Contacts of the helix formed by residues 43 - 72 (chain C) in PDB entry 4NE1


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 SER 43 (chain C).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  PHE*     1.3    76.5    -      -       -      +
     44C  LYS*     1.3    65.1    +      -       -      +
     45C  GLN*     3.2    17.1    +      -       -      +
     46C  THR*     3.0    20.1    +      -       -      -
     47C  ILE*     3.1    13.2    +      -       -      +
     64D  ARG*     4.0    20.6    -      -       -      +
     65D  VAL      2.3    39.0    +      -       -      +
     66D  ASP*     3.5    11.1    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 44 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  HIS*     5.2     9.4    -      -       +      +
     42C  PHE      3.8     1.2    +      -       -      -
     43C  SER*     1.3    71.2    -      -       -      +
     45C  GLN*     1.3    60.7    +      -       +      +
     47C  ILE*     3.2    11.1    +      -       +      +
     48C  ALA*     2.6    42.3    +      -       +      +
     64D  ARG*     5.0     2.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 45 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43C  SER*     3.1    21.3    +      -       -      +
     44C  LYS*     1.3    78.9    +      -       +      +
     46C  THR*     1.3    55.7    +      -       -      +
     48C  ALA*     3.7     6.0    -      -       -      +
     49C  ALA*     2.7    37.5    +      -       -      +
     66D  ASP*     3.4    25.4    +      -       -      +
     67D  VAL*     3.3    35.5    -      -       +      +
     70D  LEU*     4.6     0.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 46 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42C  PHE*     3.6    19.7    -      -       +      -
     43C  SER*     3.0    14.0    +      -       -      -
     45C  GLN*     1.3    71.5    -      -       -      +
     47C  ILE*     1.3    60.8    +      -       -      +
     49C  ALA      3.3     0.7    +      -       -      -
     50C  ILE*     2.8    56.1    +      -       +      +
     53D  GLY*     4.8     2.0    -      -       -      -
     65D  VAL*     2.9    39.7    +      -       +      +
     66D  ASP      3.8     2.4    +      -       -      -
     67D  VAL      5.1     0.2    -      -       -      +
     70D  LEU*     3.3    30.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 47 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  HIS*     3.8    20.6    -      -       +      +
     27C  VAL*     4.7     1.5    -      -       +      +
     28C  GLY*     4.5    20.6    -      -       -      +
     31C  CYS*     3.7    20.4    -      -       +      -
     32C  GLU*     5.5     5.2    -      -       +      +
     42C  PHE*     3.4    37.7    -      -       +      +
     43C  SER      3.1    15.4    +      -       -      +
     44C  LYS*     3.3    12.3    -      -       +      +
     46C  THR*     1.3    76.1    -      -       -      +
     48C  ALA*     1.3    62.4    +      -       -      +
     50C  ILE*     3.2     5.9    +      -       -      +
     51C  SER*     3.1    29.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 48 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24C  HIS*     3.7    18.8    +      -       +      -
     44C  LYS*     2.6    26.0    +      -       +      +
     45C  GLN*     3.9     6.3    -      -       -      +
     47C  ILE*     1.3    73.7    -      -       -      +
     49C  ALA*     1.3    59.8    +      -       -      +
     51C  SER*     4.0     1.6    -      -       -      -
     52C  GLU*     3.3    36.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 49 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45C  GLN      2.7    22.8    +      -       -      +
     48C  ALA*     1.3    71.6    -      -       -      +
     50C  ILE*     1.3    63.2    +      -       -      +
     52C  GLU*     4.3    11.6    -      -       -      +
     53C  LEU*     3.7    19.9    +      -       -      +
     56C  ARG*     5.7     0.5    +      -       -      -
     67D  VAL*     4.7    11.0    -      -       +      -
     70D  LEU*     3.4    20.0    -      -       +      -
     71D  GLU*     5.5     1.6    -      -       +      +
     74D  LEU*     4.3    19.2    -      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 50 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     27C  VAL*     3.5    20.4    -      -       +      -
     31C  CYS*     3.5    25.8    -      -       -      -
     42C  PHE*     4.1     1.8    -      -       +      -
     46C  THR*     2.8    47.9    +      -       +      +
     47C  ILE*     3.2     4.2    +      -       -      +
     49C  ALA*     1.3    76.5    -      -       -      +
     51C  SER*     1.3    62.1    +      -       -      +
     53C  LEU*     3.7     8.2    +      -       +      +
     54C  THR*     3.4    21.2    +      -       -      +
     45D  PHE*     4.9     1.0    -      -       +      -
