Contacts of the helix formed by residues 122 - 138 (chain D) in PDB entry 1E3S


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 LEU 122 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114C  PHE*     4.5     7.4    -      -       +      -
    118C  ILE*     4.0    24.0    -      -       +      -
    122C  LEU*     4.3    17.5    -      -       +      -
    170C  ALA*     4.3     4.7    -      -       +      +
    118D  ILE*     3.0    21.3    +      -       +      +
    121D  ASN*     1.3    76.1    -      -       -      +
    123D  ILE*     1.3    66.1    +      -       +      +
    124D  GLY      3.3     1.1    -      -       -      -
    125D  THR*     3.3     2.1    +      -       -      -
    126D  PHE*     3.2    21.0    +      -       -      +
    171D  SER*     3.9    18.4    -      -       -      +
    174D  GLY*     3.6    41.1    -      -       -      +
    175D  ILE*     3.7    11.2    -      -       +      +
    178D  MET*     4.2    16.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 123 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111C  LEU*     3.8    27.2    -      -       +      +
    114C  PHE*     4.1    25.1    -      -       +      -
    115C  GLN*     3.1    52.5    -      -       +      +
    118C  ILE*     4.4     9.6    -      -       +      -
     66D  THR*     5.9     6.3    -      -       +      +
    118D  ILE*     3.1    19.1    +      -       +      +
    119D  ASN*     3.3    26.5    -      -       +      +
    122D  LEU*     1.3    74.5    -      -       +      +
    124D  GLY*     1.3    55.7    +      -       -      +
    126D  PHE*     3.4     3.5    +      -       -      +
    127D  ASN*     3.0    26.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 124 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65D  VAL*     3.6    31.3    -      -       -      +
     66D  THR*     4.6     2.0    -      -       -      -
    119D  ASN      2.9    14.1    +      -       -      -
    120D  VAL      3.5    13.8    +      -       -      -
    122D  LEU      3.3     0.6    -      -       -      -
    123D  ILE*     1.3    72.4    -      -       -      +
    125D  THR*     1.4    63.0    +      -       -      +
    127D  ASN*     3.4     2.9    +      -       -      +
    128D  VAL*     3.2    28.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 125 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90D  ASN*     3.7    26.9    +      -       +      +
     92D  ALA      4.8     7.3    +      -       -      -
    120D  VAL      4.1     0.9    +      -       -      -
    121D  ASN      3.2    23.1    +      -       -      -
    122D  LEU      3.3     5.3    +      -       -      -
    124D  GLY*     1.4    75.7    -      -       -      +
    126D  PHE*     1.3    63.1    +      -       -      +
    128D  VAL*     3.4     4.2    +      -       -      +
    129D  ILE*     3.1    28.9    +      -       +      +
    152D  ASN*     3.7    27.6    -      -       +      +
    153D  THR      5.9     0.2    +      -       -      -
    175D  ILE*     4.6    12.0    -      -       +      +
    178D  MET*     4.0    11.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 126 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  THR*     4.0    24.5    -      -       +      -
    109C  HIS*     3.9    32.3    -      +       +      -
    110C  THR      4.8     0.2    -      -       -      -
    111C  LEU*     5.0     3.4    -      -       +      -
    114C  PHE*     3.4    65.5    -      +       +      -
    166C  ALA*     4.2     5.6    -      -       +      -
    122D  LEU      3.2     9.0    +      -       -      +
    123D  ILE      3.8     6.1    -      -       -      +
    125D  THR*     1.3    76.3    -      -       -      +
    127D  ASN*     1.3    59.3    +      -       -      +
    129D  ILE*     3.3     5.0    +      -       +      +
    130D  ARG*     2.9    55.0    +      -       +      +
    178D  MET*     4.2     7.6    -      -       +      +
    182D  ILE*     4.0    22.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 127 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111C  LEU*     3.7    18.5    -      -       +      +
     65D  VAL      3.2    21.3    +      -       -      +
     66D  THR*     4.1     2.6    -      -       -      -
     67D  SER      3.6     5.3    +      -       -      -
     68D  GLU*     3.6    25.7    -      -       -      +
     71D  VAL*     4.0     7.9    -      -       -      +
