Contacts of the helix formed by residues 2868 - 2897 (chain B) in PDB entry 6X34


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 SER2868 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2866B  THR      4.1     1.2    +      -       -      -
   2867B  LEU*     1.3    77.0    -      -       -      +
   2869B  ARG*     1.3    62.1    +      -       -      +
   2870B  GLU*     3.3     8.1    -      -       -      -
   2871B  LEU*     3.9    10.6    -      -       -      +
   2872B  GLN*     3.0    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG2869 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2868B  SER*     1.3    76.2    -      -       -      +
   2870B  GLU*     1.3    63.7    +      -       -      +
   2872B  GLN*     3.9     5.1    -      -       -      +
   2873B  ALA*     3.0    25.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU2870 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2868B  SER*     3.3     6.0    -      -       -      -
   2869B  ARG*     1.3    79.0    -      -       -      +
   2871B  LEU*     1.3    56.9    +      -       -      +
   2873B  ALA*     3.4     5.3    +      -       -      +
   2874B  MET*     3.1    28.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2871 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2867B  LEU*     4.2    11.7    -      -       +      -
   2868B  SER*     3.5    21.2    +      -       -      +
   2869B  ARG      3.4     0.6    -      -       -      -
   2870B  GLU*     1.3    77.9    -      -       -      +
   2872B  GLN*     1.3    57.9    +      -       -      +
   2874B  MET*     3.5     6.4    +      -       -      +
   2875B  ALA*     3.0    27.7    +      -       -      +
   2927B  LEU*     5.3    15.1    -      -       +      +
   2937B  VAL      6.0     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN2872 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2867B  LEU*     4.7     9.3    -      -       +      +
   2868B  SER      3.0    19.9    +      -       -      +
   2869B  ARG*     3.9     6.3    -      -       -      +
   2871B  LEU*     1.3    76.7    -      -       -      +
   2873B  ALA*     1.3    61.9    +      -       -      +
   2875B  ALA*     3.4    14.4    +      -       -      +
   2876B  GLU*     3.5    10.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA2873 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2869B  ARG      3.0    17.5    +      -       -      +
   2870B  GLU*     3.9     5.6    -      -       -      +
   2871B  LEU      3.3     0.2    -      -       -      -
   2872B  GLN*     1.3    78.5    -      -       -      +
   2874B  MET*     1.3    60.6    +      -       -      +
   2876B  GLU*     3.3    19.5    +      -       -      +
   2877B  GLN*     3.9     4.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET2874 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2870B  GLU      3.1    17.2    +      -       -      +
   2871B  LEU*     3.9     7.2    -      -       -      +
   2873B  ALA*     1.3    74.5    -      -       -      +
   2875B  ALA*     1.3    64.4    +      -       -      +
   2877B  GLN*     3.3    16.9    +      -       -      +
   2878B  LEU*     3.5    10.7    +      -       -      +
   2937B  VAL*     6.5     1.3    -      -       +      -
   2939B  ARG*     6.2     3.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA2875 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2871B  LEU      3.0    17.9    +      -       -      +
   2872B  GLN*     3.6     9.6    -      -       -      +
   2873B  ALA      3.2     0.4    -      -       -      -
   2874B  MET*     1.3    77.4    -      -       -      +
   2876B  GLU*     1.3    60.1    +      -       -      +
   2878B  LEU*     3.4     2.8    +      -       -      +
   2879B  ALA*     2.9    26.7    +      -       -      +
   2920B  ARG*     5.6     1.7    -      -       +      +
   2923B  ALA*     3.4    30.5    -      -       +      +
   2924B  GLN*     4.9     5.8    -      -       +      +
   2927B  LEU*     5.6     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU2876 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2872B  GLN      3.5     7.9    +      -       -      +
   2873B  ALA*     3.3    12.9    +      -       -      +
   2874B  MET      3.2     1.0    -      -       -      -
   2875B  ALA*     1.3    79.0    -      -       -      +
   2877B  GLN*     1.3    56.2    +      -       -      +
   2879B  ALA*     3.9     5.5    -      -       -      +
   2880B  GLU*     2.9    30.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN2877 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2873B  ALA      3.9     4.2    +      -       -      +
   2874B  MET*     3.3    12.0    +      -       -      +
   2875B  ALA      3.3     0.8    -      -       -      -
   2876B  GLU*     1.3    79.4    -      -       -      +
   2878B  LEU*     1.3    58.0    +      -       -      +
   2880B  GLU*     3.4     5.1    +      -       -      +
   2881B  ASN*     3.0    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2878 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2812B  SER*     6.3     2.9    -      -       -      -
   2874B  MET      3.5     8.8    +      -       -      +
   2875B  ALA*     3.4     8.4    +      -       -      +
