Contacts of the helix formed by residues 114 - 129 (chain D) in PDB entry 1Y67


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 SER 114 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108D  ILE*     3.8     5.9    -      -       -      +
    109D  ASN*     3.4    14.4    +      -       -      +
    112D  PHE*     3.3     3.7    +      -       -      +
    113D  GLY*     1.3    79.2    -      -       -      +
    115D  PHE*     1.3    57.6    +      -       -      +
    116D  ASP*     3.7     7.9    +      -       -      +
    117D  ALA*     3.1    23.4    +      -       -      +
    118D  PHE*     3.0    28.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 115 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98D  ASN      3.6    22.7    -      -       -      -
     99D  GLN*     3.7    22.2    -      -       +      +
    100D  PRO*     3.4    29.4    -      -       +      -
    105D  LEU*     4.3    15.7    -      -       +      -
    108D  ILE*     3.9    10.3    -      -       +      -
    109D  ASN*     3.7     6.1    +      -       -      -
    114D  SER*     1.3    70.5    -      -       -      +
    116D  ASP*     1.3    68.5    +      -       -      +
    118D  PHE*     3.4    17.1    +      +       -      +
    119D  LYS*     3.0    56.2    +      -       +      +
    195D  TRP*     4.9     1.8    -      +       +      -
    200D  TRP*     3.5    31.4    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 116 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114D  SER*     3.3     8.1    +      -       -      +
    115D  PHE*     1.3    83.1    -      -       -      +
    117D  ALA*     1.3    60.8    +      -       -      +
    119D  LYS*     3.2    26.6    +      -       -      +
    120D  GLN*     3.1    21.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 117 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112D  PHE*     3.3    26.2    -      -       -      +
    113D  GLY      5.0     0.2    -      -       -      -
    114D  SER*     3.1    18.4    +      -       -      +
    116D  ASP*     1.3    73.3    -      -       -      +
    118D  PHE*     1.3    65.8    +      -       -      +
    120D  GLN*     3.4    11.4    +      -       -      +
    121D  LYS*     3.0    23.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 118 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108D  ILE*     3.7    11.7    -      -       +      -
    112D  PHE*     3.7    42.7    -      +       +      +
    114D  SER      3.0    13.6    +      -       -      +
    115D  PHE*     3.5    24.0    -      +       -      +
    116D  ASP      3.3     0.2    -      -       -      -
    117D  ALA*     1.3    77.4    -      -       -      +
    119D  LYS*     1.3    59.4    -      -       -      +
    121D  LYS*     3.2     2.0    +      -       -      +
    122D  PHE*     2.8    46.6    +      +       +      +
    137D  LEU*     3.7    35.4    -      -       +      -
    146D  VAL*     3.9    13.2    -      -       +      -
    170D  LEU*     4.2     7.2    -      -       +      -
    195D  TRP*     3.7    22.4    -      +       -      -
    200D  TRP*     3.8    18.4    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 119 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98D  ASN      5.2     2.2    +      -       -      -
    115D  PHE*     3.0    52.3    +      -       +      +
    116D  ASP*     3.2    28.7    +      -       -      +
    118D  PHE*     1.3    76.8    -      -       +      +
    120D  GLN*     1.3    56.2    +      -       -      +
    122D  PHE*     3.7     1.2    -      -       -      +
    123D  GLU*     2.9    38.0    +      -       -      +
    195D  TRP*     3.6    56.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 120 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116D  ASP      3.1    11.9    +      -       -      +
    117D  ALA*     3.7    11.8    -      -       -      +
    118D  PHE      3.3     0.2    -      -       -      -
    119D  LYS*     1.3    77.1    -      -       -      +
    121D  LYS*     1.3    57.0    +      -       -      +
    123D  GLU*     3.8     5.6    -      -       -      +
    124D  ASP*     2.9    31.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 121 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    112D  PHE*     4.0    24.7    -      -       +      -
    117D  ALA      3.0    17.1    +      -       -      +
    118D  PHE*     3.7     6.7    -      -       -      +
    120D  GLN*     1.3    76.5    -      -       -      +
    122D  PHE*     1.3    62.0    +      -       -      +
    124D  ASP*     3.3     6.4    +      -       +      +
    125D  ALA*     3.1    22.7    +      -       +      +
    145D  ASP*     3.6    20.5    +      -       -      -
    146D  VAL*     4.1    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 122 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118D  PHE*     2.8    37.4    +      +       +      +
    119D  LYS      3.7     3.1    -      -       -      +
    121D  LYS*     1.3    76.5    -      -       -      +
    123D  GLU*     1.3    65.2    +      -       +      +
    125D  ALA*     3.2     5.0    +      -       -      +
