Contacts of the strand formed by residues 74 - 87 (chain A) in PDB entry 4FAO


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 CYS 74 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      8A  CYS*     2.0    47.8    -      -       +      -
      9A  GLN      4.0     2.5    -      -       -      -
     37A  CYS*     3.6    31.4    -      -       -      +
     38A  LYS      3.8    13.2    -      -       -      -
     39A  GLY      3.4    21.6    +      -       -      +
     41A  CYS*     3.8     4.5    -      -       -      -
     73A  CYS*     1.3    77.7    -      -       -      +
     75A  VAL*     1.3    63.3    +      -       -      +
     76A  PRO*     4.8     0.2    -      -       -      +
    107A  CYS*     4.6     4.0    -      -       -      -
    108A  GLY      3.3     4.7    -      -       -      -
     73B  CYS*     5.1     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 75 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  CYS*     3.5     6.3    -      -       -      -
     73A  CYS*     4.1     4.9    -      -       +      +
     74A  CYS*     1.3    78.1    -      -       -      +
     76A  PRO*     1.3    78.9    -      -       +      +
     77A  THR*     3.3     2.6    +      -       +      -
    107A  CYS*     3.5     1.9    -      -       -      -
    108A  GLY      2.9    34.9    +      -       -      +
    110A  ARG*     3.7    33.0    -      -       +      -
     73B  CYS*     3.9    15.0    -      -       +      -
     75B  VAL*     3.2    36.1    -      -       +      -
    110B  ARG*     4.2    13.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 76 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  CYS*     3.4    22.4    -      -       +      -
     75A  VAL*     1.3    93.3    -      -       +      +
     77A  THR*     1.3    60.7    +      -       -      +
     78A  LYS      4.8     0.2    -      -       -      +
     79A  LEU*     4.1    20.7    -      -       +      +
    104A  VAL*     4.1    24.5    -      -       +      -
    106A  GLU      3.6     2.7    -      -       -      +
     52B  THR*     6.0     0.2    -      -       -      +
     54B  HIS*     4.3    11.7    -      -       +      +
     58B  GLN*     5.5     0.9    -      -       -      +
    110B  ARG*     3.3    40.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 77 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  THR*     4.8     2.9    +      -       -      -
     75A  VAL*     3.6     8.7    -      -       +      +
     76A  PRO*     1.3    73.9    -      -       -      +
     78A  LYS*     1.3    60.3    +      -       -      +
     79A  LEU*     5.7     0.9    -      -       -      -
    106A  GLU*     2.8    27.8    +      -       -      +
    107A  CYS      3.3     8.7    +      -       -      +
    108A  GLY*     3.4    30.3    -      -       -      +
    110A  ARG*     3.4    37.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 78 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  PRO      3.6     0.2    -      -       -      -
     77A  THR*     1.3    81.3    +      -       -      +
     79A  LEU*     1.3    73.1    +      -       -      +
    104A  VAL*     4.0     0.5    -      -       -      +
    105A  ALA*     2.8    38.4    +      -       +      +
    106A  GLU*     3.4    41.8    +      -       +      +
     34E  GLU*     3.7    24.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 79 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     76A  PRO*     4.1    20.0    -      -       +      +
     77A  THR      5.7     0.4    -      -       -      -
     78A  LYS*     1.3    87.7    -      -       -      +
     80A  SER*     1.3    62.5    +      -       -      +
     81A  PRO*     4.0     3.3    -      -       -      +
    100A  GLU*     4.3     6.4    -      -       -      +
    101A  GLY*     3.8    25.1    -      -       -      +
    103A  SER      3.0    28.7    -      -       -      +
    104A  VAL*     3.8     6.3    -      -       +      -
    105A  ALA*     4.4     1.6    -      -       -      -
     52B  THR*     3.8    37.2    -      -       +      +
     54B  HIS*     4.3    12.1    -      -       +      -
     34E  GLU*     5.2     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 80 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  LEU*     1.3    73.4    -      -       -      +
     81A  PRO*     1.3    72.5    -      -       -      +
    101A  GLY      4.2     1.6    -      -       -      -
    102A  MET      3.2     7.4    +      -       -      -
    103A  SER*     3.0    42.5    +      -       -      -
    104A  VAL      5.4     0.7    -      -       -      -
    105A  ALA*     4.1    14.1    -      -       -      +
     34E  GLU*     2.4    35.0    +      -       -      -
     37E  LYS*     3.5    17.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 81 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     79A  LEU      4.2     1.3    -      -       -      +
     80A  SER*     1.3    93.8    -      -       -      +
     82A  ILE*     1.3    66.8    +      -       -      +
     98A  HIS*     4.1    20.4    -      -       +      +
     99A  TYR      3.1    28.9    -      -       -      +
    100A  GLU*     3.5    24.7    -      -       -      +