   2877B  GLN*     1.3    74.9    -      -       -      +
   2879B  ALA*     1.3    66.0    +      -       -      +
   2881B  ASN*     3.4     7.6    +      -       -      +
   2882B  TYR*     3.2    20.8    +      -       -      +
   2923B  ALA*     3.9    17.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA2879 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2875B  ALA      2.9    17.7    +      -       -      +
   2876B  GLU*     3.9     7.2    -      -       -      +
   2878B  LEU*     1.3    77.7    -      -       -      +
   2880B  GLU*     1.3    60.7    +      -       -      +
   2882B  TYR*     3.4     2.9    +      -       -      +
   2883B  HIS*     3.3    17.3    +      -       -      +
   2916B  LYS      5.5     0.2    -      -       -      +
   2919B  ASP*     3.4    49.1    -      -       +      +
   2920B  ARG*     3.9     9.4    -      -       +      +
   2923B  ALA*     3.9     2.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU2880 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2876B  GLU      2.9    18.7    +      -       -      +
   2877B  GLN*     3.9     5.6    -      -       -      +
   2878B  LEU      3.3     0.2    -      -       -      -
   2879B  ALA*     1.3    74.5    -      -       -      +
   2881B  ASN*     1.3    60.4    +      -       -      +
   2883B  HIS*     3.4     3.8    +      -       -      +
   2884B  ASN*     3.0    28.4    +      -       -      +
   2908B  TYR*     4.1    26.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN2881 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2739B  PRO*     5.1     3.8    -      -       -      +
   2740B  VAL*     5.7    10.1    -      -       +      +
   2815B  ALA*     5.2    14.8    -      -       +      -
   2877B  GLN      3.0    17.9    +      -       -      +
   2878B  LEU*     3.7     7.4    -      -       -      +
   2879B  ALA      3.3     0.4    -      -       -      -
   2880B  GLU*     1.3    75.0    -      -       -      +
   2882B  TYR*     1.3    59.9    +      -       -      +
   2884B  ASN*     3.4     6.8    +      -       -      +
   2885B  THR*     2.9    29.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with TYR2882 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2878B  LEU      3.2    11.2    +      -       -      +
   2879B  ALA*     3.7     9.6    -      -       -      +
   2880B  GLU      3.3     0.4    -      -       -      -
   2881B  ASN*     1.3    78.3    -      -       -      +
   2883B  HIS*     1.3    58.0    +      -       -      +
   2885B  THR*     3.4     5.7    +      -       -      -
   2886B  TRP*     3.0    31.0    +      -       -      +
   2919B  ASP*     4.8    11.4    -      -       +      +
   2922B  LYS*     5.8     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS2883 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2879B  ALA      3.3    11.2    +      -       -      +
   2880B  GLU*     3.8    10.1    -      -       -      +
   2881B  ASN      3.3     0.4    -      -       -      -
   2882B  TYR*     1.3    78.6    -      -       -      +
   2884B  ASN*     1.3    53.6    +      -       -      +
   2886B  TRP*     3.8     3.9    -      -       -      +
   2887B  GLY*     2.7    32.2    +      -       -      -
   2908B  TYR*     5.0    12.3    -      -       +      -
   2919B  ASP*     5.1     7.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASN2884 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2737B  PRO*     3.4    16.4    -      -       +      +
   2738B  ARG      4.1    24.2    -      -       -      +
   2739B  PRO*     4.2    13.7    -      -       +      +
   2880B  GLU      3.0    16.7    +      -       -      +
   2881B  ASN*     3.8     6.5    -      -       -      +
   2883B  HIS*     1.3    73.4    -      -       -      +
   2885B  THR*     1.3    61.3    +      -       -      +
   2888B  ARG*     3.0    26.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR2885 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2739B  PRO*     4.1    16.3    -      -       -      +
   2881B  ASN      2.9    17.2    +      -       -      -
   2882B  TYR*     3.8     6.5    -      -       -      -
   2884B  ASN*     1.3    78.3    -      -       -      +
   2886B  TRP*     1.3    60.8    +      -       -      +
   2888B  ARG*     3.5     3.3    +      -       -      +
   2889B  LYS*     3.2    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP2886 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2882B  TYR      3.0    18.5    +      -       -      +
   2883B  HIS*     4.2     3.6    -      -       -      +
   2885B  THR*     1.3    75.7    -      -       -      +
   2887B  GLY*     1.3    58.6    +      -       -      +
   2889B  LYS*     3.5     5.6    +      -       -      +
   2890B  LYS*     3.0    30.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLY2887 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2737B  PRO*     4.3     9.0    -      -       -      -
   2883B  HIS      2.7    23.4    +      -       -      -
   2884B  ASN      4.0     0.9    -      -       -      -
   2885B  THR      3.3     0.2    -      -       -      -
   2886B  TRP*     1.3    75.0    -      -       -      +
   2888B  ARG*     1.3    59.5    +      -       -      +
   2890B  LYS*     3.5     5.1    +      -       -      +
