Contacts of the helix formed by residues 319 - 332 (chain H) in PDB entry 2OX4


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 THR 319 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     21H  PRO*     3.5    31.9    -      -       +      -
     23H  LEU*     3.6    12.5    -      -       +      +
     37H  GLU*     2.5    32.6    +      -       -      +
    316H  VAL*     5.6     0.2    -      -       -      +
    318H  GLY*     1.3    76.6    -      -       -      +
    320H  GLY*     1.3    60.7    +      -       -      +
    321H  VAL*     3.0    14.7    +      -       -      +
    322H  ALA      3.2     3.3    +      -       -      -
    323H  GLU*     3.0    25.5    +      -       -      +
    345H  THR*     6.1     1.3    -      -       -      -
    350H  TYR*     4.1     8.5    -      -       +      -
    353H  LEU*     3.7    22.9    -      -       +      -
    354H  CYS*     3.9     8.9    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLY 320 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    319H  THR*     1.3    73.6    -      -       -      +
    321H  VAL*     1.3    58.3    -      -       -      +
    323H  GLU*     3.8     8.3    -      -       -      -
    324H  ALA*     2.9    31.7    +      -       -      +
    350H  TYR      5.5     2.2    +      -       -      -
    354H  CYS*     3.7    10.2    -      -       -      -
    356H  HIS      5.1     1.6    -      -       -      -
    358H  TYR*     5.3     0.3    -      -       -      -
    375H  GLN*     3.3    22.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 321 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     23H  LEU*     3.9    11.2    -      -       +      -
     35H  LEU*     4.1    14.4    -      -       +      +
     36H  GLY*     3.9    32.5    -      -       -      +
     37H  GLU*     3.5     5.8    -      -       +      +
     98H  ILE*     5.0     2.5    -      -       +      -
    319H  THR*     3.0    14.2    +      -       -      +
    320H  GLY*     1.3    73.6    -      -       -      +
    322H  ALA*     1.3    65.3    +      -       -      +
    324H  ALA*     4.0     1.2    -      -       -      +
    325H  ALA*     3.0    26.0    +      -       -      +
    354H  CYS*     3.7    14.3    -      -       -      -
    373H  ILE*     3.9    17.9    -      -       +      +
    375H  GLN*     3.9    15.0    -      -       +      -
    376H  ASP      5.0     0.9    -      -       -      -
    377H  ILE*     4.3    13.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 322 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37H  GLU*     3.0    36.7    +      -       +      +
     98H  ILE*     6.0     3.1    -      -       -      -
    288H  ASP*     5.7     4.9    -      -       -      +
    289H  LEU*     4.9     3.3    -      -       -      +
    316H  VAL*     4.6     6.7    -      -       +      -
    317H  ALA      5.5     1.3    -      -       -      +
    318H  GLY*     4.6     9.0    -      -       -      +
    319H  THR      3.2     9.2    +      -       -      +
    321H  VAL*     1.3    75.2    -      -       -      +
    323H  GLU*     1.3    62.7    +      -       -      +
    325H  ALA*     3.6     5.7    -      -       -      +
    326H  SER*     3.0    24.1    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 323 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    316H  VAL*     3.8    20.6    -      -       +      +
    318H  GLY      5.8     0.4    -      -       -      +
    319H  THR      3.0    14.8    +      -       -      +
    320H  GLY*     3.6     7.4    +      -       -      +
    321H  VAL      3.3     0.2    -      -       -      -
    322H  ALA*     1.3    72.7    -      -       -      +
    324H  ALA*     1.3    67.3    +      -       -      +
    326H  SER*     2.6    22.9    +      -       -      -
    327H  LEU*     3.3     9.9    +      -       +      +
    339H  HIS*     2.9    27.5    +      -       +      +
    340H  GLU      3.4     7.1    -      -       -      +
    341H  HIS*     2.9    29.4    +      -       -      -
    342H  HIS      5.5     0.2    -      -       -      -
    345H  THR*     3.3    21.2    -      -       +      +
    358H  TYR*     4.6     5.2    -      -       +      +
    365H  TYR*     3.4    20.8    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 324 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320H  GLY      2.9    20.2    +      -       -      +
    321H  VAL      4.0     1.3    -      -       -      +
    323H  GLU*     1.3    74.5    -      -       -      +
    325H  ALA*     1.3    64.7    +      -       -      +
    327H  LEU*     3.1    23.0    +      -       -      +
    328H  HIS*     3.2    18.2    -      -       -      -
    358H  TYR*     4.2    18.5    -      -       +      +
    368H  PRO*     4.4     2.1    -      -       +      +
    373H  ILE*     3.7    18.6    -      -       +      +
    375H  GLN*     3.8    18.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 325 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     98H  ILE*     4.1    17.9    -      -       +      -
    289H  LEU*     3.5    17.0    -      -       +      -
    295H  PHE*     3.3    27.5    -      -       +      -
    321H  VAL      3.0    18.8    +      -       -      +
    322H  ALA*     3.6     6.5    -      -       -      +
    324H  ALA*     1.3    74.3    -      -       -      +
    326H  SER*     1.3    63.2    +      -       -      +
    328H  HIS*     3.2    15.6    +      -       -      +
    329H  ALA      3.3     9.0    +      -       -      -
    373H  ILE*     4.4     7.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with SER 326 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    289H  LEU*     3.6    13.9    -      -       -      +
