Contacts of the helix formed by residues 96 - 118 (chain U) in PDB entry 3MQT


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 GLY 96 (chain U).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     93Q  GLY      4.7     6.1    -      -       -      -
     95Q  ARG*     3.7    15.9    -      -       -      +
     95U  ARG*     1.3    72.0    -      -       -      +
     97U  LEU*     1.3    56.3    +      -       -      -
     98U  GLY      3.1     2.2    -      -       -      -
     99U  LEU*     2.7    35.2    +      -       -      +
    100U  PHE*     3.6    13.6    +      -       -      -
    262U  THR*     3.1    21.1    +      -       -      -
    285U  ARG*     6.2     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 97 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49Q  CYS*     5.5     0.4    -      -       -      -
     53Q  PHE*     4.2    20.9    -      -       +      -
     92Q  ILE*     4.0    20.6    +      -       +      +
     95Q  ARG      4.6     1.8    +      -       -      -
     97Q  LEU*     4.6    23.4    -      -       +      +
     98Q  GLY      5.3     0.4    -      -       -      +
     46U  PRO*     4.3    11.2    -      -       +      -
     49U  CYS*     4.2    18.8    -      -       -      -
     50U  MET*     3.4    34.0    -      -       +      +
     53U  PHE*     3.9    24.9    -      -       +      -
     95U  ARG      3.9     1.0    +      -       -      -
     96U  GLY*     1.3    71.3    -      -       -      -
     98U  GLY*     1.3    63.8    +      -       -      +
    100U  PHE*     3.0    34.2    +      -       +      +
    101U  ALA      3.6     3.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 98 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     97Q  LEU*     5.1     1.6    -      -       -      +
     53U  PHE*     3.8    28.0    -      -       -      -
     89U  THR*     5.6     0.8    +      -       -      -
     92U  ILE      4.4     4.6    +      -       -      -
     93U  GLY*     4.0    17.3    -      -       -      -
     95U  ARG      4.4     2.2    +      -       -      -
     96U  GLY      2.9     1.4    +      -       -      -
     97U  LEU*     1.3    79.4    -      -       -      +
     99U  LEU*     1.3    62.5    +      -       -      +
    101U  ALA*     3.5     7.4    +      -       -      +
    102U  ILE*     3.4    24.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 99 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     82U  TYR*     3.8    18.4    -      -       -      +
     86U  TYR*     4.3     7.9    -      -       +      -
     93U  GLY*     4.5     0.2    -      -       -      -
     94U  MET*     3.1    45.5    -      -       -      +
     95U  ARG*     3.4     9.6    -      -       -      +
     96U  GLY      2.7    15.3    +      -       -      +
     98U  GLY*     1.3    70.1    -      -       -      -
    100U  PHE*     1.3    53.0    +      -       -      -
    102U  ILE*     3.6    15.9    +      -       +      +
    103U  SER*     2.6    37.1    +      -       -      -
    262U  THR*     4.1     6.3    -      -       -      -
    263U  THR*     3.4    26.2    -      -       +      -
    285U  ARG      3.3    14.1    -      -       -      +
    286U  CYS      3.8    10.3    -      -       -      +
    287U  GLY*     3.9     4.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 100 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     91Q  TRP      3.7    10.1    -      -       -      -
     92Q  ILE*     4.2    12.3    -      -       +      -
     93Q  GLY      6.0     0.2    -      -       -      -
     43U  ALA*     3.2    11.3    -      -       -      +
     44U  ASP*     3.3    33.4    -      -       +      +
     45U  GLY*     3.9    11.7    -      -       -      -
     50U  MET*     3.7     2.5    -      -       +      -
     96U  GLY*     3.6    15.7    -      -       -      -
     97U  LEU*     3.0    34.3    +      -       +      +
     99U  LEU*     1.3    76.6    -      -       -      +
    101U  ALA*     1.3    61.7    -      -       -      +
    103U  SER*     3.2     4.0    +      -       -      -
    104U  GLY      3.1    18.4    +      -       -      -
    262U  THR*     4.1     4.5    -      -       +      -
    284U  ASN      3.6    11.4    -      -       -      +
    285U  ARG*     3.2    62.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 101 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     12U  PHE*     3.7    27.4    -      -       +      -
     43U  ALA*     4.3     0.9    -      -       -      -
