Contacts of the strand formed by residues 366 - 370 (chain A) in PDB entry 1F7U


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 LYS 366 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    144A  LYS      3.3     2.4    +      -       -      -
    145A  VAL*     3.1    22.3    -      -       +      -
    146A  ILE      3.0    21.8    +      -       -      -
    176A  TYR*     3.5    31.4    +      -       +      +
    181A  TRP*     3.8    23.6    -      -       +      -
    364A  PHE*     3.3    10.9    -      -       -      +
    365A  ASP*     1.3    82.8    -      -       -      +
    367A  MET*     1.3    65.1    +      -       -      +
    368A  ILE*     3.9     8.5    -      -       +      +
    396A  ASP*     3.5    14.5    +      -       +      +
    398A  GLN*     2.8    34.3    +      -       +      +
    545A  HIS*     4.5     0.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 367 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    146A  ILE*     3.3    23.6    -      -       +      +
    148A  GLU*     5.8     0.7    -      -       +      +
    355A  ALA*     4.1    10.5    -      -       +      -
    358A  ARG*     3.5    37.2    -      -       -      +
    364A  PHE*     3.8    39.3    -      -       +      -
    366A  LYS*     1.3    76.2    -      -       -      +
    368A  ILE*     1.3    66.0    +      -       -      +
    369A  TYR*     3.0    39.4    +      -       +      +
    396A  ASP      3.0     7.9    +      -       -      +
    397A  LEU*     3.4    13.0    -      -       +      -
    398A  GLN*     2.9    27.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 368 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    145A  VAL*     4.2     7.2    -      -       +      -
    146A  ILE      2.7    12.1    +      -       -      +
    147A  ILE*     3.4    14.0    -      -       +      +
    148A  GLU*     2.8    28.9    +      -       -      +
    172A  LEU*     4.4     7.6    -      -       +      -
    176A  TYR*     3.6    39.5    -      -       +      +
    366A  LYS*     3.9    17.3    -      -       +      +
    367A  MET*     1.3    76.5    -      -       -      +
    369A  TYR*     1.3    64.7    +      -       -      +
    370A  VAL*     3.9    13.0    +      -       +      -
    398A  GLN*     3.5    12.8    -      -       +      +
    400A  VAL*     3.5    29.8    -      -       +      -
    545A  HIS*     4.2     9.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 369 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  GLU*     3.3    32.1    -      -       +      -
    351A  ASP*     4.1     3.3    +      -       -      -
    355A  ALA*     3.7    17.5    +      -       -      +
    358A  ARG*     3.5    10.2    +      -       -      -
    367A  MET*     3.0    42.9    -      -       +      +
    368A  ILE*     1.3    76.4    -      -       -      +
    370A  VAL*     1.3    60.3    +      -       -      +
    371A  ILE*     3.4    19.5    +      -       +      -
    379A  ALA*     6.3     0.4    -      -       +      -
    382A  PHE*     3.6    26.9    -      +       -      -
    383A  PHE*     4.0    22.2    -      +       +      -
    397A  LEU*     4.0     7.6    -      -       +      +
    398A  GLN      2.9    17.6    +      -       -      +
    399A  HIS*     3.6     6.6    -      -       +      -
    400A  VAL      2.9    25.9    +      -       -      +
    800A  ARG*     3.6    15.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 370 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    147A  ILE*     4.2     5.4    -      -       +      -
    148A  GLU*     2.9    24.2    +      -       -      +
    149A  PHE*     3.9     7.3    -      -       +      -
    150A  SER      4.6     0.2    +      -       -      -
    151A  SER*     6.2     0.2    -      -       -      -
    165A  SER*     2.9    44.8    +      -       -      +
    168A  ILE*     3.8    19.7    -      -       +      -
    169A  GLY*     4.0    19.5    -      -       -      -
    172A  LEU*     4.2     9.4    -      -       +      -
    368A  ILE*     4.2    16.8    -      -       +      -
    369A  TYR*     1.3    70.6    -      -       -      +
    371A  ILE*     1.3    64.7    +      -       -      +
    400A  VAL*     3.3    11.2    -      -       +      +
    402A  PHE*     4.1     6.7    -      -       +      -
    800A  ARG*     5.3     1.0    -      -       -      -
----------------------------------------------------------
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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