Contacts of the strand formed by residues 56 - 68 (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 LYS 56 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51B  TRP*     3.7    19.6    -      -       +      -
     52B  LYS*     3.3     3.0    -      -       -      +
     53B  GLU*     2.9    39.7    +      -       +      +
     55B  ASP*     1.3    85.8    -      -       +      +
     57B  SER*     1.3    63.4    +      -       -      +
     89B  LYS      3.5     4.7    -      -       -      -
     90B  ASN*     3.1    26.0    +      -       +      +
     91B  LEU*     4.1     9.3    -      -       +      +
     93B  GLU*     5.3    13.6    -      -       -      +
    319C  ILE*     3.8    27.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 57 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  GLU*     3.9    22.6    +      -       -      -
     51B  TRP*     3.2    16.5    -      -       -      -
     52B  LYS*     4.1    12.5    +      -       -      -
     55B  ASP      4.0     1.6    +      -       -      -
     56B  LYS*     1.3    76.5    -      -       -      +
     58B  PHE*     1.3    64.9    +      -       -      +
     59B  TYR*     5.8     0.5    -      -       -      +
     88B  GLY*     3.5     3.1    -      -       -      -
     89B  LYS*     2.8    59.9    +      -       -      +
     91B  LEU*     4.4     1.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 58 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49B  GLU*     3.5     5.8    -      -       -      +
     50B  VAL*     3.0    29.7    +      -       +      -
     51B  TRP*     3.0    35.2    +      +       +      +
     57B  SER*     1.3    75.6    -      -       -      +
     59B  TYR*     1.3    59.8    +      -       -      +
     86B  VAL*     3.7    14.4    -      -       +      -
     87B  GLN      3.3     3.8    -      -       -      -
     88B  GLY*     4.1     6.3    -      -       -      -
     91B  LEU*     3.5    32.3    -      -       +      -
    319C  ILE*     5.3     1.1    -      -       +      -
    351C  TRP      4.0    11.2    -      -       -      -
    352C  GLN*     3.6    26.2    -      -       -      -
    353C  ALA*     3.7    23.8    -      -       +      -
    361C  PRO*     3.7    33.9    -      -       +      -
    363C  ILE*     4.3    12.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 59 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      2B  ASP*     2.6    41.3    +      -       -      +
      4B  HIS*     4.8     5.9    -      -       -      -
     47B  GLY*     3.6     5.4    -      -       -      -
     48B  GLN      3.6     6.5    -      -       -      -
     49B  GLU*     3.5    34.1    -      -       +      +
     50B  VAL*     5.2     0.4    -      -       -      -
     57B  SER*     4.2     0.8    -      -       -      +
     58B  PHE*     1.3    73.4    -      -       -      +
     60B  PHE*     1.3    75.2    +      -       -      +
     61B  ASP*     3.9    21.1    +      -       +      -
     85B  ASN*     3.8     0.9    -      -       -      +
     86B  VAL*     3.3     6.5    -      -       -      -
     87B  GLN*     2.9    43.2    +      -       +      +
     89B  LYS*     3.8    25.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 60 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46B  LEU      5.0     0.7    -      -       -      -
     47B  GLY*     3.0     3.8    -      -       -      -
     48B  GLN*     2.8    38.8    +      -       +      +
     50B  VAL*     4.3     6.9    -      -       +      +
     58B  PHE      4.3     0.2    -      -       -      -
     59B  TYR*     1.3    76.8    -      -       -      +
     61B  ASP*     1.3    74.4    +      -       -      +
     62B  THR*     3.4    26.2    -      -       +      -
     84B  ALA*     4.8     1.3    -      -       -      -
     85B  ASN      3.6    10.3    -      -       -      -
     86B  VAL*     4.0     6.5    -      -       +      -
      3C  PHE*     4.2    13.0    -      +       -      -
      7C  ALA*     4.1     7.4    -      -       +      -
     44C  LEU*     5.0     0.7    -      -       +      -
    417C  MET*     4.0    14.6    -      -       +      -
    419C  ILE*     3.7    42.2    -      -       +      -
    421C  TRP*     3.3    49.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with ASP 61 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4B  HIS*     6.2     0.2    -      -       -      -
     45B  LYS*     2.6    40.1    +      -       -      +
     46B  LEU      4.0     3.6    -      -       -      +
     47B  GLY*     4.0    11.4    +      -       -      -
     59B  TYR*     3.9    19.1    +      -       +      -
     60B  PHE*     1.3    78.2    -      -       -      +
     62B  THR*     1.3    68.4    +      -       -      +
     83B  GLU*     4.4     6.2    -      -       -      +
     84B  ALA*     3.3     5.6    +      -       -      -
     85B  ASN*     3.1    48.1    +      -       -      +
     87B  GLN*     4.7     6.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 62 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44B  LEU      4.8     1.0    +      -       -      -
     45B  LYS*     3.2    29.9    +      -       -      +
