Contacts of the strand formed by residues 754 - 763 (chain D) in PDB entry 4X52


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 PHE 754 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    747D  PHE*     4.3    11.5    -      -       +      -
    748D  LYS*     5.5     5.2    -      -       -      +
    751D  MET*     3.6    48.1    -      -       +      +
    752D  LYS      3.1     6.2    +      -       -      +
    753D  ASN*     1.3    91.0    -      -       +      +
    755D  LYS*     1.3    60.6    +      -       -      +
    756D  ILE      4.4     0.5    +      -       -      -
    825D  ILE*     3.8    18.8    -      -       +      -
    828D  HIS*     3.4    41.5    -      +       -      -
    893D  TYR*     3.7    20.0    -      +       +      -
    894D  THR      3.3     5.4    -      -       -      +
    895D  GLU*     3.7    31.4    -      -       +      -
    896D  ASP*     3.5     7.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 755 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    754D  PHE*     1.3    73.1    -      -       -      +
    756D  ILE*     1.3    72.3    +      -       -      +
    757D  GLU*     3.3    33.5    +      -       -      +
    893D  TYR*     3.2     6.3    -      -       -      -
    894D  THR*     2.8    41.3    +      -       -      +
    895D  GLU      5.9     0.2    -      -       -      -
    896D  ASP*     3.8    14.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 756 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    740D  TYR*     3.5    25.0    +      -       -      +
    744D  SER*     3.4    41.1    -      -       -      +
    747D  PHE*     3.6    36.8    -      -       +      -
    748D  LYS*     4.4     6.5    -      -       +      -
    754D  PHE      4.3     0.8    +      -       -      +
    755D  LYS*     1.3    85.0    -      -       -      +
    757D  GLU*     1.3    62.7    +      -       -      +
    758D  LYS      3.7    10.8    -      -       -      +
    759D  ILE*     3.7    24.5    -      -       +      -
    891D  ILE*     4.0     8.5    -      -       +      -
    892D  GLU      3.6     5.2    -      -       -      +
    893D  TYR*     4.2     1.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 757 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    729A  LYS*     5.9     1.0    +      -       -      +
    732D  GLU*     4.8     1.6    -      -       -      +
    740D  TYR*     5.0     2.7    +      -       -      -
    755D  LYS*     3.3    33.2    +      -       -      +
    756D  ILE*     1.3    74.5    -      -       -      +
    758D  LYS*     1.3    68.7    +      -       +      +
    892D  GLU*     2.7    22.9    +      -       +      +
    893D  TYR*     4.1    16.2    -      -       -      +
    894D  THR*     2.7    35.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 758 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728A  TYR      5.5     1.6    +      -       -      -
    729A  LYS*     3.6    17.4    -      -       -      +
    732D  GLU*     2.8    40.0    +      -       -      +
    740D  TYR*     4.7     3.8    -      -       -      -
    756D  ILE*     3.6     3.5    -      -       -      +
    757D  GLU*     1.3    87.3    -      -       +      +
    759D  ILE*     1.3    68.3    +      -       -      +
    760D  LYS*     3.9    24.7    -      -       +      +
    890D  VAL      3.9     0.6    -      -       -      +
    891D  ILE*     3.5     3.1    -      -       -      -
    892D  GLU*     2.9    57.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 759 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    732D  GLU*     3.6     5.5    +      -       -      +
    733D  ILE*     3.0    31.0    +      -       +      +
    740D  TYR*     3.7    61.4    -      -       +      +
    743D  VAL*     3.9    25.8    -      -       +      -
    744D  SER*     3.9     9.0    -      -       -      +
    756D  ILE*     3.7    17.9    -      -       +      -
    758D  LYS*     1.3    79.2    -      -       -      +
    760D  LYS*     1.3    64.5    +      -       -      +
    889D  TYR*     4.1    26.5    -      -       +      -
    890D  VAL      3.5     6.7    -      -       -      +
    891D  ILE*     4.3     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 760 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    730D  LEU*     3.7    42.2    -      -       +      +
    731D  SER      3.4     6.3    -      -       -      +
    732D  GLU*     4.0    22.2    -      -       +      +
    733D  ILE*     4.7     0.2    -      -       -      -
    758D  LYS*     3.9    31.2    -      -       +      +
    759D  ILE*     1.3    80.7    -      -       -      +
    761D  LYS*     1.3    61.1    +      -       -      +
    889D  TYR*     3.1    10.8    -      -       -      +
    890D  VAL*     2.9    41.3    +      -       +      +
    892D  GLU*     4.7    11.0    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 761 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    732A  GLU*     4.9     7.7    +      -       -      +
    758A  LYS*     5.7     3.7    -      -       -      +
    729D  LYS      3.7     0.5    -      -       -      +
    730D  LEU*     3.4     6.5    -      -       -      -
    731D  SER*     2.8    34.6    +      -       -      +
    733D  ILE*     3.7    29.2    -      -       +      +
    737D  HIS*     6.4     0.2    -      -       -      +
    739D  GLU*     3.0    38.2    +      -       -      +
    760D  LYS*     1.3    71.9    -      -       -      +
    762D  ILE*     1.3    71.4    +      -       -      +
    763D  GLU*     3.9     2.3    +      -       +      +
    888D  GLN*     3.7    11.9    -      -       -      +
    889D  TYR*     3.9    14.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 762 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    728D  TYR*     4.9     0.7    -      -       +      -
    729D  LYS      3.6     6.1    -      -       -      +
    730D  LEU*     3.6    20.0    -      -       +      -
    761D  LYS*     1.3    80.6    -      -       -      +
    763D  GLU*     1.3    70.1    +      -       -      +
    764D  ASN*     4.5     2.7    -      -       +      +
    798D  CYS*     3.8    30.7    -      -       +      +
    841D  PHE*     3.6    32.5    -      -       +      -
    886D  TYR*     2.9    19.0    +      -       +      +
    887D  PRO*     3.5    38.6    -      -       +      +
    888D  GLN*     2.9    13.5    +      -       -      +
    889D  TYR*     3.8     9.6    -      -       -      +
    890D  VAL*     3.7     8.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 763 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    758A  LYS*     4.2    23.4    +      -       -      -
    728D  TYR*     3.1     6.9    -      -       -      +
    729D  LYS*     2.8    73.1    +      -       +      +
    761D  LYS*     3.9     2.2    +      -       +      +
    762D  ILE*     1.3    74.9    -      -       -      +
    764D  ASN*     1.3    59.7    +      -       -      +
    765D  SER*     4.1     5.6    -      -       -      +
    768D  LEU*     6.5     0.7    -      -       +      -
    886D  TYR*     3.6     2.2    -      -       -      +
----------------------------------------------------------
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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