Contacts of the helix formed by residues 826 - 846 (chain B) in PDB entry 5XA0


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 826 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    825B  SER*     1.3    73.8    -      -       -      +
    827B  ASP*     1.3    61.8    +      -       -      +
    829B  ILE*     3.2    14.7    -      -       +      +
    830B  LYS*     2.6    48.4    +      -       +      +
    833B  PHE*     3.9    14.4    -      -       +      -
    877B  GLY*     4.7     7.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 827 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    825B  SER      3.2     8.0    -      -       -      +
    826B  LYS*     1.3    75.7    -      -       -      +
    828B  GLU*     1.3    66.7    +      -       +      +
    829B  ILE*     4.3     1.1    -      -       +      +
    830B  LYS*     2.6    29.9    +      -       -      +
    831B  GLU*     3.6     2.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 828 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    827B  ASP*     1.3    76.8    -      -       +      +
    829B  ILE*     1.3    66.1    +      -       -      +
    830B  LYS      3.0     0.9    +      -       -      -
    831B  GLU*     3.1    21.0    +      -       -      +
    832B  ARG      4.1     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 829 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    735B  TYR*     5.7    10.1    -      -       +      -
    826B  LYS*     3.2    14.1    +      -       +      +
    827B  ASP*     4.3     0.8    -      -       +      +
    828B  GLU*     1.3    77.7    -      -       -      +
    830B  LYS*     1.3    61.9    +      -       -      +
    832B  ARG*     3.0    14.4    +      -       -      +
    833B  PHE*     3.0    15.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 830 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    826B  LYS*     2.6    39.7    +      -       +      +
    827B  ASP      2.6    24.8    +      -       -      +
    829B  ILE*     1.3    73.3    -      -       -      +
    831B  GLU*     1.3    54.1    +      -       -      +
    833B  PHE*     2.3    26.6    +      -       +      +
    834B  ALA*     2.8    13.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 831 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    827B  ASP      3.6     1.9    +      -       -      +
    828B  GLU*     3.1    14.1    +      -       -      +
    830B  LYS*     1.3    78.8    -      -       -      +
    832B  ARG*     1.3    63.0    +      -       -      +
    834B  ALA*     3.5    12.3    +      -       -      +
    835B  GLN*     3.7     9.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 832 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    717B  GLN*     4.1    25.8    -      -       +      -
    731B  SER*     6.3     2.5    -      -       -      -
    828B  GLU      4.1     0.6    +      -       -      -
    829B  ILE*     3.0    13.0    +      -       -      +
    831B  GLU*     1.3    79.4    -      -       -      +
    833B  PHE*     1.3    63.4    +      -       -      +
    835B  GLN*     3.0    18.6    +      -       -      +
    836B  THR*     3.1    11.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 833 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    826B  LYS*     3.9    12.8    -      -       +      -
    829B  ILE      3.0     6.5    +      -       -      +
    830B  LYS*     2.3    36.8    +      -       +      +
    832B  ARG*     1.3    69.5    -      -       -      +
    834B  ALA*     1.3    55.7    +      -       -      +
    836B  THR*     3.0    11.2    +      -       -      -
    837B  MET*     2.9    28.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 834 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    830B  LYS      2.8    11.8    +      -       -      +
    831B  GLU*     3.9    10.8    -      -       -      +
    832B  ARG      3.2     0.2    -      -       -      -
    833B  PHE*     1.3    72.2    -      -       -      +
    835B  GLN*     1.3    57.9    +      -       -      +
    837B  MET*     3.1     7.1    +      -       -      +
    838B  GLU*     2.9    31.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 835 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    720B  LYS*     5.8     8.1    -      -       +      -
    831B  GLU      3.7     6.5    +      -       -      +
    832B  ARG*     3.0    11.8    +      -       -      +
    834B  ALA*     1.3    78.5    -      -       -      +
    836B  THR*     1.3    57.6    +      -       -      +
    838B  GLU*     4.4     5.3    -      -       -      +
    839B  PHE*     3.0    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 836 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    832B  ARG      3.1    10.0    +      -       -      -
    833B  PHE*     3.0    14.3    +      -       -      -
    835B  GLN*     1.3    79.6    -      -       -      +
    837B  MET*     1.3    57.1    +      -       -      +
    839B  PHE*     3.8     5.1    -      -       -      +
    840B  VAL*     2.9    26.4    +      -       -      +
    866B  VAL*     6.4     2.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with MET 837 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    833B  PHE      2.9    15.2    +      -       -      +