   2891B  LYS*     3.2    23.2    +      -       -      +
   2904B  LEU      5.9     2.5    -      -       -      -
   2905B  LEU*     6.1     5.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG2888 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2737B  PRO*     3.9    17.4    -      -       +      +
   2739B  PRO*     5.3     6.7    -      -       +      -
   2884B  ASN      3.0    18.3    +      -       -      +
   2885B  THR*     3.9     4.9    -      -       -      +
   2886B  TRP      3.3     0.2    -      -       -      -
   2887B  GLY*     1.3    75.4    -      -       -      +
   2889B  LYS*     1.3    63.7    +      -       -      +
   2891B  LYS*     3.5     6.8    +      -       -      +
   2892B  GLN*     3.3    20.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS2889 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2885B  THR      3.2    16.9    +      -       -      +
   2886B  TRP*     3.5     6.0    +      -       -      +
   2888B  ARG*     1.3    74.6    -      -       -      +
   2890B  LYS*     1.3    59.5    +      -       -      +
   2892B  GLN*     3.5     4.6    +      -       -      +
   2893B  GLU*     3.0    29.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS2890 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2886B  TRP      3.0    18.3    +      -       -      +
   2887B  GLY*     3.9     6.3    -      -       -      +
   2888B  ARG      3.3     0.2    -      -       -      -
   2889B  LYS*     1.3    75.0    -      -       -      +
   2891B  LYS*     1.3    60.3    +      -       -      +
   2893B  GLU*     3.9     5.2    -      -       -      +
   2894B  LEU*     3.0    31.2    +      -       -      +
   2902B  HIS*     5.8     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS2891 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2887B  GLY      3.2    16.8    +      -       -      +
   2888B  ARG*     3.8     7.2    -      -       -      +
   2889B  LYS      3.3     0.4    -      -       -      -
   2890B  LYS*     1.3    77.5    -      -       -      +
   2892B  GLN*     1.3    60.7    +      -       -      +
   2894B  LEU*     4.1     3.9    -      -       -      +
   2895B  GLU*     3.2    23.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN2892 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2888B  ARG      3.3    13.8    +      -       -      +
   2889B  LYS*     4.1     5.2    -      -       -      +
   2890B  LYS      3.3     0.2    -      -       -      -
   2891B  LYS*     1.3    77.6    -      -       -      +
   2893B  GLU*     1.3    64.6    +      -       -      +
   2895B  GLU*     4.1     4.4    -      -       -      +
   2896B  ALA*     3.2    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU2893 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2889B  LYS      3.0    18.8    +      -       -      +
   2890B  LYS*     4.0     6.3    -      -       -      +
   2892B  GLN*     1.3    76.1    -      -       -      +
   2894B  LEU*     1.3    64.5    +      -       -      +
   2896B  ALA*     3.5     5.7    +      -       -      +
   2897B  LYS*     3.4    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU2894 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2890B  LYS      3.0    18.6    +      -       -      +
   2891B  LYS*     4.1     5.2    -      -       -      +
   2893B  GLU*     1.3    75.7    -      -       -      +
   2895B  GLU*     1.3    62.3    +      -       -      +
   2897B  LYS*     3.2    11.2    +      -       -      +
   2898B  GLY      3.5     0.5    +      -       -      -
   2899B  GLY*     2.8    38.6    +      -       -      +
   2900B  GLY*     4.9    10.3    -      -       -      +
   2901B  THR*     5.4     3.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU2895 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2891B  LYS      3.2    16.8    +      -       -      +
   2892B  GLN*     4.1     5.2    -      -       -      +
   2894B  LEU*     1.3    77.2    -      -       -      +
   2896B  ALA*     1.3    61.1    +      -       -      +
   2897B  LYS      3.4     0.7    +      -       -      -
   2898B  GLY*     3.4     9.7    +      -       -      -
   2899B  GLY*     3.9    12.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA2896 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2892B  GLN      3.2    18.4    +      -       -      +
   2893B  GLU*     3.9     7.2    -      -       -      +
   2894B  LEU      3.3     0.6    -      -       -      -
   2895B  GLU*     1.3    76.3    -      -       -      +
   2897B  LYS*     1.3    58.3    +      -       -      +
   2898B  GLY      3.4     0.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS2897 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
   2893B  GLU      3.4    13.9    +      -       -      +
   2894B  LEU*     3.2     8.6    +      -       -      +
   2895B  GLU      3.2     0.8    -      -       -      -
   2896B  ALA*     1.3    77.1    -      -       -      +
   2898B  GLY*     1.3    56.2    +      -       -      +
   2899B  GLY      3.7     3.7    -      -       -      +
----------------------------------------------------------
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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