    101A  GLY      4.0     2.9    -      -       -      +
    102A  MET      4.5     0.4    -      -       -      +
     34E  GLU*     4.1     9.4    -      -       -      +
     37E  LYS*     5.7     1.6    -      -       -      +
     61E  LEU*     3.7    23.4    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 82 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  PHE*     4.7     2.5    -      -       +      -
     29A  PRO*     5.5     1.6    -      -       +      -
     32A  TYR*     3.7    43.1    -      -       +      -
     33A  GLU      5.3     0.7    -      -       -      +
     81A  PRO*     1.3    79.5    -      -       -      +
     83A  SER*     1.3    62.7    +      -       -      +
     84A  VAL*     3.9    20.2    -      -       +      -
     97A  TYR      3.4     4.8    -      -       -      +
     99A  TYR*     3.1    33.2    +      -       +      +
    102A  MET*     3.8    34.9    -      -       +      +
    103A  SER*     4.2    16.8    -      -       -      -
     61E  LEU*     4.3     8.5    -      -       +      +
     62E  ASP      5.4     8.1    -      -       -      +
     63E  ASP*     6.4     1.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 83 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29A  PRO*     3.8     5.0    -      -       -      +
     82A  ILE*     1.3    74.5    -      -       -      +
     84A  VAL*     1.3    70.8    +      -       -      +
     95A  LEU*     4.4     0.9    -      -       -      -
     96A  LYS      3.4     7.2    -      -       -      -
     97A  TYR*     2.8    38.2    +      -       -      -
     60E  TRP*     3.3    41.5    -      -       -      +
     61E  LEU*     3.2    22.7    +      -       -      +
     63E  ASP*     6.0     0.7    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 84 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17A  PHE*     5.1     4.3    -      -       +      -
     25A  TRP*     5.4     0.9    -      -       +      -
     26A  ILE*     4.4    22.9    -      -       +      -
     28A  ALA      3.4    12.1    -      -       -      +
     29A  PRO*     4.3     4.7    -      -       +      -
     82A  ILE*     3.9    18.8    -      -       +      -
     83A  SER*     1.3    83.2    -      -       -      +
     85A  LEU*     1.3    58.9    +      -       -      +
     86A  TYR*     3.9    16.7    +      -       +      -
     94A  THR      3.8     0.2    -      -       -      +
     95A  LEU*     3.2     8.3    -      -       -      +
     96A  LYS*     2.9    39.6    +      -       +      +
     99A  TYR*     3.9    33.2    -      -       +      -
     60E  TRP*     3.6     1.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 85 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26A  ILE*     3.8     0.9    -      -       -      -
     27A  ILE*     2.7    41.0    +      -       +      +
     28A  ALA*     3.0    18.2    +      -       +      +
     84A  VAL*     1.3    71.6    -      -       -      +
     86A  TYR*     1.3    60.2    +      -       -      +
     93A  PRO*     4.2     7.4    -      -       +      -
     94A  THR*     3.1    30.7    -      -       -      +
     95A  LEU*     4.3     9.4    -      -       +      -
     42E  TYR*     4.8     6.5    -      -       +      -
     44E  SER*     3.7    23.1    -      -       -      +
     56E  LYS*     4.4     9.0    -      -       +      -
     60E  TRP*     3.8    11.5    -      -       +      -
     81E  VAL*     4.6    11.2    -      -       +      -
     83E  PHE*     3.6    25.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 86 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25A  TRP*     2.9    45.1    -      +       +      +
     26A  ILE*     4.3     5.4    -      -       +      -
     27A  ILE*     3.9     6.7    -      -       -      -
     84A  VAL*     4.0    16.6    -      -       +      -
     85A  LEU*     1.3    75.0    -      -       -      +
     87A  LYS*     1.3    75.8    +      -       -      +
     88A  ASP*     4.4     3.8    -      -       -      -
     92A  VAL      3.3     0.2    -      -       -      +
     93A  PRO*     3.6     0.7    -      -       -      +
     94A  THR*     2.9    60.8    +      -       -      -
     95A  LEU      4.4     0.9    -      -       -      -
     96A  LYS*     3.9    24.0    -      -       +      -
     78C  ARG*     4.1    11.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 87 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  ASP      5.1     3.8    +      -       -      -
     24A  SER      4.1    22.6    +      -       -      +
     25A  TRP*     2.9    18.0    +      -       +      +
     27A  ILE*     3.9    18.8    -      -       +      +
     86A  TYR*     1.3    79.7    -      -       -      +
     88A  ASP*     1.3    69.4    +      -       -      +
     91A  GLY*     4.2    20.2    -      -       -      +
     92A  VAL      3.8     3.6    -      -       -      -
     93A  PRO*     5.3     1.8    -      -       +      -
     78C  ARG*     3.0    21.5    +      -       -      +
     80E  GLN*     3.5    33.3    +      -       -      +
     81E  VAL*     5.8     2.5    -      -       -      -
----------------------------------------------------------
 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