Contacts of the strand formed by residues 169 - 178 (chain B) in PDB entry 1P5Q


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 ILE 169 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  GLY      4.4     2.2    -      -       -      +
    168B  ALA*     1.3    75.3    -      -       -      +
    170B  VAL*     1.3    60.6    +      -       -      +
    189B  ARG*     3.8    39.9    -      -       -      +
    190B  PHE*     3.5    10.5    -      -       -      +
    191B  GLU*     4.0    20.2    -      -       +      +
    252B  PHE*     2.9    24.3    -      -       -      +
    253B  GLU*     3.1    24.5    +      -       +      +
    276B  ARG*     3.3    38.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 170 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    164B  PRO*     3.8    26.0    -      -       +      -
    168B  ALA*     4.5     1.1    -      -       +      -
    169B  ILE*     1.3    77.6    -      -       -      +
    171B  GLU*     1.3    54.8    +      -       -      +
    172B  VAL*     4.1    11.2    -      -       +      -
    189B  ARG*     2.7    35.9    -      -       -      +
    190B  PHE*     2.9    49.6    +      -       +      +
    192B  ILE*     4.0    18.8    -      -       +      -
    208B  ILE*     4.2     4.7    -      -       +      -
    249B  LEU*     4.0     7.6    -      -       +      -
    251B  SER      3.5     7.4    -      -       -      +
    252B  PHE*     3.7    15.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 171 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  VAL*     1.3    71.6    -      -       -      +
    172B  VAL*     1.3    64.9    +      -       -      +
    188B  LEU      3.7     4.6    -      -       -      -
    189B  ARG*     3.3    35.1    +      -       +      +
    250B  LYS*     2.8    45.4    +      -       +      -
    251B  SER*     2.9    38.2    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 172 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  VAL*     4.1     9.0    -      -       +      -
    171B  GLU*     1.3    85.9    -      -       -      +
    173B  ALA*     1.3    61.1    +      -       -      +
    174B  LEU*     4.5     9.0    -      -       +      -
    187B  GLU*     3.6     1.3    -      -       -      +
    188B  LEU*     2.9    52.6    +      -       +      +
    190B  PHE*     3.8    19.3    -      -       +      -
    208B  ILE*     4.6    15.9    -      -       +      -
    247B  LEU*     5.2     4.9    -      -       +      -
    248B  HIS      3.2     8.7    -      -       -      +
    249B  LEU*     3.5    33.0    -      -       +      +
    250B  LYS*     4.2     4.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 173 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  VAL*     1.3    73.8    -      -       -      +
    174B  LEU*     1.3    60.3    +      -       -      +
    186B  ARG      3.5     6.3    -      -       -      +
    187B  GLU*     3.4    32.8    -      -       +      +
    247B  LEU*     3.0     2.6    -      -       -      +
    248B  HIS*     2.6    50.4    +      -       +      +
    250B  LYS*     4.6     6.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 174 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  VAL*     4.5     8.1    -      -       +      -
    173B  ALA*     1.3    75.0    -      -       -      +
    175B  GLU*     1.3    81.6    +      -       -      +
    176B  GLY      4.9     0.4    -      -       -      +
    184B  ASP*     4.0    22.7    -      -       -      +
    185B  GLN*     4.3     0.3    -      -       -      +
    186B  ARG*     3.0    46.5    +      -       +      +
    188B  LEU*     3.9    23.6    -      -       +      -
    200B  LEU*     3.4    33.4    -      -       +      -
    204B  LEU*     4.4     7.6    -      -       +      -
    208B  ILE*     5.9     1.3    -      -       +      -
    245B  TYR*     4.8     8.3    -      -       +      -
    246B  GLU      3.1    11.2    -      -       -      +
    247B  LEU*     3.8    12.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 175 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  LEU*     1.3    86.6    -      -       -      +
    176B  GLY*     1.3    60.6    +      -       -      +
    177B  TYR*     3.3    34.1    +      -       +      -
    182B  LEU*     3.8     5.8    -      -       +      -
    184B  ASP      2.7     7.2    -      -       -      +
    185B  GLN*     3.5    38.8    +      -       +      +
    245B  TYR*     3.3     5.6    -      -       -      -
    246B  GLU*     2.8    43.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 176 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  LEU*     4.9     0.2    -      -       -      +
    175B  GLU*     1.3    72.7    -      -       -      +
    177B  TYR*     1.3    56.8    +      -       -      -
    181B  LYS      3.5     0.7    -      -       -      +
    182B  LEU*     3.6     3.8    -      -       -      +
    183B  PHE*     2.8    47.9    +      -       -      -
    184B  ASP*     2.5    17.0    +      -       -      +
    244B  LYS      3.8     0.2    -      -       -      -
    245B  TYR*     3.5    27.1    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 177 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175B  GLU*     3.3    42.8    +      -       +      -
    176B  GLY*     1.3    71.4    -      -       -      -
    178B  TYR*     1.3    58.7    -      -       -      +
    179B  LYS      4.2     0.2    -      -       -      -
    180B  ASP*     3.9    19.5    -      -       -      +
    181B  LYS      3.2    17.0    -      -       -      -
    182B  LEU*     3.3    29.1    -      -       +      +
    183B  PHE*     3.2    10.9    -      -       -      -
    243B  LEU*     3.4     2.6    -      -       -      -
    244B  LYS*     2.5    77.9    +      -       +      +
    246B  GLU*     3.4    25.3    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 178 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    233A  GLU*     3.3    31.7    -      -       -      +
   1002A  SO4      3.8     4.7    +      -       -      -
    177B  TYR*     1.3    73.6    -      -       -      +
    179B  LYS*     1.3    88.9    +      -       +      +
    181B  LYS*     2.9    36.1    +      -       +      +
    183B  PHE*     3.5    20.4    -      -       +      -
    235B  PHE      5.8     1.1    -      -       -      -
    236B  GLN      4.9     2.9    -      -       -      -
    237B  ILE*     4.7     8.7    -      -       +      -
    238B  PRO*     3.0    36.8    -      -       +      +
    240B  ASN      5.5     0.3    +      -       -      -
    241B  ALA*     3.6    22.5    -      -       +      +
    242B  GLU      3.3    20.6    -      -       -      -
    243B  LEU*     3.5     9.0    -      -       +      +
----------------------------------------------------------
 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