Contacts of the strand formed by residues 50 - 63 (chain D) 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 THR 50 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  SER*     3.5     9.0    -      -       -      -
     55C  SER*     3.6    16.2    -      -       -      +
     57C  SER*     3.2    39.0    +      -       -      -
     87C  CYS*     5.0     2.4    -      -       -      -
     32D  CYS*     3.7     9.6    -      -       -      -
     48D  GLN      4.1     4.0    +      -       -      -
     49D  LYS*     1.3    80.7    +      -       -      +
     51D  CYS*     1.3    81.6    +      -       -      +
     52D  THR*     3.2    10.9    +      -       +      +
     85D  GLY      2.9    28.3    +      -       -      -
     87D  CYS*     5.1    10.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 51 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34C  SER*     2.8    32.3    +      -       -      +
     35C  ARG*     3.8    14.2    -      -       -      +
     55C  SER*     4.3     0.2    +      -       -      -
      3D  CYS*     2.0    59.5    -      -       +      -
     28D  CYS*     4.1     3.4    -      -       -      -
     29D  ALA*     3.5    29.4    -      -       -      -
     30D  GLY      4.2     2.9    -      -       -      +
     32D  CYS*     3.5     5.7    -      -       -      -
     50D  THR*     1.3    82.1    -      -       -      +
     52D  THR*     1.3    64.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 52 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  ALA*     4.0    12.4    -      -       -      +
     53C  VAL*     5.5     0.2    -      -       -      +
     55C  SER*     4.9     7.2    -      -       -      -
     28D  CYS*     3.6    14.1    -      -       -      -
     50D  THR*     3.2    22.0    -      -       -      +
     51D  CYS*     1.3    81.2    -      -       -      +
     53D  PHE*     1.3    95.8    +      -       -      +
     83D  HIS*     3.0    36.9    +      -       +      +
     85D  GLY      4.0    10.5    -      -       -      +
     86D  LYS      4.3    10.8    -      -       -      +
     87D  CYS*     5.1     5.9    -      -       -      -
     88D  ASP      5.7     1.3    +      -       -      +
     92D  THR*     5.0     3.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 53 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36C  ALA*     4.4     2.0    -      -       -      +
     53C  VAL*     3.9    11.0    -      -       +      -
     27D  TRP*     3.6    31.0    -      +       +      -
     28D  CYS*     3.5    11.4    -      -       -      +
     52D  THR*     1.3    94.1    +      -       -      +
     54D  LYS*     1.3    66.7    +      -       -      +
     55D  GLU      3.9     7.0    -      -       -      +
     56D  LEU*     3.4    44.2    -      -       +      -
     79D  ALA*     4.4     7.2    -      -       +      -
     81D  GLN      3.5     7.6    -      -       -      +
     83D  HIS*     3.6     8.2    -      -       -      -
     88D  ASP*     4.6    11.0    -      -       +      -
     91D  SER*     3.3    21.1    -      -       -      -
     92D  THR*     3.5    21.8    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 54 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52D  THR      3.6     0.2    +      -       -      -
     53D  PHE*     1.3    81.1    -      -       -      +
     55D  GLU*     1.3    76.0    +      -       +      +
     81D  GLN*     2.6    47.2    +      -       -      +
     83D  HIS*     3.3    48.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 55 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53D  PHE*     4.0     2.1    -      -       -      -
     54D  LYS*     1.3    96.4    -      -       +      +
     56D  LEU*     1.3    57.6    +      -       -      +
     79D  ALA*     4.1     0.7    -      -       -      -
     80D  THR*     2.7    49.2    +      -       +      +
     81D  GLN*     3.0    19.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 56 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53C  VAL*     3.8    24.0    -      -       +      -
     27D  TRP*     4.0     5.6    -      -       +      -
     53D  PHE*     3.4    41.5    -      -       +      -
     55D  GLU*     1.3    77.8    +      -       -      +
     57D  VAL*     1.3    73.7    +      -       -      +
     58D  TYR*     4.8    14.1    -      -       +      +
     77D  PRO*     4.2     9.2    -      -       +      -
     78D  VAL      3.2    17.0    -      -       -      +
     79D  ALA*     4.3     2.0    -      -       -      -
     80D  THR*     3.5     1.3    -      -       -      -
     91D  SER*     6.0     1.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 57 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56D  LEU*     1.3    76.3    -      -       -      +
     58D  TYR*     1.3    74.4    +      -       -      +
     59D  GLU*     4.6     8.5    -      -       +      +
     77D  PRO*     3.3     2.8    -      -       -      +
     78D  VAL*     2.5    56.3    +      -       +      +
     79D  ALA      6.0     0.2    -      -       -      -
     80D  THR*     3.0    24.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 58 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52C  ASN*     2.7    29.3    +      -       -      +
     53C  VAL*     5.5     0.3    -      -       -      +
     56D  LEU*     4.8    15.5    -      -       +      +
     57D  VAL*     1.3    86.6    -      -       -      +
     59D  GLU*     1.3    68.1    +      -       -      +
     75D  THR*     4.2    18.8    -      -       -      -
     76D  TYR*     3.5     6.5    -      -       -      -
     77D  PRO*     3.7    34.5    -      -       +      +
      1H  NAG      2.4    42.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 59 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57D  VAL*     4.6     8.3    -      -       +      +
     58D  TYR*     1.3    79.2    -      -       -      +
     60D  THR*     1.3    66.1    +      -       -      +
     75D  THR*     2.9     3.6    -      -       -      -
     76D  TYR*     2.7    63.6    +      -       +      +
     78D  VAL*     3.8    24.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 60 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59D  GLU*     1.3    75.4    -      -       -      +
     61D  VAL*     1.3    75.4    +      -       -      +
     73D  LEU*     3.9    37.9    -      -       +      -
     74D  TYR      3.3    10.1    -      -       -      +
     75D  THR*     2.8    25.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 61 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12D  ILE*     5.1     9.0    -      -       +      -
     21D  ILE*     5.8     2.5    -      -       +      -
     23D  ILE*     3.3    20.2    -      -       +      -
     60D  THR*     1.3    85.7    -      -       -      +
     62D  ARG*     1.3    74.2    +      -       -      +
     63D  VAL*     3.3    11.2    +      -       +      +
     73D  LEU*     3.4     1.0    -      -       -      -
     74D  TYR*     2.9    30.1    +      -       +      +
     76D  TYR*     3.3    30.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 62 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21D  ILE*     5.5     0.2    -      -       -      +
     61D  VAL*     1.3    80.8    -      -       -      +
     63D  VAL*     1.3    63.5    +      -       -      +
     64D  PRO*     3.9     3.5    -      -       -      +
     71D  ASP*     3.2    29.5    +      -       +      +
     72D  SER      3.1     7.6    -      -       -      +
     73D  LEU*     3.3    25.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 63 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12D  ILE*     3.6    31.0    -      -       +      +
     14D  LYS*     4.4    21.5    -      -       +      +
     19D  PHE*     5.2     0.4    -      -       +      -
     21D  ILE*     3.4    20.0    -      -       +      -
     61D  VAL*     3.9     4.5    -      -       +      +
     62D  ARG*     1.3    73.8    -      -       -      +
     64D  PRO*     1.3    87.9    -      -       +      +
     71D  ASP*     3.1     5.7    -      -       -      +
     72D  SER*     2.7    39.9    +      -       -      +
     73D  LEU      5.0     0.4    -      -       -      -
     74D  TYR*     3.7    20.6    -      -       +      +
----------------------------------------------------------
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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