       +      +
     28C  LEU*     2.8    46.2    +      -       +      +
     29C  GLU*     3.6    23.7    +      -       -      +
     31C  GLN*     1.3    71.8    -      -       -      +
     33C  ARG*     1.3    65.8    +      -       -      +
     35C  ARG*     3.2    21.6    +      -       -      +
     36C  ALA*     3.2    14.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 33 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29C  GLU*     2.9    43.9    +      -       -      +
     30C  ALA*     3.3    32.0    -      -       -      +
     32C  LYS*     1.3    74.1    -      -       -      +
     34C  LEU*     1.3    61.5    +      -       -      +
     36C  ALA*     3.0    16.3    +      -       -      +
     37C  SER*     3.0    18.5    +      -       -      -
    175C  VAL*     5.2    10.1    -      -       -      +
    318C  LEU      3.9    14.3    -      -       -      +
    319C  SER*     3.1    29.0    +      -       -      -
    320C  GLN*     4.3    22.0    +      -       -      +
    321C  ARG*     4.9     5.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 34 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26C  TRP*     4.2    13.2    -      -       +      -
     30C  ALA      3.0    17.1    +      -       -      +
     31C  GLN*     3.5     9.2    -      -       -      +
     33C  ARG*     1.3    77.6    -      -       -      +
     35C  ARG*     1.3    56.4    +      -       -      +
     37C  SER*     3.1    22.0    +      -       -      -
     58C  ALA*     3.6    33.0    -      -       +      +
     59C  GLY      3.8     2.0    -      -       -      +
     60C  VAL*     3.3    28.8    -      -       +      -
    315C  VAL*     3.7    47.1    -      -       +      +
    318C  LEU*     3.8    28.0    +      -       +      -
    319C  SER*     4.7     2.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 35 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  GLY*     3.8    20.4    +      -       -      -
     11C  ILE*     3.5    28.9    -      -       -      +
     12C  SER      4.8     0.6    -      -       -      +
     15C  GLU*     3.0    38.5    +      -       -      +
     19C  TYR*     5.6     6.3    -      -       +      -
     31C  GLN*     2.9    20.8    +      -       -      +
     32C  LYS*     3.2    14.4    +      -       -      +
     34C  LEU*     1.3    74.1    -      -       -      +
     36C  ALA*     1.3    58.2    +      -       -      +
     37C  SER      3.5     0.2    -      -       -      -
     59C  GLY      3.4    16.1    +      -       -      +
     60C  VAL      5.9     0.2    -      -       -      +
     61C  LYS*     3.1    24.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 36 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32C  LYS      3.2     9.3    +      -       -      +
     33C  ARG*     3.0    12.1    +      -       -      +
     35C  ARG*     1.3    77.8    -      -       -      +
     37C  SER*     1.3    60.8    +      -       -      +
     38C  ARG*     4.0     1.2    +      -       -      +
     61C  LYS*     3.8    16.9    -      -       -      +
    127C  ASP*     3.8     6.6    -      -       -      +
----------------------------------------------------------
 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