Contacts of the helix formed by residues 339 - 350 (chain L) in PDB entry 1RBO


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 ARG 339 (chain L).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    331L  VAL*     3.9    25.2    -      -       +      +
    337L  GLY      3.8     2.2    +      -       -      -
    338L  GLU*     1.3    72.6    -      -       -      +
    340L  ASP*     1.3    64.5    +      -       -      +
    342L  THR*     3.6     1.6    -      -       -      -
    343L  LEU*     2.9    56.9    +      -       +      +
    389L  ALA*     6.1     1.2    -      -       -      +
    392L  GLU*     2.8    44.1    +      -       -      -
    393L  ILE*     3.5    33.0    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 340 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    338L  GLU*     3.5     1.8    -      -       +      +
    339L  ARG*     1.3    83.1    -      -       -      +
    341L  ILE*     1.3    66.0    +      -       +      +
    343L  LEU*     3.5    14.1    +      -       -      +
    344L  GLY      3.0    16.8    +      -       -      -
    359L  SER      4.3    18.3    -      -       -      +
    360L  ARG*     3.6    25.1    -      -       +      +
    475L  VAL*     5.7     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ILE 341 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    310L  HIS*     3.5    33.7    -      -       +      +
    312L  ARG*     4.2    10.6    +      -       -      +
    338L  GLU*     3.5    16.4    +      -       +      +
    339L  ARG      3.4     0.6    -      -       -      -
    340L  ASP*     1.3    76.0    -      -       +      +
    342L  THR*     1.3    64.4    +      -       -      +
    344L  GLY*     3.0    10.7    +      -       -      -
    345L  PHE*     3.1    21.9    +      -       +      -
    360L  ARG      4.0     8.7    -      -       -      +
    473L  ASP*     3.6    35.7    -      -       -      +
    474L  THR*     3.8     3.6    -      -       -      -
    475L  VAL*     3.4    42.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with THR 342 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328L  SER      4.0    19.3    +      -       -      +
    329L  GLY*     5.2     1.6    -      -       -      +
    331L  VAL*     4.0    19.3    -      -       +      +
    337L  GLY*     3.9    13.9    -      -       -      -
    338L  GLU      2.7    23.8    +      -       -      -
    339L  ARG      3.6     4.3    -      -       -      -
    341L  ILE*     1.3    74.3    -      -       -      +
    343L  LEU*     1.3    66.6    +      -       -      +
    344L  GLY      3.1     0.3    +      -       -      -
    345L  PHE*     3.2    19.0    +      -       +      -
    346L  VAL*     2.9    39.4    +      -       +      +
    393L  ILE*     5.4     3.1    -      -       +      -
    394L  PHE*     4.3    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 343 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339L  ARG*     2.9    48.2    +      -       +      +
    340L  ASP*     3.9    15.0    -      -       -      +
    342L  THR*     1.3    75.9    -      -       +      +
    344L  GLY*     1.3    62.9    +      -       -      +
    346L  VAL*     3.4    10.6    +      -       +      +
    347L  ASP*     3.1    21.2    +      -       -      +
    360L  ARG*     3.4    23.1    +      -       -      +
    393L  ILE*     3.5    40.4    -      -       +      +
    394L  PHE*     6.1     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLY 344 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    312L  ARG*     6.3     0.4    -      -       -      -
    340L  ASP      3.0    15.0    +      -       -      -
    341L  ILE      3.4     4.7    -      -       -      -
    342L  THR      3.0     1.0    -      -       -      -
    343L  LEU*     1.3    79.8    -      -       -      +
    345L  PHE*     1.3    59.7    +      -       -      +
    347L  ASP*     3.3     5.2    +      -       -      +
    348L  LEU*     3.3    22.7    +      -       -      +
    360L  ARG*     3.8    17.9    -      -       -      +
    362L  ILE*     3.8    21.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 345 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    295L  ARG*     4.7     2.7    -      -       -      -
    310L  HIS*     4.3    12.8    -      +       -      -
