Contacts of the strand formed by residues 223 - 228 (chain C) in PDB entry 3Q29


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 223 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    119C  ASN*     4.3     2.4    +      -       -      +
    122C  LEU*     3.9     8.6    -      -       -      +
    146C  SER*     2.6    31.2    +      -       -      -
    147C  ALA      3.5     0.2    -      -       -      -
    148C  LEU      3.3    13.9    +      -       -      -
    149C  MET*     3.6    25.1    +      -       +      +
    217C  ALA*     3.9     2.7    -      -       +      -
    218C  PHE*     3.6    40.8    -      -       +      +
    221C  GLY      3.5     1.4    -      -       -      -
    222C  GLU*     1.3    81.3    +      -       -      +
    224C  ALA*     1.3    61.4    +      -       -      +
    225C  MET      3.6    15.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 224 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118C  TYR*     3.2     4.0    -      -       -      +
    119C  ASN*     2.7    30.7    +      -       -      +
    122C  LEU*     3.9    18.1    -      -       +      +
    123C  LEU*     3.9    25.7    -      -       +      +
    140C  LEU*     3.7    26.2    -      -       +      -
    146C  SER      2.8     8.7    +      -       -      +
    147C  ALA      3.6     7.6    -      -       -      +
    218C  PHE*     3.9     0.9    -      -       -      -
    223C  THR*     1.3    73.7    +      -       -      +
    225C  MET*     1.3    59.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with MET 225 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  LEU*     3.9    19.5    -      -       +      -
    117C  ILE      3.2     7.4    -      -       -      +
    118C  TYR*     3.7    11.0    -      -       +      -
    123C  LEU*     3.6    11.7    -      -       +      -
    127C  PRO*     3.5    35.0    -      -       +      -
    133C  ILE*     4.2    12.1    -      -       +      -
    136C  LEU*     4.1    14.1    -      -       +      -
    147C  ALA*     2.8    37.4    +      -       +      +
    148C  LEU*     3.4    20.8    -      -       +      -
    149C  MET      3.0    25.1    +      -       -      +
    218C  PHE*     3.9     5.6    -      -       -      -
    223C  THR*     3.4     6.7    -      -       -      +
    224C  ALA*     1.3    82.5    -      -       -      +
    226C  THR*     1.3    60.0    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 226 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116C  LEU*     3.9     3.3    -      -       -      +
    117C  ILE*     2.9    55.9    +      -       +      +
    148C  LEU*     4.1     2.9    -      -       -      -
    149C  MET      2.7    22.4    +      -       -      -
    150C  PHE*     4.0     4.7    -      -       -      +
    214C  ALA*     4.3     8.5    +      -       -      +
    215C  GLU*     5.2     1.8    +      -       -      -
    218C  PHE*     3.9    31.4    -      -       +      -
    225C  MET*     1.3    73.2    -      -       -      +
    227C  ILE*     1.3    76.9    +      -       -      +
    228C  ASN*     4.7     9.9    +      -       +      +
    236C  ILE*     5.3     2.0    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 227 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114C  LEU*     4.0    28.9    -      -       +      -
    115C  SER      3.6     9.2    -      -       -      +
    116C  LEU*     4.4     7.2    -      -       +      -
    130C  TRP*     3.7    34.8    -      -       +      -
    148C  LEU*     4.2    11.4    -      -       +      -
    150C  PHE*     3.6    34.4    -      -       +      +
    151C  ASN      5.1     0.3    +      -       -      -
    157C  PHE*     3.4    28.5    -      -       +      +
    160C  PRO*     5.3     2.5    -      -       +      -
    226C  THR*     1.3    83.0    +      -       -      +
    228C  ASN*     1.3    66.9    +      -       -      +
    248C  LEU*     4.2    19.5    -      -       +      -
    249C  PRO*     5.7     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 228 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114C  LEU*     3.5    11.9    -      -       -      -
    115C  SER*     3.1    30.6    +      -       -      +
    117C  ILE*     4.0    17.9    -      -       +      +
    157C  PHE*     3.9     2.9    -      -       -      -
    211C  TYR*     3.3    34.3    +      -       -      -
    215C  GLU*     5.3     8.5    -      -       -      +
    226C  THR*     4.1    11.6    +      -       +      +
    227C  ILE*     1.3    77.6    +      -       -      +
    229C  GLY*     1.3    61.5    +      -       -      +
    231C  TRP*     2.9    30.1    +      -       -      -
    232C  ALA*     3.5    22.4    -      -       +      +
    233C  TRP*     5.1     0.3    +      -       -      -
----------------------------------------------------------
 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