Contacts of the helix formed by residues 237 - 267 (chain B) in PDB entry 3MDR


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 ARG 237 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  LYS*     1.3    68.2    -      -       -      +
    238B  LYS*     1.3    71.4    +      -       +      +
    239B  GLN      3.7     0.4    -      -       -      -
    240B  LEU*     3.6    15.4    -      -       -      +
    241B  ARG*     3.4    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 238 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236B  LYS*     2.3    62.7    +      -       +      +
    237B  ARG*     1.3    76.9    -      -       +      +
    239B  GLN*     1.3    70.1    +      -       -      +
    240B  LEU      3.0     1.8    -      -       -      -
    241B  ARG*     3.0    20.2    +      -       -      +
    242B  GLU*     2.8    48.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 239 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116B  PHE*     5.4     3.3    -      -       +      -
    217B  LEU*     4.7     8.9    -      -       +      +
    220B  GLU*     2.9    40.0    -      -       -      +
    224B  ALA*     5.4     9.9    -      -       -      +
    236B  LYS*     3.2    12.6    +      -       +      +
    238B  LYS*     1.3    94.0    -      -       -      +
    240B  LEU*     1.3    56.3    +      -       -      +
    242B  GLU*     4.2     8.1    -      -       -      -
    243B  VAL*     2.9    48.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 240 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116B  PHE*     3.6    45.7    -      -       +      -
    236B  LYS      4.3     8.6    +      -       -      +
    237B  ARG*     3.6    21.4    +      -       -      +
    238B  LYS      3.0     0.4    -      -       -      -
    239B  GLN*     1.3    79.7    -      -       -      +
    241B  ARG*     1.3    60.0    +      -       -      +
    243B  VAL*     4.0     2.4    -      -       -      +
    244B  ARG*     3.3    61.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 241 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    237B  ARG*     3.4     8.8    +      -       -      +
    238B  LYS*     3.0    23.3    +      -       -      +
    240B  LEU*     1.3    76.5    -      -       -      +
    242B  GLU*     1.3    70.0    +      -       -      +
    244B  ARG*     3.3    13.4    +      -       +      +
    245B  GLU*     2.8    61.5    +      -       +      +
    248B  ARG*     5.3     4.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 242 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    213B  GLN*     5.6     0.2    +      -       -      -
    217B  LEU*     3.7    33.5    -      -       +      +
    238B  LYS*     2.8    38.8    +      -       -      +
    239B  GLN*     3.9     8.1    -      -       -      +
    241B  ARG*     1.3    86.0    +      -       -      +
    243B  VAL*     1.3    51.1    +      -       -      +
    245B  GLU*     3.3    14.1    +      -       -      +
    246B  SER*     2.8    39.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 243 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115B  VAL*     4.0     1.6    -      -       +      -
    116B  PHE*     3.6    29.8    -      -       +      -
    217B  LEU*     3.4    25.4    -      -       +      +
    218B  MET*     4.6     2.2    -      -       -      -
    221B  GLY*     3.7    23.1    -      -       -      +
    239B  GLN*     2.9    41.5    +      -       +      +
    240B  LEU      4.0     0.2    -      -       -      +
    242B  GLU*     1.3    75.0    -      -       -      +
    244B  ARG*     1.3    56.9    +      -       -      +
    246B  SER*     3.3     6.3    +      -       -      -
    247B  ILE*     3.0    47.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 244 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116B  PHE*     2.7    40.1    +      -       +      +
    117B  GLY*     5.3     1.0    -      -       -      -
    118B  GLU*     3.8    24.5    -      -       +      +
    240B  LEU*     3.3    52.8    +      -       -      +
    241B  ARG*     3.3    15.7    +      -       +      +
    243B  VAL*     1.3    77.6    -      -       -      +
    245B  GLU*     1.3    56.3    +      -       -      +
    247B  ILE*     3.5     4.3    +      -       -      +
    248B  ARG*     3.1    44.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 245 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    241B  ARG*     2.8    58.3    +      -       -      +
    242B  GLU*     3.6    13.3    -      -       -      +
    244B  ARG*     1.3    74.0    -      -       -      +
    246B  SER*     1.3    58.2    +      -       -      +
    248B  ARG*     3.6    26.6    +      -       -      +
