Contacts of the helix formed by residues 422 - 448 (chain D) in PDB entry 1MKD


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 PRO 422 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    199D  TRP*     4.9     3.1    -      -       +      -
    200D  GLY*     3.8    23.6    -      -       -      +
    420D  THR      4.8     0.4    -      -       -      +
    421D  LYS*     1.3    87.0    -      -       +      +
    423D  LEU*     1.3    67.2    -      -       -      +
    424D  GLN*     3.2     6.1    -      -       +      +
    425D  LEU*     2.9    33.6    +      -       +      +
    426D  TYR      3.0     9.9    +      -       -      -
    495D  THR*     4.6     7.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 423 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    421D  LYS      3.3     3.3    +      -       -      -
    422D  PRO*     1.3    68.8    -      -       -      +
    424D  GLN*     1.3    62.4    +      -       -      +
    426D  TYR*     4.2    12.3    -      -       +      -
    427D  ARG*     2.9    51.6    +      -       +      +
    495D  THR*     5.4     0.2    -      -       -      +
    499D  ASN*     3.4    30.1    +      -       +      +
    502D  TRP*     3.6    54.3    -      -       +      +
    503D  TYR*     4.6     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 424 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202D  HIS*     3.1    34.2    +      -       -      -
    205D  ARG*     4.5     7.5    +      -       -      +
    422D  PRO*     3.1     5.3    +      -       +      +
    423D  LEU*     1.3    78.4    -      -       -      +
    425D  LEU*     1.3    60.0    +      -       +      +
    427D  ARG*     4.0     7.6    +      -       -      +
    428D  GLN*     3.2    40.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 425 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    200D  GLY*     3.5    26.5    -      -       -      +
    201D  LEU      3.8    12.1    -      -       -      +
    202D  HIS*     4.1    27.4    -      -       +      +
    203D  VAL*     4.7     5.8    -      -       +      +
    204D  PHE*     3.8    25.8    -      -       +      -
    421D  LYS*     4.2    13.2    -      -       +      -
    422D  PRO*     2.9    31.6    +      -       +      +
    424D  GLN*     1.3    78.1    -      -       +      +
    426D  TYR*     1.3    67.4    +      -       -      +
    428D  GLN*     2.8    19.3    +      -       -      +
    429D  TRP*     3.1    24.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with TYR 426 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    418D  ASN*     3.4    25.7    +      -       +      +
    419D  PRO*     3.5    25.2    -      -       +      +
    421D  LYS*     4.1     2.9    -      -       -      +
    422D  PRO      3.0     9.6    +      -       -      +
    423D  LEU*     3.7    10.8    -      -       +      +
    425D  LEU*     1.3    78.7    -      -       -      +
    427D  ARG*     1.3    57.7    +      -       -      +
    429D  TRP*     3.1     9.1    +      -       -      +
    430D  THR*     2.9    40.5    +      -       -      -
    466D  GLN*     2.7    29.9    +      -       -      +
    470D  ILE*     3.4    21.4    -      -       +      +
    499D  ASN*     3.7    29.4    -      -       +      -
    503D  TYR*     3.5    26.5    -      +       -      -
   3004D  ZAR      3.5    15.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 427 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    423D  LEU*     2.9    43.5    +      -       +      +
    424D  GLN*     4.1     7.3    -      -       -      +
    426D  TYR*     1.3    74.0    -      -       -      +
    428D  GLN*     1.3    64.8    +      -       +      +
    430D  THR*     3.3     2.4    +      -       -      -
    431D  ASP*     3.0    31.1    +      -       -      +
    502D  TRP*     3.1    39.3    -      -       +      -
    503D  TYR*     3.6    19.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 428 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202D  HIS*     3.8    11.7    +      -       -      -
    204D  PHE*     3.4    39.2    -      -       +      +
    424D  GLN*     3.2    46.9    +      -       +      +
    425D  LEU*     2.8     8.6    +      -       -      +
    427D  ARG*     1.3    76.6    -      -       +      +
    429D  TRP*     1.3    64.2    +      -       -      +
