Contacts of the helix formed by residues 74 - 102 (chain 2) in PDB entry 3KMB


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 ILE 74 (chain 2).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     741  ILE*     3.6    28.7    -      -       +      -
     732  ALA*     1.3    78.4    -      -       +      +
     752  GLU*     1.3    65.3    +      -       -      +
     772  LYS*     3.3     9.4    +      -       +      +
     782  LEU*     2.8    30.1    +      -       -      +
     743  ILE*     4.3    13.0    -      -       +      -
     753  GLU*     3.8    32.1    -      -       +      +
     783  LEU*     3.9    25.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 75 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     741  ILE*     3.7    26.5    -      -       +      +
     771  LYS*     6.3     1.1    -      -       -      +
     732  ALA      3.3     6.3    +      -       -      -
     742  ILE*     1.3    85.6    +      -       -      +
     762  VAL*     1.3    59.3    +      -       +      +
     782  LEU*     3.7     2.7    -      -       -      +
     792  ALA*     3.0    28.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 76 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     732  ALA*     2.9    21.6    +      -       -      +
     752  GLU*     1.3    75.7    -      -       +      +
     772  LYS*     1.3    61.7    +      -       -      +
     792  ALA*     3.3     4.9    +      -       -      +
     802  ASN*     2.9    52.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 77 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     732  ALA*     2.7    21.6    +      -       +      +
     742  ILE*     3.6     9.2    -      -       +      +
     762  VAL*     1.3    74.0    -      -       -      +
     782  LEU*     1.3    61.0    +      -       -      +
     802  ASN*     3.5     7.9    +      -       +      +
     812  MET*     3.1    38.4    +      -       +      +
     783  LEU*     4.2    26.2    -      -       +      -
     793  ALA*     5.3     5.6    -      -       -      +
     823  GLU*     2.9    35.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 78 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     741  ILE*     3.4    34.5    -      -       +      +
     771  LYS*     3.6    30.3    -      -       +      +
     781  LEU*     4.0    10.1    -      -       +      +
     811  MET*     3.8    27.1    -      -       +      -
     742  ILE*     2.8    17.5    +      -       +      +
     752  GLU*     3.7     5.2    -      -       -      +
     772  LYS*     1.3    74.1    -      -       -      +
     792  ALA*     1.3    65.2    +      -       -      +
     812  MET*     3.1     4.8    +      -       -      +
     822  GLU*     2.9    36.2    +      -       -      +
     783  LEU*     3.8    27.3    -      -       +      +
     813  MET*     4.5     1.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 79 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     752  GLU      3.0    17.9    +      -       -      +
     762  VAL*     3.3     6.9    +      -       -      +
     782  LEU*     1.3    74.5    -      -       -      +
     802  ASN*     1.3    66.6    +      -       -      +
     822  GLU*     3.3    18.5    +      -       -      +
     832  ALA*     3.1    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 80 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     762  VAL*     2.9    36.2    +      -       -      +
     772  LYS*     3.7     8.8    -      -       -      +
     782  LEU      3.2     0.2    -      -       -      -
     792  ALA*     1.3    78.5    -      -       -      +
     812  MET*     1.3    58.4    +      -       +      +
     832  ALA*     3.2    10.5    +      -       -      +
     842  GLU*     3.1    32.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with MET 81 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     811  MET*     4.2     2.5    -      -       -      -
     772  LYS*     3.1    24.9    +      -       +      +
     782  LEU*     3.1     5.8    +      -       -      +
     802  ASN*     1.3    76.3    -      -       +      +
     822  GLU*     1.3    63.5    +      -       -      +
     842  GLU*     3.2    12.7    +      -       +      +
     852  ILE*     3.0    26.3    +      -       -      +
     783  LEU*     3.5    31.2    -      -       -      +
     813  MET*     3.4    34.3    -      -       +      -
     823  GLU*     3.2    44.9    -      -       +      +
