Contacts of the strand formed by residues 147 - 155 (chain D) 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 D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142D  ASP*     2.8    33.2    +      -       -      +
    145D  ASN*     2.8    36.3    +      -       -      +
    146D  GLN*     1.3    79.6    -      -       -      +
    148D  ASN*     1.3    64.0    +      -       -      +
    149D  TYR*     3.3    29.2    -      -       +      +
    233D  GLU*     3.0    41.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 148 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139D  TYR*     3.3    33.3    +      -       +      +
    140D  VAL      3.2     3.4    -      -       -      +
    141D  GLN*     3.5    25.7    +      -       -      +
    146D  GLN      4.4    10.0    +      -       -      +
    147D  ARG*     1.3    81.9    -      -       -      +
    149D  TYR*     1.3    63.7    +      -       -      +
    233D  GLU*     3.5    12.4    +      -       -      +
    234D  SER      3.2    22.2    +      -       -      +
    235D  GLU*     4.0     9.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 149 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      1D  MET*     3.6    42.6    -      -       +      -
    139D  TYR*     3.4     7.5    -      -       -      -
    140D  VAL*     2.5    60.5    +      -       +      -
    142D  ASP*     3.9    25.6    +      -       +      -
    145D  ASN*     4.0     7.8    +      -       -      -
    147D  ARG*     3.3    33.7    -      -       +      +
    148D  ASN*     1.3    73.6    -      -       -      +
    150D  MET*     1.3    64.9    +      -       -      +
    231D  SER*     4.8     2.9    -      -       -      -
    232D  VAL*     3.4    11.0    -      -       -      +
    233D  GLU*     3.5    38.1    -      -       +      -
    234D  SER      4.1     2.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 150 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53D  PHE*     4.3     5.4    -      -       +      -
     69D  ILE*     3.3    55.2    -      -       +      +
     70D  GLU*     4.6     0.4    -      -       -      -
     71D  HIS*     4.4     4.5    -      -       -      -
    138D  GLY      3.4    14.8    -      -       -      +
    139D  TYR*     3.6    27.1    -      -       -      -
    149D  TYR*     1.3    72.7    -      -       -      +
    151D  PHE*     1.3    61.6    +      -       -      +
    231D  SER*     3.3     3.3    -      -       -      -
    232D  VAL*     3.2    33.3    +      -       +      +
    234D  SER      3.7     6.5    +      -       -      +
    235D  GLU      3.7     9.4    -      -       -      +
    236D  TYR*     3.5    29.8    -      -       -      +
    237D  LEU*     3.7    18.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 151 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3D  ILE*     3.6    21.1    -      -       +      -
     16D  LEU*     4.4     7.2    -      -       +      -
     18D  HIS*     3.8    21.3    -      +       -      -
     69D  ILE*     5.4     1.4    -      -       -      +
    135D  LYS      4.2     1.8    -      -       -      -
    136D  ASN      3.4    21.5    -      -       -      -
    137D  ASN*     3.0    45.0    -      -       -      +
    138D  GLY*     3.0    25.4    +      -       -      +
    139D  TYR      4.5     0.2    -      -       -      -
    140D  VAL*     3.4    26.7    -      -       +      -
    150D  MET*     1.3    75.5    -      -       -      +
    152D  GLU*     1.3    65.0    +      -       -      +
    153D  ARG*     3.9    30.1    -      -       +      -
    229D  GLN*     4.6     2.0    -      -       +      -
    230D  PHE      3.3    13.0    -      -       -      +
    231D  SER*     3.7    12.6    -      -       -      -
    237D  LEU*     3.7     7.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 152 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69D  ILE*     5.8     1.1    -      -       +      +
    120D  LEU*     4.1     0.3    -      -       -      +
    132D  SER*     2.8    33.3    +      -       -      -
    136D  ASN      3.1     7.4    -      -       -      +
    137D  ASN*     3.0    22.6    +      -       +      +
    151D  PHE*     1.3    75.3    -      -       -      +
    153D  ARG*     1.3    79.1    +      -       -      +
    154D  LEU*     3.7    15.3    -      -       +      -
    228D  VAL      3.8     1.3    -      -       -      +
    229D  GLN*     3.3     2.6    -      -       -      +
    230D  PHE*     2.9    55.9    +      -       +      +
    237D  LEU*     3.7     8.3    -      -       +      +
    239D  TYR*     2.7    36.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 153 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      3D  ILE*     4.1    15.8    -      -       -      +
      4D  SER*     3.9     7.7    -      -       -      -
    131D  GLY      3.5     8.5    -      -       -      +
    132D  SER*     3.7     6.8    -      -       -      -
    133D  GLN      4.6     0.5    +      -       -      -
    135D  LYS      4.0    11.5    +      -       -      -
    136D  ASN*     2.9    45.4    +      -       +      +
    151D  PHE*     3.9    11.5    -      -       +      -
    152D  GLU*     1.3    94.5    +      -       -      +
    154D  LEU*     1.3    62.1    +      -       -      +
    155D  ASP*     3.8     0.9    +      -       -      +
    223D  GLU*     3.0    26.3    +      -       -      -
    224D  LYS*     3.8    33.2    -      -       -      +
    227D  LYS*     4.0    16.7    -      -       +      +
    228D  VAL      3.5     5.4    -      -       -      -
    229D  GLN*     2.6    31.9    +      -       +      -
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Residues in contact with LEU 154 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122D  PHE*     4.1    12.1    -      -       +      -
    130D  THR*     3.7    15.0    -      -       +      +
    131D  GLY*     3.3    18.2    -      -       -      +
    152D  GLU*     3.7    28.5    -      -       +      +
    153D  ARG*     1.3    72.5    -      -       -      +
    155D  ASP*     1.3    64.0    +      -       -      +
    156D  LEU*     4.4     0.5    -      -       -      +
    200D  TYR*     3.7    24.9    -      -       -      +
    206D  TYR*     5.6     1.1    -      -       +      +
    208D  VAL*     4.3    13.2    -      -       +      -
    227D  LYS*     3.4     1.5    -      -       -      -
    228D  VAL*     2.9    32.1    +      -       -      +
    230D  PHE*     3.9    13.5    -      -       +      -
    239D  TYR*     3.9    27.6    -      -       +      +
    241D  VAL*     5.0     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 155 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    488A  GLU*     6.5     0.2    -      -       +      -
    128D  ARG*     2.7    40.3    +      -       -      +
    129D  ILE      4.9     0.6    -      -       -      +
    130D  THR*     2.9    21.1    +      -       -      +
    131D  GLY      2.9    13.8    +      -       -      +
    133D  GLN*     3.3    21.0    -      -       -      +
    153D  ARG      3.8     1.3    +      -       -      +
    154D  LEU*     1.3    75.3    -      -       -      +
    156D  LEU*     1.3    63.8    +      -       -      +
    160D  GLU*     4.0     1.0    -      -       -      +
    206D  TYR*     3.6    10.9    +      -       -      -
    226D  SER*     3.7     6.1    +      -       -      +
    227D  LYS*     3.0    34.0    +      -       -      +
----------------------------------------------------------
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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