    123D  ILE*     3.0    18.0    +      -       +      +
    124D  GLY*     3.6     6.3    -      -       -      +
    125D  THR      3.3     0.2    -      -       -      -
    126D  PHE*     1.3    76.7    -      -       -      +
    128D  VAL*     1.3    61.6    +      -       -      +
    130D  ARG*     2.8    46.0    +      -       -      +
    131D  LEU*     3.3    29.3    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 128 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14D  VAL*     5.8     3.8    -      -       +      -
     16D  THR*     4.0    23.8    -      -       +      -
     40D  LEU*     5.4     2.2    -      -       +      -
     65D  VAL*     4.0    15.3    -      -       +      +
     71D  VAL*     4.3    23.8    -      -       +      -
     75D  LEU*     4.9     6.4    -      -       +      +
     88D  ALA*     5.1     8.3    -      -       +      -
     89D  VAL      6.3     0.2    -      -       -      -
     90D  ASN*     3.4    29.2    -      -       -      +
    124D  GLY      3.2    14.4    +      -       -      +
    125D  THR      3.8     2.0    -      -       -      +
    126D  PHE      3.3     0.2    -      -       -      -
    127D  ASN*     1.3    77.0    -      -       -      +
    129D  ILE*     1.3    61.8    +      -       -      +
    131D  LEU*     4.1     0.5    -      -       -      +
    132D  VAL*     3.0    32.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 129 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  THR*     4.1    11.4    -      -       +      -
     90D  ASN*     4.0    13.2    -      -       -      +
    125D  THR*     3.1    25.9    +      -       +      +
    126D  PHE*     3.7     5.4    -      -       +      +
    128D  VAL*     1.3    75.8    -      -       -      +
    130D  ARG*     1.3    62.0    +      -       -      +
    132D  VAL*     3.8     8.3    -      -       -      +
    133D  ALA*     3.1    23.9    +      -       -      +
    150D  ILE*     4.0    22.6    -      -       +      +
    152D  ASN*     3.5    25.8    -      -       -      +
    178D  MET*     4.2    15.9    -      -       +      -
    182D  ILE*     4.1    35.7    -      -       +      -
    186D  LEU*     5.0     1.3    -      -       +      -
    193D  VAL*     5.4     1.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 130 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  THR*     4.2    17.1    -      -       +      +
    101C  TYR*     5.1     1.6    -      -       -      +
    108C  VAL*     3.6    33.7    +      -       +      +
    109C  HIS      3.0    25.8    +      -       -      +
    110C  THR*     4.0     2.6    -      -       -      +
    111C  LEU*     3.7    25.5    -      -       -      +
     68D  GLU*     2.6    40.0    +      -       -      +
    126D  PHE*     2.9    49.1    +      -       +      +
    127D  ASN*     2.8    34.5    +      -       -      +
    129D  ILE*     1.3    72.7    -      -       -      +
    131D  LEU*     1.3    78.8    +      -       +      +
    133D  ALA*     3.7    10.2    +      -       -      +
    134D  GLY      4.0     3.6    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 131 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108C  VAL*     4.6     9.0    -      -       +      -
     68D  GLU*     4.0    21.1    -      -       +      +
     71D  VAL*     3.7    21.8    -      -       +      -
     72D  GLN*     3.9    29.6    -      -       -      +
     75D  LEU*     3.8    16.9    -      -       +      +
    127D  ASN*     3.3    31.8    +      -       -      +
    128D  VAL      4.3     0.7    -      -       -      +
    130D  ARG*     1.3   103.9    -      -       +      +
    132D  VAL*     1.3    61.4    +      -       -      +
    133D  ALA      3.5     0.3    +      -       -      -
    134D  GLY*     3.7     5.9    +      -       -      -
    135D  VAL*     3.7    17.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 132 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14D  VAL*     5.7     1.1    -      -       +      -
     75D  LEU*     3.8    23.7    -      -       +      +
     85D  ILE*     4.0    31.4    -      -       +      -
     88D  ALA*     4.0    20.6    -      -       +      -
    128D  VAL*     3.0    24.5    +      -       +      +
    129D  ILE*     3.8     7.4    -      -       -      +
    131D  LEU*     1.3    74.1    -      -       -      +