     50U  MET*     3.8     7.4    -      -       +      +
     53U  PHE*     3.7    31.2    -      -       +      -
     66U  ILE*     3.8    10.3    -      -       +      -
     97U  LEU      3.6     1.8    +      -       -      -
     98U  GLY      3.5    11.6    +      -       -      +
    100U  PHE*     1.3    77.8    -      -       -      +
    102U  ILE*     1.3    62.1    +      -       -      +
    104U  GLY      3.4     1.6    +      -       -      -
    105U  ILE*     3.3    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 102 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66U  ILE*     3.5    22.9    -      -       +      -
     82U  TYR*     3.7    22.9    -      -       +      +
     85U  MET*     3.9    21.7    -      -       +      +
     86U  TYR*     4.0    33.0    -      -       +      +
     89U  THR*     4.2    10.5    -      -       -      +
     94U  MET      5.9     1.3    -      -       -      +
     98U  GLY      3.4    13.3    +      -       -      +
     99U  LEU*     3.8    22.9    -      -       +      +
    100U  PHE      3.4     0.4    -      -       -      -
    101U  ALA*     1.3    75.1    -      -       -      +
    103U  SER*     1.3    66.3    +      -       -      +
    105U  ILE*     3.2     2.4    +      -       -      +
    106U  ASP*     2.8    23.0    +      -       -      +
    287U  GLY*     3.7    16.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with SER 103 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     42U  GLU      4.6     1.1    -      -       -      -
     99U  LEU      2.6    21.6    +      -       -      -
    100U  PHE      3.2     8.3    +      -       -      -
    102U  ILE*     1.3    75.7    -      -       -      +
    104U  GLY*     1.3    58.5    +      -       -      +
    106U  ASP*     3.4     2.1    +      -       -      +
    107U  MET*     2.9    29.5    +      -       -      +
    283U  TYR      3.4    20.9    -      -       -      +
    284U  ASN*     3.4    12.1    -      -       -      -
    285U  ARG      3.1     7.6    -      -       -      -
    287U  GLY      2.8    32.2    +      -       -      -
    288U  GLY*     3.7     5.2    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 104 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29U  VAL*     3.8    14.7    -      -       -      +
     41U  GLY*     3.7     4.5    -      -       -      -
     42U  GLU      3.5    30.6    +      -       -      -
     43U  ALA*     4.0     0.9    -      -       -      -
    100U  PHE      3.1    11.6    +      -       -      -
    101U  ALA      3.4     1.8    +      -       -      -
    102U  ILE      3.2     0.4    -      -       -      -
    103U  SER*     1.3    77.3    -      -       -      +
    105U  ILE*     1.3    60.8    +      -       -      +
    107U  MET*     3.4     4.3    +      -       -      +
    108U  ALA*     3.1    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 105 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     10U  VAL*     4.0    11.7    -      -       +      -
     12U  PHE*     3.8    15.5    -      -       +      -
     29U  VAL*     3.7    22.9    -      -       +      +
     31U  VAL*     4.4     7.2    -      -       +      -
     66U  ILE*     3.7    35.4    -      -       +      -
     67U  LYS      5.3     0.2    -      -       -      +
     70U  VAL*     4.5    12.8    -      -       +      -
     85U  MET*     3.7    25.6    -      -       +      -
    101U  ALA      3.3    17.5    +      -       -      +
    102U  ILE      3.2     2.5    +      -       -      +
    104U  GLY*     1.3    73.8    -      -       -      +
    106U  ASP*     1.3    64.2    +      -       -      +
    108U  ALA*     3.1     4.9    +      -       -      +
    109U  LEU*     2.9    41.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 106 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78U  PHE*     4.7     3.6    -      -       -      +
     82U  TYR*     4.2     9.5    -      -       -      +
     85U  MET*     4.2     7.7    -      -       +      +
    102U  ILE*     2.8    22.1    +      -       +      +
    103U  SER      3.5     4.5    -      -       -      +
    105U  ILE*     1.3    73.3    -      -       -      +
    107U  MET*     1.3    61.8    +      -       -      +
    109U  LEU*     3.2    19.5    +      -       -      +
    110U  TYR*     3.0    27.5    +      -       -      -
    287U  GLY      3.8    12.3    -      -       -      +
    289U  VAL      2.9    14.7    +      -       -      -
