Contacts of the strand formed by residues 75 - 85 (chain C) in PDB entry 1FL7


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 75 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  ARG*     4.4    43.1    +      -       +      +
     68C  VAL      3.1    11.0    -      -       -      +
     69C  THR*     3.8    28.7    -      -       +      +
     73C  GLY      3.6     5.1    +      -       -      +
     74C  PHE*     1.3    75.3    -      -       -      +
     76C  VAL*     1.3    65.4    +      -       -      +
     38D  VAL      4.6     0.2    -      -       -      +
     39D  TYR*     3.7    14.4    -      -       -      -
     40D  LYS      5.6     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 76 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     18C  PHE*     3.7    36.1    -      -       +      -
     25C  ILE*     4.2    24.7    -      -       +      -
     67C  ARG*     4.7     4.3    -      -       -      +
     68C  VAL*     2.9    29.2    +      -       +      +
     70C  VAL*     4.1    25.1    -      -       +      -
     74C  PHE*     4.9     0.4    -      -       +      -
     75C  LYS*     1.3    79.5    -      -       -      +
     77C  GLU*     1.3    68.6    +      -       -      +
     78C  ASN      3.7     0.5    +      -       -      -
     38D  VAL*     3.1    18.4    -      -       +      +
     39D  TYR*     3.8    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 77 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25C  ILE*     3.9     4.9    -      -       -      +
     65C  TYR*     3.4    48.4    +      -       +      -
     66C  ASN      3.4     4.9    -      -       -      -
     67C  ARG*     3.5    21.2    +      -       -      +
     76C  VAL*     1.3    75.1    -      -       -      +
     78C  ASN*     1.3    60.0    +      -       -      +
     79C  HIS*     3.2    24.8    +      -       -      +
     36D  ASP*     4.1     5.0    -      -       -      +
     37D  LEU      4.1     0.2    -      -       -      -
     38D  VAL*     2.7    44.5    +      -       -      +
     40D  LYS*     3.1    37.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 78 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     25C  ILE*     3.2    15.2    -      -       +      -
     26C  LEU*     2.7    34.5    +      -       -      +
     65C  TYR*     3.6     3.0    -      -       -      -
     66C  ASN*     2.8    40.1    +      -       +      +
     68C  VAL*     4.3    11.0    -      -       +      +
     77C  GLU*     1.3    72.2    -      -       -      +
     79C  HIS*     1.3    66.8    +      -       -      +
     80C  THR*     3.6     4.5    -      -       -      +
      1I  NAG      1.4    60.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 79 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  LEU*     3.6    18.1    -      -       +      +
     26C  LEU*     3.1    33.4    +      -       -      +
     27C  GLN*     3.3     5.5    -      -       -      -
     28C  CYS*     2.8    33.7    +      -       -      -
     62C  ALA*     3.4    16.9    -      -       +      +
     65C  TYR*     3.7    10.3    -      -       +      -
     77C  GLU*     3.2    40.8    +      -       +      +
     78C  ASN*     1.3    77.2    -      -       -      +
     80C  THR*     1.3    61.9    +      -       -      +
     36D  ASP*     3.3    42.8    +      -       +      -
     38D  VAL*     4.0     3.0    -      -       +      +
      1I  NAG      3.9     2.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 80 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  LEU*     3.3    20.4    -      -       -      +
     64C  SER*     2.6    37.7    +      -       -      -
     65C  TYR*     4.1     6.1    -      -       -      -
     66C  ASN*     3.8    21.5    -      -       -      +
     78C  ASN      3.6     9.9    -      -       -      +
     79C  HIS*     1.3    79.8    -      -       -      +
     81C  ALA*     1.3    62.3    +      -       -      +
      1I  NAG      4.4    14.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 81 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12C  LEU*     4.1     3.1    -      -       -      +
     28C  CYS*     3.6     2.8    -      -       -      -
     62C  ALA*     3.5     6.6    -      -       -      -
     63C  LYS*     2.8    44.1    +      -       +      +
     64C  SER*     3.7    15.8    +      -       -      +
     80C  THR*     1.3    81.6    +      -       -      +
     82C  CYS*     1.3    65.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 82 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10C  CYS*     3.9    17.0    -      -       -      +
     11C  THR*     3.7    15.7    -      -       -      -
     12C  LEU*     3.3    28.8    -      -       -      +
     28C  CYS*     2.0    54.7    -      -       +      -
     61C  VAL      3.6     1.6    -      -       -      -
     63C  LYS*     4.2     6.1    +      -       -      +
     81C  ALA*     1.3    74.4    -      -       -      +
     83C  HIS*     1.3    66.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 83 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  LYS*     4.5    10.5    -      -       -      +
     83A  HIS*     4.9     9.5    -      -       +      +
     10C  CYS*     4.0     8.3    -      -       -      -
     59C  CYS      3.4     0.3    -      -       -      +
     61C  VAL*     3.0    33.1    +      -       +      +
     63C  LYS*     3.7    41.4    -      -       +      +
     82C  CYS*     1.3    76.7    -      -       -      +
     84C  CYS*     1.3    65.5    +      -       -      +
     85C  SER*     3.4    26.8    +      -       -      -
     91C  LYS*     3.1    38.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with CYS 84 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63A  LYS*     3.0    35.4    +      -       +      +
     10C  CYS*     3.9    11.0    -      -       -      +
     31C  CYS      3.5    10.8    -      -       -      -
     32C  CYS*     2.0    51.4    -      -       +      -
     33C  PHE      5.0     0.7    -      -       -      +
     58C  THR*     4.2     8.3    -      -       -      +
     59C  CYS      3.3     5.2    -      -       -      -
     83C  HIS*     1.3    69.3    -      -       -      +
     85C  SER*     1.3    63.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 85 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     83A  HIS*     2.9    29.1    -      -       -      -
     84A  CYS      4.5     0.5    +      -       -      -
     57C  SER      5.3     0.2    -      -       -      -
     58C  THR*     3.1    13.4    -      -       -      -
     59C  CYS      2.7    37.4    +      -       -      +
     61C  VAL*     3.7     6.3    -      -       -      -
     83C  HIS*     3.4    31.8    +      -       -      -
     84C  CYS*     1.3    76.6    -      -       -      +
     86C  THR*     1.3    84.0    +      -       -      -
     91C  LYS*     4.1     7.2    -      -       -      +
     96D  VAL*     5.3     0.2    -      -       -      -
----------------------------------------------------------
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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