Contacts of the strand formed by residues 154 - 166 (chain D) in PDB entry 1QD6


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 SER 154 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    142D  HIS*     4.2    12.3    -      -       -      -
    143D  ASP      3.2    14.1    -      -       -      -
    144D  SER*     3.8    13.2    -      -       -      -
    152D  SER*     5.5     0.9    -      -       -      -
    153D  ARG*     1.3    75.9    -      -       -      +
    155D  TRP*     1.3    63.7    +      -       -      +
    156D  ASN*     5.4     1.2    +      -       -      -
    181D  ASN*     4.7     5.6    +      -       -      +
    182D  THR*     4.2    11.1    -      -       -      -
    184D  ASP*     3.5    17.0    +      -       -      +
    185D  ASN*     2.8    29.7    +      -       -      +
    249D  LEU*     4.5     3.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 155 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  ASN*     4.1     0.5    -      -       -      +
    142D  HIS*     3.4     5.2    +      -       -      -
    143D  ASP*     3.1    65.2    +      -       +      +
    154D  SER*     1.3    77.5    -      -       -      +
    156D  ASN*     1.3    68.9    +      -       -      +
    157D  ARG*     3.5    41.2    +      -       +      +
    176D  TRP*     3.7    15.7    -      +       -      -
    178D  VAL*     3.6    33.0    -      -       +      -
    181D  ASN      4.8     0.4    -      -       -      -
    182D  THR*     4.0    18.2    -      -       +      -
    185D  ASN*     4.3     3.4    -      -       -      +
    188D  ILE*     3.7    31.6    -      -       +      +
    189D  THR*     4.2     9.9    -      -       +      -
    192D  MET*     3.5    41.7    -      -       +      -
    249D  LEU*     4.1     4.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 156 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    140D  TYR*     2.5    36.9    +      -       +      -
    141D  ASN      3.4     4.5    -      -       -      -
    142D  HIS*     3.0    21.6    +      -       -      -
    154D  SER*     5.4     1.6    +      -       -      -
    155D  TRP*     1.3    79.7    -      -       -      +
    157D  ARG*     1.3    64.0    +      -       -      +
    178D  VAL*     3.3     9.2    -      -       -      +
    179D  VAL*     3.0    44.5    +      -       +      +
    180D  GLY*     5.0     1.9    -      -       -      -
    181D  ASN*     3.9    22.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 157 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115D  GLU*     3.7    11.1    +      -       -      -
    140D  TYR*     3.5     5.4    -      -       -      -
    141D  ASN*     2.8    74.7    +      -       +      +
    143D  ASP*     3.7    22.0    +      -       -      +
    155D  TRP*     3.5    44.1    -      -       +      +
    156D  ASN*     1.3    80.2    -      -       -      +
    158D  LEU*     1.3    63.5    +      -       -      +
    159D  TYR*     4.0     1.5    +      -       +      -
    174D  LYS*     5.5     4.4    -      -       -      +
    176D  TRP*     3.4    65.9    -      -       +      -
    177D  TYR      3.3     5.2    -      -       -      +
    178D  VAL*     4.2     4.9    -      -       +      -
    179D  VAL*     4.5     1.3    -      -       -      +
    192D  MET*     5.5     2.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 158 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    138D  MET*     5.4     9.4    -      -       +      -
    139D  GLY      3.4    11.4    -      -       -      +
    140D  TYR*     4.2    24.9    -      -       +      -
    157D  ARG*     1.3    72.6    -      -       -      +
    159D  TYR*     1.3    58.5    +      -       -      +
    176D  TRP*     3.2     1.8    -      -       -      -
    177D  TYR*     2.7    51.3    +      -       +      +
    179D  VAL*     3.9    29.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with TYR 159 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117D  GLN*     3.2    30.3    +      -       -      +
    119D  PHE*     3.4    16.2    -      -       +      +
    137D  GLU*     2.7    35.6    +      -       +      -
    138D  MET*     3.4    10.4    -      -       -      +
    139D  GLY      3.0    56.6    +      -       -      -
    140D  TYR      3.7     9.0    -      -       -      -
    141D  ASN*     3.9    16.8    -      -       +      -
    157D  ARG*     5.2     1.1    -      -       +      -
    158D  LEU*     1.3    75.5    -      -       -      +
    160D  THR*     1.3    74.6    +      -       -      +
    161D  ARG*     3.8     8.3    -      -       +      -
    174D  LYS*     3.5    28.3    -      -       +      -
    175D  PRO      3.3    14.6    -      -       -      +
    176D  TRP*     3.9    10.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 160 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    136D  VAL*     5.0     3.6    -      -       +      -
