Contacts of the strand formed by residues 215 - 224 (chain A) in PDB entry 1QSV


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 LEU 215 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208A  GLU*     4.3    23.6    -      -       +      +
    209A  ALA      3.8    11.7    -      -       -      +
    210A  THR*     3.5    24.3    -      -       +      +
    214A  HIS*     1.3    88.4    +      -       -      +
    216A  TYR*     1.3    71.3    +      -       -      +
    217A  LYS*     3.0    25.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 216 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130A  ASP      4.8     0.4    -      -       -      -
    132A  GLY      2.8    40.0    +      -       -      -
    133A  ARG*     3.8    14.1    -      -       +      -
    134A  PRO*     3.5    21.3    -      -       +      -
    135A  PHE*     3.8    17.7    -      -       +      -
    138A  MET*     6.4     2.2    -      -       +      -
    209A  ALA      2.9    38.3    +      -       -      +
    211A  VAL*     3.9     8.7    -      -       +      -
    212A  ASN*     3.6    22.6    +      -       -      -
    214A  HIS*     3.1    49.0    +      +       -      -
    215A  LEU*     1.3    78.7    -      -       -      +
    217A  LYS*     1.3    65.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 217 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  PHE*     3.9     5.0    -      -       -      -
    138A  MET*     4.1    10.6    -      -       -      +
    139A  TYR*     3.7    23.9    -      -       +      +
    206A  THR*     4.3     8.7    -      -       +      -
    207A  CYS      3.2    13.9    -      -       -      +
    208A  GLU*     4.2    12.8    -      -       +      -
    215A  LEU*     3.0    41.8    +      -       +      +
    216A  TYR*     1.3    79.4    -      -       -      +
    218A  THR*     1.3    68.2    +      -       -      +
    219A  ASN*     4.3    13.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 218 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    135A  PHE*     3.8    37.2    -      -       +      -
    137A  GLU      4.4     0.2    -      -       -      +
    138A  MET*     3.9     7.9    -      -       +      -
    139A  TYR*     2.9    37.5    +      -       -      +
    158A  CYS*     4.1     1.3    -      -       +      -
    206A  THR*     3.6     1.5    -      -       -      -
    207A  CYS*     2.9    30.6    +      -       +      +
    217A  LYS*     1.3    78.4    -      -       -      +
    219A  ASN*     1.3    63.1    +      -       -      +
    220A  TYR*     3.1    35.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 219 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    139A  TYR*     3.2    42.6    +      -       +      +
    143A  PRO*     3.7    24.4    -      -       +      +
    144A  GLU      3.1    18.7    +      -       -      -
    204A  LEU*     4.1    13.7    -      -       +      +
    205A  LEU      3.5     4.4    +      -       -      +
    206A  THR*     2.9    34.5    +      -       -      +
    217A  LYS*     4.3     7.0    -      -       -      +
    218A  THR*     1.3    75.6    +      -       -      +
    220A  TYR*     1.3    71.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 220 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137A  GLU*     3.8     6.3    +      -       +      +
    138A  MET*     4.4     2.3    -      -       -      -
    139A  TYR      5.2     1.8    -      -       -      -
    144A  GLU*     3.5    45.3    -      -       +      -
    146A  ILE*     4.1    10.8    -      -       +      -
    156A  ILE*     3.6    28.3    -      -       +      -
    157A  PRO*     2.8    34.1    +      -       +      -
    158A  CYS*     3.3    11.0    -      -       +      +
    203A  GLY      3.5     0.2    -      -       -      +
    204A  LEU*     4.3     1.8    -      -       -      -
    205A  LEU*     2.9    43.1    +      -       +      +
    207A  CYS*     3.7    19.1    -      -       -      -
    218A  THR*     3.1    43.4    +      -       +      +
    219A  ASN*     1.3    75.0    -      -       -      +
    221A  LEU*     1.3    62.1    +      -       -      +
    222A  THR*     3.4     3.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 221 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    143A  PRO*     3.9    14.7    -      -       +      +
    144A  GLU      2.9     7.7    +      -       -      +
    145A  ILE*     3.5    29.4    -      -       +      -
    146A  ILE      2.9    25.7    +      -       -      -
    203A  GLY*     3.6    11.9    -      -       -      +
    204A  LEU*     4.3    13.7    -      -       +      -
    220A  TYR*     1.3    69.6    -      -       -      +
    222A  THR*     1.3    62.6    +      -       -      +
    223A  HIS*     3.3    26.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 222 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  ILE*     3.7    13.9    -      -       +      -
    148A  MET*     3.8     7.7    -      -       -      +
    154A  LEU*     4.2    10.5    -      -       +      -
    156A  ILE*     3.8    25.1    -      -       +      -
    201A  GLU      2.9    25.1    +      -       -      +
    202A  ILE*     3.7    13.5    -      -       -      +
    203A  GLY      2.8    38.6    +      -       -      -
    205A  LEU*     3.1    18.9    -      -       +      +
    220A  TYR      4.1     3.1    -      -       -      +
    221A  LEU*     1.3    72.9    -      -       -      +
    223A  HIS*     1.3    60.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 223 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  ILE*     4.3    13.9    -      -       +      -
    146A  ILE      2.9    10.5    +      -       -      +
    147A  HIS*     3.4    31.0    +      +       -      -
    148A  MET*     2.9    27.9    +      -       -      +
    202A  ILE*     5.5     0.2    -      -       -      -
    221A  LEU*     3.3    18.1    +      -       +      +
    222A  THR*     1.3    71.7    -      -       -      +
    224A  ARG*     1.3    87.5    +      -       -      +
    225A  GLN*     3.1     6.9    +      -       -      -
    226A  THR*     4.4    14.6    +      -       +      +
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Residues in contact with ARG 224 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  MET*     3.8    11.4    -      -       +      +
    149A  THR*     5.6     0.7    -      -       -      -
    150A  GLU*     5.7     0.7    -      -       +      +
    202A  ILE*     4.6    27.3    -      -       +      +
    222A  THR      3.9     3.2    +      -       -      -
    223A  HIS*     1.3    86.9    +      -       -      +
    225A  GLN*     1.3    69.7    +      -       -      +
    226A  THR*     3.7     3.3    +      -       -      +
    228A  THR*     3.1    29.0    +      -       -      +
    229A  ILE*     3.5    44.9    -      -       -      +
----------------------------------------------------------
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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