    431D  ASP*     3.2    12.0    +      -       -      +
    432D  ARG*     3.1    29.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with TRP 429 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    203D  VAL*     4.0    11.2    -      -       +      +
    204D  PHE*     3.5    28.7    -      +       -      -
    256D  TYR*     3.6    28.1    -      +       +      -
    258D  ASN*     5.3     1.1    -      -       -      -
    260D  ILE*     3.8    14.6    -      -       +      -
    261D  HIS*     3.7    37.5    -      -       +      -
    264D  ASP*     3.4    30.6    +      -       +      -
    418D  ASN*     3.4    40.2    -      -       +      +
    421D  LYS*     5.4     4.1    -      -       +      +
    425D  LEU*     3.1    34.1    +      -       +      +
    426D  TYR*     3.3     7.4    -      -       -      +
    428D  GLN*     1.3    74.6    -      -       -      +
    430D  THR*     1.3    60.4    +      -       -      +
    432D  ARG*     3.0    13.0    +      -       -      +
    433D  ILE*     2.8    26.5    +      -       -      +
   3004D  ZAR      3.3     9.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 430 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    426D  TYR*     2.9    32.9    +      -       -      -
    427D  ARG      3.6     4.3    -      -       -      -
    429D  TRP*     1.3    75.7    -      -       -      +
    431D  ASP*     1.3    65.0    +      -       -      +
    433D  ILE*     3.1     3.3    -      -       -      +
    434D  MET*     3.0    24.0    +      -       +      +
    462D  VAL*     3.8    19.7    -      -       +      -
    466D  GLN*     3.4    28.5    -      -       +      +
    503D  TYR*     3.2    27.1    +      -       -      +
   3004D  ZAR      3.3    11.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 431 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    427D  ARG*     3.0    22.2    +      -       -      +
    428D  GLN*     3.5    11.2    -      -       -      +
    429D  TRP      3.1     0.2    -      -       -      -
    430D  THR*     1.3    81.3    -      -       -      +
    432D  ARG*     1.3    58.2    +      -       +      +
    434D  MET*     3.8     4.6    -      -       -      +
    435D  GLU*     2.8    31.5    +      -       -      +
    462D  VAL*     5.6     3.1    -      -       -      +
    503D  TYR*     5.5     0.5    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 432 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204D  PHE*     3.1    36.5    -      -       -      -
    255D  ALA*     2.8    57.2    +      -       +      +
    256D  TYR*     4.0     7.6    -      -       +      -
    258D  ASN*     4.0     8.9    -      -       -      +
    260D  ILE*     3.7    21.3    -      -       -      +
    428D  GLN*     3.1    19.3    +      -       -      +
    429D  TRP*     3.0    18.6    +      -       -      +
    431D  ASP*     1.3    74.6    -      -       +      +
    433D  ILE*     1.3    65.5    +      -       -      +
    435D  GLU*     3.1    10.7    +      -       -      +
    436D  GLU*     3.0    19.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 433 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    256D  TYR*     3.5    42.0    -      -       +      -
    257D  HIS*     3.9    11.4    -      -       +      -
    429D  TRP      2.8     9.5    +      -       -      +
    430D  THR*     3.1    15.0    -      -       -      +
    432D  ARG*     1.3    72.9    -      -       -      +
    434D  MET*     1.3    71.6    +      -       +      +
    436D  GLU*     3.2     3.8    +      -       +      +
    437D  PHE*     2.9    65.4    +      -       +      -
    466D  GLN*     4.6     1.1    -      -       -      +
   3004D  ZAR      3.5    47.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with MET 434 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    430D  THR*     3.0    19.3    +      -       +      +
    431D  ASP*     3.8     4.7    -      -       -      +
    433D  ILE*     1.3    85.1    -      -       +      +
    435D  GLU*     1.3    66.1    +      -       -      +
    437D  PHE*     3.8     6.2    -      -       -      +
    438D  PHE*     3.1    64.9    +      -       +      -
    454D  MET*     3.6    45.3    -      -       +      +
    460D  ALA*     4.1     6.1    -      -       +      -