    249B  PHE*     3.0    29.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 246 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    214B  ALA*     3.4    31.7    -      -       -      +
    217B  LEU*     3.3    27.4    -      -       -      +
    218B  MET*     4.3     4.3    -      -       -      -
    242B  GLU      2.8    21.8    +      -       -      -
    243B  VAL*     3.6     5.6    -      -       -      -
    245B  GLU*     1.3    76.2    -      -       -      +
    247B  ILE*     1.3    59.2    +      -       -      +
    249B  PHE*     3.4     7.8    +      -       -      +
    250B  LEU*     3.0    32.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 247 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    115B  VAL*     3.8    33.9    -      -       +      +
    118B  GLU*     3.9    15.7    -      -       +      +
    119B  ARG      3.2    27.8    -      -       -      +
    120B  LEU*     3.9    17.5    -      -       +      -
    218B  MET*     3.9    23.1    -      -       +      -
    243B  VAL*     3.0    38.2    +      -       +      +
    244B  ARG      3.9     3.8    -      -       -      +
    246B  SER*     1.3    74.5    -      -       -      +
    248B  ARG*     1.3    63.9    +      -       -      +
    250B  LEU*     3.3     7.5    +      -       -      +
    251B  ARG*     3.1    25.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 248 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118B  GLU*     2.9    36.0    +      -       -      +
    241B  ARG*     4.8     4.2    +      -       -      +
    244B  ARG*     3.1    22.0    +      -       -      +
    245B  GLU*     3.6    38.7    +      -       -      +
    246B  SER      3.3     0.2    -      -       -      -
    247B  ILE*     1.3    73.6    -      -       -      +
    249B  PHE*     1.3    67.9    +      -       -      +
    251B  ARG*     3.5     6.0    +      -       -      +
    252B  GLN*     3.0    24.2    +      -       -      +
    255B  ARG*     5.1     1.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 249 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208B  GLN*     5.8     2.2    -      -       -      -
    210B  PRO*     4.0    21.1    -      -       +      -
    211B  LEU*     3.6    36.3    -      -       +      -
    214B  ALA*     3.8    18.6    -      -       +      -
    245B  GLU      3.0    19.0    +      -       -      +
    246B  SER*     3.4     7.9    -      -       -      +
    248B  ARG*     1.3    75.7    -      -       -      +
    250B  LEU*     1.3    56.8    +      -       -      +
    252B  GLN*     3.1    10.0    +      -       +      +
    253B  VAL*     2.9    46.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 250 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120B  LEU*     5.5     2.9    -      -       +      -
    211B  LEU*     4.1     9.9    -      -       +      -
    214B  ALA*     4.0    26.9    -      -       +      +
    215B  VAL*     4.0    23.3    -      -       +      +
    218B  MET*     5.3     7.2    -      -       +      -
    246B  SER      3.0    12.2    +      -       -      +
    247B  ILE*     3.5    12.1    -      -       -      +
    248B  ARG      3.2     0.2    -      -       -      -
    249B  PHE*     1.3    76.4    -      -       -      +
    251B  ARG*     1.3    61.8    +      -       -      +
    253B  VAL*     3.4     8.4    +      -       +      +
    254B  GLY      3.2    14.7    +      -       -      -
    296B  PHE*     3.8    10.3    -      -       +      -
    297B  VAL*     4.3    24.7    -      -       +      -
    300B  PHE*     3.7    32.8    -      -       +      -
    301B  ILE*     4.6     4.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 251 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118B  GLU*     6.1     0.7    -      -       -      -
    119B  ARG*     3.2    33.7    +      -       -      +
    120B  LEU*     3.0    22.4    +      -       +      +
    247B  ILE*     3.1    16.1    +      -       +      +
    248B  ARG*     4.1     5.4    -      -       -      +
    250B  LEU*     1.3    78.8    -      -       +      +
    252B  GLN*     1.3    56.7    +      -       -      +
    254B  GLY*     3.2     4.4    +      -       -      +
    255B  ARG*     3.1    36.1    +      -       -      +
    290B  GLU*     2.8    45.7    +      -       -      +
    293B  LEU*     3.4    25.4    +      -       +      +
    294B  ASP*     2.9    36.7    +      -       -      +
    296B  PHE*     5.3     0.2    -      -       -      -
    297B  VAL*     3.6    19.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 252 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  ARG      3.0    19.3    +      -       -      +
    249B  PHE*     3.1    11.6    +      -       +      +
