Contacts of the helix formed by residues 66 - 81 (chain E) in PDB entry 5IC4


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 66 (chain E).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53E  LYS*     4.8     4.4    -      -       -      +
     64E  ARG      3.4     0.2    +      -       -      -
     65E  SER*     1.3    73.1    -      -       -      +
     67E  THR*     1.3    64.3    +      -       -      +
     68E  ASP*     3.2     4.4    -      -       -      +
     69E  VAL*     3.3    23.5    +      -       -      +
     70E  ASP      3.4     1.9    +      -       -      -
    207F  ARG*     4.6     1.3    -      -       -      -
    208F  ASN      4.0     4.9    -      -       -      -
    209F  SER      3.3    19.3    +      -       -      -
    212F  GLY*     3.3    24.0    -      -       -      -
----------------------------------------------------------
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Residues in contact with THR 67 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51E  ASN*     2.5    33.5    +      -       -      +
     53E  LYS*     3.5    28.0    -      -       +      -
     64E  ARG*     2.8    51.8    +      -       -      +
     65E  SER      3.4     0.6    +      -       -      -
     66E  GLY*     1.3    77.2    -      -       -      +
     68E  ASP*     1.3    63.2    +      -       -      +
     69E  VAL      3.3     0.2    -      -       -      -
     70E  ASP*     3.2    12.1    +      -       -      +
     71E  ALA*     2.9    23.2    +      -       -      +
    119E  LEU*     3.8     6.6    -      -       -      +
    207F  ARG*     4.3     2.4    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 68 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51E  ASN*     2.9    24.4    +      -       -      +
     53E  LYS*     3.0    37.5    +      -       -      +
     66E  GLY*     3.2     1.9    -      -       -      +
     67E  THR*     1.3    77.8    -      -       -      +
     69E  VAL*     1.3    65.1    +      -       +      +
     71E  ALA*     3.4     2.9    +      -       -      +
     72E  ALA*     3.0    26.5    +      -       -      +
     89E  ASN*     4.8     2.1    -      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 69 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     66E  GLY*     3.4    17.7    -      -       -      +
     68E  ASP*     1.3    80.0    -      -       +      +
     70E  ASP*     1.3    56.0    +      -       -      +
     72E  ALA*     3.9     4.3    -      -       -      +
     73E  ASN*     3.0    32.2    +      -       +      +
    210F  LYS      3.5    20.2    -      -       -      +
    211F  ASP*     3.4    23.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 70 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     64E  ARG*     4.9     1.9    +      -       -      -
     66E  GLY      3.4     4.2    +      -       -      +
     67E  THR*     3.2    16.1    +      -       -      +
     68E  ASP      3.2     0.4    -      -       -      -
     69E  VAL*     1.3    78.0    -      -       -      +
     71E  ALA*     1.3    53.9    +      -       -      +
     73E  ASN*     3.0     5.3    +      -       -      +
     74E  LEU*     2.8    40.6    +      -       -      +
    119E  LEU*     4.3    14.4    -      -       +      +
    161E  GLN*     4.9     0.9    -      -       -      +
    207F  ARG*     5.0     0.7    -      -       -      +
    211F  ASP      4.2     2.8    -      -       -      +
    212F  GLY*     3.3     9.0    -      -       -      -
    213F  SER*     2.7    51.8    +      -       -      +
    216F  ILE*     3.7    24.3    -      -       +      +
    217F  GLN*     4.4     2.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 71 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49E  ILE*     4.4     1.3    -      -       +      -
     51E  ASN*     3.9    27.6    -      -       +      +
     67E  THR      2.9    15.8    +      -       -      +
     68E  ASP*     3.4     5.1    +      -       -      +
     70E  ASP*     1.3    76.4    -      -       -      +
     72E  ALA*     1.3    56.8    +      -       -      +
     74E  LEU*     3.8     5.1    -      -       -      +
     75E  ARG*     3.0    28.4    +      -       -      +
     87E  ASN*     3.7    22.1    +      -       -      +
     89E  ASN*     5.5     1.1    -      -       -      +
    119E  LEU*     4.1    10.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 72 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     68E  ASP      3.0    16.9    +      -       -      +
     69E  VAL*     3.9     4.9    -      -       -      +
     71E  ALA*     1.3    75.5    -      -       -      +
     73E  ASN*     1.3    65.5    +      -       -      +
     75E  ARG*     3.4     8.3    +      -       -      +
     76E  GLU*     3.1    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 73 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69E  VAL*     3.0    23.1    +      -       +      +
     70E  ASP*     3.5     6.6    +      -       -      +
     72E  ALA*     1.3    75.6    -      -       -      +
     74E  LEU*     1.3    55.8    +      -       -      +
     76E  GLU*     3.5     5.7    +      -       -      +
     77E  THR*     2.8    38.5    +      -       -      -
    216F  ILE*     4.5     4.2    +      -       -      +
    217F  GLN*     4.5    12.9    +      -       -      +
    220F  CYS*     3.4    31.9    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 74 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     49E  ILE*     3.8    17.5    -      -       +      -
     70E  ASP      2.8    23.9    +      -       -      +
     71E  ALA*     3.8     2.9    -      -       -      +
     73E  ASN*     1.3    71.0    -      -       -      +
     75E  ARG*     1.3    63.7    +      -       -      +
