Contacts of the strand formed by residues 19 - 28 (chain B) in PDB entry 1YBY


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 19 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12B  THR*     4.5     4.3    -      -       -      -
     13B  PHE      3.4     4.0    -      -       -      +
     14B  GLU*     3.8    26.7    -      -       +      +
     17B  GLY      5.7     1.3    -      -       -      +
     18B  GLN*     1.3    80.4    -      -       -      +
     20B  PHE*     1.3    68.1    +      -       -      +
     43B  ASN*     3.8     8.1    +      -       -      +
     44B  ILE*     3.1    39.8    +      -       +      -
     45B  VAL*     4.4    11.1    +      -       +      +
     63B  ALA*     3.5    26.7    -      -       +      -
     64B  HIS      5.6     0.2    -      -       -      +
     65B  ILE*     4.8     2.2    -      -       +      -
    116B  HIS*     3.4    39.7    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 20 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     11B  VAL      3.9     0.2    -      -       -      +
     12B  THR*     3.2     7.1    -      -       -      -
     13B  PHE*     3.0    53.9    +      +       +      -
     15B  LEU*     3.5    50.3    -      -       +      -
     16B  ASP*     5.3     4.9    -      -       +      -
     18B  GLN*     4.6     4.5    -      -       -      -
     19B  ILE*     1.3    75.0    -      -       -      +
     21B  GLN*     1.3    59.2    +      -       -      +
     41B  LEU*     3.9    22.2    -      -       +      -
     42B  LYS      3.2     4.7    -      -       -      -
     43B  ASN*     3.8    43.1    -      -       +      -
     44B  ILE*     4.3     3.8    -      -       -      -
     48B  ALA      5.6     0.2    -      -       -      -
     50B  ILE*     4.1    22.4    -      -       +      -
     52B  LYS*     5.7     2.9    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 21 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10B  GLY*     3.5    38.3    +      -       -      +
     11B  VAL      3.4     3.4    -      -       -      -
     12B  THR*     3.9     5.2    -      -       +      -
     20B  PHE*     1.3    75.1    -      -       -      +
     22B  VAL*     1.3    70.4    +      -       -      +
     23B  ILE*     3.2     5.1    +      -       -      +
     41B  LEU*     3.3     5.4    -      -       -      -
     42B  LYS*     2.7    49.2    +      -       +      +
     44B  ILE*     3.6    21.5    -      -       +      +
    114B  LEU*     6.1     0.2    -      -       -      +
    121B  PHE*     3.4    37.0    +      -       -      +
    122B  GLY*     5.1     3.2    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 22 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7B  PHE*     4.1    15.5    -      -       +      -
      8B  LYS      3.8    13.5    -      -       -      +
      9B  ASN*     4.3     1.7    -      -       -      +
     10B  GLY*     2.8    27.7    +      -       -      -
     11B  VAL*     3.1    30.9    +      -       +      +
     13B  PHE*     3.9    20.0    -      -       +      -
     21B  GLN*     1.3    74.5    -      -       -      +
     23B  ILE*     1.3    62.5    +      -       -      +
     24B  GLU      4.0    12.1    -      -       -      +
     25B  PHE*     3.6    33.4    -      -       +      -
     39B  THR*     5.0     0.7    -      -       -      -
     40B  LYS      3.9     3.4    -      -       -      +
     41B  LEU*     4.0     9.2    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 23 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9B  ASN*     3.2    24.3    +      -       -      +
     21B  GLN*     4.0     3.8    -      -       -      +
     22B  VAL*     1.3    72.5    -      -       -      +
     24B  GLU*     1.3    67.6    +      -       +      +
     40B  LYS*     2.8    31.0    +      -       +      +
     41B  LEU      3.8     4.0    -      -       -      +
     42B  LYS*     3.7    43.1    -      -       +      +
     49B  THR*     3.8    18.2    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 24 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  THR*     2.5    34.9    +      -       -      +
    147A  GLY*     3.5    15.7    +      -       -      -
      9B  ASN*     3.6    12.3    -      -       -      +
     22B  VAL*     4.0     1.1    -      -       -      +
     23B  ILE*     1.3    83.4    -      -       +      +
     25B  PHE*     1.3    66.1    +      -       -      +
     39B  THR*     3.4     1.2    -      -       -      -
     40B  LYS*     2.7    61.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 25 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  THR*     3.4    15.4    +      -       -      +
      4B  ALA      5.5     1.1    -      -       -      -
      7B  PHE*     3.2    41.1    -      -       +      -
      8B  LYS*     3.9     4.5    -      -       +      -
      9B  ASN*     3.7    24.4    +      -       -      -
     22B  VAL*     3.6    19.1    -      -       +      -
     24B  GLU*     1.3    77.9    -      -       -      +
     26B  GLN*     1.3    61.7    +      -       -      +
     27B  HIS*     3.9    23.8    -      -       +      -
     37B  VAL*     3.9    13.0    -      -       +      -
     38B  ARG      3.0    13.7    -      -       -      +
     39B  THR*     3.9    15.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 26 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  THR*     3.4    19.2    +      -       -      +
    145A  ALA      3.0    17.3    +      -       -      +
    146A  THR      3.8     5.8    -      -       -      +
    147A  GLY      2.8    27.5    +      -       -      +
    148A  ALA*     4.9     3.2    -      -       +      +
    164A  LEU*     4.8     7.1    -      -       -      +
     25B  PHE*     1.3    81.3    -      -       -      +
     27B  HIS*     1.3    62.0    +      -       -      +
     28B  VAL*     3.5    14.8    +      -       +      +
     36B  PHE      3.8     0.2    -      -       -      +
     37B  VAL*     3.4     1.2    -      -       -      -
     38B  ARG*     2.8    62.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 27 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  ALA      5.1     0.2    +      -       -      -
      5B  GLY*     4.0    22.6    +      -       -      -
     25B  PHE*     3.9    19.0    -      -       +      -
     26B  GLN*     1.3    71.2    -      -       -      +
     28B  VAL*     1.3    70.3    +      -       -      +
     29B  LYS*     3.9    22.9    +      -       +      +
     35B  ALA*     4.4     2.0    -      -       -      +
     36B  PHE      3.7     9.9    -      -       -      -
     37B  VAL*     4.0    14.5    -      -       +      +
     56B  PRO*     3.6    31.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 28 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26B  GLN*     4.0    17.3    -      -       +      +
     27B  HIS*     1.3    74.6    -      -       -      +
     29B  LYS*     1.3    64.4    +      -       -      +
     30B  PRO*     3.3    13.9    -      -       +      +
     35B  ALA*     3.3     7.6    -      -       -      +
     36B  PHE*     2.9    72.2    +      -       +      +
     38B  ARG*     4.0    17.5    -      -       -      +
----------------------------------------------------------
 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