Contacts of the strand formed by residues 326 - 331 (chain H) in PDB entry 2HOD


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 326 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310H  LEU*     3.5    35.9    +      -       +      -
    312H  ILE*     5.3     0.4    -      -       +      -
    324H  ALA*     4.8     6.7    -      -       +      -
    325H  HIS*     1.3    87.1    +      -       -      +
    327H  GLY*     1.3    68.9    +      -       -      +
    328H  GLY      2.6    17.3    +      -       -      +
    329H  PHE*     3.8     0.9    +      -       -      +
    342H  VAL*     3.5    31.2    -      -       +      -
    343H  ASN      3.1    18.6    -      -       -      +
    344H  LYS      3.7     1.3    -      -       -      -
    345H  TYR*     3.3    24.1    -      +       +      -
    351H  ASN*     2.3    29.8    +      -       -      -
    352H  ALA      3.7     0.5    +      -       -      -
    353H  LEU*     2.9    36.0    +      -       +      +
    354H  MET*     3.5    28.3    -      -       +      -
    437H  TRP*     4.9     1.3    -      +       -      -
----------------------------------------------------------
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Residues in contact with GLY 327 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307H  PRO      5.5     1.0    -      -       -      -
    308H  THR      3.3     4.0    -      -       -      +
    309H  GLU*     3.0    26.9    -      -       -      +
    325H  HIS*     3.3    20.0    +      -       -      -
    326H  TYR*     1.3    70.1    -      -       -      +
    328H  GLY*     1.3    55.7    +      -       -      +
    344H  LYS*     3.0    31.5    +      -       -      -
    346H  ARG*     4.2     4.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with GLY 328 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308H  THR      4.0     0.9    -      -       -      -
    326H  TYR*     2.6    10.8    +      -       -      +
    327H  GLY*     1.3    73.1    -      -       -      +
    329H  PHE*     1.3    59.3    +      -       -      +
    341H  SER      4.5     0.2    -      -       -      -
    342H  VAL*     3.3     2.8    -      -       -      -
    343H  ASN*     2.7    58.8    +      -       -      +
    344H  LYS*     3.4    12.5    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 329 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    252H  ILE*     6.1     1.1    -      -       +      -
    299H  ILE*     4.5     8.3    -      -       +      -
    303H  THR*     3.8    16.1    -      -       +      -
    308H  THR*     2.9    34.2    +      -       -      +
    310H  LEU*     3.3    57.7    -      -       +      +
    326H  TYR*     4.0     0.9    -      -       +      +
    328H  GLY*     1.3    74.8    -      -       -      +
    330H  THR*     1.3    80.6    +      -       -      +
    331H  VAL*     3.1    33.2    -      -       +      -
    340H  ILE*     4.2    12.1    -      -       +      -
    341H  SER      3.5     2.9    -      -       -      -
    342H  VAL*     3.6    19.7    -      -       +      -
    403H  TRP*     4.3     8.7    -      +       -      -
    452H  MET*     5.5     3.8    -      -       +      -
    454H  ILE*     3.9    16.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with THR 330 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303H  THR*     3.6    20.0    -      -       -      +
    304H  ARG*     6.1     3.4    -      -       -      -
    306H  GLY      4.9     7.0    -      -       -      +
    308H  THR*     4.6     1.6    -      -       -      +
    328H  GLY      5.6     0.2    -      -       -      -
    329H  PHE*     1.3    90.2    -      -       -      +
    331H  VAL*     1.3    64.7    +      -       -      +
    332H  GLN*     3.7    10.9    +      -       -      +
    339H  GLN      3.5     2.6    -      -       -      +
    340H  ILE*     3.6     1.4    -      -       -      +
    341H  SER*     2.8    69.4    +      -       -      +
    343H  ASN*     5.8     1.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 331 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296H  ASN*     5.1     4.5    -      -       +      +
    299H  ILE*     3.6    17.5    -      -       +      -
    300H  SER*     2.6    35.8    +      -       -      +
    303H  THR*     3.2    11.2    +      -       +      -
    304H  ARG*     4.3     1.7    +      -       -      -
    329H  PHE*     3.1    36.6    -      -       +      -
    330H  THR*     1.3    71.0    -      -       -      +
    332H  GLN*     1.3    75.8    +      -       -      +
    338H  TYR*     3.9    20.0    -      -       +      -
    339H  GLN      3.5     4.5    -      -       -      +
    340H  ILE*     4.7     0.4    -      -       -      +
    403H  TRP*     3.6    25.6    -      -       +      -
----------------------------------------------------------
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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