     853  ILE*     3.6    11.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 82 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     771  LYS*     4.0    36.6    +      -       -      +
     801  ASN*     5.2     3.8    +      -       -      -
     811  MET*     3.4    37.7    -      -       +      +
     782  LEU*     2.9    24.0    +      -       -      +
     792  ALA*     3.3    20.0    +      -       -      +
     812  MET*     1.3    75.8    -      -       -      +
     832  ALA*     1.3    63.3    +      -       -      +
     852  ILE*     3.4     2.8    +      -       -      +
     862  ASN*     3.1    33.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 83 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     792  ALA      3.1    13.0    +      -       -      +
     802  ASN*     3.3    13.2    -      -       -      +
     812  MET      3.2     0.2    -      -       -      -
     822  GLU*     1.3    78.1    -      -       -      +
     842  GLU*     1.3    61.7    +      -       +      +
     862  ASN*     3.3     8.6    +      -       -      +
     872  THR*     3.0    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 84 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     802  ASN*     3.1    22.3    +      -       +      +
     812  MET*     3.2    14.8    +      -       +      +
     832  ALA*     1.3    77.9    -      -       +      +
     852  ILE*     1.3    56.4    +      -       -      +
     872  THR*     3.3    11.1    +      -       -      +
     882  LEU*     2.9    33.7    +      -       -      +
     853  ILE*     4.1    18.6    -      -       +      -
     893  LYS*     2.9    31.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 85 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     811  MET*     3.1    39.9    -      -       +      +
     841  GLU*     4.0    18.6    -      -       +      +
     851  ILE*     3.8    22.7    -      -       +      -
     881  LEU*     4.5    10.3    -      -       +      -
     812  MET      3.0     9.9    +      -       -      +
     822  GLU      3.7     7.2    -      -       -      +
     842  GLU*     1.3    76.8    -      -       -      +
     862  ASN*     1.3    60.7    +      -       -      +
     882  LEU*     3.1     9.0    +      -       +      +
     892  LYS*     2.9    51.9    +      -       +      +
     853  ILE*     3.6    29.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASN 86 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     841  GLU*     5.3     2.8    +      -       -      -
     822  GLU*     3.1    20.5    +      -       -      +
     832  ALA*     3.6     9.8    -      -       -      +
     852  ILE*     1.3    79.6    -      -       -      +
     872  THR*     1.3    63.2    +      -       -      +
     892  LYS*     3.3    30.1    +      -       -      +
     902  SER*     3.1    25.9    +      -       -      -
----------------------------------------------------------
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Residues in contact with THR 87 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     832  ALA*     3.0    14.1    +      -       -      +
     842  GLU*     3.5    15.9    -      -       -      +
     862  ASN*     1.3    79.2    -      -       -      +
     882  LEU*     1.3    57.3    +      -       +      +
     902  SER*     3.2     9.2    +      -       -      -
     912  LYS*     3.0    55.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 88 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     881  LEU*     4.0    18.6    -      -       +      +
     842  GLU      2.9    13.8    +      -       -      +
     852  ILE*     3.5     9.6    -      -       -      +
     872  THR*     1.3    73.8    -      -       +      +
     892  LYS*     1.3    59.1    +      -       -      +
     912  LYS*     3.2    14.2    +      -       +      +
     922  LEU*     3.0    29.1    +      -       -      +
     853  ILE*     3.9    27.4    -      -       +      +
     883  LEU*     4.1    15.3    -      -       +      -
     893  LYS*     3.7    45.3    -      -       +      +
     923  LEU*     3.9    24.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 89 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     841  GLU*     3.0    30.3    +      -       -      +
     871  THR*     6.4     1.1    -      -       -      -
     881  LEU*     3.8    29.2    -      -       +      -
     911  LYS*     6.2     1.8    -      -       -      +
     852  ILE*     2.9    35.4    +      -       +      +
