Contacts of the strand formed by residues 53 - 67 (chain C) in PDB entry 2PT9


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 GLN 53 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  TRP*     3.6     8.4    -      -       -      -
     56B  PHE*     4.3    13.6    -      -       +      -
     57B  SER      3.3    10.3    -      -       -      +
     58B  LEU*     4.0    11.9    -      -       +      -
     82B  TYR*     2.9    29.8    +      -       +      -
     45C  GLU      4.2     1.0    -      -       -      +
     46C  PHE*     4.4     4.2    -      -       -      -
     47C  SER      5.1     0.2    +      -       -      -
     50C  TRP*     3.4    48.3    -      -       +      +
     51C  PRO      4.6     2.3    -      -       -      +
     52C  GLY*     1.3    80.6    +      -       -      +
     54C  ALA*     1.3    64.4    +      -       -      +
    234C  ILE*     3.8    14.0    -      -       -      +
    264C  PRO*     4.3     5.3    -      -       -      +
    265C  CYS*     3.6    31.5    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 54 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  TRP*     4.0     4.9    -      -       +      -
     55B  ALA      3.9     0.3    -      -       -      +
     56B  PHE*     3.5     8.6    -      -       -      -
     57B  SER*     2.9    39.9    +      -       -      +
     45C  GLU      3.8    12.3    -      -       -      +
     46C  PHE*     3.4    36.1    -      -       +      -
     50C  TRP*     5.3     0.9    -      -       -      -
     53C  GLN*     1.3    78.3    -      -       -      +
     55C  PHE*     1.3    63.8    +      -       -      +
     56C  SER*     4.9     3.8    +      -       -      +
    702C  1PG      5.3     0.2    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 55 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54B  GLN*     3.9    31.9    -      -       +      -
     55B  ALA      3.4    17.7    -      -       -      -
     56B  PHE*     4.7    13.0    -      +       +      +
    266B  CYS*     5.9     2.5    -      -       -      -
     43C  PHE*     4.2     0.5    -      -       -      +
     45C  GLU*     2.7    48.6    +      -       -      +
     50C  TRP*     6.0     0.2    -      -       -      -
     54C  ALA*     1.3    75.0    -      -       -      +
     56C  SER*     1.3    59.4    +      -       -      +
     57C  LEU*     3.7    29.8    -      -       +      -
     81C  TYR*     4.8     4.3    -      -       -      -
     91C  ILE*     4.3    16.9    -      -       +      +
    261C  PRO*     4.3    11.4    -      -       +      -
    262C  THR*     3.7    41.3    -      -       +      -
    263C  TYR      5.8     2.7    -      -       -      +
    264C  PRO*     6.0     4.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 56 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54B  GLN*     3.3     5.7    -      -       -      +
     55B  ALA*     2.8    40.2    +      -       -      -
     57B  SER*     4.8     3.5    +      -       -      -
     42C  TRP*     3.8    17.0    -      -       -      -
     43C  PHE      3.1     8.7    -      -       -      -
     44C  SER*     2.6    29.1    +      -       -      -
     54C  ALA*     4.9     2.8    +      -       -      +
     55C  PHE*     1.3    77.4    -      -       -      +
     57C  LEU*     1.3    66.5    +      -       -      +
     91C  ILE*     6.3     0.4    -      -       -      -
    702C  1PG      3.4    17.3    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 57 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53B  GLY      3.4    11.0    -      -       -      +
     54B  GLN*     4.0     1.3    -      -       +      -
     42C  TRP*     3.4     4.0    -      -       -      -
     43C  PHE*     2.8    37.0    +      -       +      +
     55C  PHE*     3.7    29.2    -      -       +      -
     56C  SER*     1.3    76.6    -      -       -      +
     58C  LYS*     1.3    61.1    +      -       -      +
     59C  ILE*     4.2     0.7    -      -       -      +
     76C  PHE*     4.6     8.5    -      -       +      -
     78C  SER*     4.4    12.8    -      -       -      -
     80C  THR*     4.9     0.2    -      -       -      +
     81C  TYR*     3.5    32.8    -      -       +      -
     84C  VAL*     4.0    27.4    -      -       +      -
     91C  ILE*     4.2    21.7    -      -       +      +
     94C  THR*     4.3    10.3    -      -       +      -
    262C  THR*     4.5     0.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 58 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53B  GLY*     2.9    22.6    +      -       -      +
     41C  LYS      3.9    15.7    -      -       -      +
     42C  TRP*     3.4    35.9    -      -       +      +
     57C  LEU*     1.3    72.9    -      -       -      +