    137D  GLU      3.1    17.3    -      -       -      +
    138D  MET*     4.1    18.2    -      -       +      +
    159D  TYR*     1.3    79.7    +      -       -      +
    161D  ARG*     1.3    60.1    +      -       -      +
    162D  LEU*     3.6    32.8    -      -       +      -
    174D  LYS*     3.2     6.8    -      -       -      +
    175D  PRO*     3.0    40.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 161 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16B  GLY      5.4     1.2    +      -       -      -
     18B  ILE*     3.8    26.7    -      -       -      +
     19B  ILE*     3.9     4.9    -      -       -      +
     35D  TYR*     3.7    17.7    +      -       -      -
    135D  ASP*     3.0    34.4    +      -       -      +
    136D  VAL*     3.6     3.3    -      -       -      -
    137D  GLU*     2.7    71.4    +      -       +      +
    159D  TYR*     3.8    13.3    -      -       +      -
    160D  THR*     1.3    73.7    -      -       -      +
    162D  LEU*     1.3    62.9    +      -       -      +
    163D  MET*     3.7    22.2    -      -       -      +
    172D  GLU*     3.0    45.8    +      -       +      +
    173D  VAL      3.6     3.4    -      -       -      +
    174D  LYS*     4.3    11.7    -      -       +      +
    198D  LYS*     5.7     0.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 162 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    133D  LEU*     4.3    14.1    -      -       +      -
    135D  ASP      3.4     3.4    -      -       -      +
    136D  VAL*     3.8    28.9    -      -       +      -
    160D  THR*     3.6    27.1    -      -       +      -
    161D  ARG*     1.3    76.7    -      -       -      +
    163D  MET*     1.3    59.8    +      -       -      +
    171D  VAL      3.9     1.0    -      -       -      +
    172D  GLU*     3.3     5.8    -      -       -      +
    173D  VAL*     2.9    55.4    +      -       +      +
    175D  PRO*     5.3     5.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 163 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  VAL*     5.1     0.4    -      -       +      -
     15B  ARG      4.6     3.4    -      -       -      +
     16B  GLY*     3.6     9.0    -      -       -      +
     17B  SER*     3.5    30.5    -      -       -      +
    133D  LEU*     3.5     5.5    -      -       -      +
    134D  ARG*     2.7    47.2    +      -       +      -
    135D  ASP*     3.0    36.6    +      -       +      +
    161D  ARG*     3.7    22.4    -      -       -      +
    162D  LEU*     1.3    74.0    -      -       -      +
    164D  ALA*     1.3    72.6    +      -       -      +
    165D  GLU*     4.3     4.7    -      -       -      +
    170D  LEU*     4.0    32.3    -      -       +      -
    171D  VAL      3.5     2.9    -      -       -      +
    172D  GLU*     4.6     4.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 164 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131D  TRP*     3.9    22.5    -      -       +      -
    132D  THR      3.3    13.9    -      -       -      +
    133D  LEU*     4.0    16.2    -      -       +      +
    162D  LEU      4.3     0.4    -      -       -      -
    163D  MET*     1.3    80.0    -      -       -      +
    165D  GLU*     1.3    60.1    +      -       -      +
    170D  LEU*     3.5     2.4    -      -       -      -
    171D  VAL*     2.8    36.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 165 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     14B  VAL*     4.5     7.0    -      -       -      +
     15B  ARG*     4.0    19.8    +      -       -      +
    130D  GLY      3.9     0.5    -      -       -      +
    131D  TRP*     3.3     6.5    -      -       -      -
    132D  THR*     2.9    43.7    +      -       -      +
    134D  ARG*     3.0    41.0    +      -       +      +
    163D  MET*     4.7     6.5    -      -       -      +
    164D  ALA*     1.3    73.2    -      -       -      +
    166D  ASN*     1.3    64.9    +      -       -      +
    167D  GLY      5.4     2.9    -      -       -      +
    169D  TRP      3.4    12.3    -      -       -      +
    170D  LEU*     4.9     3.4    -      -       +      -
    269D  PHE*     6.3     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 166 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129D  ALA      5.0     1.0    +      -       -      -
    130D  GLY*     3.4    23.7    +      -       -      +
    131D  TRP*     3.6    41.4    -      -       +      +
    165D  GLU*     1.3    80.3    -      -       -      +
    167D  GLY*     1.3    68.4    +      -       -      +
    168D  ASN      3.1     1.0    +      -       -      -
    169D  TRP*     3.0    31.2    +      -       -      +
----------------------------------------------------------
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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