    290U  THR*     2.5    50.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with MET 107 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40U  LEU      4.2     0.2    -      -       -      -
     41U  GLY*     3.6     9.0    -      -       -      -
     42U  GLU      3.6    30.5    -      -       -      +
    103U  SER      2.9    11.0    +      -       -      +
    104U  GLY      3.5     9.2    -      -       -      +
    105U  ILE      3.3     0.2    -      -       -      -
    106U  ASP*     1.3    76.2    +      -       -      +
    108U  ALA*     1.3    63.4    +      -       -      +
    110U  TYR*     3.1    19.9    +      -       -      +
    111U  ASP*     3.2    11.1    +      -       -      +
    283U  TYR*     4.0    34.1    -      -       +      +
    284U  ASN*     4.3     0.4    -      -       +      -
    289U  VAL*     4.9    11.0    -      -       +      +
    315U  ILE*     4.0    14.1    -      -       -      +
    316U  THR*     3.8    21.8    -      -       -      +
    319U  ALA*     4.0    21.1    -      -       +      -
    369U  LEU*     3.8    17.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 108 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29U  VAL*     3.9     4.7    -      -       +      +
     31U  VAL*     3.7    18.4    -      -       +      -
     39U  GLY*     3.5    18.2    -      -       -      +
     40U  LEU      3.6    12.3    -      -       -      +
     41U  GLY*     3.5    17.0    -      -       -      +
    104U  GLY      3.1     7.4    +      -       -      +
    105U  ILE*     3.1     9.7    +      -       -      +
    107U  MET*     1.3    79.0    -      -       -      +
    109U  LEU*     1.3    52.9    +      -       -      +
    111U  ASP      3.2     0.5    +      -       -      -
    112U  LEU*     2.7    36.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 109 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7U  ILE*     3.6    29.2    -      -       +      -
     31U  VAL*     4.0    19.7    -      -       +      -
     70U  VAL*     4.2     7.4    -      -       +      -
     75U  PRO*     4.0    18.0    -      -       +      +
     78U  PHE*     3.8    10.0    -      -       +      +
     81U  ASN*     4.1    30.7    -      -       +      +
     85U  MET*     4.2     7.9    -      -       +      -
    105U  ILE*     2.9    33.0    +      -       +      +
    106U  ASP*     3.6    12.8    -      -       -      +
    107U  MET      3.2     0.4    -      -       -      -
    108U  ALA*     1.3    75.6    -      -       -      +
    110U  TYR*     1.3    57.6    +      -       -      +
    112U  LEU*     3.8     3.0    -      -       +      +
    113U  ALA*     2.8    34.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 110 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     78U  PHE*     3.5    49.1    -      +       -      +
    106U  ASP*     3.0    33.5    +      -       -      -
    107U  MET*     3.1     9.0    +      -       -      +
    109U  LEU*     1.3    75.9    -      -       -      +
    111U  ASP*     1.3    63.5    +      -       -      +
    114U  GLY*     3.1    19.8    +      -       -      -
    121U  ALA*     4.1    17.0    -      -       +      +
    124U  LEU*     4.1    20.3    -      -       +      +
    125U  MET*     4.2    29.4    -      -       +      -
    289U  VAL*     3.6    21.5    -      -       +      -
    290U  THR*     2.7    37.7    +      -       -      +
    293U  LEU*     3.8     9.7    -      -       -      +
    368U  GLY*     4.1     3.5    -      -       -      -
    369U  LEU*     4.8     3.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 111 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38U  TYR      4.4     0.3    -      -       -      +
     39U  GLY*     3.3     4.4    -      -       -      -
     40U  LEU*     2.7    44.8    +      -       -      +
    107U  MET      3.2     2.2    +      -       -      +
    108U  ALA      3.2     9.1    +      -       -      +
    110U  TYR*     1.3    78.6    -      -       -      +
    112U  LEU*     1.3    63.6    +      -       -      +
    115U  LYS*     3.1    40.4    +      -       -      +
    368U  GLY*     3.5     2.1    -      -       -      -
    369U  LEU*     2.9    43.2    +      -       +      +
    370U  GLY      4.2     2.8    +      -       -      -
    371U  ILE*     4.2     7.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 112 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      7U  ILE*     4.3     6.5    -      -       +      -
