Contacts of the helix formed by residues 119 - 136 (chain D) in PDB entry 3N2N


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 119 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85D  PHE*     3.9    10.1    -      -       -      +
     86D  SER      2.8    16.5    +      -       -      +
     87D  THR*     3.5    22.4    -      -       +      +
     88D  ARG      4.8     0.2    -      -       -      +
     89D  GLY      4.8     0.2    +      -       -      -
    117D  ASP*     3.6    34.8    -      -       +      -
    118D  THR*     1.3    71.1    -      -       -      +
    120D  MET*     1.3    63.2    +      -       -      +
    121D  HIS*     3.2    32.8    -      +       +      -
    122D  GLU*     3.1    28.8    +      -       +      +
    123D  GLY      3.8     1.9    +      -       -      -
    157D  LEU*     3.7    26.1    -      -       +      +
    160D  TYR*     5.9     2.0    -      +       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 120 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  ILE*     4.8     0.2    -      -       +      -
     85D  PHE*     3.4    43.3    -      -       +      -
    118D  THR      3.1     5.9    +      -       -      -
    119D  TYR*     1.3    71.7    -      -       -      +
    121D  HIS*     1.3    65.7    +      -       -      +
    123D  GLY*     2.9    13.9    +      -       -      -
    124D  PHE*     3.2    25.8    +      -       +      -
    147D  ALA*     4.7     6.7    -      -       -      -
    149D  THR*     3.9    26.7    -      -       +      -
    153D  LEU*     3.9    20.6    -      -       +      +
    158D  PHE*     5.5     0.2    -      -       +      -
    161D  SER*     3.3    25.0    +      -       -      +
    188D  LEU*     5.4     1.1    -      -       +      -
    191D  ILE*     3.7    40.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 121 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119D  TYR*     3.5    40.1    -      +       +      -
    120D  MET*     1.3    75.9    -      -       -      +
    122D  GLU*     1.3    77.3    +      -       +      +
    124D  PHE*     3.1     6.7    +      -       -      +
    125D  GLU*     2.9    46.4    +      -       -      +
    157D  LEU*     4.5     5.0    +      -       +      +
    160D  TYR*     3.4    63.1    -      +       +      +
    161D  SER*     3.2    13.1    +      -       -      +
    163D  ARG*     6.1     1.3    -      -       -      -
    164D  GLU*     3.7    11.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 122 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87D  THR      4.7     3.6    -      -       -      +
     88D  ARG*     3.3    25.1    +      -       -      +
     89D  GLY*     2.8    35.9    +      -       -      +
    119D  TYR*     3.1    17.3    +      -       +      +
    120D  MET      3.1     0.6    -      -       -      -
    121D  HIS*     1.3    91.6    +      -       +      +
    123D  GLY*     1.3    65.4    +      -       -      +
    125D  GLU*     3.2    23.8    +      -       -      +
    126D  ARG*     3.0    35.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 123 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  ILE*     3.6    28.5    -      -       -      +
     83D  ILE*     3.6    16.8    -      -       -      +
     85D  PHE*     4.3     9.6    -      -       -      +
     89D  GLY*     4.1     3.1    -      -       -      -
    119D  TYR      3.8     2.0    +      -       -      -
    120D  MET      2.9    10.5    +      -       -      -
    122D  GLU*     1.3    79.0    -      -       -      +
    124D  PHE*     1.3    59.3    +      -       -      +
    126D  ARG*     3.4     6.1    +      -       -      +
    127D  ALA*     3.3    15.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 124 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  ILE*     3.8    16.8    -      -       +      -
    120D  MET*     3.2    33.3    +      -       +      -
    121D  HIS*     3.1     9.7    +      -       -      +
    123D  GLY*     1.3    72.8    -      -       -      +
    125D  GLU*     1.3    59.5    +      -       -      +
    127D  ALA*     3.1     2.6    +      -       -      +
    128D  SER*     2.8    33.7    +      -       -      -
    145D  ILE*     3.9    14.8    -      -       +      -
    147D  ALA*     4.0    15.9    -      -       +      -
    161D  SER*     4.7     6.5    -      -       -      -
    164D  GLU*     3.7    17.5    -      -       +      +
    165D  ALA*     3.8    18.4    -      -       +      -
    168D  SER*     3.6    17.2    +      -       -      -
    175D  VAL*     3.7    25.1    -      -       +      -
    191D  ILE*     3.5    32.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 125 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121D  HIS*     2.9    26.7    +      -       -      +
    122D  GLU*     3.4    33.1    -      -       -      +
    124D  PHE*     1.3    77.2    -      -       -      +
    126D  ARG*     1.3    72.9    +      -       -      +
    128D  SER*     3.4     5.7    +      -       -      -
    129D  GLU*     3.0    40.5    +      -       -      +
    164D  GLU*     3.7    26.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 126 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83D  ILE*     3.7    14.8    -      -       +      -
     89D  GLY      3.0    36.7    +      -       -      +
     90D  THR*     3.8     4.0    -      -       -      +
     91D  THR*     3.3    29.4    +      -       -      +
    122D  GLU*     3.0    37.7    +      -       -      +
    123D  GLY      3.6     7.2    -      -       -      +
    124D  PHE      3.3     0.2    -      -       -      -
    125D  GLU*     1.3    91.8    +      -       -      +
    127D  ALA*     1.3    61.9    +      -       -      +
    129D  GLU*     2.7    46.0    +      -       -      +
    130D  GLN*     3.3    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 127 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  TYR*     4.2    11.4    -      -       +      -
     48D  ILE*     3.9    20.9    -      -       +      -
     83D  ILE*     3.6    18.8    -      -       +      +
    123D  GLY      3.3     2.4    +      -       -      -