     59C  ILE*     1.3    62.0    +      -       -      +
     78C  SER*     3.1     8.6    -      -       -      -
     79C  THR*     2.8    58.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 59 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41C  LYS*     3.0    31.2    +      -       +      +
     42C  TRP      3.7     7.4    -      -       -      +
     43C  PHE*     3.6    32.8    -      -       +      +
     58C  LYS*     1.3    75.9    -      -       -      +
     60C  LYS*     1.3    64.8    +      -       -      +
     61C  LYS*     3.6    30.5    -      -       -      +
     62C  ILE*     3.9    23.1    -      -       +      +
     74C  LEU*     6.5     0.7    -      -       +      -
     76C  PHE*     3.9    20.4    -      -       +      -
     77C  GLU      3.6     4.9    -      -       -      +
     78C  SER*     4.3     1.1    -      -       -      +
     79C  THR*     3.9     6.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 60 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  LYS      3.8     2.4    +      -       -      -
     59C  ILE*     1.3    74.3    -      -       -      +
     61C  LYS*     1.3    66.7    +      -       +      +
     77C  GLU*     2.6    46.3    +      -       +      +
     78C  SER      4.1     6.8    +      -       -      +
     79C  THR*     3.7    42.7    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 61 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59C  ILE*     3.6     9.2    -      -       -      -
     60C  LYS*     1.3    83.9    -      -       +      +
     62C  ILE*     1.3    66.3    +      -       -      +
     63C  LEU*     3.7    26.2    -      -       +      -
     76C  PHE*     3.4     1.9    -      -       -      +
     77C  GLU*     2.8    44.1    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 62 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59C  ILE*     3.9    24.8    -      -       +      +
     61C  LYS*     1.3    80.0    -      -       -      +
     63C  LEU*     1.3    66.2    +      -       -      +
     64C  TYR*     3.9     5.4    -      -       -      +
     65C  GLU*     3.8    29.2    -      -       +      +
     74C  LEU*     3.7    26.2    -      -       +      -
     76C  PHE*     3.8     8.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 63 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61C  LYS*     3.6    34.1    +      -       +      +
     62C  ILE*     1.3    73.5    -      -       -      +
     64C  TYR*     1.3    65.2    +      -       -      +
     75C  VAL*     3.0    15.5    +      -       +      +
     76C  PHE      4.3     1.8    -      -       -      -
     77C  GLU*     4.1    20.2    -      -       +      +
     83C  LYS*     3.8    36.6    -      -       +      -
    158C  TYR*     3.3    36.1    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 64 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  ILE*     3.7     2.8    -      -       -      +
     63C  LEU*     1.3    80.0    -      -       -      +
     65C  GLU*     1.3    69.6    +      -       -      +
     66C  THR*     3.6    37.2    +      -       +      +
     73C  VAL*     4.8     3.6    -      -       +      -
     74C  LEU*     3.4     5.7    -      -       -      +
     75C  VAL*     2.8    43.4    +      -       +      +
    150C  THR*     4.9     4.3    -      -       +      +
    153C  GLU*     5.7     1.2    +      -       -      -
    154C  VAL*     3.5    32.5    -      -       +      -
    157C  ILE*     6.4     2.9    -      -       +      -
    158C  TYR*     3.7    29.4    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 65 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  ILE*     3.8    27.0    -      -       +      +
     64C  TYR*     1.3    85.7    -      -       -      +
     66C  THR*     1.3    66.0    +      -       -      +
     73C  VAL      3.4     6.6    -      -       -      +
     74C  LEU*     3.6    25.8    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 66 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  TYR*     3.6    33.7    +      -       +      +
     65C  GLU*     1.3    77.0    +      -       -      +
     67C  LYS*     1.3    70.9    +      -       -      +
     68C  SER*     5.1     0.2    -      -       -      -
     72C  ASN*     3.6     4.7    +      -       -      +
     73C  VAL*     2.9    49.3    +      -       +      +
    150C  THR*     3.9    16.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 67 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  THR*     1.3    82.2    +      -       -      +
     68C  SER*     1.3    67.3    +      -       -      +
     71C  GLN      4.0     3.1    -      -       -      +
     72C  ASN*     3.1    30.4    +      -       -      +
----------------------------------------------------------
 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