Contacts of the strand formed by residues 114 - 121 (chain B) in PDB entry 2F1X


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 B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103B  PRO*     3.5     4.9    -      -       -      +
    104B  ARG*     2.9    35.5    +      -       -      +
    106B  TYR*     2.6    42.6    +      -       -      -
    112B  GLN      3.5     0.6    +      -       -      -
    113B  LYS*     1.3    75.8    -      -       -      +
    115B  VAL*     1.3    62.2    +      -       -      +
    168B  SER      2.9    15.3    +      -       -      -
    169B  ASN*     3.5    11.7    -      -       -      -
    171B  MET      3.5     7.0    -      -       -      -
    172B  ALA*     5.1     0.9    -      -       -      -
    173B  TRP*     3.7     5.8    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 115 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78B  PHE*     4.2    10.3    -      -       +      -
    101B  VAL*     4.5     3.1    -      -       +      -
    102B  MET      4.1     1.1    -      -       -      -
    114B  SER*     1.3    72.3    -      -       -      +
    116B  GLY*     1.3    66.2    +      -       -      +
    117B  PHE*     4.7     2.7    -      -       +      +
    140B  ILE*     4.2     7.4    -      -       +      -
    168B  SER      3.4     3.8    -      -       -      +
    170B  PHE*     3.0    29.9    +      -       +      +
    171B  MET*     2.9    25.9    +      -       +      +
    172B  ALA      4.3     0.7    -      -       -      +
    173B  TRP*     3.6    17.7    -      -       +      -
    176B  VAL*     3.6    34.3    -      -       +      -
    191B  PHE*     4.0    28.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 116 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    100B  MET      3.4     0.5    -      -       -      +
    101B  VAL*     3.1    12.3    -      -       -      +
    102B  MET      2.6    41.2    +      -       -      -
    104B  ARG*     3.9     5.1    -      -       -      +
    114B  SER      3.7     0.8    +      -       -      -
    115B  VAL*     1.3    73.6    -      -       -      +
    117B  PHE*     1.3    58.7    +      -       -      -
    118B  PHE*     3.9    17.2    -      -       -      -
    167B  PHE      3.6     7.4    -      -       -      -
    168B  SER      3.9     7.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 117 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99B  ILE*     3.4    25.4    -      -       +      -
    100B  MET      3.5     7.0    -      -       -      -
    101B  VAL*     4.9     0.2    -      -       -      +
    115B  VAL*     3.7     1.7    +      -       +      -
    116B  GLY*     1.3    71.9    -      -       -      +
    118B  PHE*     1.3    66.7    +      -       -      +
    138B  LEU*     3.3    23.8    -      -       +      +
    139B  LYS      3.5    32.8    -      -       -      -
    167B  PHE      3.0    31.4    +      -       -      -
    170B  PHE*     3.8    40.4    -      +       +      -
    191B  PHE*     3.7    35.2    -      +       +      -
    192B  GLU      3.6    18.2    -      -       -      -
    193B  VAL*     4.0    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 118 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201A  GLY      3.5    18.4    -      -       -      -
    202A  GLY      3.6    11.4    -      -       -      -
    203A  SER*     3.6    24.2    -      -       -      -
     99B  ILE*     3.6     3.3    -      -       -      -
    100B  MET*     2.7    55.6    +      -       +      +
    102B  MET*     3.6    28.9    -      -       -      -
    104B  ARG*     4.3     2.7    -      -       -      -
    116B  GLY*     3.9    17.3    -      -       -      -
    117B  PHE*     1.3    82.0    -      -       -      +
    119B  LEU*     1.3    62.7    +      -       -      +
    138B  LEU*     4.4     2.2    -      -       -      -
    164B  ASP*     4.3     4.3    -      -       -      -
    165B  TRP      3.5     8.3    -      -       -      +
    166B  GLY*     3.5    22.2    -      -       -      -
    168B  SER*     3.4    37.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 119 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     71B  PHE*     4.3     8.5    -      -       +      -
     97B  TRP*     3.8    37.9    -      -       +      -
     98B  LYS      3.5    18.2    -      -       -      +
     99B  ILE*     5.0     0.2    -      -       -      +
    118B  PHE*     1.3    73.2    -      -       -      +
    120B  GLN*     1.3    60.7    +      -       -      +
    136B  ALA*     3.8    28.3    -      -       +      -
    138B  LEU*     4.6     8.2    -      -       +      +
    154B  ILE*     4.1     9.2    -      -       +      -
    158B  PHE*     3.5    15.1    -      -       +      -
    164B  ASP*     3.0     4.5    -      -       -      -
    165B  TRP      2.7    38.6    +      -       -      +
    193B  VAL*     4.0    23.6    -      -       +      -
    195B  VAL*     4.0     8.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 120 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     86B  LEU*     3.7    22.0    -      -       +      +
     96B  PRO      3.9     0.3    -      -       -      +
     97B  TRP*     3.3     9.6    -      -       -      +
     98B  LYS*     2.8    72.5    +      -       +      +
    100B  MET*     3.4    27.0    -      -       +      +
    118B  PHE      4.0     0.2    +      -       -      -
    119B  LEU*     1.3    74.2    -      -       -      +
    121B  CYS*     1.3    66.4    +      -       -      +
    122B  ASN      5.8     0.4    -      -       -      +
    123B  ALA*     3.5    33.2    -      -       +      +
    163B  ASN*     3.3    15.1    +      -       -      +
    164B  ASP*     3.8     8.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 121 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     95B  LEU*     3.9    17.7    -      -       -      -
     96B  PRO      3.6     2.9    -      -       -      -
     97B  TRP*     3.7    46.0    -      -       +      -
    120B  GLN*     1.3    77.3    -      -       -      +
    122B  ASN*     1.3    71.9    +      -       -      +
    123B  ALA      3.0     3.2    +      -       -      -
    130B  TRP*     3.1    36.5    -      -       -      -
    132B  CYS*     4.5     0.2    -      -       -      -
    158B  PHE*     3.8    15.7    -      -       +      -
    163B  ASN*     2.5    18.4    +      -       -      +
----------------------------------------------------------
 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