Contacts of the helix formed by residues 277 - 287 (chain H) in PDB entry 2OME


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 ASP 277 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    251H  HIS*     3.3    32.8    +      -       +      -
    253H  ILE      2.9    19.6    +      -       -      +
    254H  ASN*     4.0     7.5    -      -       +      +
    255H  ASP*     4.1    10.0    +      -       -      +
    258H  ILE*     5.1     0.5    -      -       -      +
    276H  VAL*     1.3    67.8    -      -       -      +
    278H  GLU*     1.3    58.6    +      -       -      +
    279H  LYS*     3.3    19.8    +      -       -      +
    280H  ALA*     3.0    38.9    +      -       +      +
    281H  LEU*     3.0    12.6    +      -       -      +
    299H  GLU*     4.4     1.9    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 278 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273H  GLY*     4.8     2.4    -      -       -      -
    276H  VAL*     3.3    20.9    +      -       +      +
    277H  ASP*     1.3    71.7    -      -       -      +
    279H  LYS*     1.3    57.3    +      -       -      +
    281H  LEU*     3.7     3.6    -      -       +      +
    282H  ALA*     2.8    31.2    +      -       -      +
    295H  LEU*     4.6     6.5    -      -       +      +
    297H  VAL      4.2     2.3    -      -       -      +
    298H  HIS*     3.3    19.5    -      -       -      +
    299H  GLU*     3.0    56.3    +      -       -      +
    300H  SER      4.6     1.4    +      -       -      -
    303H  PHE*     5.8     0.3    -      -       -      -
    309H  PRO*     4.1    19.0    -      -       +      +
    310H  LEU*     3.8    37.5    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 279 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    277H  ASP*     3.2    13.2    +      -       -      +
    278H  GLU*     1.3    78.7    -      -       -      +
    280H  ALA*     1.3    60.8    +      -       -      +
    282H  ALA*     3.4     5.0    +      -       -      +
    283H  GLN*     3.3    25.4    +      -       -      +
    299H  GLU*     4.5     1.0    +      -       -      -
    309H  PRO*     4.0    17.3    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 280 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    254H  ASN*     3.8     2.0    -      -       -      -
    255H  ASP*     3.6    39.0    +      -       -      +
    258H  ILE*     3.6    14.9    -      -       +      +
    277H  ASP*     3.0    27.6    +      -       +      +
    279H  LYS*     1.3    77.3    -      -       -      +
    281H  LEU*     1.3    64.4    +      -       -      +
    283H  GLN*     3.3     7.7    +      -       -      +
    284H  ALA*     3.0    21.3    +      -       -      +
    289H  ARG*     5.4     0.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 281 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    253H  ILE*     5.9     0.2    -      -       +      -
    258H  ILE*     3.5    10.0    -      -       +      +
    267H  LEU*     4.2    17.0    -      -       +      -
    276H  VAL*     4.3    16.2    -      -       +      -
    277H  ASP      3.0    12.0    +      -       -      +
    278H  GLU*     3.7     9.4    -      -       +      +
    280H  ALA*     1.3    76.0    -      -       -      +
    282H  ALA*     1.3    65.1    +      -       -      +
    284H  ALA*     3.1     2.8    +      -       -      +
    285H  LEU*     2.9    40.1    +      -       +      +
    290H  ILE*     3.8    27.8    -      -       +      -
    293H  ALA*     4.1    17.0    -      -       +      -
    295H  LEU*     3.8    28.7    -      -       +      -
    310H  LEU*     4.2     9.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 282 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    278H  GLU      2.8    22.3    +      -       -      +
    279H  LYS*     3.6     7.0    -      -       -      +
    280H  ALA      3.3     0.2    -      -       -      -
    281H  LEU*     1.3    73.3    -      -       -      +
    283H  GLN*     1.3    61.9    +      -       -      +
    285H  LEU*     3.4     3.4    +      -       -      +
    286H  LYS*     3.1    41.5    +      -       -      +
    309H  PRO      3.3    26.5    -      -       -      +
    310H  LEU*     4.3    11.4    -      -       +      +
    313H  ALA*     4.5     8.0    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLN 283 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    255H  ASP*     4.6    16.4    +      -       -      +
    279H  LYS      3.3    10.5    +      -       -      +
    280H  ALA*     3.3     9.1    +      -       -      +
    281H  LEU      3.2     0.4    -      -       -      -
    282H  ALA*     1.3    79.0    -      -       -      +
    284H  ALA*     1.3    58.0    +      -       -      +
    286H  LYS*     3.3    12.6    +      -       +      +
    287H  GLU*     2.9    59.8    +      -       -      +
    289H  ARG*     5.2     4.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ALA 284 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    258H  ILE*     3.8    29.8    -      -       +      -
    280H  ALA      3.0    13.7    +      -       -      +
    281H  LEU      3.4     7.6    -      -       -      +
    283H  GLN*     1.3    78.1    -      -       -      +
    285H  LEU*     1.3    61.4    +      -       -      +
    287H  GLU*     3.5     1.0    +      -       -      -
    288H  GLY      3.2     2.9    +      -       -      -
    289H  ARG*     3.0    43.6    +      -       +      +
    290H  ILE*     3.3    20.5    +      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 285 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    281H  LEU*     2.9    45.4    +      -       +      +
    282H  ALA*     3.7     3.8    -      -       -      +
    284H  ALA*     1.3    74.0    -      -       -      +
    286H  LYS*     1.3    66.5    +      -       -      +
    288H  GLY*     3.1    13.5    +      -       -      -
    290H  ILE*     3.7    26.4    -      -       +      +
    292H  GLY*     3.8    22.2    -      -       -      -
    293H  ALA*     3.9    10.5    -      -       +      +
    310H  LEU*     4.8     1.3    -      -       +      -
    313H  ALA*     4.2    15.3    -      -       +      -
    314H  PRO*     3.6    40.1    -      -       +      +
    315H  ASN*     3.9     7.8    -      -       +      +
    316H  LEU*     4.5    10.1    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LYS 286 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282H  ALA*     3.1    34.1    +      -       -      +
    283H  GLN*     3.8     8.8    -      -       +      +
    285H  LEU*     1.3    75.9    -      -       -      +
    287H  GLU*     1.3    62.3    +      -       +      +
    288H  GLY      3.4     0.5    +      -       -      -
    309H  PRO      4.9     5.1    +      -       -      -
    312H  ASP*     4.5    19.5    -      -       -      +
    313H  ALA*     4.6     5.6    -      -       -      +
    314H  PRO*     3.9    23.1    -      -       +      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 287 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263H  GLN*     5.1     1.4    +      -       -      -
    283H  GLN*     2.9    44.6    +      -       -      +
    284H  ALA*     4.1     4.0    -      -       -      +
    285H  LEU      3.2     0.2    -      -       -      -
    286H  LYS*     1.3    76.9    -      -       +      +
    288H  GLY*     1.3    56.4    +      -       -      +
    289H  ARG*     3.1    41.5    +      -       +      +
----------------------------------------------------------
 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