Contacts of the strand formed by residues 218 - 226 (chain B) in PDB entry 3HO5


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 218 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    589A  LEU*     4.8     0.4    -      -       -      -
    217B  PHE*     1.3    79.8    -      -       -      +
    219B  ILE*     1.3    61.9    +      -       -      +
    537B  LEU*     4.3     1.5    -      -       -      +
    538B  GLY      4.0     2.5    -      -       -      -
    540B  SER*     3.9    16.2    -      -       -      -
    543B  CYS*     2.1    60.1    -      -       -      -
    544B  ARG      4.0     3.6    -      -       -      -
    582B  ILE*     3.3     7.4    -      -       -      +
    583B  VAL*     2.6    46.6    +      -       +      +
    585B  PRO*     3.9    10.5    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 219 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    218B  CYS*     1.3    76.0    -      -       -      +
    220B  GLN*     1.3    60.9    +      -       -      +
    518B  PHE*     5.7     1.1    -      -       +      -
    537B  LEU*     3.5    30.1    -      -       +      -
    543B  CYS*     3.7     3.9    -      -       -      -
    544B  ARG*     3.0    37.3    +      -       -      +
    546B  TYR      3.1    26.3    -      -       -      +
    547B  PHE*     3.5    31.6    -      -       +      -
    564B  ILE*     4.2    15.7    -      -       +      -
    580B  TYR*     4.4    13.0    -      -       +      -
    581B  LYS      3.2    13.9    -      -       -      +
    582B  ILE*     4.0    17.9    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 220 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  GLN*     3.5    30.6    -      -       -      +
    221A  GLU      4.9     4.8    +      -       -      -
    542A  SER*     3.3    24.0    -      -       -      +
    589A  LEU*     4.6     5.4    -      -       -      +
    219B  ILE*     1.3    75.6    +      -       -      +
    221B  GLU*     1.3    69.4    +      -       -      +
    222B  VAL*     3.4     2.4    +      -       -      +
    542B  SER*     2.9    32.3    +      -       -      -
    543B  CYS*     3.2    28.9    +      -       -      +
    580B  TYR*     3.4     4.5    -      -       -      -
    581B  LYS*     2.8    40.9    +      -       +      +
    583B  VAL*     4.5    10.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 221 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220A  GLN*     4.7     4.0    +      -       -      -
    542A  SER*     4.0     8.8    +      -       -      +
    220B  GLN*     1.3    78.0    +      -       -      +
    222B  VAL*     1.3    62.2    +      -       -      +
    223B  VAL*     4.2    10.1    +      -       -      +
    224B  SER*     3.7    22.5    +      -       -      -
    578B  LYS*     3.4    29.8    +      -       +      -
    579B  LEU      4.2     1.3    -      -       -      +
    580B  TYR*     3.5    30.0    +      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 222 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    542A  SER*     3.7    16.6    -      -       -      -
    544A  ARG*     3.7    36.5    +      -       -      +
    220B  GLN      3.6    13.7    -      -       -      +
    221B  GLU*     1.3    74.2    -      -       -      +
    223B  VAL*     1.3    66.1    +      -       +      +
    254B  LEU*     3.8    24.2    -      -       +      -
    258B  GLY      5.4     0.2    -      -       -      +
    563B  TYR*     3.9    12.3    -      -       +      +
    579B  LEU*     2.8    19.1    +      -       +      +
    580B  TYR      4.3     0.2    -      -       -      -
    581B  LYS*     3.7    27.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 223 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221B  GLU*     3.8     5.9    -      -       -      +
    222B  VAL*     1.3    87.8    -      -       +      +
    224B  SER*     1.3    77.0    +      -       -      +
    226B  LEU*     3.8    24.5    -      -       +      -
    244B  ILE*     6.1     0.7    -      -       +      -
    254B  LEU*     3.8    33.4    -      -       +      -
    258B  GLY      4.5     5.8    -      -       -      +
    260B  ILE*     4.0    20.6    -      -       +      -
    578B  LYS*     3.3     4.5    -      -       -      +
    579B  LEU*     2.8    37.3    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 224 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    221B  GLU*     3.7    13.9    +      -       -      -
    223B  VAL*     1.3    88.4    -      -       -      +
    225B  GLY*     1.3    61.2    +      -       -      +
    226B  LEU*     3.0    12.1    +      -       -      +
    576B  ASN*     3.4    15.1    +      -       -      -
    577B  GLY      3.3     7.2    -      -       -      -
    578B  LYS*     3.6    17.7    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 225 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224B  SER*     1.3    79.8    +      -       -      +
    226B  LEU*     1.3    63.5    +      -       -      +
    227B  ARG*     3.9     1.4    +      -       -      +
    252B  LYS*     4.4     8.2    +      -       -      -
    575B  HIS*     3.4    23.5    -      -       -      +
    576B  ASN*     3.2    10.1    +      -       -      -
    577B  GLY      3.4     0.8    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 226 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    223B  VAL*     3.8    20.4    -      -       +      -
    224B  SER      3.0     9.1    +      -       -      +
    225B  GLY*     1.3    79.1    -      -       -      +
    227B  ARG*     1.3    59.9    +      -       -      +
    229B  PRO*     4.4     7.0    -      -       +      -
    244B  ILE*     3.1    46.2    -      -       +      -
    246B  GLU*     3.6    13.7    -      -       -      +
    252B  LYS*     4.5    13.5    -      -       +      +
    260B  ILE*     4.6     4.5    -      -       +      -
    571B  MET      4.7     0.2    -      -       -      +
    576B  ASN      3.1    10.4    +      -       -      -
    577B  GLY*     2.5    46.1    +      -       -      +
    578B  LYS      3.9     4.7    -      -       -      +
    579B  LEU*     3.8    24.0    -      -       +      +
----------------------------------------------------------
 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