Contacts of the helix formed by residues 67 - 78 (chain H) in PDB entry 1U3H


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

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

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with TYR 67 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     96F  ASP*     3.2    18.9    +      -       -      -
    104F  TYR*     3.6    27.4    -      +       -      -
     47H  TYR*     3.9    11.2    -      -       +      -
     60H  TYR*     3.9    12.8    -      +       -      -
     61H  TYR*     2.9    49.7    +      +       -      +
     63H  LYS      5.0     0.2    -      -       -      -
     64H  GLN*     1.3    99.7    -      -       +      +
     68H  LEU*     1.3    65.8    +      -       -      +
     69H  GLU      3.2     2.5    -      -       -      -
     70H  ARG*     2.8    20.1    +      -       -      -
     71H  THR*     3.0    11.8    +      -       -      -
      5I  ARG*     3.6    39.9    -      -       +      +
      6I  PRO*     3.2    34.9    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 68 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40H  PHE*     4.1     6.7    -      -       +      -
     45H  GLY      3.6     9.0    -      -       -      +
     46H  GLU*     4.0    15.0    -      -       +      +
     47H  TYR*     4.4     6.0    -      -       +      +
     61H  TYR      3.2     7.4    +      -       -      -
     62H  ASN*     3.1    49.0    +      -       +      +
     63H  LYS      4.6     1.1    +      -       -      +
     64H  GLN      4.0     0.2    -      -       -      -
     67H  TYR*     1.3    76.3    -      -       -      +
     69H  GLU*     1.3    63.3    +      -       -      +
     71H  THR*     3.6     0.5    +      -       -      -
     72H  ARG*     3.0    73.8    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 69 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     50E  LEU*     4.0    21.9    -      -       +      +
     56E  LYS*     5.2     8.9    +      -       -      -
     63H  LYS      5.6     0.8    +      -       -      -
     67H  TYR      2.9     2.8    +      -       -      -
     68H  LEU*     1.3    77.4    -      -       -      +
     70H  ARG*     1.3    65.8    +      -       +      +
     72H  ARG*     3.9     9.8    +      -       -      +
     73H  ALA*     3.5    18.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 70 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     31E  TYR*     3.7    28.9    +      -       -      -
     48E  SER*     5.3     1.4    +      -       -      -
     50E  LEU*     4.6    19.0    -      -       +      +
    100F  GLY*     3.0    30.3    +      -       -      -
    104F  TYR*     3.4    28.5    -      -       -      +
    105F  GLU*     4.6     2.4    -      -       -      +
     64H  GLN      3.8    16.6    +      -       -      +
     67H  TYR*     2.8    14.9    +      -       -      +
     69H  GLU*     1.3    73.1    -      -       +      +
     71H  THR*     1.3    65.2    +      -       -      +
     73H  ALA*     3.0    16.9    +      -       -      +
     74H  GLU*     3.2    14.4    +      -       -      +
      5I  ARG*     3.6    26.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 71 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     26H  TYR*     3.3    25.0    -      -       +      +
     28H  THR*     4.7     4.3    -      -       -      +
     40H  PHE*     3.5    37.9    -      -       +      -
     47H  TYR*     2.6    35.1    +      -       -      +
     67H  TYR      3.0     9.5    +      -       -      -
     68H  LEU      4.2     2.7    -      -       -      -
     70H  ARG*     1.3    76.0    -      -       -      +
     72H  ARG*     1.3    64.1    +      -       -      +
     74H  GLU*     3.2    22.5    +      -       -      +
      5I  ARG*     3.6    12.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ARG 72 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40H  PHE*     4.0    19.1    -      -       +      -
     45H  GLY*     2.7    35.1    +      -       -      -
     46H  GLU*     4.7     0.8    +      -       -      +
     68H  LEU*     3.0    53.6    +      -       +      +
     69H  GLU*     4.0    10.3    -      -       -      +
     71H  THR*     1.3    78.0    -      -       -      +
     73H  ALA*     1.3    63.6    +      -       -      +
     75H  LEU*     3.2    23.2    +      -       -      +