    834B  ALA*     3.8     6.5    -      -       -      +
    836B  THR*     1.3    75.3    -      -       -      +
    838B  GLU*     1.3    60.9    +      -       -      +
    840B  VAL*     3.4     8.6    -      -       -      +
    841B  GLU*     2.9    25.5    +      -       -      +
    890B  ILE*     5.8    11.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 838 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    834B  ALA      2.9    15.7    +      -       -      +
    835B  GLN*     4.4     4.7    -      -       -      +
    837B  MET*     1.3    74.4    -      -       -      +
    839B  PHE*     1.3    59.4    +      -       -      +
    841B  GLU*     3.4     8.1    +      -       -      +
    842B  GLU*     2.9    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 839 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    835B  GLN      3.0    22.7    +      -       -      +
    836B  THR*     3.9     7.0    -      -       -      +
    838B  GLU*     1.3    75.5    -      -       -      +
    840B  VAL*     1.3    56.9    +      -       -      +
    842B  GLU*     3.2    10.1    +      -       -      +
    843B  TYR*     2.8    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 840 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    836B  THR      2.9    21.3    +      -       -      +
    837B  MET*     3.4    11.2    -      -       -      +
    838B  GLU      3.1     0.4    -      -       -      -
    839B  PHE*     1.3    73.0    -      -       -      +
    841B  GLU*     1.3    60.5    +      -       -      +
    842B  GLU      3.1     1.1    -      -       -      -
    843B  TYR*     3.0    11.6    +      -       -      +
    844B  LEU*     2.9    26.3    +      -       -      +
    894B  ILE*     6.1     0.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 841 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    837B  MET      2.9    17.5    +      -       -      +
    838B  GLU*     3.7     8.3    -      -       -      +
    840B  VAL*     1.3    75.5    -      -       -      +
    842B  GLU*     1.3    56.2    +      -       -      +
    844B  LEU*     3.6     9.5    -      -       -      +
    845B  ARG*     2.9    27.4    +      -       -      +
    890B  ILE*     6.4     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 842 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    838B  GLU      2.9    13.9    +      -       -      +
    839B  PHE*     3.3    15.3    -      -       -      +
    840B  VAL      3.1     0.4    -      -       -      -
    841B  GLU*     1.3    75.7    -      -       -      +
    843B  TYR*     1.4    56.3    +      -       -      +
    845B  ARG*     3.8     7.0    -      -       -      +
    846B  ASP*     3.0    27.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 843 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    839B  PHE      2.8    12.7    +      -       -      +
    840B  VAL*     3.0    15.0    +      -       -      +
    842B  GLU*     1.4    75.0    -      -       -      +
    844B  LEU*     1.3    60.8    +      -       -      +
    846B  ASP*     3.8    14.5    +      -       -      +
    863B  THR*     6.5     1.1    -      -       -      -
    898B  VAL*     3.1    21.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 844 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    840B  VAL      2.9    12.3    +      -       -      +
    841B  GLU*     3.6    13.0    -      -       -      +
    843B  TYR*     1.3    77.4    -      -       -      +
    845B  ARG*     1.3    57.5    +      -       -      +
    847B  VAL*     2.9    24.3    -      -       -      +
    848B  VAL      4.5     0.3    +      -       -      -
    893B  ALA      3.9    21.5    -      -       -      +
    894B  ILE*     4.4    10.5    -      -       -      +
    897B  CYS*     3.5    12.0    -      -       +      +
    898B  VAL*     4.0     9.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 845 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    841B  GLU      2.9    18.7    +      -       -      +
    842B  GLU*     3.5     8.3    +      -       -      +
    843B  TYR      3.4     0.4    -      -       -      -
    844B  LEU*     1.3    70.6    -      -       -      +
    846B  ASP*     1.3    61.5    +      -       -      +
    847B  VAL      3.0     6.2    +      -       -      -
    848B  VAL*     3.1    20.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 846 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    842B  GLU      3.0    17.9    +      -       -      +
    843B  TYR*     3.8    11.7    -      -       -      +
    844B  LEU      3.4     0.4    -      -       -      -
    845B  ARG*     1.3    74.4    -      -       -      +
    847B  VAL*     1.3    60.8    +      -       -      +
    848B  VAL*     3.1     1.4    +      -       -      +
    849B  CYS*     3.3    14.6    +      -       -      +
    851B  ARG*     3.6    21.1    -      -       +      +
    859B  LYS*     6.3     2.9    -      -       +      -
----------------------------------------------------------
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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