    462D  VAL*     3.8    41.3    -      -       +      +
    465D  SER*     5.2     1.1    -      -       -      +
    466D  GLN*     4.8     5.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 435 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255D  ALA*     3.7    19.6    -      -       +      +
    431D  ASP      2.8    18.3    +      -       -      +
    432D  ARG*     3.1    12.0    +      -       -      +
    434D  MET*     1.3    77.8    -      -       -      +
    436D  GLU*     1.3    51.5    +      -       -      +
    438D  PHE*     4.4     6.6    -      -       -      +
    439D  PRO*     2.6    33.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 436 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254D  VAL*     3.2    15.1    -      -       +      +
    255D  ALA*     4.1     8.7    -      -       +      +
    256D  TYR*     2.7    32.0    +      -       -      +
    257D  HIS*     2.7    38.9    +      -       -      -
    301D  HIS*     4.2     0.3    -      -       -      -
    303D  GLY*     3.2    35.5    -      -       -      +
    432D  ARG      3.0    13.8    +      -       -      +
    433D  ILE*     3.6     6.5    -      -       -      +
    435D  GLU*     1.3    77.6    -      -       -      +
    437D  PHE*     1.3    69.5    +      -       +      +
    438D  PHE      3.3     0.4    -      -       -      -
    439D  PRO*     3.1    13.5    -      -       -      +
    440D  GLN*     3.5    11.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 437 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257D  HIS*     5.3     4.7    -      +       -      -
    303D  GLY      6.1     0.7    -      -       -      -
    433D  ILE*     2.9    50.6    +      -       +      +
    434D  MET*     3.8    11.9    -      -       -      +
    436D  GLU*     1.3    82.5    -      -       +      +
    438D  PHE*     1.3    57.2    +      -       -      +
    440D  GLN*     3.1    12.1    +      -       -      +
    441D  GLY      2.9    21.5    +      -       -      -
    454D  MET*     3.7    49.4    -      -       +      +
    455D  CYS*     3.2    35.2    -      -       -      +
   3004D  ZAR      4.0    29.8    -      +       -      -
----------------------------------------------------------
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Residues in contact with PHE 438 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    434D  MET*     3.1    43.9    +      -       +      -
    435D  GLU*     4.4     3.8    -      -       -      +
    437D  PHE*     1.3    76.4    -      -       -      +
    439D  PRO*     1.4    58.3    -      -       +      +
    441D  GLY*     2.8     3.6    +      -       -      -
    442D  ASP*     2.7    39.1    +      -       -      +
    454D  MET      3.4    19.5    -      -       -      -
    455D  CYS      3.5     9.2    -      -       -      +
    457D  LYS*     3.5    50.9    -      -       +      +
    460D  ALA*     3.6    21.8    -      -       +      -
    462D  VAL*     4.8     5.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with PRO 439 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    435D  GLU*     2.6    32.1    -      -       +      +
    436D  GLU*     3.1    11.7    -      -       -      +
    438D  PHE*     1.4    87.4    -      -       +      +
    440D  GLN*     1.3    54.6    +      -       -      +
    442D  ASP*     3.3    15.1    +      -       +      +
    443D  ARG*     2.8    35.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLN 440 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303D  GLY      4.0     3.7    +      -       -      +
    304D  VAL*     3.2    18.9    -      -       +      -
    305D  SER*     3.0    45.4    +      -       -      -
    308D  PHE*     3.8    20.4    -      -       +      +
    436D  GLU      3.5     9.1    +      -       -      +
    437D  PHE*     3.1    16.0    +      -       -      +
    438D  PHE      3.0     0.6    -      -       -      -
    439D  PRO*     1.3    78.6    -      -       -      +
    441D  GLY*     1.3    59.1    +      -       -      +
    443D  ARG*     3.1     9.6    +      -       -      +
    444D  GLU*     2.8    52.4    +      -       -      +
    452D  SER*     3.8     8.9    +      -       -      -
    455D  CYS*     4.0    14.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 441 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    437D  PHE      2.9     7.9    +      -       -      -