     46D  VAL*     4.2     8.1    -      -       +      +
     49D  ALA*     3.8    25.4    -      -       +      -
     50D  ALA*     3.8    16.8    -      -       -      +
     70D  LEU*     3.8    16.8    -      -       +      -
     74D  LEU*     5.7     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 51 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  LYS*     4.7     4.4    -      -       -      +
     23C  VAL*     3.4    12.7    -      -       -      +
     24C  HIS*     3.1    56.3    +      -       -      -
     27C  VAL*     3.6    16.3    -      -       -      +
     47C  ILE*     3.1    12.0    +      -       -      +
     48C  ALA      4.0     2.7    -      -       -      -
     49C  ALA      3.4     0.2    -      -       -      -
     50C  ILE*     1.3    73.0    -      -       -      +
     52C  GLU*     1.3    65.3    +      -       -      +
     53C  LEU      3.2     1.6    -      -       -      -
     54C  THR      3.2     1.6    +      -       -      -
     55C  PHE*     3.2    21.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 52 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20C  LYS*     6.3     4.5    -      -       +      -
     48C  ALA*     3.3    24.8    +      -       -      +
     49C  ALA*     4.3     9.9    -      -       -      +
     51C  SER*     1.3    76.9    -      -       -      +
     53C  LEU*     1.3    57.0    +      -       -      +
     55C  PHE*     3.6     7.1    +      -       -      +
     56C  ARG*     3.0    56.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 53 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  ALA      3.7    11.2    +      -       -      +
     50C  ILE*     3.7    11.6    +      -       +      +
     51C  SER      3.2     0.6    -      -       -      -
     52C  GLU*     1.3    78.4    -      -       -      +
     54C  THR*     1.3    54.3    +      -       -      +
     56C  ARG*     3.6    29.0    -      -       +      +
     57C  GLN*     2.6    41.2    +      -       -      +
     45D  PHE*     4.0    13.7    -      -       +      -
     49D  ALA*     5.5     0.9    -      -       +      -
     74D  LEU*     4.0    18.4    -      -       +      -
     77D  LEU*     3.4    39.0    -      -       +      -
     78D  LEU*     3.3    32.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 54 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23C  VAL*     3.5    26.5    -      -       +      -
     27C  VAL*     3.5     1.7    -      -       -      +
     50C  ILE      3.4    10.7    +      -       -      -
     51C  SER      3.2     3.3    +      -       -      -
     53C  LEU*     1.3    72.8    -      -       -      +
     55C  PHE*     1.3    60.1    +      -       -      +
     57C  GLN*     3.3     2.1    +      -       -      +
     58C  CYS*     3.0    45.1    +      -       -      -
     10D  PHE*     3.9    25.1    -      -       +      -
     42D  LEU*     4.3    10.5    -      -       +      +
     45D  PHE*     3.4    14.7    -      -       -      -
     46D  VAL*     3.3    22.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 55 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     16C  GLN*     3.7    36.6    -      -       +      -
     19C  LEU*     3.9    24.5    -      -       +      -
     20C  LYS*     3.7    50.5    -      -       +      -
     23C  VAL*     3.9     9.1    -      -       +      +
     51C  SER      3.2     9.7    +      -       -      +
     52C  GLU*     3.7    10.1    -      -       -      +
     54C  THR*     1.3    78.6    -      -       -      +
     56C  ARG*     1.3    69.3    +      -       +      +
     58C  CYS*     3.3    21.6    +      -       -      +
     59C  GLU*     3.9     3.5    +      -       -      +
     18D  LEU*     3.9    20.2    -      -       +      -
     21D  LEU*     5.2     1.1    -      -       +      -
     22D  HIS*     6.2     0.4    -      +       -      -
----------------------------------------------------------
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Residues in contact with ARG 56 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49C  ALA      5.7     0.4    +      -       -      -
     52C  GLU*     3.0    46.5    +      -       -      +
     53C  LEU*     3.7    29.6    -      -       +      +
     55C  PHE*     1.3    84.4    -      -       +      +
     57C  GLN*     1.3    59.8    +      -       -      +
     59C  GLU*     3.5    25.3    -      -       -      +
     60C  ASN*     4.0     8.8    +      -       -      -
     78D  LEU*     5.4     6.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 57 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53C  LEU*     2.6    23.8    +      -       -      +
     54C  THR      3.7     4.5    -      -       -      +
     56C  ARG*     1.3    71.3    -      -       -      +
     58C  CYS*     1.3    62.6    +      -       -      +
     59C  GLU      3.1     3.8    +      -       -      -
     60C  ASN*     3.4    12.6    +      -       -      +
     61C  PHE*     3.3    52.3    +      -       +      +
