Contacts of the helix formed by residues 120 - 135 (chain R) in PDB entry 1HI0


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with SER 120 (chain R).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118R  PRO*     4.2     3.1    -      -       -      +
    119R  VAL*     1.3    84.2    -      -       -      +
    121R  GLU*     1.3    65.2    +      -       -      +
    122R  ARG*     3.1    15.7    +      -       -      +
    123R  ASP*     3.1    29.3    +      -       -      +
    124R  ASN*     3.1    18.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 121 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120R  SER*     1.3    73.6    -      -       -      +
    122R  ARG*     1.3    63.5    +      -       -      +
    124R  ASN*     3.2    28.4    +      -       -      +
    125R  LEU*     2.9    43.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 122 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    120R  SER*     3.1    12.3    +      -       -      +
    121R  GLU*     1.3    78.2    -      -       -      +
    123R  ASP*     1.3    85.4    +      -       -      +
    125R  LEU*     2.9    14.8    +      -       -      +
    126R  LEU*     2.8    32.1    +      -       +      +
    412R  VAL*     3.7     6.4    -      -       -      +
    415R  LEU*     3.5    31.5    -      -       -      +
    416R  ASP*     2.6    36.5    +      -       -      +
    423R  ASN*     2.5    47.5    +      -       -      +
    426R  ILE*     4.1    24.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 123 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118R  PRO*     4.3     2.2    -      -       +      -
    119R  VAL*     4.2     5.5    -      -       -      +
    120R  SER*     3.1    18.8    +      -       -      +
    122R  ARG*     1.3   105.0    +      -       -      +
    124R  ASN*     1.3    64.5    +      -       -      +
    126R  LEU*     3.2     8.3    +      -       -      +
    127R  PHE*     3.0    33.7    +      -       +      -
    412R  VAL*     3.5    21.9    -      -       +      +
    416R  ASP*     5.2     0.3    -      -       -      +
    484R  PRO*     5.0     1.0    -      -       -      +
    485R  TYR*     2.5    41.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 124 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118R  PRO*     3.7    24.0    -      -       +      +
    120R  SER      3.1     9.3    +      -       -      +
    121R  GLU*     3.2    36.6    +      -       -      +
    123R  ASP*     1.3    76.8    -      -       -      +
    125R  LEU*     1.3    65.5    +      -       -      +
    127R  PHE*     3.5     2.4    +      -       -      +
    128R  ARG*     2.8    57.3    +      -       -      +
    339R  LEU*     3.9     9.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 125 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121R  GLU*     2.9    39.3    +      -       +      +
    122R  ARG*     2.9    10.4    +      -       -      +
    124R  ASN*     1.3    79.4    -      -       -      +
    126R  LEU*     1.3    51.8    +      -       -      +
    128R  ARG*     3.2     4.4    +      -       -      +
    129R  ALA*     2.6    37.4    +      -       -      +
    426R  ILE*     4.4    13.5    -      -       +      +
    427R  LYS      3.9     7.4    -      -       -      +
    428R  ASP*     3.8    28.0    -      -       -      +
    429R  MET*     3.5    40.1    -      -       +      +
    432R  ALA*     4.2    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 126 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    122R  ARG*     2.8    36.8    +      -       +      +
    123R  ASP      3.6     6.3    -      -       -      +
    125R  LEU*     1.3    74.1    -      -       -      +
    127R  PHE*     1.3    52.7    +      -       -      +
    129R  ALA*     3.0     5.8    +      -       -      +
    130R  ALA*     2.7    34.3    +      -       -      +
    408R  ILE*     3.8    18.9    -      -       +      +
    411R  LEU*     3.9    21.8    -      -       +      -
    412R  VAL*     4.1    17.7    -      -       +      -
    415R  LEU*     3.9    20.9    -      -       +      -
    426R  ILE*     4.2    24.7    -      -       +      -
    432R  ALA*     5.0     4.7    -      -       +      +
    435R  PHE*     4.4     7.6    -      -       +      -
    436R  LEU*     4.8    13.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 127 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    118R  PRO*     4.3    13.2    -      -       +      -
    123R  ASP*     3.0    31.2    +      -       +      +
    124R  ASN      3.9     3.1    -      -       -      +
    126R  LEU*     1.3    75.0    -      -       -      +
    128R  ARG*     1.3    57.4    +      -       -      +
    130R  ALA*     3.1     6.1    +      -       -      +
    131R  VAL*     3.0    29.1    +      -       -      +
    335R  TRP*     3.7    26.9    -      +       -      -
    336R  LEU*     4.0    19.5    -      -       +      -
    339R  LEU*     3.9    17.0    -      -       +      -
    404R  LEU*     4.4     7.9    -      -       +      +
    405R  LEU*     4.0    22.0    -      -       +      -
    408R  ILE*     3.5    37.7    -      -       +      -
    409R  THR*     4.5     3.4    -      -       -      -
    485R  TYR*     4.1    34.1    -      +       -      -
----------------------------------------------------------
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Residues in contact with ARG 128 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124R  ASN*     2.8    46.6    +      -       -      +
    125R  LEU*     3.6     6.1    -      -       -      +
    127R  PHE*     1.3    77.0    -      -       -      +
    129R  ALA*     1.3    64.5    -      -       -      +
    131R  VAL*     3.4     1.2    +      -       -      +
    132R  ARG*     3.1    27.0    +      -       -      +
    339R  LEU*     3.5    32.3    -      -       +      +
    342R  ASP*     2.9    34.9    +      -       -      +