     46B  LEU*     2.8    31.8    +      -       -      +
     60B  PHE*     3.4    36.8    -      -       +      -
     61B  ASP*     1.3    76.3    +      -       -      +
     63B  ASN*     1.3    63.9    +      -       -      +
     64B  VAL*     5.5     0.7    -      -       -      +
     81B  PHE*     4.8     8.1    -      -       +      -
     83B  GLU*     3.2    14.4    -      -       -      +
     84B  ALA*     4.7     2.5    -      -       +      -
      3C  PHE*     5.1     0.9    -      -       +      -
     44C  LEU*     4.2    27.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 63 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43B  GLU*     3.3    33.9    -      -       -      +
     44B  LEU      3.7     6.2    -      -       -      +
     45B  LYS*     3.7    11.8    -      -       -      +
     62B  THR*     1.3    79.3    -      -       -      +
     64B  VAL*     1.3    72.1    +      -       -      +
     65B  ALA*     4.1     2.6    -      -       -      +
     81B  PHE*     3.8     4.0    -      -       -      -
     82B  ARG*     3.0    25.2    +      -       -      -
     83B  GLU*     2.9    48.4    +      -       +      +
    106B  PHE*     3.2    23.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 64 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42B  ALA      3.8     0.9    -      -       -      +
     43B  GLU*     3.5     0.3    -      -       -      -
     44B  LEU*     2.9    37.4    +      -       +      +
     62B  THR*     5.5     0.7    -      -       -      +
     63B  ASN*     1.3    78.2    -      -       -      +
     65B  ALA*     1.3    62.5    +      -       -      +
     66B  TYR*     3.5    36.2    -      -       +      +
     79B  PRO*     3.8    13.9    -      -       +      -
     80B  ALA      3.5     6.7    -      -       -      +
     81B  PHE*     3.8    23.8    -      -       +      -
     44C  LEU*     4.4    13.9    -      -       +      -
     66C  TYR*     3.8    24.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 65 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41B  TYR*     3.6    24.2    -      -       +      +
     42B  ALA      3.2     7.4    -      -       -      +
     43B  GLU*     3.9     7.2    -      -       +      +
     63B  ASN*     4.1     0.8    -      -       -      +
     64B  VAL*     1.3    75.0    -      -       -      +
     66B  TYR*     1.3    60.3    +      -       -      +
     78B  ASP      4.6     0.2    -      -       -      +
     79B  PRO*     3.2     7.4    -      -       -      +
     80B  ALA*     2.8    35.6    +      -       -      +
     82B  ARG*     3.7    23.3    -      -       -      -
     74C  TRP*     4.1    10.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 66 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64A  VAL*     3.8    35.1    -      -       +      +
     66A  TYR*     4.0     4.0    +      -       -      -
     79A  PRO*     4.3     6.7    -      -       +      +
     81A  PHE*     3.8    42.3    -      +       +      -
     40B  THR      3.8     0.7    -      -       -      +
     41B  TYR*     3.3     8.4    -      -       -      -
     42B  ALA      2.8    36.6    +      -       -      +
     44B  LEU*     4.3    20.2    -      -       +      +
     64B  VAL*     3.5    37.8    -      -       +      +
     65B  ALA*     1.3    75.3    -      -       -      +
     67B  SER*     1.3    61.1    +      -       -      +
     68B  VAL      4.2     0.4    -      -       -      -
     77B  THR*     4.1    17.5    -      -       +      -
     78B  ASP      5.6     0.7    -      -       -      -
     79B  PRO*     3.6    25.4    -      -       +      +
     66C  TYR*     4.0     8.3    +      -       -      -
     74C  TRP*     5.1     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with SER 67 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39B  GLU*     4.2    15.9    -      -       -      +
     40B  THR      3.4     7.6    +      -       -      -
     41B  TYR*     3.9    13.9    -      -       -      -
     66B  TYR*     1.3    76.6    -      -       -      +
     68B  VAL*     1.3    66.9    +      -       -      +
     77B  THR*     3.5    14.4    +      -       -      -
     78B  ASP      5.6     1.2    +      -       -      -
     74C  TRP*     4.4    17.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 68 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     81A  PHE*     4.2    20.6    -      -       +      +
    104A  LYS*     4.4     5.8    -      -       -      -
     39B  GLU*     3.5     7.7    -      -       -      +
     40B  THR*     2.9    56.1    +      -       +      +
     67B  SER*     1.3    80.5    -      -       -      +
     69B  ALA*     1.3    58.5    +      -       -      +
     70B  GLN      4.3     0.2    -      -       -      +
     75B  GLU*     3.4    39.0    -      -       +      +
     76B  ALA      5.1     0.4    -      -       -      +
     77B  THR*     3.8    29.8    -      -       +      -
----------------------------------------------------------
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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