     862  ASN*     3.5    23.8    -      -       -      +
     882  LEU*     1.3    76.0    -      -       -      +
     902  SER*     1.3    62.4    +      -       -      +
     922  LEU*     3.5     2.8    +      -       -      +
     932  GLU*     3.1    24.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 90 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     862  ASN      3.1    14.6    +      -       -      -
     872  THR*     3.4    11.1    -      -       -      -
     882  LEU      3.2     0.2    -      -       -      -
     892  LYS*     1.3    77.6    -      -       -      +
     912  LYS*     1.3    61.6    +      -       -      +
     932  GLU*     3.2     8.8    +      -       -      +
     942  LEU*     3.0    22.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 91 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     872  THR*     3.0    40.7    +      -       +      +
     882  LEU*     3.5    19.7    -      -       +      +
     902  SER*     1.3    77.9    -      -       -      +
     922  LEU*     1.3    57.0    +      -       -      +
     942  LEU*     3.1    14.2    +      -       +      +
     952  THR*     2.9    28.6    +      -       -      -
     923  LEU*     3.6    18.2    -      -       +      -
     963  ASN*     5.4     2.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 92 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     881  LEU*     4.0    18.6    -      -       +      -
     911  LYS*     3.7    33.7    -      -       +      +
     921  LEU*     3.7    39.3    -      -       +      +
     951  THR*     3.7    22.9    -      -       +      +
     882  LEU      3.0    15.6    +      -       -      +
     892  LYS      3.8     4.7    -      -       -      +
     912  LYS*     1.3    73.4    -      -       -      +
     932  GLU*     1.3    65.9    +      -       -      +
     952  THR*     3.0     8.8    +      -       -      -
     962  ASN*     2.9    27.7    +      -       -      +
     923  LEU*     3.7    16.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLU 93 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      41   CA      2.4    30.0    -      -       -      -
     892  LYS      3.1    14.6    +      -       -      +
     902  SER*     3.2    11.6    +      -       -      +
     922  LEU*     1.3    76.6    -      -       -      +
     942  LEU*     1.3    57.6    +      -       -      +
     962  ASN*     3.2    19.1    +      -       -      +
     972  LYS*     3.0    50.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 94 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     902  SER      3.0    12.2    +      -       -      +
     912  LYS*     3.3    15.7    -      -       +      +
     922  LEU      3.1     0.2    -      -       -      -
     932  GLU*     1.3    74.9    -      -       -      +
     952  THR*     1.3    65.4    +      -       -      +
     972  LYS*     3.2     9.3    +      -       +      +
     982  LEU*     2.9    27.3    +      -       +      +
    1303  GLU      3.3    26.0    -      -       -      +
    1313  LEU*     3.6    24.2    -      -       +      +
    1323  ARG*     3.4    30.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 95 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     951  THR*     4.1     9.0    -      -       +      -
     912  LYS      2.9    13.9    +      -       -      -
     922  LEU*     3.2    12.6    -      -       -      -
     942  LEU*     1.3    77.0    -      -       -      +
     962  ASN*     1.3    56.8    +      -       -      +
     982  LEU*     3.4     5.8    +      -       -      +
     992  HIS*     2.9    28.8    +      -       -      +
     923  LEU*     3.5    11.0    -      -       +      +
     953  THR*     4.0    10.8    -      -       +      -
     963  ASN*     2.8    34.4    +      -       -      +
     993  HIS*     3.9    27.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 96 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     911  LYS*     6.0     0.5    -      -       -      +
     951  THR*     2.7    42.7    +      -       -      +
     981  LEU*     6.0     4.2    -      -       -      +
     922  LEU*     2.9    22.9    +      -       -      +
     932  GLU*     3.4    26.5    -      -       -      +
     952  THR*     1.3    74.3    -      -       -      +
     972  LYS*     1.3    64.6    +      -       +      +
     992  HIS*     3.4     6.0    +      -       -      +
