Contacts of the strand formed by residues 228 - 235 (chain O) in PDB entry 3K9Q


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 LEU 228 (chain O).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    156O  LEU*     4.3    20.0    -      -       +      -
    160O  ALA*     4.0    25.8    -      -       +      -
    169O  LEU*     4.0    20.2    -      -       +      -
    172O  GLY*     3.4    26.2    -      -       -      +
    214O  ALA*     3.3    29.4    +      -       +      +
    215O  LYS*     3.7     7.4    -      -       -      +
    217O  ILE*     4.0    20.1    -      -       +      +
    224O  ILE*     4.2     5.7    +      -       +      -
    226O  GLY*     4.4     5.5    -      -       -      -
    227O  LYS*     1.3    84.4    -      -       -      +
    229O  ASP*     1.3    65.0    +      -       -      +
    245O  LEU*     3.9    16.4    -      -       +      -
    247O  VAL*     4.6     0.9    -      -       +      -
    300P  MET*     3.3     6.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 229 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172O  GLY      3.4     1.8    +      -       -      -
    173O  LEU*     3.2    16.0    -      -       +      +
    174O  MET*     2.9    24.1    +      -       -      +
    211O  THR      5.1     1.2    -      -       -      +
    214O  ALA*     3.5    11.7    -      -       -      -
    215O  LYS*     3.3    45.0    +      -       +      +
    228O  LEU*     1.3    77.0    -      -       -      +
    230O  GLY*     1.3    81.2    +      -       -      +
    298P  ARG*     4.4    17.8    +      -       -      +
    299P  VAL      5.7     1.0    -      -       -      +
    300P  MET*     3.2    20.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 230 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    173O  LEU*     4.6     3.1    -      -       -      -
    174O  MET*     3.1    23.3    -      -       -      -
    210O  SER*     5.5     0.5    -      -       -      -
    211O  THR      3.9    14.6    +      -       -      +
    214O  ALA*     3.9     2.0    -      -       -      +
    229O  ASP*     1.3    94.9    +      -       -      +
    231O  GLY*     1.3    57.2    +      -       -      -
    298P  ARG*     4.7    14.9    +      -       -      -
    309P  LYS*     4.5     4.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 231 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174O  MET*     3.1     9.5    +      -       -      +
    175O  THR*     3.3     8.9    -      -       -      -
    176O  THR*     2.9    25.6    +      -       -      +
    209O  ASN      3.8     7.9    -      -       -      -
    210O  SER*     4.9     1.6    -      -       -      -
    211O  THR*     3.9    12.8    -      -       -      -
    230O  GLY*     1.3    73.5    -      -       -      -
    232O  ALA*     1.3    60.7    +      -       -      -
    298P  ARG*     5.6     4.7    -      -       -      -
    309P  LYS*     4.6     2.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 232 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175O  THR*     4.8     0.4    -      -       -      -
    176O  THR*     3.3    26.2    -      -       +      +
    178O  HIS*     4.8     6.7    -      -       +      -
    208O  PRO*     3.3     4.5    -      -       -      +
    209O  ASN*     2.8    45.7    +      -       +      +
    210O  SER      4.8     1.6    -      -       -      +
    211O  THR*     4.3     9.9    -      -       +      -
    231O  GLY*     1.3    75.6    -      -       -      -
    233O  GLN*     1.3    71.6    +      -       -      +
    234O  ARG*     4.1     7.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 233 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175O  THR*     4.1     7.9    -      -       +      -
    176O  THR      2.9     8.0    +      -       -      +
    177O  ILE*     3.5     6.2    -      -       -      -
    178O  HIS*     2.9    24.2    +      -       -      -
    206O  ILE*     3.7    15.3    -      -       +      +
    207O  ILE      3.4     2.3    -      -       -      -
    208O  PRO*     3.2    28.2    -      -       -      +
    232O  ALA*     1.3    81.9    +      -       -      +
    234O  ARG*     1.3    64.4    +      -       -      +
    235O  VAL*     3.6     6.8    +      -       +      +
    177P  ILE*     4.0    20.4    -      -       +      -
    242P  LEU*     3.3    22.3    -      -       -      +
    244P  GLU*     2.9    27.3    +      -       -      +
    296P  GLN*     3.4    13.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 234 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178O  HIS*     3.2    32.3    +      -       -      +
    179O  ALA      3.4    15.0    -      -       -      -
    180O  TYR*     4.7     2.2    -      -       -      -
    181O  THR*     3.1    27.1    +      -       -      +
    183O  ASP*     5.4     0.6    -      -       -      +
    184O  GLN*     2.6    58.2    +      -       -      +
    198O  ARG*     4.8    10.6    -      -       +      +
    202O  ALA      5.7     0.4    -      -       -      -
    205O  ASN      3.4     4.4    -      -       -      +
    207O  ILE*     2.7    43.4    +      -       +      +
    209O  ASN*     4.5    20.9    +      -       +      +
    232O  ALA*     5.0     7.3    -      -       +      +
    233O  GLN*     1.3    71.8    -      -       -      +
    235O  VAL*     1.3    59.9    +      -       -      +
    338O   CL      3.9    14.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 235 (chain O). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177O  ILE*     3.8    27.8    -      -       +      -
    178O  HIS      2.9    13.9    +      -       -      +
    179O  ALA*     3.9     0.2    -      -       -      -
    180O  TYR*     3.5    12.4    +      -       -      -
    202O  ALA      4.6     2.2    -      -       -      -
    205O  ASN      3.9     0.9    -      -       -      -
    206O  ILE*     4.2     9.6    -      -       +      -
    233O  GLN*     3.9    11.4    -      -       +      +
    234O  ARG*     1.3    78.7    -      -       -      +
    236O  PRO*     1.4    71.4    -      -       +      +
    237O  VAL*     2.8    22.4    +      -       +      +
    177P  ILE*     4.0    19.7    -      -       +      -
    206P  ILE*     3.9    21.3    -      -       +      -
    235P  VAL*     4.0    15.0    -      -       +      -
    236P  PRO*     4.8     0.9    -      -       +      -
----------------------------------------------------------
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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