    133D  ALA*     1.3    67.0    +      -       -      +
    135D  VAL*     3.1     5.0    +      -       -      +
    136D  MET*     3.0    31.7    +      -       +      +
    150D  ILE*     3.9    21.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 133 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100C  THR*     5.1     1.1    -      -       +      -
    101C  TYR*     4.3    12.8    -      -       +      -
    129D  ILE      3.1    18.6    +      -       -      +
    130D  ARG*     4.0     6.7    -      -       -      +
    131D  LEU      3.3     0.6    -      -       -      -
    132D  VAL*     1.3    80.3    -      -       -      +
    134D  GLY*     1.3    57.0    +      -       -      +
    136D  MET*     3.5     1.9    +      -       -      -
    137D  GLY*     3.0    25.6    +      -       -      -
    150D  ILE*     5.0     1.1    -      -       +      -
    186D  LEU*     4.2    33.4    -      -       +      -
    189D  ILE*     4.3     3.1    -      -       -      +
    191D  ILE*     3.7    16.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 134 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  TYR*     4.0    32.7    +      -       -      -
    108C  VAL*     5.6     3.4    -      -       -      -
    130D  ARG      4.0     4.6    +      -       -      -
    131D  LEU      3.7     6.3    +      -       -      -
    132D  VAL      3.3     0.4    -      -       -      -
    133D  ALA*     1.3    78.2    -      -       -      +
    135D  VAL*     1.3    62.3    +      -       -      +
    137D  GLY*     3.5     8.1    +      -       -      -
    138D  GLN*     3.6    19.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 135 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72D  GLN*     5.4     5.2    -      -       -      +
     75D  LEU*     4.8    17.0    -      -       +      +
     79D  LYS*     4.3    24.6    -      -       +      -
     84D  ARG*     5.3     0.7    -      -       -      -
     85D  ILE*     3.8    36.4    +      -       +      +
    131D  LEU      3.7    15.7    +      -       -      +
    132D  VAL*     3.1     9.5    +      -       +      +
    134D  GLY*     1.3    75.1    -      -       -      +
    136D  MET*     1.3    64.8    +      -       -      +
    138D  GLN*     3.2    30.5    +      -       -      +
    139D  ASN*     4.1     5.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 136 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     85D  ILE*     3.8    16.2    -      -       +      +
     86D  ASP      3.9     8.7    -      -       -      +
     87D  VAL      3.8     7.0    -      -       -      +
     88D  ALA*     3.6    33.9    -      -       +      +
    132D  VAL*     3.0    27.3    +      -       +      +
    135D  VAL*     1.3    76.1    -      -       -      +
    137D  GLY*     1.3    62.8    +      -       -      +
    139D  ASN*     3.0    30.5    +      -       -      +
    147D  ARG*     3.7    18.2    -      -       -      +
    148D  GLY*     4.0    12.8    -      -       -      -
    149D  VAL      3.7    10.8    -      -       -      +
    150D  ILE*     3.9    26.0    -      -       +      -
    191D  ILE*     3.7    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 137 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    101C  TYR*     5.4     4.3    -      -       -      -
    103C  GLU*     5.0     5.2    -      -       -      +
    133D  ALA      3.0    16.6    +      -       -      -
    134D  GLY*     3.5     5.4    +      -       -      -
    135D  VAL      3.2     1.0    -      -       -      -
    136D  MET*     1.3    76.3    -      -       -      +
    138D  GLN*     1.3    58.2    +      -       -      +
    147D  ARG*     3.5    26.4    +      -       -      -
    189D  ILE*     4.3    16.3    -      -       -      +
    191D  ILE*     4.4     0.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 138 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79D  LYS*     2.6    44.7    +      -       -      +
    134D  GLY      3.6    16.5    +      -       -      +
    135D  VAL*     3.2    24.7    +      -       -      +
    136D  MET      3.1     0.8    +      -       -      -
    137D  GLY*     1.3    75.1    -      -       -      +
    139D  ASN*     1.3    63.9    +      -       -      +
    140D  GLU      3.8     0.9    +      -       -      -
----------------------------------------------------------
 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