    311L  PHE*     3.6    38.8    -      +       +      -
    312L  ARG*     3.9    27.0    -      -       +      +
    315L  ALA*     4.8     3.8    -      -       +      -
    328L  SER*     3.4    35.2    -      -       -      -
    341L  ILE*     3.1    34.0    +      -       +      -
    342L  THR*     3.2    28.7    +      -       +      -
    344L  GLY*     1.3    72.7    -      -       -      +
    346L  VAL*     1.3    69.9    +      -       +      +
    348L  LEU*     3.2    11.5    +      -       +      +
    349L  LEU*     3.0    32.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 346 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328L  SER*     4.5     4.3    -      -       -      -
    342L  THR*     2.9    26.7    +      -       +      +
    343L  LEU*     3.8    12.8    -      -       +      +
    345L  PHE*     1.3    82.3    -      -       +      +
    347L  ASP*     1.3    64.2    +      -       -      +
    349L  LEU*     3.1     9.0    +      -       -      +
    350L  ARG*     3.0    59.8    +      -       -      +
    376L  PRO*     4.2    18.2    -      -       +      -
    393L  ILE      6.0     0.4    -      -       -      +
    394L  PHE*     4.0    29.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 347 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    343L  LEU*     3.1    14.7    +      -       -      +
    344L  GLY      3.5     9.0    -      -       -      +
    346L  VAL*     1.3    80.1    -      -       -      +
    348L  LEU*     1.3    56.9    +      -       -      +
    350L  ARG*     4.6    12.4    +      -       -      -
    351L  ASP*     3.0    54.9    +      -       -      +
    354L  THR*     3.5    13.6    +      -       +      +
    360L  ARG*     2.8    32.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 348 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137L  ASP*     5.1     0.7    -      -       -      +
    312L  ARG*     4.1    27.1    -      -       +      +
    315L  ALA*     6.0     2.2    -      -       +      -
    316L  LYS*     3.9    37.9    -      -       +      +
    319L  ARG*     2.8    19.9    +      -       -      -
    344L  GLY      3.3    14.7    +      -       -      +
    345L  PHE*     3.2    17.4    +      -       +      +
    347L  ASP*     1.3    78.4    -      -       -      +
    349L  LEU*     1.3    59.0    +      -       +      +
    354L  THR*     3.8    29.4    -      -       +      -
    362L  ILE*     4.5    17.3    -      -       +      -
    366L  GLN*     4.2    14.6    -      -       +      -
    368L  TRP*     3.4    16.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 349 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    311L  PHE*     5.1     1.3    -      -       +      -
    315L  ALA*     3.6    42.6    -      -       +      +
    318L  LEU*     5.3     0.4    -      -       +      -
    319L  ARG*     3.3    20.4    +      -       +      +
    326L  ILE*     3.6    33.9    -      -       +      -
    328L  SER*     4.8     9.9    -      -       -      -
    345L  PHE*     3.0    27.6    +      -       +      +
    346L  VAL*     3.1    11.6    +      -       -      +
    348L  LEU*     1.3    82.5    -      -       -      +
    350L  ARG*     1.3    59.9    +      -       +      +
    374L  VAL*     2.9    46.3    +      -       +      +
    376L  PRO*     4.9     6.3    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 350 (chain L). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    155L  ILE*     3.9    12.0    -      -       +      +
    319L  ARG*     4.0     1.8    +      -       -      -
    346L  VAL*     3.0    33.8    +      -       -      +
    347L  ASP*     4.6     9.5    +      -       -      -
    349L  LEU*     1.3    79.7    -      -       +      +
    351L  ASP*     1.3    72.0    +      -       -      +
    373L  GLY*     3.7    17.8    +      -       -      -
    374L  VAL      3.4    17.7    -      -       -      +
    376L  PRO*     3.6    17.4    -      -       +      +
    393L  ILE      5.3     1.8    +      -       -      -
    394L  PHE*     2.8    29.9    +      -       -      +
    397L  ASP*     2.8    53.5    +      -       -      +
----------------------------------------------------------
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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