     77E  THR*     3.3     1.1    +      -       -      -
     78E  PHE*     3.0    51.3    +      -       +      +
    117E  VAL*     3.6    31.0    -      -       +      -
    119E  LEU*     3.6    21.8    -      -       +      -
    216F  ILE*     3.6    34.8    -      -       +      -
    219F  LEU*     4.6     8.3    -      -       +      -
    220F  CYS*     3.9    11.7    -      -       -      -
    223F  LEU*     6.4     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 75 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    248B  GLU*     5.6     4.0    +      -       -      +
    249B  SER      5.1     1.8    +      -       -      -
    250B  PHE*     3.4    34.6    -      -       +      +
    257B  HIS*     4.3    21.0    +      -       -      +
     49E  ILE*     3.8     8.0    -      -       +      +
     71E  ALA      3.0    18.4    +      -       -      +
     72E  ALA*     3.7     8.7    -      -       -      +
     73E  ASN      3.4     0.2    -      -       -      -
     74E  LEU*     1.3    76.3    -      -       -      +
     76E  GLU*     1.3    58.6    +      -       -      +
     79E  ARG*     3.0    30.0    +      -       -      +
     85E  VAL*     3.8    28.2    +      -       +      +
     86E  ARG*     4.7     0.2    -      -       -      +
     87E  ASN*     2.8    50.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 76 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    257B  HIS*     4.1    11.4    +      -       -      -
     72E  ALA      3.1    14.5    +      -       -      +
     73E  ASN*     4.0     6.7    -      -       -      +
     74E  LEU      3.2     0.2    -      -       -      -
     75E  ARG*     1.3    76.9    -      -       -      +
     77E  THR*     1.3    66.9    +      -       -      +
     79E  ARG*     2.6    45.9    +      -       -      +
     80E  ASN*     3.0    24.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 77 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     73E  ASN*     2.8    24.3    +      -       -      -
     74E  LEU*     3.6     4.9    -      -       -      -
     76E  GLU*     1.3    77.3    -      -       -      +
     78E  PHE*     1.3    64.2    +      -       +      +
     80E  ASN*     3.3    16.0    +      -       -      +
     81E  LEU*     3.3    18.0    +      -       +      +
    220F  CYS*     3.4    26.9    +      -       -      +
    223F  LEU*     3.7    42.2    -      -       +      -
    224F  LYS*     4.7     6.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 78 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     47E  CYS*     3.6    31.0    -      -       -      -
     74E  LEU*     3.0    46.0    +      -       +      +
     77E  THR*     1.3    77.3    -      -       +      +
     79E  ARG*     1.3    61.7    +      -       -      +
     80E  ASN      3.2     0.7    -      -       -      -
     81E  LEU*     3.4    22.3    +      -       +      +
     83E  TYR*     2.9    50.0    +      +       +      +
     85E  VAL*     3.9     8.5    -      -       +      -
    115E  VAL*     3.9    30.3    -      -       +      -
    117E  VAL*     4.5     1.6    -      -       +      -
    157E  LEU*     5.9     1.6    -      -       +      -
    159E  ILE*     3.9    19.3    -      -       +      -
    219F  LEU*     5.3     0.2    -      -       +      -
    220F  CYS*     6.2     0.2    -      -       -      -
    223F  LEU*     4.0    20.9    -      -       +      -
    232F  PHE*     6.1     2.0    -      +       -      -
    275F  PHE*     5.2     6.3    -      +       -      -
----------------------------------------------------------
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Residues in contact with ARG 79 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    250B  PHE*     3.9    19.5    -      -       +      -
    251B  SER      2.8    39.7    +      -       -      +
    252B  PHE*     2.9    34.7    +      -       +      -
    254B  ALA*     3.6    30.3    -      -       -      +
    257B  HIS*     3.5    31.7    -      -       -      +
     75E  ARG*     3.0    22.1    +      -       +      +
     76E  GLU*     2.6    37.0    +      -       -      +
     78E  PHE*     1.3    78.5    -      -       -      +
     80E  ASN*     1.3    71.9    +      -       -      +
     82E  LYS*     3.0    19.6    +      -       -      +
     83E  TYR      4.3     4.3    -      -       -      -
     85E  VAL*     3.8     5.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 80 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252B  PHE      5.5     4.1    +      -       -      -
     76E  GLU*     3.0    18.3    +      -       +      +
     77E  THR*     3.5     7.9    -      -       -      +
     78E  PHE      3.2     0.4    -      -       -      -
     79E  ARG*     1.3    94.6    -      -       -      +
     81E  LEU*     1.3    62.7    +      -       -      +
     82E  LYS*     3.2    27.3    +      -       -      +
    224F  LYS*     6.1     0.7    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 81 (chain E). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     44E  MET*     3.4    22.3    -      -       -      +
     77E  THR*     3.3    16.5    +      -       +      +
     78E  PHE*     3.8    25.6    -      -       +      +
     79E  ARG      3.1     1.2    -      -       -      -
     80E  ASN*     1.3    82.5    -      -       +      +
     82E  LYS*     1.3    71.8    +      -       -      +
     83E  TYR*     3.4    16.5    +      -       +      -
    223F  LEU*     4.5    15.7    -      -       +      +
    227F  ALA*     3.7    25.4    -      -       +      -
    275F  PHE*     4.0    41.3    -      -       +      +
----------------------------------------------------------
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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