    124D  PHE      3.1     8.4    +      -       -      +
    126D  ARG*     1.3    75.9    -      -       -      +
    128D  SER*     1.3    59.3    +      -       -      +
    130D  GLN*     3.1     6.1    +      -       -      +
    131D  ILE*     2.9    33.0    +      -       +      +
    145D  ILE*     3.9    21.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 128 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124D  PHE      2.8    18.3    +      -       -      -
    125D  GLU*     3.8     6.7    -      -       -      -
    127D  ALA*     1.3    73.2    -      -       -      +
    129D  GLU*     1.3    58.7    +      -       -      +
    131D  ILE*     4.3     6.3    -      -       -      +
    132D  TYR*     2.9    32.4    +      -       -      +
    164D  GLU*     4.2     7.5    +      -       -      -
    167D  ARG*     4.3     3.3    -      -       -      +
    168D  SER*     2.8    37.8    +      -       -      -
    171D  LEU*     3.6    19.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 129 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125D  GLU*     3.0    23.6    +      -       +      +
    126D  ARG*     2.7    47.0    +      -       -      +
    128D  SER*     1.3    75.5    -      -       -      +
    130D  GLN*     1.3    62.9    +      -       +      +
    132D  TYR*     3.7     7.5    +      -       -      +
    133D  TYR*     3.3    21.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 130 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  TYR*     3.7    17.3    -      -       +      +
     81D  SER*     2.9    23.2    +      -       -      -
     83D  ILE*     3.8    10.3    -      -       -      +
     91D  THR*     3.5    20.2    -      -       -      +
     94D  LYS*     3.6    23.1    -      -       +      +
     95D  LEU*     3.0    31.9    +      -       +      +
    126D  ARG      3.3    17.4    +      -       -      +
    127D  ALA      3.1     6.8    +      -       -      +
    129D  GLU*     1.3    75.5    -      -       +      +
    131D  ILE*     1.3    59.1    +      -       -      +
    133D  TYR*     3.3     8.2    +      -       -      +
    134D  GLU*     2.9    35.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 131 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46D  TYR*     3.5    32.5    -      -       +      +
    127D  ALA      2.9    27.4    +      -       -      +
    128D  SER*     3.3     9.2    +      -       -      +
    130D  GLN*     1.3    74.6    -      -       -      +
    132D  TYR*     1.3    53.9    +      -       -      +
    134D  GLU*     3.2     3.8    +      -       +      +
    135D  ASN*     2.8    43.9    +      -       -      +
    143D  SER*     4.3    14.4    -      -       -      +
    145D  ILE*     4.1    13.5    -      -       +      -
    168D  SER*     4.9     4.5    -      -       -      +
    171D  LEU*     3.6    34.8    -      -       +      +
    173D  ALA*     3.8    26.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 132 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156B  ASP*     4.0    16.5    +      -       -      -
    159B  PHE*     3.5    49.0    -      +       -      -
    128D  SER      2.9    17.9    +      -       -      +
    129D  GLU*     3.8     7.9    -      -       -      +
    131D  ILE*     1.3    78.4    -      -       -      +
    133D  TYR*     1.3    66.0    +      -       +      +
    135D  ASN*     3.4    18.0    +      -       +      +
    136D  ARG*     3.4    46.6    +      -       +      +
    171D  LEU*     4.2    12.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 133 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129D  GLU      3.3    10.8    +      -       -      +
    130D  GLN*     3.3    10.8    +      -       -      +
    132D  TYR*     1.3    82.9    -      -       +      +
    134D  GLU*     1.3    94.0    +      -       +      +
    136D  ARG*     3.2    21.2    +      -       +      +
    137D  GLN*     3.3    38.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 134 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44D  ASP*     4.1     9.0    -      -       -      +
     46D  TYR*     3.8     4.7    -      -       -      +
     79D  ARG*     2.8    33.7    +      -       -      +
     95D  LEU*     3.6    29.6    -      -       +      +
    130D  GLN*     2.9    21.4    +      -       +      +
    131D  ILE*     3.7     6.3    -      -       +      +
    133D  TYR*     1.3    97.1    -      -       -      +
    135D  ASN*     1.3    68.5    +      -       -      +
    137D  GLN*     3.0    32.8    +      -       -      +
    138D  GLY      4.0     1.7    +      -       -      -
    139D  TYR*     5.0     3.5    +      -       -      +
    141D  THR*     5.8     7.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 135 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ALA*     3.5    32.7    -      -       +      +
     39A  CYS*     3.2    18.2    -      -       -      +
    220A  CYS*     3.4     1.0    -      -       -      -
    131D  ILE*     2.8    28.3    +      -       -      +
    132D  TYR*     3.4     9.9    -      -       +      +
    133D  TYR      3.3     0.2    -      -       -      -
    134D  GLU*     1.3    73.6    -      -       -      +
    136D  ARG*     1.3    57.1    +      -       +      +
    137D  GLN      3.0     0.2    -      -       -      -
    138D  GLY*     2.9    20.3    +      -       -      -
    139D  TYR      4.8     3.6    +      -       -      +
    141D  THR*     4.9     8.0    +      -       -      -
    171D  LEU*     3.0    45.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 136 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  CYS*     3.8    12.3    -      -       -      -
    220A  CYS*     3.4    18.0    -      -       +      +
    132D  TYR*     3.4    46.3    +      -       +      +
    133D  TYR*     3.2    16.4    +      -       +      +
    134D  GLU      3.2     1.0    -      -       -      -
    135D  ASN*     1.3    75.5    -      -       +      +
    137D  GLN*     1.3    66.2    +      -       -      +
    138D  GLY      3.3     0.2    -      -       -      -
----------------------------------------------------------
 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