Contacts of the strand formed by residues 228 - 235 (chain R) 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 R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    300Q  MET*     3.4     5.8    -      -       -      +
    156R  LEU*     4.3    19.5    -      -       +      -
    160R  ALA*     4.0    26.0    -      -       +      -
    169R  LEU*     3.9    20.2    -      -       +      -
    172R  GLY*     3.6    33.0    -      -       -      +
    214R  ALA*     3.3    31.1    +      -       +      +
    215R  LYS*     3.6     8.3    -      -       -      +
    217R  ILE*     3.9    19.9    -      -       +      +
    224R  ILE*     4.1     6.1    +      -       +      -
    226R  GLY*     3.4     5.3    -      -       -      +
    227R  LYS*     1.3    80.7    -      -       -      +
    229R  ASP*     1.3    64.9    +      -       -      +
    245R  LEU*     3.9    15.9    -      -       +      -
    247R  VAL*     4.5     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 229 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298Q  ARG*     5.6     8.3    -      -       -      +
    299Q  VAL      5.8     0.3    -      -       -      +
    300Q  MET*     3.0    27.5    -      -       +      +
    172R  GLY      3.4     2.8    +      -       -      -
    173R  LEU*     3.3    15.1    -      -       +      -
    174R  MET*     2.9    21.5    +      -       -      +
    211R  THR      5.1     1.4    -      -       -      +
    214R  ALA*     3.5    15.3    -      -       -      +
    215R  LYS*     3.3    44.4    +      -       -      +
    228R  LEU*     1.3    71.8    -      -       -      +
    230R  GLY*     1.3    79.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 230 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298Q  ARG*     5.9     8.6    +      -       -      -
    309Q  LYS*     4.4     5.2    -      -       -      -
    173R  LEU*     4.5     4.0    -      -       -      -
    174R  MET*     3.1    22.7    -      -       -      -
    210R  SER*     5.4     0.7    -      -       -      -
    211R  THR      3.9    14.0    +      -       -      +
    214R  ALA*     3.9     2.4    -      -       -      +
    229R  ASP*     1.3    94.6    +      -       -      +
    231R  GLY*     1.3    57.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 231 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    309Q  LYS*     4.5     3.6    -      -       -      +
    174R  MET*     3.1    14.8    +      -       -      +
    175R  THR*     3.4     7.2    -      -       -      -
    176R  THR*     2.9    22.0    +      -       -      +
    209R  ASN      3.9     7.0    -      -       -      -
    210R  SER*     4.8     1.8    -      -       -      -
    211R  THR*     3.8    12.6    -      -       -      -
    230R  GLY*     1.3    74.1    -      -       -      -
    232R  ALA*     1.3    61.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 232 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    175R  THR*     4.9     0.9    -      -       -      -
    176R  THR*     3.3    25.4    -      -       +      +
    178R  HIS*     4.8     6.5    -      -       +      -
    208R  PRO*     3.3     4.5    -      -       -      +
    209R  ASN*     2.8    46.2    +      -       +      +
    210R  SER      4.6     2.9    -      -       -      +
    211R  THR*     4.4     7.9    -      -       +      -
    231R  GLY*     1.3    74.7    -      -       -      -
    233R  GLN*     1.3    69.4    +      -       -      +
    234R  ARG*     4.9     7.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 233 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177Q  ILE*     4.2    17.0    -      -       +      -
    242Q  LEU*     3.4    14.4    -      -       -      +
    244Q  GLU*     2.7    29.7    +      -       -      +
    296Q  GLN*     3.3    21.0    -      -       -      +
    175R  THR*     4.2    10.1    -      -       +      -
    176R  THR      2.9     9.5    +      -       -      +
    177R  ILE*     3.5     6.3    -      -       -      -
    178R  HIS      2.8    26.4    +      -       -      -
    206R  ILE*     3.7    14.7    -      -       +      +
    207R  ILE      3.4     2.3    -      -       -      -
    208R  PRO*     3.1    30.5    -      -       -      +
    232R  ALA*     1.3    82.1    +      -       -      +
    234R  ARG*     1.3    64.0    +      -       -      +
    235R  VAL*     3.6     6.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 234 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178R  HIS*     3.3    28.4    +      -       -      +
    179R  ALA      3.5    15.7    -      -       -      -
    180R  TYR*     4.8     1.6    -      -       -      -
    181R  THR*     3.0    31.5    +      -       -      +
    183R  ASP*     3.8    12.7    +      -       -      -
    184R  GLN*     2.7    56.9    +      -       -      +
    198R  ARG*     4.8     4.0    -      -       +      +
    202R  ALA      5.7     0.4    -      -       -      -
    205R  ASN      3.4     4.7    -      -       -      +
    207R  ILE*     2.7    43.5    +      -       +      +
    209R  ASN*     4.3    22.4    +      -       +      +
    210R  SER      5.6     3.8    +      -       -      -
    232R  ALA*     4.9     7.3    -      -       +      +
    233R  GLN*     1.3    72.5    -      -       -      +
    235R  VAL*     1.3    60.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 235 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    177Q  ILE*     4.1     9.9    -      -       +      -
    206Q  ILE*     3.8    22.7    -      -       +      -
    235Q  VAL*     4.0    23.3    -      -       +      -
    236Q  PRO*     5.1     0.2    -      -       +      -
    177R  ILE*     3.8    27.8    -      -       +      -
    178R  HIS      2.9    18.7    +      -       -      +
    180R  TYR*     3.5    16.7    +      -       -      +
    202R  ALA      4.6     1.8    -      -       -      -
    205R  ASN      3.8     1.1    -      -       -      -
    206R  ILE*     4.2     9.9    -      -       +      -
    233R  GLN      3.8     9.9    -      -       -      +
    234R  ARG*     1.3    81.1    -      -       -      +
    236R  PRO*     1.3    71.7    -      -       +      +
    237R  VAL      2.8    15.5    +      -       -      +
----------------------------------------------------------
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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