Contacts of the strand formed by residues 51 - 58 (chain R) in PDB entry 1QTY


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 51 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32R  LEU*     4.5    10.3    -      -       -      +
     33R  VAL      3.0    22.2    -      -       -      +
     34R  ASP*     3.9     9.0    -      -       -      +
     35R  ILE*     3.8     1.1    -      -       -      -
     49R  PRO*     3.3    13.5    -      -       -      +
     50R  SER*     1.3    78.4    -      -       -      +
     52R  VAL*     1.3    65.5    +      -       -      +
     24S  SER*     3.2    27.4    -      -       -      -
     59S  GLY*     3.7     7.9    -      -       -      -
     60S  CYS*     2.0    58.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 52 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31R  THR      3.6     0.3    -      -       -      +
     32R  LEU*     3.4     6.9    -      -       -      -
     33R  VAL*     2.7    48.6    +      -       +      +
     35R  ILE*     3.6    20.4    -      -       +      -
     49R  PRO*     4.7     0.4    -      -       +      -
     51R  CYS*     1.3    81.2    -      -       -      +
     53R  PRO*     1.3    67.5    -      -       +      +
     54R  LEU*     3.6    25.4    +      -       +      -
     78R  MET*     3.8     9.6    -      -       -      -
     80R  ILE*     3.8     7.6    -      -       +      -
     96R  PHE*     3.9    22.9    -      -       +      -
     20S  VAL*     3.5    24.2    -      -       +      -
     24S  SER*     4.1     0.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 53 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30R  GLU*     3.7    22.9    -      -       -      +
     31R  THR      3.5     6.7    -      -       -      +
     32R  LEU*     3.6    17.0    -      -       +      -
     52R  VAL*     1.3    89.8    -      -       +      +
     54R  LEU*     1.3    60.0    +      -       -      +
     78R  MET*     3.2    24.1    -      -       +      +
     98R  GLN*     4.9     1.4    -      -       -      +
     15S  VAL*     6.5     0.2    -      -       +      -
     20S  VAL*     4.2    10.3    -      -       +      +
     23S  ARG*     3.8    42.5    +      -       +      +
     24S  SER*     4.2    10.1    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 54 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30R  GLU*     4.4     3.3    -      -       -      +
     31R  THR*     2.7    43.7    +      -       -      +
     33R  VAL*     3.5    34.8    -      -       +      -
     38R  GLU*     4.6     0.2    -      -       -      +
     52R  VAL*     3.8    15.0    -      -       +      -
     53R  PRO*     1.3    80.4    -      -       -      +
     55R  MET*     1.3    60.7    +      -       -      +
     56R  ARG*     3.4    29.2    +      -       -      +
     76R  ILE*     3.8     9.2    -      -       +      -
     78R  MET*     3.8    17.0    -      -       +      -
     96R  PHE*     3.3    37.7    -      -       +      -
     97R  LEU      4.2     4.0    -      -       -      +
     98R  GLN*     4.2     4.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 55 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28R  PRO*     3.8    26.9    -      -       +      +
     29R  ILE      3.8     2.5    -      -       -      +
     30R  GLU*     4.0    26.9    -      -       -      +
     54R  LEU*     1.3    72.5    -      -       -      +
     56R  ARG*     1.3    71.9    +      -       -      +
     98R  GLN*     3.4    29.2    +      -       -      +
     99R  HIS      2.9    33.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 56 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28R  PRO*     4.1     3.8    -      -       -      -
     29R  ILE*     2.8    33.2    +      -       -      +
     31R  THR*     3.4    26.0    -      -       +      +
     33R  VAL*     4.4    12.8    -      -       +      +
     37R  GLN*     4.8     6.3    -      -       -      +
     38R  GLU*     2.5    39.8    +      -       -      -
     54R  LEU*     3.4    14.7    +      -       -      +
     55R  MET*     1.3    94.7    -      -       -      +
     57R  CYS*     1.3    66.6    +      -       -      +
     58R  GLY      3.4     0.2    +      -       -      -
     97R  LEU*     2.7    39.6    +      -       -      +
     99R  HIS*     3.7    29.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with CYS 57 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31R  THR*     5.0     1.6    +      -       -      -
     56R  ARG*     1.3    79.5    -      -       -      +
     58R  GLY*     1.3    58.9    +      -       -      +
     68R  CYS*     4.0    18.6    -      -       -      +
     69R  VAL*     3.5     1.8    -      -       -      -
     70R  PRO*     3.3    31.0    -      -       +      -
     99R  HIS*     2.9    25.8    +      -       +      +
    102R  CYS*     2.0    51.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 58 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26R  CYS*     3.4     2.1    -      -       -      -
     27R  HIS*     2.9    35.6    +      -       -      +
     29R  ILE*     4.1    13.5    -      -       -      -
     56R  ARG      3.4     0.6    +      -       -      -
     57R  CYS*     1.3    76.9    -      -       -      +
     59R  GLY*     1.3    61.6    +      -       -      -
     68R  CYS*     3.8     5.6    -      -       -      -
     32S  LEU*     4.0     6.5    -      -       -      -
----------------------------------------------------------
 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