Contacts of the strand formed by residues 147 - 155 (chain F) in PDB entry 1XSK


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 ARG 147 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142F  ASP*     2.8    31.0    +      -       -      +
    145F  ASN*     2.9    35.6    +      -       -      +
    146F  GLN*     1.3    79.0    -      -       -      +
    148F  ASN*     1.3    63.0    +      -       -      +
    149F  TYR*     3.3    29.6    -      -       +      +
    233F  GLU*     3.0    37.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 148 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139F  TYR*     3.2    31.5    +      -       +      +
    140F  VAL      3.2     6.5    -      -       -      +
    141F  GLN*     3.5    26.8    +      -       -      +
    142F  ASP      4.2     0.2    +      -       -      -
    146F  GLN      4.4     9.7    +      -       -      +
    147F  ARG*     1.3    82.6    -      -       -      +
    149F  TYR*     1.3    63.6    +      -       -      +
    233F  GLU*     3.3    21.9    +      -       -      +
    234F  SER*     3.5    11.0    +      -       -      +
    235F  GLU*     4.0     7.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 149 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1F  MET*     3.6    42.4    -      -       +      -
    139F  TYR*     3.4     7.6    -      -       -      -
    140F  VAL*     2.6    58.8    +      -       +      -
    142F  ASP*     4.0    24.7    +      -       +      -
    145F  ASN*     4.3     6.2    +      -       -      -
    147F  ARG*     3.3    33.9    -      -       +      -
    148F  ASN*     1.3    74.3    -      -       -      +
    150F  MET*     1.3    66.4    +      -       -      +
    231F  SER*     4.9     2.5    -      -       -      -
    232F  VAL*     3.4    10.1    -      -       -      +
    233F  GLU*     3.4    40.0    +      -       +      -
    234F  SER      4.0     2.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 150 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53F  PHE*     4.2     7.2    -      -       +      -
     69F  ILE*     3.2    47.3    -      -       +      +
     70F  GLU*     4.5     0.9    -      -       -      +
     71F  HIS*     4.4     4.3    -      -       -      -
    138F  GLY*     3.3    25.8    -      -       -      +
    139F  TYR*     3.6    26.5    -      -       -      -
    149F  TYR*     1.3    73.2    -      -       -      +
    151F  PHE*     1.3    63.7    +      -       -      +
    231F  SER*     3.3     4.2    -      -       -      -
    232F  VAL*     3.1    34.0    +      -       +      +
    234F  SER      3.4    18.8    -      -       -      +
    235F  GLU      3.7     6.5    -      -       -      +
    236F  TYR*     3.6    19.3    -      -       -      +
    237F  LEU*     3.7    20.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 151 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3F  ILE*     3.6    23.8    -      -       +      -
     16F  LEU*     5.1     1.8    -      -       +      -
     18F  HIS*     4.0    21.1    -      +       -      -
     69F  ILE*     5.1     1.2    -      -       -      +
    135F  LYS      4.3     2.0    -      -       -      -
    136F  ASN      3.4    19.7    -      -       -      -
    137F  ASN*     3.1    17.6    -      -       -      +
    138F  GLY*     3.0    54.9    +      -       -      +
    139F  TYR      4.5     1.6    -      -       -      -
    140F  VAL*     3.6    25.1    -      -       +      -
    150F  MET*     1.3    77.2    -      -       -      +
    152F  GLU*     1.3    66.6    +      -       -      +
    153F  ARG*     3.8    27.4    -      -       -      -
    229F  GLN*     4.4     4.5    -      -       +      -
    230F  PHE      3.3    13.2    -      -       -      +
    231F  SER*     3.7    12.8    -      -       -      -
    237F  LEU*     3.5     8.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 152 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69F  ILE*     3.8     3.3    -      -       +      +
    120F  LEU*     4.1     1.0    -      -       -      +
    132F  SER*     2.7    33.4    +      -       -      -
    136F  ASN      3.4     4.6    -      -       -      +
    137F  ASN*     3.0    28.2    +      -       +      +
    151F  PHE*     1.3    77.9    -      -       -      +
    153F  ARG*     1.3    76.9    +      -       -      +
    154F  LEU*     3.7    18.6    -      -       +      -
    228F  VAL      3.7     1.0    -      -       -      +
    229F  GLN*     3.3     2.9    -      -       -      +
    230F  PHE*     2.9    47.1    +      -       +      -
    237F  LEU*     3.6    16.6    -      -       +      -
    239F  TYR*     2.9    26.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 153 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3F  ILE*     4.0    17.4    -      -       -      +
      4F  SER*     4.0     5.9    -      -       -      -
    131F  GLY      3.4     9.9    -      -       -      +
    132F  SER*     3.7     5.7    -      -       -      -
    135F  LYS      4.1     7.9    +      -       -      -
    136F  ASN*     2.9    47.5    +      -       +      +
    151F  PHE*     3.8    15.3    -      -       +      -
    152F  GLU*     1.3    84.2    +      -       -      +
    154F  LEU*     1.3    61.2    +      -       -      +
    155F  ASP*     3.7     1.2    +      -       -      +
    223F  GLU*     2.7    28.1    +      -       -      -
    224F  LYS*     3.7    33.5    -      -       +      +
    227F  LYS*     3.7    20.9    -      -       +      +
    228F  VAL      3.4     5.2    -      -       -      -
    229F  GLN*     2.7    38.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 154 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122F  PHE*     4.0    15.0    -      -       +      -
    130F  THR*     3.8    14.8    -      -       +      +
    131F  GLY*     3.2    12.6    -      -       -      +
    132F  SER*     4.4     0.2    -      -       -      -
    152F  GLU*     3.7    12.8    -      -       +      -
    153F  ARG*     1.3    72.3    -      -       -      +
    155F  ASP*     1.3    67.2    +      -       -      +
    156F  LEU*     4.9     0.2    -      -       -      +
    200F  TYR*     3.6    24.5    -      -       -      +
    206F  TYR*     5.5     0.4    -      -       -      +
    208F  VAL*     4.1    15.9    -      -       +      -
    227F  LYS*     4.3     0.9    -      -       -      -
    228F  VAL*     3.0    31.3    +      -       -      +
    230F  PHE*     3.9    19.5    -      -       +      -
    239F  TYR*     3.7    37.9    -      -       +      +
    241F  VAL*     4.9     4.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 155 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    488E  GLU*     6.5     0.2    -      -       +      -
    128F  ARG*     2.7    40.6    +      -       -      +
    129F  ILE      4.9     0.2    -      -       -      +
    130F  THR*     2.7    25.7    +      -       -      +
    131F  GLY      2.8    16.0    +      -       -      +
    133F  GLN*     3.6    17.9    +      -       -      +
    153F  ARG      4.4     0.7    -      -       -      +
    154F  LEU*     1.3    75.4    -      -       -      +
    156F  LEU*     1.3    64.0    +      -       -      +
    160F  GLU*     4.1     1.0    -      -       -      +
    206F  TYR*     3.5    10.4    +      -       -      -
    226F  SER      3.8     6.9    -      -       -      +
    227F  LYS*     3.0    33.7    +      -       -      +
----------------------------------------------------------
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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