Contacts of the helix formed by residues 36 - 58 (chain A) in PDB entry 1JFZ


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 TYR 36 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  LYS*     3.2    11.2    +      -       -      +
     24A  ALA*     3.4    21.5    -      -       -      +
     26A  THR      3.0    28.3    +      -       -      -
     27A  HIS*     3.7    31.9    -      +       +      -
     28A  VAL      5.1     0.9    -      -       -      -
     35A  HIS*     1.3    73.5    -      +       -      +
     37A  GLU*     1.3    68.5    +      -       -      +
     38A  THR      3.2     3.1    -      -       -      -
     39A  LEU*     2.9     6.9    +      -       -      -
     40A  GLU*     2.8    33.5    +      -       +      -
     93A  ILE*     5.6     0.2    -      -       +      -
    104A  ILE*     3.6    23.9    -      -       +      +
    107A  ASP*     3.4    43.5    +      -       +      +
    108A  VAL*     3.7    24.5    -      -       +      -
    111A  ALA*     3.7     7.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 37 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     28A  VAL*     6.0     0.2    -      -       -      +
     35A  HIS*     3.3    32.2    +      -       +      +
     36A  TYR*     1.3    86.9    -      -       +      +
     38A  THR*     1.3    62.5    +      -       -      +
     40A  GLU*     3.7    11.9    +      -       -      +
     41A  PHE*     3.3    19.2    +      -       -      +
    262B  LYS      4.4     0.6    -      -       -      +
    263B  ARG*     3.4    20.8    -      -       -      +
    264B  GLU*     2.5    47.1    +      -       +      +
    265B  GLY      4.5     0.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 38 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23A  LYS*     6.2     2.2    -      -       -      -
     35A  HIS      4.4     3.9    +      -       -      -
     36A  TYR      3.2     0.8    -      -       -      -
     37A  GLU*     1.3    77.2    -      -       -      +
     39A  LEU*     1.3    68.1    +      -       +      +
     41A  PHE*     3.1    15.5    +      -       -      +
     42A  LEU*     3.2     8.8    +      -       -      +
    256B  VAL*     4.1    27.0    -      -       +      +
    262B  LYS*     2.4    62.2    +      -       +      +
    267B  LEU*     4.8     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 39 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     20A  LEU*     4.1    12.6    -      -       +      +
     23A  LYS*     3.3    42.0    -      -       +      +
     24A  ALA*     3.7    25.8    -      -       +      +
     35A  HIS      5.3     0.2    +      -       -      -
     36A  TYR*     2.9     6.6    +      -       -      +
     38A  THR*     1.3    77.0    -      -       +      +
     40A  GLU*     1.3    54.4    +      -       -      +
     42A  LEU*     2.9     5.0    +      -       +      +
     43A  GLY      2.7    33.1    +      -       -      -
    111A  ALA*     3.9    15.0    -      -       +      +
    114A  ALA*     3.1    10.1    -      -       +      +
    115A  ALA*     4.1    17.5    -      -       +      +
    118A  ILE*     3.7    30.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLU 40 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  TYR*     2.8    30.9    +      -       +      +
     37A  GLU*     3.8    14.0    -      -       -      +
     39A  LEU*     1.3    71.1    -      -       -      +
     41A  PHE*     1.3    65.4    +      -       -      +
     44A  ASP*     2.9    27.5    +      -       +      +
    107A  ASP*     2.7    38.6    -      -       -      +
    110A  GLU*     3.0    17.8    -      -       -      +
    111A  ALA*     3.9    12.8    -      -       -      +
    761A   MN      2.0    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 41 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  GLU      3.3    10.6    +      -       -      +
     38A  THR*     3.1    12.4    +      -       -      +
     40A  GLU*     1.3    83.3    -      -       -      +
     42A  LEU*     1.3    61.4    +      -       -      +
     44A  ASP*     3.4    16.5    -      -       +      +
     45A  ALA*     3.8     3.1    +      -       -      +
    252B  VAL*     3.8    19.7    -      -       +      +
    255B  LEU*     4.0    14.4    -      -       +      -
