Contacts of the strand formed by residues 78 - 83 (chain L) in PDB entry 1FSK


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 THR 78 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21L  SER*     4.7     1.7    -      -       -      -
     22L  CYS      3.2    19.8    +      -       -      -
     23L  LYS*     3.6    18.4    -      -       +      +
     29L  PHE*     3.6     9.4    -      -       -      -
     72L  VAL*     3.5     1.0    -      -       -      -
     73L  ASP*     2.9    26.3    +      -       -      -
     76L  SER*     2.6    41.1    -      -       -      +
     77L  SER*     1.3    74.1    -      -       -      +
     79L  ALA*     1.3    62.6    +      -       -      +
     80L  TYR*     3.4    27.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 79 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21L  SER*     3.6     1.6    -      -       -      -
     22L  CYS*     2.8    39.3    +      -       +      +
     29L  PHE*     4.0     8.6    -      -       +      -
     34L  ILE*     4.4    21.1    -      -       +      -
     36L  TRP*     3.7    16.2    -      -       +      +
     51L  ILE*     5.0     2.2    -      -       +      -
     71L  THR      3.5    11.0    -      -       -      +
     72L  VAL*     4.1    11.0    -      -       +      +
     78L  THR*     1.3    72.8    +      -       -      +
     80L  TYR*     1.3    64.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 80 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19L  ILE*     3.7    28.3    -      -       +      -
     20L  LEU      3.0     4.5    -      -       -      +
     21L  SER*     3.7    23.1    -      -       -      -
     36L  TRP*     4.0     5.1    +      -       -      -
     69L  THR      3.6     2.1    -      -       -      +
     70L  LEU*     3.3     4.5    -      -       -      +
     71L  THR*     2.8    51.2    +      -       -      +
     72L  VAL*     4.5     3.4    -      -       -      -
     73L  ASP*     4.1    16.4    +      -       +      -
     76L  SER*     4.3     4.7    +      -       -      -
     78L  THR*     3.4    36.4    +      -       -      +
     79L  ALA*     1.3    76.9    -      -       -      +
     81L  MET*     1.3    61.2    +      -       -      +
     82L  GLN*     4.0     2.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 81 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     19L  ILE*     3.8     0.2    -      -       -      -
     20L  LEU*     2.8    43.8    +      -       +      +
     36L  TRP*     3.5    45.1    -      -       +      -
     48L  VAL*     3.4    34.5    -      -       +      -
     64L  PHE*     5.0     4.7    -      -       +      -
     68L  ALA*     3.7    17.9    -      -       +      -
     69L  THR      3.9     2.2    -      -       -      -
     70L  LEU*     3.9    12.1    -      -       +      -
     80L  TYR*     1.3    73.0    -      -       -      +
     82L  GLN*     1.3    64.3    +      -       -      +
     83L  VAL*     4.2     9.0    -      -       +      -
     94L  TYR*     4.0    33.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 82 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     17L  SER*     3.1    17.5    +      -       -      -
     18L  VAL      3.4     3.1    -      -       -      +
     19L  ILE*     3.3    31.7    -      -       +      +
     67L  LYS      3.7     1.0    -      -       -      +
     68L  ALA*     3.2     6.4    -      -       -      -
     69L  THR*     2.9    49.9    +      -       +      +
     71L  THR*     6.1     0.2    -      -       -      +
     80L  TYR*     5.4     2.0    -      -       +      +
     81L  MET*     1.3    75.9    -      -       -      +
     83L  VAL*     1.3    65.9    +      -       -      +
     84L  ASN*     2.4    37.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 83 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16L  ALA      4.3     1.0    -      -       -      +
     17L  SER*     3.7     2.6    +      -       -      -
     18L  VAL*     2.9    47.9    +      -       +      +
     20L  LEU*     4.8     7.9    -      -       +      -
     67L  LYS*     3.8    24.0    -      -       +      +
     68L  ALA*     4.6     1.6    -      -       +      +
     81L  MET*     4.2    24.5    -      -       +      -
     82L  GLN*     1.3    82.6    -      -       -      +
     84L  ASN*     1.3    74.9    +      -       -      +
     86L  PRO*     4.5     5.6    -      -       +      -
     90L  ASP*     4.1    15.5    -      -       +      +
     94L  TYR*     5.0    11.2    -      -       +      +
----------------------------------------------------------
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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