    251B  ARG*     1.3    73.8    -      -       -      +
    253B  VAL*     1.3    65.3    +      -       -      +
    254B  GLY      3.1     1.1    -      -       -      -
    255B  ARG*     2.6    42.9    +      -       -      +
    256B  ASP*     3.1    60.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 253 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    208B  GLN*     5.9     1.3    -      -       -      +
    211B  LEU*     4.1    21.3    -      -       +      -
    249B  PHE*     2.9    43.2    +      -       +      +
    250B  LEU*     3.5     8.5    -      -       +      +
    252B  GLN*     1.3    75.8    -      -       -      +
    254B  GLY*     1.3    57.3    +      -       -      +
    256B  ASP*     3.4     7.4    +      -       -      +
    257B  TRP*     2.9    67.9    +      -       +      +
    296B  PHE*     4.2     8.5    -      -       +      -
    300B  PHE*     5.1     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 254 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250B  LEU      3.2     4.6    +      -       -      -
    251B  ARG      3.2     8.9    +      -       -      -
    252B  GLN      3.1     1.4    -      -       -      -
    253B  VAL*     1.3    78.8    -      -       -      +
    255B  ARG*     1.3    51.3    +      -       -      +
    257B  TRP*     3.2     3.1    +      -       -      +
    258B  VAL*     2.8    40.0    +      -       -      +
    293B  LEU*     4.0     7.0    -      -       -      -
    296B  PHE*     3.5    33.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 255 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  ARG      5.1     1.6    +      -       -      -
    251B  ARG*     3.1    19.1    +      -       -      +
    252B  GLN*     2.6    68.6    +      -       -      +
    254B  GLY*     1.3    75.1    -      -       -      +
    256B  ASP*     1.3    51.7    +      -       -      +
    258B  VAL*     3.6     7.0    -      -       +      +
    259B  GLN*     2.6    34.9    +      -       -      +
    289B  ASP*     5.9     3.4    -      -       +      +
    290B  GLU*     4.4     8.3    +      -       -      -
    293B  LEU*     3.5    35.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 256 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252B  GLN*     3.1    41.8    +      -       -      +
    253B  VAL*     3.6     8.1    -      -       -      +
    255B  ARG*     1.3    76.6    -      -       -      +
    257B  TRP*     1.3    61.4    +      -       +      +
    259B  GLN*     3.2    19.6    -      -       -      +
    260B  ARG*     2.8    41.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 257 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    193B  ALA*     3.8     9.6    -      -       +      -
    197B  PHE*     3.7    28.8    -      +       +      +
    199B  MET*     3.5    52.2    -      -       +      +
    200B  GLU      5.7     1.1    -      -       -      -
    201B  THR*     3.6    31.9    -      -       +      -
    208B  GLN*     5.7     3.4    -      -       -      -
    211B  LEU*     4.8     3.8    -      -       +      -
    253B  VAL*     2.9    40.9    +      -       +      +
    254B  GLY      3.8     2.9    -      -       -      +
    256B  ASP*     1.3    76.5    -      -       +      +
    258B  VAL*     1.3    64.6    +      -       -      +
    260B  ARG*     3.5    12.5    +      -       -      +
    261B  ARG*     3.2    21.8    +      -       -      +
    276B  LEU*     4.4     7.5    -      -       +      +
    296B  PHE*     3.5    23.1    -      +       +      -
    300B  PHE*     3.9    19.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with VAL 258 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254B  GLY      2.8    22.2    +      -       -      +
    255B  ARG*     3.6     9.2    -      -       +      +
    257B  TRP*     1.3    75.6    -      -       -      +
    259B  GLN*     1.3    65.8    +      -       -      +
    261B  ARG*     3.2     6.8    +      -       -      +
    262B  ARG*     3.1    54.9    +      -       -      +
    276B  LEU*     4.1    20.6    -      -       +      -
    280B  LEU*     4.4     3.8    -      -       +      +
    289B  ASP*     4.8     3.1    -      -       +      +
    292B  LEU*     3.8    34.3    -      -       +      -
    293B  LEU*     5.1     3.8    -      -       +      -
    296B  PHE*     5.1     7.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 259 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255B  ARG      2.6    21.7    +      -       -      +
    256B  ASP*     3.2    22.2    -      -       -      +
    258B  VAL*     1.3    76.3    -      -       -      +
    260B  ARG*     1.3    62.1    +      -       -      +
    262B  ARG*     3.4     6.1    +      -       -      +
