Contacts of the strand formed by residues 167 - 179 (chain A) 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 167 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147A  SER*     3.4     2.6    -      -       -      -
    148A  GLU*     2.9    45.8    +      -       -      +
    150A  GLY      2.8    22.0    -      -       -      +
    151A  GLY*     3.6     5.6    -      -       -      -
    152A  SER*     3.1    36.1    -      -       -      +
    166A  GLU*     1.3    71.7    -      -       -      +
    168A  ALA*     1.3    69.8    +      -       -      +
    169A  ASN*     3.1     5.0    +      -       -      +
    196A  ALA*     3.9    12.6    -      -       -      +
    197A  ASN      4.8     2.1    +      -       -      -
    198A  LEU*     4.8     3.6    -      -       -      -
    204A  LEU*     4.5     3.5    -      -       +      +
    250A  SER*     3.9     9.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 168 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  ARG*     4.0    21.8    -      -       -      +
    146A  SER      3.6     6.3    -      -       -      -
    147A  SER*     4.2     5.7    -      -       -      -
    166A  GLU*     4.1     2.6    +      -       -      +
    167A  THR*     1.3    75.0    +      -       -      +
    169A  ASN*     1.3    61.5    +      -       -      +
    170A  ASP      4.3     0.2    -      -       -      -
    196A  ALA*     3.6     1.6    -      -       -      -
    197A  ASN*     2.8    44.4    +      -       +      +
     18B  GLY*     4.9     0.2    -      -       -      -
     19B  GLU*     4.3    29.2    +      -       -      +
     71B  GLN*     4.9     0.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 169 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  ARG*     3.7     4.9    -      -       -      -
    146A  SER*     2.8    40.6    +      -       -      +
    148A  GLU*     2.8    24.2    +      -       -      +
    167A  THR*     3.1    18.9    +      -       -      +
    168A  ALA*     1.3    75.6    -      -       -      +
    170A  ASP*     1.3    64.2    +      -       -      +
    171A  VAL*     5.5     1.1    -      -       -      +
    195A  ARG      3.4     3.6    -      -       -      +
    196A  ALA*     3.6    13.7    -      -       -      +
    247A  SER*     2.6    49.6    +      -       -      +
    249A  GLY      2.9    20.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 170 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  THR      3.8     5.6    -      -       -      +
    145A  ARG*     2.9    35.6    +      -       -      -
    169A  ASN*     1.3    72.7    -      -       -      +
    171A  VAL*     1.3    62.3    +      -       -      +
    172A  PHE*     3.8    24.5    -      -       +      -
    193A  TYR      3.9     0.7    -      -       -      +
    194A  GLY*     3.1     4.5    -      -       -      -
    195A  ARG*     3.0    38.0    +      -       +      +
    197A  ASN*     2.9    25.7    +      -       -      +
    247A  SER*     4.5     0.3    -      -       -      -
     13B  TRP*     2.7    29.5    +      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 171 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122A  ILE*     4.1    11.2    -      -       +      -
    142A  ALA      3.8     0.3    -      -       -      +
    143A  ALA*     3.3     8.0    -      -       -      +
    144A  THR*     3.1    42.6    +      -       -      +
    146A  SER*     5.7     1.1    -      -       -      +
    169A  ASN      5.5     1.6    -      -       -      +
    170A  ASP*     1.3    78.6    -      -       -      +
    172A  PHE*     1.3    68.6    +      -       -      +
    173A  ASP*     4.6     2.5    -      -       +      -
    192A  ASP*     3.6    24.2    -      -       +      +
    193A  TYR      3.4     6.1    -      -       -      +
    194A  GLY*     4.0     8.1    -      -       -      -
    239A  MET*     4.5     1.1    -      -       +      -
    245A  GLY      3.1    29.4    -      -       -      +
    246A  LEU*     3.9     8.3    -      -       +      -
    247A  SER      3.8    18.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 172 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142A  ALA      3.7     2.5    -      -       -      +
    143A  ALA*     4.0    19.5    -      -       +      -
    170A  ASP*     3.8    32.5    -      -       +      -
    171A  VAL*     1.3    76.5    -      -       -      +
    173A  ASP*     1.3    59.9    +      -       -      +
    174A  VAL*     5.3     3.5    -      -       +      +
    191A  VAL      3.6     1.6    -      -       -      +
    192A  ASP*     3.4     5.1    -      -       -      -
    193A  TYR*     2.8    60.4    +      +       +      +
    195A  ARG*     4.6    17.7    -      -       +      -
     13B  TRP*     4.3    15.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with ASP 173 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107A  TYR*     3.9     9.2    +      -       -      -