    314H  ALA*     4.2    10.5    -      -       -      -
    315H  HIS      5.6     0.2    -      -       -      -
    316H  VAL*     3.4    22.9    -      -       -      +
    322H  ALA      3.0    14.7    +      -       -      -
    323H  GLU      2.6    19.9    +      -       -      -
    325H  ALA*     1.3    75.7    -      -       -      +
    327H  LEU*     1.3    56.6    +      -       -      +
    329H  ALA*     3.3     3.0    +      -       -      +
    330H  GLU*     3.0    35.3    +      -       -      +
    339H  HIS*     3.2    20.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 327 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    124H  LEU*     3.6    21.5    -      -       +      +
    323H  GLU*     3.5    16.6    -      -       +      +
    324H  ALA*     3.1    11.9    +      -       -      +
    326H  SER*     1.3    78.7    +      -       -      +
    328H  HIS*     1.3    57.1    +      -       -      +
    330H  GLU*     4.0     2.3    -      -       -      +
    331H  ILE*     3.0    33.1    +      -       -      +
    339H  HIS*     3.6    25.6    -      -       +      +
    358H  TYR*     4.9     7.0    -      -       +      -
    365H  TYR*     3.7    36.1    -      -       +      -
    366H  LYS      3.8    20.2    -      -       -      +
    367H  VAL*     3.7     7.4    -      -       +      +
    368H  PRO*     3.9    21.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with HIS 328 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    111H  PRO*     3.8     5.2    -      -       +      -
    112H  VAL*     3.5    13.0    +      -       +      -
    113H  TYR*     3.1    29.7    +      -       -      +
    116H  LEU*     3.8     2.6    -      -       -      +
    295H  PHE*     4.0    10.8    -      -       +      -
    324H  ALA      3.2    25.6    -      -       -      -
    325H  ALA*     3.2     7.1    +      -       -      +
    327H  LEU*     1.3    74.4    -      -       -      +
    329H  ALA*     1.3    65.9    +      -       -      +
    331H  ILE*     3.6     3.1    +      -       -      +
    332H  ALA*     3.3    25.1    +      -       -      +
    367H  VAL*     3.5    12.9    -      -       +      +
    368H  PRO*     3.5    29.9    -      -       +      +
    370H  LEU      5.0     0.2    -      -       -      -
    372H  GLY      3.5    16.8    -      -       -      -
    373H  ILE*     2.8    34.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 329 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    116H  LEU*     4.0    10.3    -      -       -      -
    289H  LEU*     4.0    22.0    -      -       +      -
    295H  PHE*     4.0     6.5    -      -       +      -
    298H  PHE*     3.8    30.6    -      -       +      -
    325H  ALA      3.3     8.6    +      -       -      +
    326H  SER*     3.3     7.6    +      -       -      +
    328H  HIS*     1.3    80.8    -      -       -      +
    330H  GLU*     1.3    62.0    +      -       -      +
    332H  ALA*     3.5     8.0    +      -       -      +
    333H  ILE*     3.6    21.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 330 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    121H  ARG*     2.9    20.0    +      -       -      -
    124H  LEU*     3.6    14.7    -      -       +      +
    298H  PHE*     4.5     6.5    -      -       +      -
    312H  VAL*     5.5     0.4    -      -       +      +
    314H  ALA*     2.9    43.1    +      -       +      +
    326H  SER      3.0    19.9    +      -       -      +
    329H  ALA*     1.3    74.1    -      -       -      +
    331H  ILE*     1.3    62.6    +      -       -      +
    332H  ALA      3.1     3.2    +      -       -      -
    333H  ILE*     3.4    17.9    -      -       +      +
    336H  PHE*     3.5    31.7    -      -       +      +
    338H  ILE      3.8     3.8    -      -       -      +
    339H  HIS*     2.5    37.2    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 331 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    113H  TYR*     3.6    37.5    -      -       +      -
    118H  GLY      3.6     0.4    -      -       -      +
    119H  LYS*     4.0    12.1    -      -       +      -
    120H  ASN*     2.9    35.0    +      -       -      +
    121H  ARG*     3.5    36.5    +      -       +      +
    122H  GLU      4.3    12.3    -      -       -      +
    123H  ASP*     4.6     1.1    -      -       -      +
    124H  LEU*     4.2    17.6    -      -       +      +
    327H  LEU      3.0    19.6    +      -       -      +
    328H  HIS      3.6     0.7    -      -       -      +
    330H  GLU*     1.3    79.7    -      -       -      +
    332H  ALA*     1.3    59.2    +      -       -      +
    367H  VAL*     3.8    31.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 332 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     69A  GLU*     3.4    21.3    -      -       -      +
    113H  TYR*     4.2     4.3    -      -       +      +
    116H  LEU*     3.7    33.8    -      -       +      +
    118H  GLY      3.1    16.8    -      -       -      +
    120H  ASN*     3.1    14.8    +      -       -      -
    299H  LYS*     4.9     1.2    +      -       -      -
    328H  HIS      3.3    17.4    +      -       -      +
    329H  ALA      3.9     4.9    -      -       -      +
    330H  GLU      3.1     1.2    -      -       -      -
    331H  ILE*     1.3    75.8    -      -       -      +
    333H  ILE*     1.3    59.1    +      -       +      +
----------------------------------------------------------
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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