    256B  VAL*     4.0    10.8    -      -       +      -
    264B  GLU*     4.3    19.1    -      -       +      -
    267B  LEU*     3.3    49.8    -      -       +      -
    268B  SER*     3.9    17.7    -      -       -      -
    271B  LYS*     3.8    30.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 42 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  THR      3.2     6.4    +      -       -      +
     39A  LEU*     2.9     9.5    +      -       -      +
     41A  PHE*     1.3    76.9    -      -       -      +
     43A  GLY*     1.3    60.4    +      -       -      +
     44A  ASP      3.0     2.0    -      -       -      -
     45A  ALA*     2.9    19.9    +      -       -      +
     46A  LEU*     3.1    11.8    +      -       +      +
    114A  ALA*     3.9    14.6    -      -       +      -
    117A  TYR*     3.8    20.2    -      -       +      -
    118A  ILE*     4.2    13.2    -      -       +      -
    122A  ARG*     4.1     9.0    -      -       -      +
    249B  PHE*     4.4    15.7    -      -       +      -
    252B  VAL*     4.1     9.2    -      -       +      -
    253B  ASP*     3.8    43.7    -      -       +      +
    256B  VAL*     4.2    18.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 43 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     39A  LEU      2.7    13.9    +      -       -      -
     42A  LEU*     1.3    73.0    -      -       -      +
     44A  ASP*     1.3    55.6    +      -       -      +
     46A  LEU*     3.8     8.7    -      -       -      -
     47A  VAL*     2.8    36.6    +      -       -      +
    110A  GLU*     3.1    30.7    -      -       -      +
    114A  ALA*     3.4    10.0    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 44 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  GLU*     2.9    18.0    +      -       +      +
     41A  PHE*     3.4    13.2    -      -       +      +
     43A  GLY*     1.3    77.5    -      -       -      +
     45A  ALA*     1.3    61.9    +      -       -      +
     47A  VAL*     4.4     1.0    -      -       -      +
     48A  ASN*     3.1    26.3    +      -       -      +
     80A  PHE*     6.1     1.0    -      -       -      -
    110A  GLU*     3.7    29.0    -      -       -      +
    761A   MN      4.3     6.2    +      -       -      -
    248B  ASN*     5.9     0.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ALA 45 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     41A  PHE      3.8     1.4    +      -       -      +
     42A  LEU      2.9     8.7    +      -       -      +
     44A  ASP*     1.3    78.1    -      -       -      +
     46A  LEU*     1.3    59.7    +      -       -      +
     48A  ASN*     3.4     4.4    +      -       -      +
     49A  PHE*     3.0    29.3    +      -       -      +
    245B  ALA      4.5     0.3    -      -       -      +
    248B  ASN*     3.2    30.4    +      -       -      +
    249B  PHE*     3.7    22.7    -      -       +      +
    252B  VAL*     4.0    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 46 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42A  LEU*     3.1    13.2    +      -       +      +
     43A  GLY*     3.5     8.7    -      -       -      +
     45A  ALA*     1.3    76.2    -      -       -      +
     47A  VAL*     1.3    62.2    +      -       -      +
     49A  PHE*     3.0    16.2    +      -       +      +
     50A  PHE*     3.0    62.9    +      -       +      -
    113A  TRP*     3.4    41.3    -      -       +      +
    114A  ALA*     4.0     2.5    -      -       -      +
    117A  TYR*     4.1    23.6    -      -       +      -
    124A  ALA*     5.2     1.1    -      -       +      -
    127A  THR*     4.2     0.4    -      -       +      -
    249B  PHE*     4.1    33.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 47 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     43A  GLY      2.8    22.6    +      -       -      +
     44A  ASP*     4.4     1.1    -      -       -      +
     46A  LEU*     1.3    71.3    -      -       -      +
     48A  ASN*     1.3    67.2    +      -       -      +
     49A  PHE      3.1     0.2    +      -       -      -
     50A  PHE*     3.1     9.3    +      -       +      +
     51A  ILE*     3.0    36.5    +      -       +      +
     80A  PHE*     3.3    34.8    -      -       +      -