    126D  ALA*     3.0    22.2    +      -       +      +
    135D  ALA*     3.7    13.7    -      -       +      +
    136D  TRP*     3.8    32.5    -      -       -      -
    137D  LEU      3.8     3.1    -      -       -      -
    146D  VAL*     3.8    10.9    -      -       +      +
    170D  LEU*     4.3    16.6    -      -       +      -
    171D  GLY      4.3     3.4    -      -       -      -
    172D  VAL*     3.5    43.3    -      -       +      -
    191D  LEU*     5.5     2.2    -      -       +      -
    194D  PHE*     4.3     8.5    -      +       -      -
    195D  TRP*     3.3    31.4    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 123 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119D  LYS*     2.9    22.9    +      -       -      +
    120D  GLN*     3.8     5.4    -      -       -      +
    122D  PHE*     1.3    78.2    -      -       +      +
    124D  ASP*     1.3    51.9    +      -       -      +
    126D  ALA*     3.2     8.0    +      -       -      +
    127D  LYS*     2.7    56.9    +      -       -      +
    188D  PRO*     4.5     4.9    -      -       -      +
    191D  LEU*     3.8    29.6    -      -       +      +
    192D  ALA*     3.8     9.8    +      -       -      +
    195D  TRP*     2.8    37.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 124 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120D  GLN*     2.9    21.4    +      -       +      +
    121D  LYS*     3.7     7.6    -      -       +      +
    122D  PHE      3.2     0.2    -      -       -      -
    123D  GLU*     1.3    73.5    -      -       -      +
    125D  ALA*     1.3    59.3    +      -       -      +
    127D  LYS*     3.8    14.9    +      -       -      +
    128D  THR*     2.9    49.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 125 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121D  LYS      3.1     6.9    +      -       -      +
    122D  PHE      3.5     3.4    -      -       -      +
    124D  ASP*     1.3    77.2    +      -       -      +
    126D  ALA*     1.3    60.6    +      -       -      +
    128D  THR*     3.5     7.4    +      -       -      -
    129D  ARG*     3.3    23.0    +      -       -      +
    135D  ALA*     4.2     9.9    -      -       +      -
    146D  VAL*     3.5    32.8    -      -       +      +
    147D  VAL*     4.5    11.4    -      -       -      +
    148D  SER*     3.9     8.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 126 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122D  PHE*     3.0    13.0    +      -       +      +
    123D  GLU*     3.5     7.9    -      -       -      +
    125D  ALA*     1.3    78.1    -      -       -      +
    127D  LYS*     1.3    57.8    +      -       -      +
    129D  ARG*     3.6     8.7    +      -       -      +
    135D  ALA*     3.7    20.4    -      -       +      +
    172D  VAL*     4.2     2.7    -      -       +      -
    174D  VAL*     4.0    10.1    -      -       +      +
    187D  ARG*     2.9    25.8    +      -       -      -
    191D  LEU*     3.7    31.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 127 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120D  GLN      5.7     0.2    -      -       -      -
    123D  GLU*     2.7    43.2    +      -       -      +
    124D  ASP*     3.9    12.8    +      -       -      +
    126D  ALA*     1.3    74.1    -      -       -      +
    128D  THR*     1.3    64.0    +      -       +      +
    129D  ARG      3.5     1.6    +      -       -      +
    187D  ARG*     3.9    15.9    +      -       -      +
    188D  PRO*     4.2    31.4    -      -       +      +
    191D  LEU*     3.6    16.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 128 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124D  ASP*     2.9    39.8    +      -       -      +
    125D  ALA*     3.5    10.6    +      -       -      -
    126D  ALA      3.4     0.2    -      -       -      -
    127D  LYS*     1.3    78.1    -      -       +      +
    129D  ARG*     1.3    58.8    +      -       -      +
    130D  PHE*     3.0    13.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 129 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125D  ALA      3.3    15.9    +      -       -      +
    126D  ALA*     3.7     9.0    -      -       -      +
    127D  LYS      3.3     2.9    -      -       -      +
    128D  THR*     1.3    73.5    -      -       -      +
    130D  PHE*     1.3    71.3    +      -       -      +
    131D  GLY      3.6     0.4    -      -       -      +
    132D  SER      3.9    12.3    -      -       -      +
    133D  GLY*     4.1     7.2    -      -       -      +
    134D  TRP      4.3     2.0    -      -       -      +
    148D  SER*     2.9    47.2    +      -       -      +
    149D  THR*     3.2    24.5    +      -       -      +
    150D  ALA*     3.5    22.8    -      -       -      +
    174D  VAL*     3.9    20.4    -      -       +      -
    187D  ARG*     2.8    29.6    +      -       -      +
----------------------------------------------------------
 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