    343R  GLU*     2.6    52.2    +      -       -      +
    346R  ASN*     3.7     3.8    -      -       -      +
    429R  MET*     3.8    12.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 129 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    125R  LEU      2.6    20.6    +      -       -      +
    126R  LEU*     3.3    10.1    -      -       +      +
    128R  ARG*     1.3    69.8    -      -       -      +
    130R  ALA*     1.3    67.6    +      -       -      +
    132R  ARG*     2.9     3.5    +      -       -      +
    133R  LEU*     2.8    26.7    +      -       -      +
    429R  MET*     3.9     8.7    -      -       +      +
    432R  ALA*     4.1     7.0    -      -       +      -
    433R  CYS*     4.0    31.6    -      -       -      +
    436R  LEU*     3.7    14.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 130 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    126R  LEU      2.7    12.0    +      -       -      +
    127R  PHE      3.2     9.9    -      -       -      +
    129R  ALA*     1.3    77.0    -      -       -      +
    131R  VAL*     1.3    61.7    +      -       -      +
    133R  LEU      3.5     0.2    +      -       -      -
    134R  MET*     3.0    29.5    +      -       -      +
    404R  LEU*     3.5    20.9    -      -       +      -
    408R  ILE*     3.7    25.6    -      -       +      -
    436R  LEU*     3.3    10.3    -      -       -      +
    440R  TRP*     3.8    11.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with VAL 131 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    127R  PHE      3.0    18.6    +      -       -      +
    128R  ARG*     3.6     8.7    -      -       -      +
    129R  ALA      3.1     0.2    -      -       -      -
    130R  ALA*     1.3    76.7    -      -       -      +
    132R  ARG*     1.3    62.5    +      -       -      +
    135R  PHE*     2.9    32.2    +      -       +      +
    339R  LEU*     4.7     1.1    -      -       +      -
    340R  ILE*     3.8    38.1    -      -       +      +
    343R  GLU*     3.9    16.4    -      -       +      -
    344R  LEU*     3.9    25.1    -      -       +      -
    347R  MET*     3.8    16.6    -      -       -      +
    404R  LEU*     4.2    11.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 132 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    128R  ARG      3.1    12.6    +      -       -      +
    129R  ALA      2.9     7.1    +      -       -      +
    131R  VAL*     1.3    76.8    -      -       -      +
    133R  LEU*     1.3    60.5    +      -       +      +
    136R  SER*     2.8    30.5    +      -       -      -
    343R  GLU*     2.2    36.1    +      -       +      +
    346R  ASN*     4.0     8.5    +      -       -      +
    347R  MET*     3.3    55.4    -      -       +      +
    429R  MET*     3.2    29.3    -      -       -      +
    433R  CYS*     4.2    15.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 133 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    129R  ALA      2.8    19.9    +      -       -      +
    132R  ARG*     1.3    74.5    -      -       +      +
    134R  MET*     1.3    56.6    +      -       -      +
    136R  SER*     3.1    14.7    +      -       -      +
    293R  LYS*     3.1    20.1    -      -       -      +
    297R  LYS*     5.5     2.2    -      -       -      +
    298R  TYR*     3.4    24.1    -      -       +      +
    433R  CYS*     3.9    23.6    -      -       +      +
    436R  LEU*     3.7    21.5    -      -       +      -
    437R  ASP*     3.4    39.5    -      -       +      +
    440R  TRP*     3.7    20.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 134 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    130R  ALA      3.0    17.7    +      -       -      +
    131R  VAL      3.3     0.2    +      -       -      -
    133R  LEU*     1.3    78.8    -      -       -      +
    135R  PHE*     1.3    76.0    +      -       +      +
    136R  SER      3.5     2.3    +      -       -      -
    138R  LEU*     3.6    16.3    -      -       -      +
    290R  VAL*     3.7    18.8    -      -       +      +
    293R  LYS*     4.1     4.7    -      -       -      +
    294R  ILE*     3.9    42.4    -      -       +      -
    302R  PHE*     4.5     3.8    -      -       +      -
    400R  LEU*     4.8     9.4    -      -       +      +
    403R  THR*     4.2    21.1    -      -       +      -
    404R  LEU*     3.2    37.7    -      -       +      +
    440R  TRP*     3.9    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with PHE 135 (chain R). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    131R  VAL*     2.9    32.6    +      -       +      +
    134R  MET*     1.3    94.9    -      -       +      +
    136R  SER*     1.3    61.3    +      -       -      +
    138R  LEU*     3.9     6.9    -      -       -      +
    286R  VAL*     4.5    10.3    -      -       +      -
    287R  ALA*     6.2     0.7    -      -       -      -
    290R  VAL*     3.8    26.5    -      -       +      -
    340R  ILE*     5.1     5.6    -      -       +      -
    344R  LEU*     3.6    38.1    -      -       +      -
    347R  MET*     3.6     7.4    -      -       +      +
    349R  TYR*     2.6    46.2    +      +       +      +
    353R  TRP*     4.7     7.2    -      +       -      -
    357R  PHE*     5.2     6.5    -      +       -      -
    397R  ALA*     6.4     0.7    -      -       +      -
    400R  LEU*     5.3     5.4    -      -       +      -
    401R  MET*     4.6    21.8    -      -       +      -
    404R  LEU*     5.1     2.9    -      -       +      -
    663R  PRO*     5.3     0.2    -      -       -      +
----------------------------------------------------------
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A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


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

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

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