Contacts of the strand formed by residues 227 - 234 (chain B) in PDB entry 3ORH


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 227 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12A  PRO*     3.6    29.3    -      -       +      +
    185B  ILE*     3.4    21.1    +      -       +      +
    211B  VAL*     3.7    21.4    -      -       +      +
    212B  MET      3.3    13.0    -      -       -      +
    213B  ALA*     4.7     5.4    -      -       +      -
    214B  LEU      4.2     0.9    -      -       -      -
    223B  TYR*     2.7    28.9    +      -       -      -
    225B  PHE*     3.2    27.1    +      -       +      -
    226B  PRO*     1.3    83.8    -      -       -      +
    228B  MET*     1.3    62.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 228 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45B  TRP*     4.4     8.5    -      -       +      -
     46B  GLU*     5.8     0.2    -      -       +      -
     49B  TYR*     3.4    39.9    -      -       +      -
    171B  LEU*     3.6    33.9    -      -       +      -
    174B  TRP*     6.4     0.7    -      -       +      -
    185B  ILE*     3.9     4.5    -      -       -      -
    210B  GLU      3.8     0.2    -      -       -      +
    211B  VAL*     3.4     6.2    -      -       -      +
    212B  MET*     2.9    39.1    +      -       +      +
    214B  LEU*     3.8    40.2    -      -       +      +
    223B  TYR*     3.5    25.8    -      -       +      +
    227B  GLN*     1.3    84.7    -      -       -      +
    229B  ILE*     1.3    61.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 229 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  TYR*     2.7    28.1    +      -       -      -
    174B  TRP*     3.6    27.5    -      -       +      -
    185B  ILE*     3.8    44.5    -      -       +      +
    186B  THR*     3.9    17.7    -      -       -      +
    188B  MET*     6.0     1.3    -      -       -      -
    189B  PHE*     3.9    27.8    -      -       +      -
    209B  THR*     2.6    37.0    -      -       +      +
    210B  GLU      3.4     5.4    -      -       -      +
    211B  VAL*     4.1     7.2    -      -       +      -
    228B  MET*     1.3    76.2    -      -       -      +
    230B  THR*     1.3    58.0    +      -       -      +
    231B  PRO*     3.7     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 230 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  TYR*     3.3    20.1    -      -       -      -
     52B  ALA*     3.5    32.8    -      -       -      +
     53B  LEU*     3.9     9.4    -      -       +      +
     56B  ALA*     4.4     2.9    -      -       +      -
    167B  THR*     3.8    16.2    -      -       -      +
    209B  THR*     3.3     6.5    -      -       -      -
    210B  GLU*     2.8    56.8    +      -       -      +
    212B  MET*     5.2     2.9    -      -       -      +
    229B  ILE*     1.3    70.5    -      -       -      +
    231B  PRO*     1.4    67.4    -      -       -      +
    232B  LEU*     3.7     6.6    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with PRO 231 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53B  LEU*     4.2     2.5    -      -       +      -
    166B  LEU      4.3     0.4    -      -       -      -
    167B  THR*     2.7    36.4    +      -       -      +
    168B  TYR*     3.2    52.3    -      -       +      +
    174B  TRP*     4.3     2.7    -      -       +      -
    189B  PHE*     3.6    32.1    -      -       +      -
    208B  ARG      3.6     6.5    -      -       -      +
    209B  THR*     4.5     3.4    -      -       -      +
    229B  ILE      3.7     7.0    -      -       -      +
    230B  THR*     1.4    85.0    -      -       +      +
    232B  LEU*     1.3    62.9    +      -       -      +
    233B  VAL*     4.1     8.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 232 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56B  ALA*     3.8    27.6    -      -       +      -
     59B  SER*     5.4     4.0    -      -       -      +
    165B  VAL*     4.4    13.2    -      -       +      -
    166B  LEU      3.7     2.9    -      -       -      -
    206B  ASN      3.6     3.6    -      -       -      +
    207B  ILE*     3.7     0.3    -      -       -      -
    208B  ARG*     2.9    47.9    +      -       +      +
    210B  GLU*     3.5    40.6    -      -       +      +
    230B  THR*     3.7    15.5    -      -       +      +
    231B  PRO*     1.3    74.4    -      -       -      +
    233B  VAL*     1.3    60.2    +      -       -      +
    234B  THR*     4.0     4.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 233 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    160B  LEU*     4.5     0.2    -      -       -      +
    164B  GLY      3.8     0.7    -      -       -      +
    165B  VAL*     3.6     2.2    -      -       -      +
    166B  LEU*     2.7    57.6    +      -       +      +
    168B  TYR*     4.8     2.2    -      -       +      -
    197B  LEU*     3.7    30.7    -      -       +      -
    202B  PHE*     3.4    47.4    -      -       +      -
    206B  ASN      3.4     3.1    -      -       -      -
    207B  ILE*     4.1    15.7    -      -       +      -
    231B  PRO*     4.3     9.4    -      -       +      -
    232B  LEU*     1.3    79.7    -      -       -      +
    234B  THR*     1.3    60.6    +      -       -      +
    235B  LYS      4.1     0.5    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 234 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    163B  GLY*     3.7    22.9    -      -       -      +
    164B  GLY      3.3     4.3    +      -       -      +
    165B  VAL*     4.5    10.2    -      -       -      +
    202B  PHE*     3.5    13.7    -      -       -      -
    206B  ASN*     2.9    44.2    +      -       -      +
    232B  LEU*     4.9     3.1    +      -       -      +
    233B  VAL*     1.3    75.2    +      -       -      +
    235B  LYS*     1.3    74.7    +      -       -      +
    236B  GLY      3.7     0.9    +      -       -      -
----------------------------------------------------------
 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