Contacts of the strand formed by residues 821 - 827 (chain N) in PDB entry 3HOU


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 GLN 821 (chain N).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    796N  LEU*     3.3    29.4    -      -       +      +
    798N  TYR*     3.4    26.1    +      -       -      +
    800N  GLN*     3.9    15.0    -      -       +      +
    820N  GLY*     1.3    77.5    -      -       -      +
    822N  ASN*     1.3    64.4    +      -       -      +
    823N  ALA*     3.4     2.1    +      -       -      -
    849N  GLY      5.4     0.2    +      -       -      -
    850N  LEU*     2.8    32.7    -      -       +      +
    851N  PHE*     3.1    40.7    +      -       +      +
    852N  ARG      4.8     0.4    +      -       -      +
   1091N  TYR*     3.6     8.0    -      -       -      -
   1092N  TYR*     2.9    32.9    +      -       -      +
      8V  PHE*     3.4    11.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 822 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    800N  GLN*     2.8    28.0    +      -       -      +
    801N  LYS      2.7    28.9    +      -       -      -
    803N  LEU*     3.0    44.5    +      -       +      +
    821N  GLN*     1.3    69.6    -      -       -      +
    823N  ALA*     1.3    60.7    +      -       -      +
    850N  LEU*     6.0     0.3    -      -       -      +
   1028N  GLU*     5.4     0.2    -      -       -      +
   1032N  SER*     5.0     0.3    +      -       -      -
   1089N  PRO*     4.7     4.5    -      -       +      -
   1090N  THR      3.9     6.2    -      -       -      -
   1091N  TYR*     3.5    19.6    +      -       -      +
      8V  PHE*     5.8     1.4    -      -       -      -
     48V  ARG*     3.1    34.6    +      -       -      -
     52V  THR*     3.2    11.5    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 823 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    821N  GLN      3.4     5.0    +      -       -      +
    822N  ASN*     1.3    74.7    -      -       -      +
    824N  ILE*     1.3    67.3    +      -       -      +
    825N  VAL*     3.0     9.6    +      -       +      +
    850N  LEU*     4.9     4.9    -      -       +      -
    851N  PHE*     4.7    11.4    -      -       +      -
   1009N  ASP*     3.6    11.4    -      -       +      +
   1010N  LEU*     3.5    31.9    -      -       +      -
   1089N  PRO*     4.1     0.2    -      -       -      -
   1090N  THR      3.1    29.1    +      -       -      +
   1092N  TYR*     4.9     3.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 824 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    823N  ALA*     1.3    68.6    -      -       -      +
    825N  VAL*     1.3    58.2    +      -       -      +
   1006N  ILE*     5.1     2.5    -      -       +      -
   1007N  VAL      3.8    11.9    -      -       -      +
   1008N  PRO*     3.5     1.9    -      -       -      +
   1009N  ASP*     2.6    39.0    +      -       -      +
   1010N  LEU      3.3     4.5    +      -       -      -
   1087N  PHE*     3.6    38.8    -      -       +      -
   1088N  GLY      4.0     6.5    -      -       -      +
   1089N  PRO*     3.8    25.1    -      -       +      -
      9V  SER*     3.6     9.9    -      -       -      +
     44V  TYR*     4.0    22.0    -      -       +      -
     45V  CYS*     4.3     9.2    -      -       +      -
     48V  ARG*     2.8    35.9    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 825 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    823N  ALA*     3.0    17.7    +      -       +      +
    824N  ILE*     1.3    73.5    -      -       -      +
    826N  ALA*     1.3    75.5    +      -       -      +
    827N  ILE*     4.5     4.3    -      -       +      +
   1010N  LEU*     3.8    13.9    -      -       +      +
   1012N  ILE*     4.1    28.3    -      -       +      -
   1025N  HIS*     5.3     2.0    -      -       +      -
   1029N  CYS*     5.2     1.8    -      -       -      -
   1086N  PHE*     3.9     1.7    -      -       -      +
   1087N  PHE*     3.5     7.1    -      -       -      -
   1088N  GLY      3.0    32.8    +      -       -      +
   1090N  THR*     4.0    13.2    -      -       -      +
   1092N  TYR*     3.6    31.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 826 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    825N  VAL*     1.3    79.1    -      -       -      +
    827N  ILE*     1.3    62.9    +      -       -      +
    828N  ALA*     3.7     2.9    -      -       +      +
   1000N  PRO*     5.6     2.5    -      -       +      -
   1008N  PRO*     3.7    15.5    -      -       +      +
   1010N  LEU      3.1     7.6    +      -       -      +
   1011N  ILE*     3.2    10.7    -      -       +      -
   1012N  ILE      2.8    24.4    +      -       -      +
   1072N  MET*     4.2    11.9    -      -       +      -
   1085N  ILE*     4.3     2.2    -      -       +      -
   1086N  PHE      3.6     5.4    -      -       -      -
   1087N  PHE*     3.5    23.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ILE 827 (chain N). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    663M  SER*     2.4    35.3    +      -       -      +
    664M  THR*     3.7    21.1    -      -       +      +
    825N  VAL*     4.5     4.9    -      -       +      +
    826N  ALA*     1.3    74.1    -      -       -      +
    828N  ALA*     1.3    57.2    +      -       -      +
   1012N  ILE*     3.1    32.8    -      -       +      +
   1013N  ASN      4.1     1.6    -      -       -      +
   1014N  PRO*     3.4    33.2    -      -       +      -
   1017N  ILE*     4.8     7.2    -      -       +      -
   1025N  HIS*     4.6     7.9    -      -       +      +
   1026N  LEU*     4.0    16.2    -      -       +      -
   1085N  ILE*     3.4     1.4    -      -       -      +
   1086N  PHE*     3.2    38.5    +      -       +      +
----------------------------------------------------------
 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