    120A  TRP*     4.0     2.1    +      -       -      -
    122A  ILE*     3.6    21.9    -      -       +      +
    140A  SER      4.7     0.9    -      -       -      +
    141A  LEU*     3.4     5.4    -      -       -      +
    142A  ALA*     2.8    41.6    +      -       -      +
    171A  VAL*     4.6     1.3    -      -       +      -
    172A  PHE*     1.3    73.1    -      -       -      +
    174A  VAL*     1.3    65.6    +      -       -      +
    175A  ARG*     2.9    49.5    +      -       -      +
    191A  VAL      3.6     1.1    -      -       -      -
    192A  ASP*     2.4    30.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 174 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  LEU*     3.9    17.0    -      -       +      -
    140A  SER      3.4     2.5    -      -       -      -
    141A  LEU*     3.8    27.4    -      -       +      -
    172A  PHE*     5.3     2.7    -      -       +      -
    173A  ASP*     1.3    80.8    +      -       -      +
    175A  ARG*     1.3    67.2    +      -       -      +
    176A  LEU*     6.1     0.2    -      -       +      -
    190A  GLY*     3.3     2.8    -      -       -      -
    191A  VAL*     3.0    43.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 175 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    107A  TYR*     3.9    15.6    +      -       -      -
    108A  GLN*     3.0    49.8    +      -       -      +
    110A  HIS*     3.9     3.6    +      -       -      -
    120A  TRP*     3.4    54.9    +      -       +      +
    122A  ILE*     3.7    23.8    -      -       -      +
    138A  LYS      3.6     0.6    -      -       -      +
    139A  LEU*     3.3     8.9    -      -       -      +
    140A  SER*     2.9    40.3    +      -       -      +
    173A  ASP*     2.9    36.7    +      -       -      +
    174A  VAL*     1.3    77.6    -      -       -      +
    176A  LEU*     1.3    60.8    +      -       -      +
    177A  ALA*     4.1     1.3    -      -       +      +
    188A  GLU*     3.9    12.8    -      -       -      +
    189A  LEU      3.3     7.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 176 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    134A  VAL*     4.0    27.1    -      -       +      -
    136A  PHE*     3.8    13.2    -      -       +      -
    137A  GLY*     4.4     3.1    -      -       -      -
    138A  LYS      3.2    18.4    -      -       -      +
    139A  LEU*     4.4    13.2    -      -       +      +
    174A  VAL*     6.1     0.4    -      -       +      -
    175A  ARG*     1.3    73.8    -      -       -      +
    177A  ALA*     1.3    60.2    +      -       -      +
    179A  MET*     3.4    35.7    -      -       +      +
    187A  LEU      4.1     1.6    -      -       -      +
    188A  GLU*     3.3     2.1    -      -       -      -
    189A  LEU*     2.8    49.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 177 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    108A  GLN*     6.1     0.2    -      -       -      +
    137A  GLY*     3.3     3.8    -      -       -      -
    138A  LYS*     2.8    39.5    +      -       +      +
    175A  ARG*     5.5     0.9    -      -       +      -
    176A  LEU*     1.3    75.2    -      -       -      +
    178A  GLN*     1.3    73.5    +      -       +      +
    179A  MET*     3.3     4.4    -      -       -      +
    187A  LEU      3.8     4.9    -      -       -      -
    188A  GLU*     3.6    28.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 178 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131A  ASN*     5.2     1.3    +      -       -      -
    136A  PHE      4.1     5.6    -      -       -      +
    137A  GLY*     4.3     3.8    -      -       -      -
    138A  LYS*     3.3    34.4    -      -       +      +
    177A  ALA*     1.3    85.4    -      -       +      +
    179A  MET*     1.3    57.3    +      -       -      +
    180A  GLU*     2.6    33.1    +      -       -      +
    186A  THR*     4.5    14.7    -      -       +      -
    187A  LEU      3.4     6.0    +      -       -      -
    188A  GLU*     5.0     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with MET 179 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136A  PHE*     3.3    52.7    -      -       +      +
    137A  GLY*     4.6     0.2    -      -       -      -
    176A  LEU*     3.4    31.4    -      -       +      +
    177A  ALA      4.4     5.8    -      -       -      +
    178A  GLN*     1.3    75.0    -      -       -      +
    180A  GLU*     1.3    63.9    +      -       -      +
    181A  ILE*     3.2    17.4    +      -       +      +
    186A  THR*     3.4     2.9    -      -       -      -
    187A  LEU*     3.0    49.5    +      -       +      +
    189A  LEU*     4.9     9.9    -      -       +      -
----------------------------------------------------------
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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