    109A  PHE*     4.7     3.6    -      -       +      -
    110A  GLU*     4.6     8.3    -      -       +      -
    113A  TRP*     3.9    36.8    -      -       +      -
    131A  PHE*     4.2    13.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 48 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44A  ASP*     3.1    23.3    +      -       -      +
     45A  ALA*     3.6     7.4    +      -       -      +
     47A  VAL*     1.3    81.1    -      -       -      +
     49A  PHE*     1.3    56.4    -      -       -      +
     51A  ILE*     3.7     2.0    +      -       -      +
     52A  VAL*     3.2    26.2    +      -       -      +
     71A  LYS*     2.9    37.7    +      -       -      +
     75A  ILE*     3.7    19.2    -      -       +      +
     80A  PHE*     5.4     0.8    -      -       +      -
    244B  ASP*     5.5     2.0    +      -       -      -
    245B  ALA*     3.6    24.9    -      -       -      +
    248B  ASN*     4.8     7.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 49 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45A  ALA      3.0    12.3    +      -       -      +
     46A  LEU*     3.0     9.9    +      -       +      +
     48A  ASN*     1.3    74.7    -      -       -      +
     50A  PHE*     1.3    90.2    +      +       -      +
     51A  ILE      3.1     1.8    -      -       -      -
     52A  VAL*     3.4     0.5    +      -       -      +
     53A  ASP*     3.1    25.0    +      -       -      +
    124A  ALA*     5.4     0.7    -      -       +      -
    128A  ARG*     4.8     4.0    -      -       -      -
    242B  LEU*     4.3    11.9    -      -       +      -
    245B  ALA*     3.9    17.3    -      -       +      +
    246B  LEU*     3.8    36.6    -      -       +      -
    249B  PHE*     4.3    23.3    -      +       +      -
    317B  TYR*     3.2    44.6    -      +       -      -
    324B  ALA*     4.3    14.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 50 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     46A  LEU*     3.0    48.2    +      -       +      -
     47A  VAL*     3.1    13.2    +      -       +      +
     49A  PHE*     1.3    91.0    -      +       -      +
     51A  ILE*     1.3    61.7    +      -       -      +
     53A  ASP*     4.5     0.7    -      -       -      -
     54A  LEU*     3.3     8.3    +      -       -      +
    113A  TRP*     4.6     2.0    -      +       +      -
    124A  ALA*     3.8     7.0    -      -       -      -
    127A  THR*     3.5    27.8    -      -       +      -
    128A  ARG*     3.3    44.4    -      -       +      -
    131A  PHE*     3.5    42.4    -      +       +      -
    132A  TYR*     2.7    32.4    +      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 51 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47A  VAL*     3.0    41.7    +      -       +      +
     48A  ASN*     4.1     3.6    -      -       -      +
     50A  PHE*     1.3    77.9    -      -       -      +
     52A  VAL*     1.3    64.2    +      -       +      +
     53A  ASP      3.2     0.4    -      -       -      -
     54A  LEU*     3.4     6.1    +      -       -      +
     55A  LEU*     2.8    26.4    +      -       +      +
     71A  LYS*     5.3     4.9    -      -       +      -
     74A  LEU*     3.8    38.6    -      -       +      +
     75A  ILE*     4.6     9.9    -      -       +      -
     80A  PHE*     3.7    19.5    -      -       +      -
     83A  LEU*     5.3     3.1    -      -       +      -
    131A  PHE*     4.1    10.5    -      -       +      -
    139A  ILE*     3.7    27.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 52 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48A  ASN      3.2    18.8    +      -       -      +
     49A  PHE      3.4     0.8    +      -       -      +
     51A  ILE*     1.3    77.6    -      -       +      +
     53A  ASP*     1.3    53.9    +      -       -      +
     55A  LEU*     3.0     5.7    +      -       -      +
     56A  VAL*     2.5    36.3    +      -       +      +
     71A  LYS*     4.1    28.9    -      -       +      +
    241B  PHE*     3.6    42.6    -      -       +      +
    242B  LEU*     3.9    23.6    -      -       +      -
    245B  ALA*     4.0    16.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 53 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49A  PHE*     3.1    20.9    +      -       +      +