    263B  GLU*     3.1    54.5    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 260 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199B  MET*     3.8    37.1    -      -       -      +
    256B  ASP*     2.8    24.5    +      -       -      +
    257B  TRP*     3.7    13.9    -      -       -      +
    258B  VAL      3.3     0.2    -      -       -      -
    259B  GLN*     1.3    76.1    -      -       +      +
    261B  ARG*     1.3    61.0    +      -       -      +
    263B  GLU*     3.7    11.9    +      -       -      +
    264B  ALA*     3.1    24.3    +      -       -      +
    267B  ARG*     5.2     0.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 261 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    197B  PHE      3.4    19.4    +      -       -      -
    198B  GLY*     4.3     4.6    -      -       -      +
    257B  TRP      3.2    14.3    +      -       -      +
    258B  VAL*     3.2     8.7    +      -       -      +
    260B  ARG*     1.3    75.0    -      -       -      +
    262B  ARG*     1.3    59.5    +      -       -      +
    264B  ALA*     3.4     5.0    +      -       -      +
    265B  LEU*     3.0    47.7    +      -       +      +
    271B  VAL*     3.4    35.0    -      -       -      +
    274B  ASP*     2.8    42.2    +      -       -      -
    276B  LEU*     3.6    22.5    -      -       +      +
    277B  THR*     3.2    16.8    +      -       -      +
    280B  LEU*     3.8    23.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 262 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258B  VAL*     3.1    38.4    +      -       +      +
    259B  GLN*     4.0     5.8    -      -       -      +
    261B  ARG*     1.3    75.8    -      -       +      +
    263B  GLU*     1.3    60.7    -      -       +      +
    265B  LEU*     3.3    12.3    +      -       +      +
    266B  LYS*     2.9    43.9    +      -       -      +
    280B  LEU*     4.0    18.0    -      -       +      +
    283B  GLU      6.0     0.4    +      -       -      -
    289B  ASP*     2.8    43.4    +      -       -      -
    292B  LEU*     3.8    11.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 263 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    259B  GLN*     3.1    53.0    +      -       +      +
    260B  ARG*     4.0    12.2    +      -       -      +
    262B  ARG*     1.3    75.4    -      -       +      +
    264B  ALA*     1.3    63.2    +      -       -      +
    266B  LYS*     3.2    33.0    +      -       -      +
    267B  ARG*     3.2    34.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 264 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260B  ARG      3.1    19.2    +      -       -      +
    261B  ARG*     3.6     7.0    -      -       -      +
    263B  GLU*     1.3    76.5    -      -       -      +
    265B  LEU*     1.3    60.6    +      -       -      +
    267B  ARG*     3.4    27.6    +      -       -      +
    269B  GLU*     3.1    42.1    +      -       -      +
    271B  VAL*     4.5    12.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 265 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261B  ARG*     3.0    39.3    +      -       +      +
    262B  ARG*     3.7    10.1    -      -       +      +
    263B  GLU      3.2     0.2    -      -       -      -
    264B  ALA*     1.3    76.7    -      -       -      +
    266B  LYS*     1.3    57.6    +      -       -      +
    267B  ARG      3.3     0.2    -      -       -      -
    268B  GLY*     3.4    14.7    +      -       -      +
    269B  GLU      4.1    11.9    -      -       -      +
    271B  VAL*     3.8    28.7    -      -       +      +
    280B  LEU*     5.2     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 266 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    262B  ARG*     2.9    32.3    +      -       -      +
    263B  GLU*     3.2    24.8    +      -       -      +
    265B  LEU*     1.3    74.3    -      -       -      +
    267B  ARG*     1.3    57.6    +      -       +      +
    268B  GLY      3.3     4.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 267 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    260B  ARG      5.2     0.8    +      -       -      -
    263B  GLU*     3.2    41.4    +      -       -      +
    264B  ALA*     3.4    22.8    +      -       -      +
    265B  LEU      3.3     0.4    -      -       -      -
    266B  LYS*     1.3    77.6    -      -       +      +
    268B  GLY*     1.3    62.8    +      -       -      +
    269B  GLU*     2.6    33.7    +      -       +      +
----------------------------------------------------------
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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