Contacts of the strand formed by residues 124 - 131 (chain C) in PDB entry 3ESF


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 GLY 124 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120C  HIS*     3.5     7.0    -      -       -      -
    122C  GLY      3.7     3.6    +      -       -      -
    123C  SER*     1.3    75.9    -      -       -      +
    125C  TRP*     1.3    70.1    +      -       -      -
    142C  THR      3.3    12.3    -      -       -      -
    144C  ASP      3.8     5.4    -      -       -      -
    162C  VAL*     2.9    31.1    +      -       -      +
    163C  TRP*     3.4    17.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 125 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     72C  GLN*     3.2    18.1    +      -       -      -
     75C  ASN*     3.3    53.9    -      -       +      +
     76C  HIS*     3.6    23.3    -      +       -      -
     79C  TYR*     3.9     9.2    -      -       +      -
    120C  HIS*     4.5     2.8    +      -       -      -
    124C  GLY*     1.3    75.7    -      -       -      -
    126C  ALA*     1.3    59.9    +      -       -      +
    127C  TRP*     3.2    21.7    -      +       +      +
    141C  GLN*     3.4     8.0    -      -       -      +
    142C  THR*     2.8    43.5    +      -       -      +
    144C  ASP      3.0    28.0    +      -       -      -
    146C  GLY      4.2     0.4    -      -       -      -
    159C  THR*     3.5    16.2    -      -       +      +
    160C  CYS      3.7     3.8    -      -       -      -
    161C  ASP*     3.3    49.6    -      -       +      -
    162C  VAL*     4.0     4.2    -      -       -      +
    163C  TRP*     3.6     4.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 126 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113C  PHE*     3.6    22.2    -      -       +      -
    116C  ALA*     4.4    11.2    -      -       +      +
    117C  ALA*     3.9    35.4    -      -       +      +
    120C  HIS*     6.4     0.2    -      -       +      -
    125C  TRP*     1.3    72.7    -      -       -      +
    127C  TRP*     1.3    62.4    +      -       -      +
    139C  VAL*     5.6     0.4    -      -       +      -
    140C  PHE      3.9     2.7    -      -       -      -
    141C  GLN*     4.7     1.6    -      -       +      +
    159C  THR*     3.0     4.3    +      -       -      -
    160C  CYS      2.9    37.3    +      -       -      +
    162C  VAL*     4.7     2.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 127 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     74C  PHE*     4.3     7.0    -      +       -      -
     75C  ASN*     3.3    44.2    -      -       +      -
     78C  PHE*     3.8    11.9    -      +       -      -
    113C  PHE*     3.7     6.4    -      -       -      -
    125C  TRP*     3.2    14.8    -      +       +      +
    126C  ALA*     1.3    78.5    -      -       -      +
    128C  LEU*     1.3    59.2    +      -       -      +
    129C  VAL*     3.7    16.8    -      -       +      -
    139C  VAL*     3.4    10.7    -      -       -      +
    140C  PHE*     2.7    45.7    +      +       -      +
    142C  THR*     2.9    32.4    +      -       +      +
    148C  PRO*     3.4    25.1    -      -       +      -
    156C  PRO*     3.8    30.1    -      -       +      -
    158C  LEU      3.3     9.6    -      -       -      +
    159C  THR*     3.4    35.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 128 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95C  LEU*     5.0     2.7    -      -       +      -
     99C  ILE*     4.6    16.4    -      -       +      -
    103C  PHE*     3.9    27.4    -      -       +      -
    109C  PHE*     3.9    30.7    -      -       +      -
    113C  PHE*     3.8     5.2    -      -       +      -
    127C  TRP*     1.3    73.7    -      -       -      +
    129C  VAL*     1.3    63.1    +      -       -      +
    137C  LEU*     4.0    17.3    -      -       +      -
    138C  LYS      3.5    16.4    -      -       -      +
    156C  PRO*     4.0     0.3    -      -       -      +
    157C  ILE*     2.9    47.4    +      -       +      -
    158C  LEU*     3.0    32.7    +      -       +      +
    188C  TRP*     5.1     0.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 129 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127C  TRP*     3.7    19.5    -      -       +      -
    128C  LEU*     1.3    80.2    -      -       -      +
    130C  GLN*     1.3    61.2    +      -       -      +
    137C  LEU*     3.3     6.2    -      -       -      +
    138C  LYS*     2.9    58.7    +      -       +      +
    140C  PHE*     3.8    13.7    -      -       +      -
    148C  PRO*     4.0    25.4    -      -       +      -
    154C  LEU*     3.7    22.7    -      -       +      -
    155C  LYS      3.3    10.3    -      -       -      +
    156C  PRO*     4.2     7.2    -      -       +      -
    157C  ILE*     4.0     4.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 130 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  VAL*     1.3    73.9    -      -       -      +
    131C  ASP*     1.3    74.1    +      -       -      +
    132C  THR*     3.4     4.8    +      -       -      -
    135C  LYS*     3.3    49.5    +      -       -      +
    136C  LYS      3.4     3.6    -      -       -      +
    137C  LEU*     3.7    12.1    -      -       +      -
    153C  ASP      3.4     1.6    -      -       -      +
    154C  LEU*     3.5     4.5    -      -       -      -
    155C  LYS*     2.8    69.9    +      -       -      +
    157C  ILE*     4.0     6.5    -      -       +      +
    195C  PHE*     3.7    27.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 131 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129C  VAL*     4.2     0.8    -      -       -      +
    130C  GLN*     1.3    71.0    -      -       -      +
    132C  THR*     1.3    54.7    +      -       -      +
    133C  THR*     2.7    44.0    +      -       -      -
    134C  THR*     3.0    26.5    +      -       -      +
    135C  LYS*     2.7    36.0    +      -       -      -
    136C  LYS*     2.8    14.8    +      -       +      +
    138C  LYS*     5.2    12.1    +      -       +      +
    153C  ASP*     3.3    15.5    -      -       -      +
    154C  LEU*     4.3    11.7    -      -       +      +
----------------------------------------------------------
 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