     42D  LEU*     5.4     0.9    -      -       +      -
     45D  PHE*     3.9    24.0    -      -       +      -
     78D  LEU*     4.3    17.5    -      -       -      +
     81D  PHE*     3.1    44.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 58 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54C  THR*     3.0    26.7    +      -       -      -
     55C  PHE*     3.3    11.4    +      -       -      +
     57C  GLN*     1.3    76.8    -      -       -      +
     59C  GLU*     1.3    60.2    +      -       -      +
     61C  PHE*     4.1     7.2    -      -       -      +
     62C  ALA*     3.2    25.8    +      -       -      +
     15D  VAL*     6.0     0.4    -      -       -      -
     18D  LEU*     3.6    47.9    -      -       +      +
     19D  LEU*     4.1     8.5    -      -       +      +
     42D  LEU*     3.8    28.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 59 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     55C  PHE      3.9     4.1    +      -       -      +
     56C  ARG*     3.5    18.3    +      -       -      +
     57C  GLN      3.1     0.4    -      -       -      -
     58C  CYS*     1.3    76.7    -      -       -      +
     60C  ASN*     1.3    79.2    +      -       -      +
     62C  ALA*     3.3     5.1    +      -       -      +
     63C  LYS*     3.0    55.7    +      -       +      +
     22D  HIS*     4.7    20.6    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 60 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     56C  ARG      4.0    10.5    +      -       -      -
     57C  GLN*     3.4    13.6    +      -       -      +
     59C  GLU*     1.3   100.2    +      -       -      +
     61C  PHE*     1.3    61.4    +      -       -      +
     63C  LYS*     4.5     5.5    -      -       -      +
     64C  ASP*     2.9    38.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 61 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     57C  GLN*     3.3    50.3    +      -       +      +
     58C  CYS*     4.1     6.5    -      -       -      +
     59C  GLU      3.3     0.4    -      -       -      -
     60C  ASN*     1.3    74.7    -      -       +      +
     62C  ALA*     1.3    55.3    +      -       -      +
     64C  ASP*     4.7     0.7    -      -       -      -
     65C  LEU*     2.8    42.0    +      -       -      +
     85C  LEU*     3.7    40.7    -      -       +      +
     19D  LEU*     4.7     4.5    -      -       +      -
     38D  MET*     3.9    18.8    -      -       +      -
     41D  LEU*     4.4    16.6    -      -       +      -
     42D  LEU*     3.8    31.2    -      -       +      -
     45D  PHE*     5.1     2.7    -      +       -      -
     81D  PHE*     4.1    26.7    -      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 62 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     58C  CYS      3.2    17.4    +      -       -      +
     59C  GLU*     3.7     4.0    -      -       -      +
     61C  PHE*     1.3    77.9    -      -       -      +
     63C  LYS*     1.3    58.5    +      -       -      +
     65C  LEU*     3.4     2.7    +      -       -      +
     66C  GLU*     2.8    29.5    +      -       -      +
     18D  LEU      4.9     0.7    -      -       -      +
     19D  LEU*     3.4    45.4    -      -       +      +
     22D  HIS*     4.8     5.8    -      -       +      +
     23D  PHE*     3.5    14.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 63 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     59C  GLU*     3.0    39.4    +      -       +      +
     60C  ASN*     4.5     4.9    -      -       -      +
     62C  ALA*     1.3    76.9    -      -       -      +
     64C  ASP*     1.3    55.9    +      -       -      +
     66C  GLU*     3.5     7.3    +      -       -      +
     67C  MET*     2.9    47.1    +      -       +      +
     22D  HIS*     2.8    57.6    +      -       -      +
     23D  PHE      4.7     0.2    -      -       -      -
     24D  LYS*     3.2    55.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 64 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     60C  ASN*     2.9    28.3    +      -       -      +
     61C  PHE      4.0     0.2    -      -       -      +
     63C  LYS*     1.3    69.5    -      -       -      +
     65C  LEU*     1.3    60.4    +      -       -      +
     67C  MET*     3.4    22.4    +      -       -      +
     68C  PHE*     2.9    45.8    +      -       +      -
     85C  LEU*     3.7    18.0    -      -       +      +
     87C  ARG*     3.4    22.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 65 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     61C  PHE      2.8    26.5    +      -       -      +
     62C  ALA      3.5     4.5    -      -       -      +
     64C  ASP*     1.3    71.4    -      -       -      +
     66C  GLU*     1.3    52.0    +      -       -      +
     68C  PHE*     3.3     7.1    +      -       +      +
