Contacts of the strand formed by residues 36 - 43 (chain D) in PDB entry 3RIK


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 THR 36 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32D  PRO*     3.1    22.1    -      -       -      +
     33D  ALA*     2.8    34.2    +      -       +      +
     34D  LEU      4.5     2.5    -      -       -      +
     35D  GLY*     1.3    81.2    +      -       -      +
     37D  PHE*     1.3    59.4    +      -       -      +
     53D  MET*     3.9    23.9    -      -       +      +
     54D  GLY      3.4    13.5    -      -       -      +
     55D  PRO*     5.2     2.2    -      -       +      -
     56D  ILE*     3.5    13.0    -      -       -      +
    494D  TRP*     3.6     9.2    -      -       -      +
    495D  HIS      4.8     1.6    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 37 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     32D  PRO*     4.2     4.7    -      -       -      -
     36D  THR*     1.3    74.1    -      -       -      +
     38D  SER*     1.3    71.9    +      -       -      +
     39D  ARG*     3.8    39.3    -      -       +      -
     53D  MET*     3.1     7.4    -      -       -      +
     54D  GLY*     2.9    64.7    +      -       -      -
     55D  PRO*     3.2    28.3    -      -       +      -
     56D  ILE*     4.0     4.7    -      -       +      -
    480D  LEU*     3.5    39.9    -      -       +      -
    481D  GLU      4.4    11.4    -      -       -      -
    492D  TYR*     3.9    10.5    -      +       -      -
    493D  LEU      3.3    13.0    -      -       -      +
    494D  TRP*     4.1     7.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 38 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30D  THR      4.8     3.6    +      -       -      -
     32D  PRO*     3.2    28.2    -      -       -      +
     37D  PHE*     1.3    77.5    -      -       -      +
     39D  ARG*     1.3    60.5    +      -       -      +
     40D  TYR*     4.6     1.6    -      -       -      -
     51D  LEU*     4.3    15.1    -      -       -      +
     52D  SER      3.4     7.2    -      -       -      -
     53D  MET*     4.4     4.1    -      -       -      +
    491D  THR      4.4     0.2    -      -       -      -
    492D  TYR*     3.2     5.7    -      -       -      -
    493D  LEU*     2.8    52.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 39 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37D  PHE*     3.8    25.4    -      -       +      -
     38D  SER*     1.3    74.8    -      -       -      +
     40D  TYR*     1.3    72.1    +      -       -      +
     41D  GLU*     4.2    14.8    -      -       -      -
     50D  GLU      3.2     2.4    -      -       -      +
     51D  LEU*     3.5     3.5    -      -       -      +
     52D  SER*     2.7    64.9    +      -       -      +
     53D  MET      4.9     3.6    +      -       -      +
    481D  GLU      4.6     1.2    +      -       -      -
    482D  THR*     2.9    28.5    +      -       -      +
    490D  HIS*     4.0    19.7    +      -       +      +
    491D  THR      3.4     4.3    -      -       -      +
    492D  TYR*     3.5    30.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 40 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26D  PHE*     4.2    21.5    -      +       -      -
     29D  PRO*     6.0     1.7    -      -       -      +
     30D  THR      5.3     5.9    +      -       -      -
     38D  SER*     4.6     2.5    -      -       -      -
     39D  ARG*     1.3    76.6    -      -       -      +
     41D  GLU*     1.3    60.3    +      -       -      +
     49D  MET*     3.6    22.2    -      -       +      -
     50D  GLU      3.2     6.3    -      -       -      -
     51D  LEU*     3.5    39.8    -      -       +      +
    422D  HIS*     3.3    11.9    -      -       +      -
    425D  LYS*     4.9     3.9    -      -       -      -
    426D  PHE*     3.3    49.6    -      +       +      -
    490D  HIS*     3.1     7.8    -      -       -      +
    491D  THR*     2.8    36.9    +      -       -      +
    493D  LEU*     3.7    20.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 41 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39D  ARG*     4.2    13.2    -      -       -      -
     40D  TYR*     1.3    73.9    -      -       -      +
     42D  SER*     1.3    62.9    +      -       -      +
     43D  THR*     4.1    12.7    -      -       +      +
     47D  ARG*     3.1    37.7    +      -       -      +
     48D  ARG      3.8     1.4    -      -       -      -
     49D  MET      3.1     3.9    +      -       -      -
     50D  GLU*     2.9    38.3    +      -       +      +
     52D  SER*     5.8     0.4    -      -       -      +
    422D  HIS*     4.1     0.4    -      -       -      -
    485D  PRO*     3.6    17.5    -      -       -      +
    489D  ILE      3.6     2.9    -      -       -      -
    490D  HIS*     2.9    34.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 42 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41D  GLU*     1.3    70.5    -      -       -      +
     43D  THR*     1.3    63.6    +      -       -      +
     47D  ARG      3.1     9.2    -      -       -      -
     48D  ARG*     3.6     2.1    -      -       -      -
     49D  MET*     2.7    29.1    +      -       -      +
    357D  TRP*     3.6    12.6    -      -       -      -
    418D  TYR*     4.1     9.0    -      -       -      +
    422D  HIS*     2.9    23.3    +      -       -      -
    488D  SER*     3.2     6.4    -      -       -      -
    489D  ILE*     2.9    41.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 43 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41D  GLU*     4.1    20.6    -      -       +      +
     42D  SER*     1.3    79.9    -      -       -      +
     44D  ARG*     1.3    66.4    +      -       -      +
     45D  SER*     2.9    23.3    +      -       -      +
     46D  GLY      2.8    12.3    +      -       -      -
     47D  ARG*     2.7    52.8    +      -       +      +
     48D  ARG*     2.8    17.2    +      -       -      -
    357D  TRP*     3.4     6.3    -      -       -      -
    485D  PRO*     5.0     7.0    -      -       +      -
    486D  GLY      6.0     0.2    -      -       -      +
    487D  TYR      3.8     5.8    -      -       -      +
    488D  SER*     4.2    10.1    -      -       -      -
----------------------------------------------------------
 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