Contacts of the strand formed by residues 186 - 196 (chain B) in PDB entry 1AF6


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 186 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    178B  GLN*     4.4    16.6    -      -       +      -
    179B  MET      3.4     7.4    -      -       -      +
    180B  GLU*     4.2    22.7    -      -       +      +
    181B  ILE*     5.3     0.7    -      -       -      -
    184B  GLY      4.4     1.3    -      -       -      -
    185B  GLY*     1.3    79.5    -      -       -      +
    187B  LEU*     1.3    60.3    +      -       -      +
    218B  GLU      3.8     0.3    -      -       -      +
    219B  HIS*     3.3     8.1    -      -       -      -
    220B  THR*     2.7    59.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 187 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    176B  LEU      4.1     0.9    -      -       -      +
    177B  ALA*     3.9     1.4    -      -       -      -
    178B  GLN      3.4     6.3    +      -       -      -
    179B  MET*     3.1    44.2    +      -       +      +
    181B  ILE*     4.1    27.6    -      -       +      -
    186B  THR*     1.3    75.7    -      -       -      +
    188B  GLU*     1.3    67.5    +      -       -      +
    189B  LEU*     3.9    30.3    -      -       +      -
    217B  ALA*     4.9     4.5    -      -       +      -
    218B  GLU      3.4    22.2    -      -       -      +
    219B  HIS*     4.4    12.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 188 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108B  GLN*     4.2     8.0    -      -       -      +
    110B  HIS*     3.1    26.5    +      -       -      -
    120B  TRP*     3.8    23.9    -      -       +      -
    175B  ARG*     3.8    21.8    -      -       -      +
    176B  LEU      3.3    11.7    -      -       -      +
    177B  ALA*     3.6    22.6    -      -       +      +
    178B  GLN      5.0     0.4    -      -       -      +
    187B  LEU*     1.3    75.9    -      -       -      +
    189B  LEU*     1.3    74.6    +      -       -      +
    216B  THR*     4.0     0.7    -      -       -      +
    217B  ALA*     3.5     1.0    -      -       -      -
    218B  GLU*     2.8    43.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 189 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    174B  VAL      4.1     0.2    -      -       -      +
    175B  ARG*     3.3     3.1    -      -       -      +
    176B  LEU*     2.8    45.7    +      -       +      +
    179B  MET*     4.8    14.8    -      -       +      -
    187B  LEU*     3.9    27.4    -      -       +      -
    188B  GLU*     1.3    89.3    -      -       -      +
    190B  GLY*     1.3    59.2    +      -       -      +
    191B  VAL*     6.5     0.2    -      -       +      -
    216B  THR      3.4     4.0    -      -       -      +
    217B  ALA*     4.0    19.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 190 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120B  TRP*     3.7    24.0    -      -       -      -
    174B  VAL      3.3     9.9    -      -       -      -
    189B  LEU*     1.3    75.8    -      -       -      +
    191B  VAL*     1.3    66.2    +      -       -      +
    192B  ASP*     5.4     0.2    -      -       -      -
    214B  LEU      4.5     0.4    -      -       -      -
    215B  PHE*     3.5     3.6    -      -       -      +
    216B  THR*     2.8    37.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 191 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    172B  PHE      3.7     1.0    -      -       -      +
    173B  ASP*     3.6     2.8    -      -       -      -
    174B  VAL*     3.0    40.1    +      -       +      +
    189B  LEU      6.0     0.2    -      -       -      -
    190B  GLY*     1.3    78.7    -      -       -      +
    192B  ASP*     1.3    67.9    +      -       -      +
    193B  TYR      4.8     0.2    -      -       -      +
    213B  TRP*     3.7    34.1    -      -       +      -
    214B  LEU      3.5     2.7    -      -       -      -
    215B  PHE*     3.9    21.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 192 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120B  TRP*     3.0    31.1    +      -       -      -
    122B  ILE*     4.0     6.5    -      -       -      +
    171B  VAL*     3.6    12.9    -      -       +      +
    172B  PHE      3.4     2.2    -      -       -      +
    173B  ASP*     2.5    39.1    -      -       -      +
    190B  GLY      5.4     0.2    -      -       -      -
    191B  VAL*     1.3    80.0    -      -       -      +
    193B  TYR*     1.3    59.3    +      -       -      +
    194B  GLY      4.1     0.4    -      -       -      -
    213B  TRP*     3.2     8.8    -      -       -      +
    214B  LEU*     2.7    50.0    +      -       +      +
    216B  THR*     5.0     0.3    +      -       -      -
    239B  MET*     3.7    20.8    -      -       +      +
    245B  GLY      4.7     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with TYR 193 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    171B  VAL*     3.4     3.3    -      -       -      -
    172B  PHE*     2.8    59.3    +      +       +      +
    191B  VAL*     4.8     1.0    -      -       +      +
    192B  ASP*     1.3    74.0    -      -       -      +
    194B  GLY*     1.3    58.5    +      -       -      +
    195B  ARG*     3.9    35.3    +      -       +      +
    211B  ASP*     2.5    41.1    +      -       +      +
    212B  GLY      3.3    17.9    -      -       -      -
    213B  TRP*     3.5    45.1    -      +       +      -
----------------------------------------------------------
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Residues in contact with GLY 194 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    170B  ASP      3.1    11.7    -      -       -      -
    171B  VAL*     4.1     6.1    -      -       -      -
    192B  ASP      4.1     0.8    -      -       -      -
    193B  TYR*     1.3    77.3    -      -       -      +
    195B  ARG*     1.3    61.4    +      -       -      -
    211B  ASP*     3.2     4.5    -      -       -      +
    212B  GLY      2.9    34.9    +      -       -      +
    238B  SER*     3.6     0.9    +      -       -      -
    239B  MET*     4.1     5.4    -      -       -      -
    247B  SER*     3.8    18.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 195 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    169B  ASN*     3.8     7.0    -      -       -      -
    170B  ASP*     3.0    37.1    +      -       +      +
    172B  PHE*     4.6    15.3    -      -       +      -
    193B  TYR*     3.9    30.7    +      -       +      +
    194B  GLY*     1.3    74.2    -      -       -      +
    196B  ALA*     1.3    81.3    +      -       -      +
    197B  ASN*     3.5    13.8    +      -       +      +
    198B  LEU      5.5     1.8    -      -       -      +
    210B  LYS*     3.3    12.4    -      -       +      +
    211B  ASP*     3.6    16.6    +      -       +      +
    247B  SER*     3.7     2.5    +      -       -      -
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Residues in contact with ALA 196 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    167B  THR*     3.9    17.7    -      -       -      +
    168B  ALA      3.5     6.3    -      -       -      -
    169B  ASN*     3.5    14.2    -      -       -      +
    195B  ARG*     1.3    93.4    +      -       -      +
    197B  ASN*     1.3    57.5    +      -       -      +
    198B  LEU*     3.9     6.5    +      -       +      +
    204B  LEU*     4.0    25.4    -      -       +      -
    210B  LYS*     2.7    23.0    +      -       +      +
    249B  GLY*     4.2     6.7    -      -       -      -
----------------------------------------------------------
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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