    438D  PHE      2.8     3.8    +      -       -      -
    440D  GLN*     1.3    77.8    -      -       -      +
    442D  ASP*     1.3    56.7    +      -       -      +
    444D  GLU*     3.3    14.0    +      -       -      -
    445D  ARG*     2.9    27.9    +      -       -      +
    451D  ILE*     3.0    16.7    -      -       -      +
    455D  CYS*     3.2    25.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 442 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    438D  PHE*     2.7    21.9    +      -       -      +
    439D  PRO*     3.5    16.8    -      -       +      +
    441D  GLY*     1.3    70.3    -      -       -      +
    443D  ARG*     1.3    66.9    +      -       -      +
    445D  ARG*     2.8    44.8    +      -       -      +
    446D  GLU*     2.9    26.4    +      -       +      +
    457D  LYS*     3.1    37.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 443 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302D  PRO      5.3     4.0    +      -       -      -
    304D  VAL*     3.8    19.2    -      -       -      +
    308D  PHE*     3.3    34.0    -      -       +      -
    439D  PRO*     2.8    25.5    +      -       +      +
    440D  GLN*     3.2    11.7    -      -       -      +
    442D  ASP*     1.3    77.4    -      -       -      +
    444D  GLU*     1.3    57.5    +      -       -      +
    446D  GLU*     3.4    18.8    +      -       -      +
    447D  ARG*     3.0    61.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 444 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308D  PHE*     3.6    23.3    -      -       +      +
    311D  ASN*     5.7     0.9    +      -       -      -
    440D  GLN*     2.8    32.9    +      -       -      +
    441D  GLY*     3.6    14.2    -      -       -      +
    443D  ARG*     1.3    75.4    -      -       -      +
    445D  ARG*     1.3    63.6    +      -       -      +
    447D  ARG      3.4     0.5    +      -       -      -
    448D  GLY      3.0     2.6    +      -       -      -
    449D  MET*     2.8    56.6    +      -       +      +
    450D  GLU      4.1     6.1    -      -       -      +
    451D  ILE*     3.6     9.8    -      -       +      -
    452D  SER*     2.6    51.5    +      -       -      -
    455D  CYS*     4.2     0.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with ARG 445 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    441D  GLY      2.9    15.7    +      -       -      +
    442D  ASP*     2.8    39.6    +      -       -      +
    444D  GLU*     1.3    75.0    -      -       -      +
    446D  GLU*     1.3    64.3    +      -       +      +
    448D  GLY*     3.1    12.3    +      -       -      -
    449D  MET      4.7     1.6    -      -       -      -
    451D  ILE*     3.3    16.7    -      -       +      +
    456D  ASP*     3.0    28.7    +      -       -      +
    457D  LYS*     3.8    15.6    -      -       -      +
    458D  HIS*     3.8    27.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 446 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    442D  ASP*     2.9    28.7    +      -       +      +
    443D  ARG*     3.4    26.4    +      -       -      +
    445D  ARG*     1.3    74.3    -      -       +      +
    447D  ARG*     1.3    70.1    +      -       -      +
    448D  GLY*     2.9     6.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 447 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308D  PHE*     4.0     8.2    -      -       +      -
    312D  THR*     4.1    17.0    -      -       +      +
    443D  ARG*     3.0    63.3    +      -       -      +
    444D  GLU      3.7     1.3    -      -       -      +
    446D  GLU*     1.3    85.0    +      -       -      +
    448D  GLY*     1.3    59.3    +      -       -      +
    449D  MET*     3.1    37.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 448 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    444D  GLU      3.0     2.8    +      -       -      -
    445D  ARG*     3.1    11.2    +      -       -      -
    446D  GLU      2.9     7.9    +      -       -      -
    447D  ARG*     1.3    79.5    -      -       -      +
    449D  MET*     1.3    63.7    +      -       -      +
    450D  GLU      4.1     0.2    +      -       -      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il