     50A  PHE*     3.5     1.1    -      -       -      +
     52A  VAL*     1.3    74.3    -      -       -      +
     54A  LEU*     1.3    66.6    +      -       -      +
     56A  VAL*     3.7     0.8    -      -       -      +
     57A  GLN*     2.8    31.1    +      -       -      +
    128A  ARG*     3.8    10.0    -      -       -      -
    132A  TYR*     3.5    13.2    -      -       -      +
    242B  LEU*     3.9    13.1    -      -       +      +
    317B  TYR*     2.4    40.3    +      -       -      -
    322B  ARG*     3.0    35.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 54 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50A  PHE      3.3     5.7    +      -       -      +
     51A  ILE      3.8     6.5    -      -       -      +
     52A  VAL      3.4     0.2    -      -       -      -
     53A  ASP*     1.3    77.3    -      -       -      +
     55A  LEU*     1.3    57.9    +      -       -      +
     57A  GLN*     3.9     7.6    -      -       -      +
     58A  TYR*     2.8    49.3    +      -       +      +
    132A  TYR*     3.3    43.9    +      -       +      -
    136A  LYS*     3.5    45.5    -      -       +      -
    139A  ILE*     3.8    41.5    -      -       +      -
    140A  LEU*     5.8     1.6    -      -       +      -
    143A  ILE*     5.3     2.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 55 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51A  ILE*     2.8    16.3    +      -       +      +
     52A  VAL*     3.1    10.5    -      -       -      +
     54A  LEU*     1.3    77.9    -      -       -      +
     56A  VAL*     1.3    63.6    +      -       -      +
     58A  TYR      2.9    19.4    -      -       -      +
     59A  SER*     3.4    10.2    -      -       -      -
     67A  LEU*     3.6    38.1    -      -       +      +
     70A  LEU*     3.3    29.2    -      -       +      -
     71A  LYS*     3.7    19.7    -      -       +      -
     74A  LEU*     4.0    16.8    -      -       +      -
    139A  ILE*     5.7     0.2    -      -       -      +
    143A  ILE*     4.1    18.6    -      -       +      -
    241B  PHE*     3.9    17.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 56 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52A  VAL*     2.5    30.2    +      -       +      +
     53A  ASP*     3.7     4.7    -      -       -      +
     55A  LEU*     1.3    71.5    -      -       -      +
     57A  GLN*     1.3    65.9    +      -       -      +
     58A  TYR      2.9    10.0    -      -       -      +
     62A  LYS*     3.2    18.2    +      -       -      +
     67A  LEU*     4.9     7.2    -      -       +      -
    238B  THR*     4.1    29.8    -      -       +      +
    239B  LEU*     6.4     0.2    -      -       -      -
    241B  PHE*     4.3     8.1    -      -       +      -
    242B  LEU*     3.8    32.5    -      -       +      +
    318B  ILE*     5.2     5.6    -      -       +      -
    322B  ARG*     4.0    16.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 57 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53A  ASP*     2.8    28.0    +      -       -      +
     54A  LEU*     3.7    23.8    -      -       -      +
     56A  VAL*     1.3    77.1    -      -       -      +
     58A  TYR*     1.3    80.9    +      -       +      +
     62A  LYS*     4.7     4.9    +      -       -      -
    132A  TYR*     4.6     7.5    +      -       -      -
    322B  ARG*     3.3    45.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 58 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     54A  LEU*     2.8    39.5    +      -       +      +
     55A  LEU      2.9     6.7    -      -       -      +
     56A  VAL      2.9     9.0    -      -       -      +
     57A  GLN*     1.3    95.4    +      -       +      +
     59A  SER*     1.3    82.0    +      -       -      +
     62A  LYS*     3.1     2.4    -      -       -      -
    136A  LYS*     2.7    43.3    +      -       -      -
    140A  LEU*     4.1    32.3    -      -       +      -
    143A  ILE*     4.9     4.9    -      -       +      -
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


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

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

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