Contacts of the strand formed by residues 180 - 188 (chain D) in PDB entry 3FFC


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 LYS 180 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15D  GLU*     3.2    39.4    +      -       -      +
     16D  LYS*     6.1     2.2    -      -       -      +
     92D  LEU*     3.6    21.1    -      -       +      -
    122D  PRO*     4.3    15.0    -      -       +      -
    123D  ASN*     5.6     2.0    -      -       -      +
    124D  ILE*     3.4    25.6    -      -       +      +
    171D  VAL*     4.8     1.8    -      -       +      -
    172D  LEU      3.4    11.9    -      -       -      +
    173D  ASP*     3.6    21.3    +      -       -      +
    174D  MET*     5.8     0.2    -      -       -      -
    175D  ARG*     5.7     2.0    -      -       -      +
    178D  ASP*     3.7    17.1    +      -       -      +
    179D  PHE*     1.3    88.9    -      -       -      +
    181D  SER*     1.3    61.7    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 181 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124D  ILE*     4.9     1.8    -      -       -      -
    148D  THR*     3.7     0.2    +      -       -      -
    149D  ASP*     3.8     7.6    +      -       -      -
    170D  CYS      3.5     0.9    -      -       -      +
    171D  VAL*     4.5     2.4    -      -       -      +
    172D  LEU*     2.7    64.6    +      -       -      +
    174D  MET*     6.1     0.6    -      -       -      +
    179D  PHE*     3.7    22.2    -      -       -      -
    180D  LYS*     1.3    74.3    -      -       -      +
    182D  ASN*     1.3    70.7    +      -       -      +
    183D  SER*     3.3     1.2    +      -       -      -
    211E  ARG*     3.7    14.4    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 182 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122D  PRO*     4.1     9.6    -      -       -      +
    124D  ILE*     3.5    29.5    -      -       -      +
    148D  THR*     3.1     4.7    +      -       -      -
    149D  ASP*     3.0    27.5    +      -       -      +
    150D  PHE*     3.6    40.2    +      -       +      +
    152D  SER*     3.9    19.5    +      -       -      +
    169D  LYS*     4.5    15.5    +      -       +      +
    170D  CYS      3.6     4.8    +      -       -      +
    171D  VAL*     3.5    24.2    -      -       -      +
    180D  LYS      4.5     0.2    +      -       -      -
    181D  SER*     1.3    70.2    +      -       -      +
    183D  SER*     1.3    63.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 183 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146D  LEU*     4.0    13.0    -      -       -      -
    147D  PHE      3.7     5.6    -      -       -      -
    148D  THR*     3.8     4.1    +      -       -      -
    150D  PHE*     3.8     3.5    -      -       -      -
    168D  ASP      3.6     0.5    -      -       -      +
    169D  LYS*     3.4     4.7    -      -       -      -
    170D  CYS      2.9    32.7    +      -       -      -
    172D  LEU*     3.1    31.3    -      -       -      +
    181D  SER*     3.3     2.9    +      -       -      -
    182D  ASN*     1.3    78.5    +      -       -      +
    184D  ALA*     1.3    60.7    +      -       -      +
    158E  THR*     5.7     0.2    -      -       -      +
    209E  ARG*     3.2    26.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 184 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146D  LEU*     3.3     5.7    -      -       -      +
    147D  PHE*     2.8    47.4    +      -       +      +
    150D  PHE*     4.3     1.3    -      -       +      -
    156D  VAL*     4.0    35.7    -      -       +      -
    166D  ILE*     5.5     0.2    -      -       +      -
    167D  THR*     3.8     9.4    -      -       -      +
    168D  ASP      4.4     0.4    -      -       -      -
    169D  LYS      4.4     4.5    -      -       -      +
    183D  SER*     1.3    77.0    -      -       -      +
    185D  VAL*     1.3    64.9    +      -       -      +
    199D  PHE*     4.6     2.2    -      -       +      -
    209E  ARG*     4.0     2.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 185 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144D  VAL*     3.8    21.5    -      -       +      -
    145D  CYS      3.3     3.8    -      -       -      +
    146D  LEU*     4.0     8.5    -      -       +      -
    166D  ILE*     3.5     3.5    -      -       -      +
    167D  THR*     2.8    45.6    +      -       +      +
    184D  ALA*     1.3    79.0    -      -       -      +
    186D  ALA*     1.3    64.9    +      -       -      +
    187D  TRP*     3.6    24.5    -      -       +      -
    199D  PHE*     4.3     2.2    -      -       -      -
    160E  VAL*     4.1    16.8    -      -       +      -
    162E  LEU*     4.4     2.2    -      -       +      -
    207E  SER*     4.2     3.4    -      -       -      +
    209E  ARG*     3.5    35.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 186 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144D  VAL*     3.5     1.7    -      -       -      -
    145D  CYS*     2.8    35.3    +      -       +      +
    165D  TYR      3.2    11.9    -      -       -      +
    166D  ILE*     3.8    15.5    -      -       +      -
    185D  VAL*     1.3    76.0    -      -       -      +
    187D  TRP*     1.3    65.0    +      -       -      +
    193D  PHE*     4.3    15.7    -      -       +      -
    198D  ALA*     4.7     2.2    -      -       +      -
    199D  PHE*     3.5    24.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TRP 187 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142D  LYS*     3.8    31.6    -      -       +      +
    143D  SER      3.5    15.5    -      -       -      +
    144D  VAL*     3.9    11.0    -      -       +      -
    164D  VAL*     3.7     3.3    -      -       -      +
    165D  TYR*     3.0    74.6    +      +       +      +
    167D  THR*     3.6    32.3    -      -       +      -
    185D  VAL*     3.6    18.2    -      -       +      -
    186D  ALA*     1.3    76.7    -      -       -      +
    188D  SER*     1.3    68.8    +      -       -      +
    193D  PHE*     4.1     6.1    -      -       -      -
    162E  LEU*     3.7    36.2    -      -       +      +
    164E  THR*     5.0     0.6    -      -       +      +
    193E  LEU*     4.4     7.2    -      -       +      -
    195E  GLU*     4.7     1.6    +      -       -      -
    205E  ALA*     3.6    30.1    -      -       +      -
    206E  LEU      5.0     2.7    -      -       -      -
    207E  SER*     4.2     4.5    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 188 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  ASP      4.2     0.5    -      -       -      +
    142D  LYS*     3.5    23.5    -      -       -      +
    143D  SER*     3.5    11.6    +      -       -      +
    163D  ASP      2.6    24.9    +      -       -      -
    164D  VAL*     3.6    17.1    -      -       -      +
    165D  TYR*     5.3     0.9    -      -       -      -
    187D  TRP*     1.3    85.2    -      -       -      +
    189D  ASN*     1.3    67.0    +      -       -      +
    190D  LYS*     3.3    15.2    +      -       -      +
    193D  PHE*     3.7    23.1    -      -       -      -
----------------------------------------------------------
 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