Contacts of the strand formed by residues 84 - 93 (chain B) in PDB entry 1PR1


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 84 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  ASP      3.0     3.6    +      -       -      -
     15B  VAL*     3.3    30.8    -      -       +      -
     16B  VAL      3.0    24.6    +      -       -      -
     82B  VAL*     3.3     5.7    -      -       -      +
     83B  LYS*     1.3    86.3    -      -       +      +
     85B  ILE*     1.3    63.1    +      -       -      +
     86B  ILE*     6.1     0.4    -      -       +      -
    130B  ASP*     5.6     0.2    -      -       -      -
    132B  ASP*     6.2     1.4    -      -       -      +
    133B  MET*     3.9    38.4    -      -       +      +
    136B  ASN*     4.2    10.3    -      -       -      +
    195B  LYS*     3.3    25.1    -      -       +      +
    232B  VAL*     5.1    11.3    +      -       +      +
    235B  GLY*     4.2    25.5    +      -       -      -
    236B  ASP*     5.6     1.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 85 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  VAL*     3.4     9.4    -      -       +      +
     18B  MET*     4.0    25.4    -      -       +      -
     73B  THR*     3.4    49.8    -      -       +      +
     76B  LEU*     4.6     5.2    -      -       +      -
     77B  ILE*     4.2    15.7    -      -       +      -
     82B  VAL*     3.9    13.5    -      -       +      -
     83B  LYS      5.7     0.4    -      -       -      -
     84B  LYS*     1.3    80.7    -      -       -      +
     86B  ILE*     1.3    71.2    +      -       -      +
     87B  ARG*     4.6     2.5    -      -       +      +
    133B  MET*     3.8     0.7    -      -       -      +
    185B  ILE*     4.3    11.9    -      -       +      -
    194B  ALA*     6.2     0.2    -      -       +      -
    195B  LYS      3.0    10.6    +      -       -      +
    196B  ALA*     3.2     8.7    -      -       +      +
    197B  LEU      2.9    24.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 86 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     15B  VAL*     4.7     7.0    -      -       +      -
     16B  VAL      2.9     8.6    +      -       -      +
     17B  LEU*     3.2    25.9    -      -       +      +
     18B  MET      2.7    30.5    +      -       -      -
     84B  LYS*     6.1     0.4    -      -       +      -
     85B  ILE*     1.3    74.6    -      -       -      +
     87B  ARG*     1.3    64.6    +      -       -      +
     88B  VAL*     3.7    14.2    +      -       +      +
    133B  MET*     3.4    29.2    -      -       +      -
    197B  LEU*     3.1    13.9    -      -       +      +
    199B  ILE*     4.2    13.0    -      -       +      -
    228B  ALA*     3.9    16.8    -      -       +      +
    231B  SER*     4.0     8.7    -      -       -      +
    232B  VAL*     3.8    22.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 87 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18B  MET*     3.3    15.5    -      -       +      +
     20B  GLY      4.3     0.8    -      -       -      +
     62B  HIS*     3.1    32.2    +      -       +      +
     85B  ILE*     4.1     4.6    -      -       +      +
     86B  ILE*     1.3    74.9    -      -       -      +
     88B  VAL*     1.3    60.9    +      -       -      +
     89B  GLY*     3.7    12.8    -      -       -      -
     90B  SER      3.6    12.3    +      -       -      -
    179B  GLU*     3.1    23.6    +      -       -      +
    181B  GLU*     3.4    20.6    +      -       -      +
    182B  ALA      4.6     1.6    -      -       -      +
    185B  ILE*     4.7    11.4    -      -       +      +
    197B  LEU      2.7     9.6    +      -       -      +
    198B  THR*     3.3    27.0    +      -       +      -
    199B  ILE      2.8    29.6    +      -       -      -
    200B  CYS*     3.6    12.1    -      -       -      -
    246B  FMB      3.2    12.3    +      -       -      -
    249B  PO4      2.7    31.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 88 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17B  LEU*     4.5     5.6    -      -       +      -
     18B  MET      3.1    12.5    +      -       -      +
     19B  PRO*     3.4    35.0    -      -       +      +
     28B  ILE*     4.1    10.1    -      -       +      -
     86B  ILE*     4.1     8.5    -      -       +      +
     87B  ARG*     1.3    79.2    -      -       -      +
     89B  GLY*     1.3    58.0    +      -       -      +
    199B  ILE*     3.4     6.1    -      -       +      +
    221B  PHE*     4.8     3.7    -      -       +      -
    224B  MET*     3.9    20.4    -      -       +      +
    225B  ILE*     3.7    30.3    -      -       +      -
    228B  ALA*     3.9    27.6    -      -       +      -
    249B  PO4      4.1     0.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 89 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87B  ARG*     3.7     9.4    -      -       -      +
     88B  VAL*     1.3    75.6    -      -       -      +
     90B  SER*     1.3    61.3    +      -       -      -
    199B  ILE      3.1     8.5    +      -       -      -
    200B  CYS*     3.2     6.3    -      -       -      -
    201B  THR*     3.1    22.0    +      -       -      -
    221B  PHE*     5.3     5.3    -      -       -      -
    224B  MET*     3.4    11.2    -      -       -      +
    249B  PO4      3.2    21.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 90 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     87B  ARG*     3.6    10.9    +      -       -      -
     89B  GLY*     1.3    75.6    -      -       -      -
     91B  CYS*     1.3    66.5    +      -       -      +
    179B  GLU*     3.7     1.4    -      -       -      +
    200B  CYS*     4.3     1.1    -      -       -      -
    201B  THR*     3.4     9.9    -      -       -      -
    203B  SER*     3.5    21.3    +      -       -      -
    221B  PHE*     6.4     1.3    -      -       -      -
    246B  FMB      2.8    34.9    +      -       -      -
    249B  PO4      2.8    24.7    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 91 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     90B  SER*     1.3    78.0    -      -       -      +
     92B  GLY*     1.3    59.5    +      -       -      +
    104B  VAL*     4.7     5.6    -      -       -      -
    153B  LEU*     4.9     0.9    -      -       +      -
    177B  GLY*     3.7    20.4    -      -       -      -
    178B  VAL      3.1    24.2    -      -       -      +
    179B  GLU*     4.2     4.3    -      -       +      -
    200B  CYS*     3.6    24.7    -      -       +      -
    201B  THR      3.3     4.9    +      -       -      -
    202B  VAL*     3.4    28.7    -      -       -      -
    203B  SER*     3.0    26.7    +      -       -      -
    246B  FMB      3.5     9.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 92 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91B  CYS*     1.3    75.0    -      -       -      +
     93B  ALA*     1.3    61.0    -      -       -      -
    177B  GLY*     3.4     4.8    -      -       -      -
    178B  VAL*     2.7    39.8    +      -       -      +
    202B  VAL*     4.6     0.7    -      -       -      -
    204B  ASP*     2.9    21.5    -      -       -      -
    205B  HIS*     5.1     0.2    -      -       -      -
    246B  FMB      3.3    13.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 93 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     92B  GLY*     1.3    72.9    -      -       -      -
     94B  VAL*     1.3    63.2    +      -       -      +
     98B  VAL*     3.6    27.6    -      -       +      -
    176B  LEU      4.1     7.0    -      -       -      +
    202B  VAL*     3.7    12.6    -      -       +      -
    204B  ASP      2.9     7.9    +      -       -      -
    205B  HIS*     3.4    28.0    +      -       +      +
    206B  ILE*     3.1    27.2    +      -       -      +
----------------------------------------------------------
 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