     76H  ASP*     5.2     1.4    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 73 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30E  ASP*     6.0     0.4    -      -       -      +
     50E  LEU*     4.2    16.2    -      -       +      -
     52E  VAL*     3.7    25.8    -      -       +      -
     69H  GLU      3.5    11.1    +      -       -      +
     70H  ARG*     3.0    11.7    +      -       -      +
     72H  ARG*     1.3    76.5    -      -       -      +
     74H  GLU*     1.3    54.3    +      -       +      +
     75H  LEU      3.0     2.7    -      -       -      -
     76H  ASP*     2.6    32.6    +      -       -      +
     77H  THR*     3.0    17.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 74 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99E  ASN      5.4     0.2    -      -       -      +
     26H  TYR*     2.7    34.3    +      -       +      +
     70H  ARG      3.2    10.1    +      -       -      +
     71H  THR*     3.2    19.7    +      -       -      +
     73H  ALA*     1.3    77.4    -      -       -      +
     75H  LEU*     1.3    59.6    +      -       -      +
     76H  ASP      2.8     0.2    -      -       -      -
     77H  THR*     3.4    13.0    +      -       -      +
     78H  VAL*     2.7    38.4    +      -       +      +
     79H  CYS*     3.0     7.5    +      -       -      -
      1I  ALA      3.6     2.6    -      -       -      +
      2I  SER*     3.3     5.5    -      -       -      -
      3I  GLN*     2.8    42.1    +      -       -      +
      5I  ARG*     3.8    13.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 75 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     24H  ILE*     3.6    40.1    -      -       +      +
     26H  TYR*     3.8    15.8    -      -       +      -
     42H  SER*     3.5    31.4    -      -       -      -
     71H  THR      3.9     2.0    +      -       -      -
     72H  ARG      3.2    16.6    +      -       -      +
     73H  ALA      2.9     1.0    +      -       -      -
     74H  GLU*     1.3    77.7    -      -       -      +
     76H  ASP*     1.3    73.2    +      -       -      +
     79H  CYS*     3.2    14.3    -      -       -      +
     80H  ARG*     3.1    28.4    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 76 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     52E  VAL*     4.8    16.7    -      -       +      +
     72H  ARG      5.2     1.4    -      -       -      +
     73H  ALA*     2.6     9.8    +      -       -      +
     75H  LEU*     1.3    89.6    -      -       -      +
     77H  THR*     1.3    63.6    +      -       +      +
     78H  VAL      3.2     1.3    -      -       -      -
     80H  ARG*     2.6    44.4    +      -       +      +
     81H  TYR*     3.1    28.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 77 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     30E  ASP*     3.7    29.9    +      -       +      +
     50E  LEU*     6.2     1.1    -      -       +      -
     51E  SER*     3.8    22.2    -      -       -      +
     52E  VAL*     4.1    16.6    -      -       +      -
     99E  ASN*     3.3    28.1    +      -       -      +
     73H  ALA*     3.0    15.3    +      -       +      +
     74H  GLU*     3.4    17.2    +      -       -      +
     76H  ASP*     1.3    75.7    -      -       +      +
     78H  VAL*     1.3    63.5    +      -       -      +
     81H  TYR*     3.3    11.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 78 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     99E  ASN*     4.5     6.7    -      -       +      +
      9G  TYR*     3.9     9.9    -      -       +      -
     15H  CYS*     4.7     1.6    -      -       -      -
     74H  GLU*     2.7    38.7    +      -       +      +
     76H  ASP      3.2     0.2    -      -       -      -
     77H  THR*     1.3    84.1    -      -       -      +
     79H  CYS*     1.3    59.5    +      -       -      +
     80H  ARG      3.7     0.2    -      -       -      -
     82H  ASN*     2.7    58.4    +      -       -      +
      0I  GLY*     4.0     4.5    -      -       -      +
      1I  ALA      3.8    24.0    -      -       -      +
      2I  SER*     3.9    25.4    -      -       -      +
----------------------------------------------------------
 Back to top of page


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