     69C  ALA*     2.8    35.7    +      -       -      +
     77C  ILE*     3.6    28.7    -      -       +      +
     81C  ASP*     3.7    40.6    -      -       +      +
     82C  VAL*     3.8     7.2    -      -       +      +
     85C  LEU*     3.6    15.5    -      -       +      +
     19D  LEU*     3.8    33.9    -      -       +      -
     30D  VAL*     5.2     0.7    -      -       +      -
     38D  MET*     3.9    18.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 66 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     62C  ALA      2.8    20.4    +      -       -      +
     63C  LYS*     3.5    13.4    -      -       -      +
     65C  LEU*     1.3    70.6    -      -       -      +
     67C  MET*     1.3    65.6    +      -       -      +
     69C  ALA      3.1     0.3    +      -       -      -
     70C  ARG*     2.8    45.2    +      -       +      +
     77C  ILE*     4.5     0.6    -      -       -      +
     23D  PHE*     4.1     8.5    -      -       +      -
     24D  LYS*     2.8    38.7    +      -       -      +
     25D  ASP*     3.0    27.4    +      -       +      +
     28D  THR*     3.4    32.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with MET 67 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     63C  LYS*     2.9    42.8    +      -       +      +
     64C  ASP*     3.4    24.9    +      -       -      +
     66C  GLU*     1.3    85.5    -      -       -      +
     68C  PHE*     1.3    56.5    -      -       +      +
     70C  ARG*     5.2     1.8    -      -       -      -
     71C  HIS*     2.6    38.7    +      -       -      +
     24D  LYS*     5.7     3.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 68 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64C  ASP*     2.9    33.9    +      -       +      +
     65C  LEU*     3.5     7.0    -      -       -      +
     67C  MET*     1.3    83.5    -      -       +      +
     69C  ALA*     1.3    61.7    +      -       -      +
     71C  HIS*     3.4     8.3    +      +       +      +
     72C  ALA*     3.2    23.6    +      -       -      +
     81C  ASP*     3.4    39.2    -      -       -      +
     84C  LEU*     4.0    28.3    -      -       +      -
     85C  LEU*     3.5    25.1    -      -       +      -
     87C  ARG*     3.6    26.5    -      -       -      -
     71G  HIS*     5.6     6.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 69 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     65C  LEU      2.8    20.4    +      -       -      +
     66C  GLU*     3.1     4.7    +      -       -      +
     68C  PHE*     1.3    71.1    -      -       -      +
     70C  ARG*     1.3    60.4    -      -       -      +
     72C  ALA*     3.5     6.1    +      -       -      +
     74C  ARG*     3.0    35.7    +      -       -      +
     75C  THR      5.1     1.3    -      -       -      +
     76C  THR      4.3     4.3    -      -       -      -
     77C  ILE*     3.6    32.1    -      -       +      +
     81C  ASP*     3.6    11.9    -      -       -      +
     28D  THR*     4.5     5.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 70 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66C  GLU*     2.8    28.6    +      -       +      +
     67C  MET*     4.9     2.0    -      -       -      +
     69C  ALA*     1.3    72.7    -      -       -      +
     71C  HIS*     1.3    62.6    -      -       -      +
     72C  ALA      3.2     0.9    -      -       -      -
     73C  LYS*     3.3    14.7    +      -       -      +
     74C  ARG      3.9     8.3    -      -       -      +
     25D  ASP*     2.4    41.5    +      -       +      +
     27D  LYS*     2.8    33.7    -      -       -      +
     28D  THR*     5.6     2.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 71 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     67C  MET      2.6    25.5    +      -       -      +
     68C  PHE*     3.6    10.8    -      +       -      +
     69C  ALA      3.3     0.4    -      -       -      -
     70C  ARG*     1.3    79.1    -      -       -      +
     72C  ALA*     1.3    54.4    +      -       -      +
     73C  LYS*     3.5    12.5    +      -       -      -
     71G  HIS*     5.9     5.2    -      +       -      -
----------------------------------------------------------
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Residues in contact with ALA 72 (chain C). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68C  PHE      3.2    11.1    +      -       -      +
     69C  ALA      3.5     0.6    +      -       -      +
     70C  ARG      3.2     0.6    -      -       -      -
     71C  HIS*     1.3    77.6    -      -       -      +
     73C  LYS*     1.3    74.5    +      -       -      +
     74C  ARG*     3.3    40.5    +      -       -      +
     81C  ASP*     5.5     0.4    -      -       -      +
----------------------------------------------------------
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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