     31U  VAL*     3.6    35.9    -      -       +      +
     33U  ASP*     4.1     9.9    -      -       +      +
     37U  VAL*     3.7    28.7    -      -       +      +
     38U  TYR*     3.9    11.4    -      -       -      +
     39U  GLY*     3.6     9.6    -      -       -      +
     75U  PRO*     3.9    26.2    -      -       +      -
    108U  ALA      2.7    20.5    +      -       -      +
    109U  LEU*     3.8     4.0    -      -       +      +
    111U  ASP*     1.3    71.2    -      -       -      +
    113U  ALA*     1.3    60.4    +      -       -      +
    115U  LYS*     3.0     4.4    +      -       -      -
    116U  GLN*     2.8    47.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 113 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     75U  PRO*     4.0    11.6    -      -       -      +
     76U  LEU*     4.1    14.1    -      -       +      +
     78U  PHE*     3.7    24.9    -      -       +      -
    109U  LEU      2.8    22.3    +      -       -      +
    110U  TYR      4.3     0.2    -      -       -      +
    112U  LEU*     1.3    72.8    -      -       -      +
    114U  GLY*     1.3    61.3    +      -       -      +
    116U  GLN*     3.4    12.1    +      -       -      +
    117U  LEU*     3.0    30.4    +      -       -      +
    124U  LEU*     3.8     8.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 114 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110U  TYR      3.1    12.9    +      -       -      -
    113U  ALA*     1.3    75.7    -      -       -      +
    115U  LYS*     1.3    53.1    +      -       -      +
    118U  GLY*     2.7    30.1    +      -       -      -
    119U  VAL*     2.8    31.5    +      -       -      -
    121U  ALA      5.1     0.4    -      -       -      -
    124U  LEU*     3.6    12.0    -      -       -      +
    367U  PRO*     3.7     0.5    -      -       -      +
    368U  GLY*     3.6    13.5    -      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 115 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37U  VAL*     4.0    22.1    -      -       +      +
     38U  TYR*     2.7    49.0    +      -       -      +
    111U  ASP*     3.1    34.2    +      -       -      +
    112U  LEU      3.0     5.2    +      -       -      +
    114U  GLY*     1.3    73.4    -      -       -      +
    116U  GLN*     1.3    66.3    +      -       -      +
    118U  GLY*     3.2     9.9    +      -       -      -
    367U  PRO*     4.0    26.5    -      -       +      +
    371U  ILE      5.9     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLN 116 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5U  ALA*     3.0    34.6    +      -       +      +
     33U  ASP*     3.2    34.7    +      -       -      +
     37U  VAL*     5.0     5.3    -      -       +      +
     74U  ASP*     4.3     4.5    -      -       -      +
     75U  PRO*     3.2    33.1    -      -       -      +
     76U  LEU*     5.1     1.0    +      -       -      +
    112U  LEU*     2.8    27.8    +      -       +      +
    113U  ALA*     3.8     6.9    -      -       -      +
    115U  LYS*     1.3    73.3    -      -       -      +
    117U  LEU*     1.3    64.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 117 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    117R  LEU*     4.0    43.9    -      -       +      +
    119R  VAL*     5.0     4.9    -      -       +      -
     76U  LEU*     3.9    30.7    -      -       +      -
    113U  ALA*     3.0    19.2    +      -       +      +
    116U  GLN*     1.3    80.6    -      -       +      +
    118U  GLY*     1.3    63.6    +      -       -      +
    119U  VAL*     3.7    19.5    +      -       +      +
    124U  LEU*     3.7    30.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 118 (chain U). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    114U  GLY      2.7    10.8    +      -       -      -
    115U  LYS      3.2    10.8    +      -       -      -
    116U  GLN      3.3     0.4    +      -       -      -
    117U  LEU*     1.3    78.5    -      -       -      +
    119U  VAL*     1.3    60.7    +      -       -      +
    120U  PRO*     4.8     0.7    -      -       -      +
    365U  ASP      5.5     0.9    -      -       -      +
    367U  PRO*     4.0    20.6    -      -       -      +
----------------------------------------------------------
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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