Contacts of the strand formed by residues 54 - 61 (chain F) in PDB entry 5X11


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 ILE 54 (chain F).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9F  LEU*     5.1     4.3    -      -       +      -
     12F  LEU*     4.9    11.4    -      -       +      -
     45F  LEU*     5.7     1.8    -      -       +      +
     48F  LEU*     3.2    22.3    +      -       +      +
     49F  THR*     3.5    27.4    -      -       -      +
     52F  GLY*     3.3     2.6    -      -       -      -
     53F  PHE*     1.3    80.2    -      -       +      +
     55F  THR*     1.3    60.6    +      -       -      +
     70F  TYR*     4.3    18.8    -      -       +      -
     71F  THR      3.5    12.3    -      -       -      +
     72F  LEU*     5.2     0.2    -      -       -      -
     73F  THR*     4.0     4.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with THR 55 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49F  THR*     4.7     3.8    -      -       -      -
     54F  ILE*     1.3    74.6    -      -       -      +
     56F  PHE*     1.3    62.8    +      -       -      +
     70F  TYR*     3.4     6.0    -      -       -      -
     71F  THR*     3.0    36.5    +      -       -      -
     73F  THR*     3.8    16.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 56 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49F  THR*     4.1    21.9    -      -       +      +
     55F  THR*     1.3    76.5    -      -       -      +
     57F  ARG*     1.3    66.0    +      -       -      +
     58F  THR*     4.2    12.3    -      -       -      -
     68F  LYS*     3.7    42.8    -      -       +      -
     69F  MET      3.2    13.2    -      -       -      +
     70F  TYR*     3.5    36.3    -      +       +      -
----------------------------------------------------------
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Residues in contact with ARG 57 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56F  PHE*     1.3    78.5    -      -       -      +
     58F  THR*     1.3    62.7    +      -       -      +
     59F  THR*     3.7    19.6    +      -       -      +
     67F  LYS      3.7     0.2    -      -       -      +
     68F  LYS*     3.4     3.8    -      -       -      -
     69F  MET*     2.9    55.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 58 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56F  PHE*     4.2    12.0    -      -       +      -
     57F  ARG*     1.3    75.5    -      -       -      +
     59F  THR*     1.3    62.0    +      -       -      +
     60F  ILE*     5.6     0.5    -      -       -      +
     66F  GLU*     4.1    36.0    -      -       +      +
     67F  LYS      3.4    13.0    -      -       -      +
     68F  LYS*     4.5    11.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 59 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57F  ARG*     3.7    19.7    +      -       -      -
     58F  THR*     1.3    75.9    -      -       -      +
     60F  ILE*     1.3    68.7    +      -       -      +
     61F  GLN*     5.0     1.1    -      -       +      +
     66F  GLU*     3.7     4.1    -      -       -      +
     67F  LYS*     2.9    54.0    +      -       +      +
     69F  MET*     3.9    30.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 60 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58F  THR      5.6     0.4    -      -       -      +
     59F  THR*     1.3    82.0    +      -       -      +
     61F  GLN*     1.3    64.1    +      -       -      +
     62F  GLY      3.9     8.6    +      -       -      +
     63F  THR      5.1    10.8    -      -       -      +
     64F  LYS      5.5     0.9    -      -       -      -
     65F  LEU      3.4     9.2    -      -       -      +
     66F  GLU*     4.6    11.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 61 (chain F). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59F  THR*     4.1     3.1    -      -       +      +
     60F  ILE*     1.3    71.0    -      -       -      +
     62F  GLY*     1.3    69.8    +      -       -      +
     64F  LYS      3.9     0.2    +      -       -      -
     65F  LEU*     2.9    49.8    +      -       +      +
     67F  LYS*     3.5    37.0    +      -       -      +
     25M    T      3.8     7.0    +      -       -      -
     26M    T      3.4    24.2    +      -       -      -
      7N    A      3.6    10.3    +      -       -      +
----------------------------------------------------------
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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