    1002  ALA*     3.1    24.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 97 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     932  GLU*     3.0    40.7    +      -       +      +
     942  LEU*     3.7    10.3    -      -       +      +
     962  ASN*     1.3    76.5    -      -       +      +
     982  LEU*     1.3    59.0    +      -       -      +
    1002  ALA*     3.3     6.0    +      -       -      +
    1012  PHE*     3.0    29.3    +      -       -      +
    1303  GLU*     3.6    42.2    -      -       +      +
    1313  LEU*     3.9    13.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 98 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     942  LEU*     2.9    19.3    +      -       +      +
     952  THR*     3.9     5.4    -      -       -      +
     972  LYS*     1.3    74.8    -      -       -      +
     992  HIS*     1.3    66.9    +      -       -      +
    1012  PHE*     3.5     9.1    +      -       +      -
    1022  SER*     2.9    22.9    +      -       -      -
     963  ASN*     6.2     1.6    -      -       -      +
    1033  MET*     4.0    29.6    -      -       +      -
    1113  PHE*     5.1     3.4    -      -       +      -
    1133  VAL*     4.7     1.6    -      -       +      -
    1313  LEU*     3.8    25.7    -      -       +      +
    2193  PHE*     3.6    46.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 99 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     951  THR*     5.7     1.7    +      -       +      +
     981  LEU*     3.9    31.6    -      -       +      +
     991  HIS*     3.7    30.0    +      +       -      -
    1021  SER*     2.6    37.9    +      -       -      -
    1031  MET*     5.5     1.1    -      -       +      -
     952  THR      2.9    18.6    +      -       -      +
     962  ASN*     3.8     7.8    +      -       -      +
     972  LYS      3.3     0.2    -      -       -      -
     982  LEU*     1.3    76.6    -      -       -      +
    1002  ALA*     1.3    63.7    +      -       -      +
    1022  SER*     2.7    25.0    +      -       -      -
    1032  MET*     3.0    25.4    +      -       +      +
    1112  PHE*     4.5     6.7    -      +       -      -
     993  HIS*     4.3    16.6    -      +       +      +
    1033  MET*     5.7     3.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 100 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     962  ASN      3.1    17.2    +      -       -      +
     972  LYS*     3.7     5.8    -      -       -      +
     982  LEU      3.3     0.2    -      -       -      -
     992  HIS*     1.3    76.9    +      -       -      +
    1012  PHE*     1.3    61.0    +      -       -      +
    1032  MET*     3.0    11.3    +      -       -      +
    1042  GLY      3.2     0.5    +      -       -      -
    1052  LYS*     2.9    52.0    +      -       +      +
    1112  PHE*     3.9    25.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 101 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     972  LYS      3.0    17.9    +      -       -      +
     982  LEU*     3.6     7.0    -      -       +      +
     992  HIS      3.3     0.2    -      -       -      -
    1002  ALA*     1.3    75.6    -      -       -      +
    1022  SER*     1.3    59.9    +      -       -      +
    1042  GLY      2.9    17.3    +      -       -      -
    1052  LYS*     4.3     6.5    -      -       -      +
    1133  VAL*     3.5    39.7    -      -       +      -
    1143  THR*     3.7     6.5    -      -       -      -
    1153  ASN*     3.1    65.3    -      -       +      +
    1273  LEU*     3.7    26.0    -      -       +      -
    1313  LEU*     3.7    25.4    -      -       +      -
    2153  ALA*     4.0     8.3    -      -       +      -
    2173  CYS*     3.9    17.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 102 (chain 2). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     982  LEU      2.9    15.5    +      -       -      -
     992  HIS*     2.7    26.7    +      -       -      -
    1012  PHE*     1.3    76.8    -      -       -      +
    1032  MET*     1.3    65.6    +      -       -      +
    1042  GLY      3.3     1.0    +      -       -      -
    1033  MET*     3.7    24.4    -      -       -      +
    1133  VAL*     3.6    28.2    -      -       -      +
    1143  THR      4.2     7.2    -      -       -      +
----------------------------------------------------------
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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