Contacts of the helix formed by residues 297 - 312 (chain D) in PDB entry 2R6C


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 297 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    137D  ASP*     5.1    14.4    -      -       -      +
    138D  VAL*     5.4    11.7    -      -       -      +
    141D  ASP*     2.6    36.3    +      -       -      +
    296D  ILE*     1.3    76.3    -      -       -      +
    298D  VAL*     1.3    67.5    +      -       -      +
    299D  SER*     3.4     4.5    -      -       -      +
    300D  ASP*     3.2    35.4    +      -       -      +
    301D  ILE*     3.5     9.7    +      -       -      +
    325D  ILE*     4.4     0.7    -      -       -      -
    326D  GLN*     3.4    55.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with VAL 298 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    296D  ILE      4.1     0.4    +      -       -      -
    297D  ARG*     1.3    73.9    -      -       -      +
    299D  SER*     1.3    56.7    +      -       -      +
    300D  ASP      2.8     1.4    +      -       -      -
    301D  ILE*     2.8    28.6    +      -       +      +
    302D  ARG*     2.9    16.3    +      -       +      +
    325D  ILE*     3.9    13.0    -      -       +      +
    326D  GLN      4.6     1.5    +      -       -      +
    342D  ILE*     3.6    45.1    -      -       +      -
    345D  SER*     3.2    33.7    -      -       -      +
    346D  LEU*     4.1    17.7    -      -       +      -
    349D  LEU*     5.7     1.8    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 299 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  MET*     5.7     3.3    -      -       -      +
    141D  ASP*     2.3    34.3    +      -       -      -
    144D  ASP*     4.1    18.2    -      -       -      -
    297D  ARG*     4.2     7.1    -      -       -      +
    298D  VAL*     1.3    77.0    -      -       -      +
    300D  ASP*     1.3    61.4    +      -       -      +
    302D  ARG*     3.7    15.8    -      -       -      +
    303D  ALA*     2.9    27.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 300 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    141D  ASP*     4.8     0.7    -      -       -      +
    296D  ILE*     4.7    15.2    -      -       +      +
    297D  ARG*     3.2    35.3    +      -       +      +
    298D  VAL      2.8     1.4    +      -       -      -
    299D  SER*     1.3    79.0    +      -       -      +
    301D  ILE*     1.3    65.3    +      -       -      +
    302D  ARG      3.2     0.7    -      -       -      -
    303D  ALA*     3.8     8.1    -      -       -      +
    304D  LYS*     3.2    38.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 301 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238D  PHE*     3.5    32.7    -      -       +      -
    240D  LEU*     5.8     0.7    -      -       +      -
    296D  ILE*     3.5    24.2    -      -       +      +
    297D  ARG      3.5     6.9    +      -       -      +
    298D  VAL*     2.8    11.3    +      -       +      +
    300D  ASP*     1.3    73.9    -      -       -      +
    302D  ARG*     1.3    59.3    +      -       -      +
    305D  CYS*     2.9    37.0    +      -       -      -
    317D  ILE*     4.4     0.4    -      -       +      -
    319D  ILE*     3.7    34.5    -      -       +      -
    325D  ILE*     3.4    31.4    -      -       +      -
    346D  LEU*     4.8     2.2    -      -       +      -
    349D  LEU*     3.8    22.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 302 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  MET*     4.5    15.2    -      -       -      -
    298D  VAL*     2.9    16.8    +      -       +      +
    299D  SER*     3.7    12.0    -      -       -      +
    301D  ILE*     1.3    76.5    -      -       -      +
    303D  ALA*     1.3    63.0    +      -       -      +
    305D  CYS*     4.1     1.0    -      -       -      +
    306D  ARG*     3.1    49.4    +      -       -      +
    345D  SER*     2.8    43.8    +      -       -      +
    348D  ALA*     3.5    14.5    -      -       -      +
    349D  LEU*     3.3    44.1    -      -       +      +
    352D  GLU*     2.8    29.6    +      -       -      +
    353D  LEU*     6.3     0.2    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 303 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  MET*     6.5     0.9    -      -       +      -
    299D  SER      2.9    19.6    +      -       -      +
    300D  ASP*     4.2    11.7    -      -       -      +
    301D  ILE      3.4     0.2    -      -       -      -
    302D  ARG*     1.3    73.3    -      -       -      +
    304D  LYS*     1.3    67.5    +      -       +      +
    306D  ARG*     3.4    15.7    +      -       -      +
    307D  ARG*     3.3    38.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 304 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    238D  PHE*     4.6    11.7    -      -       +      -
    291D  ASP*     3.1    35.9    +      -       +      +
    293D  THR*     3.7    11.7    +      -       -      +
    296D  ILE*     5.8     2.5    -      -       +      +
    300D  ASP*     3.2    26.3    +      -       -      +
    301D  ILE      4.0     2.0    -      -       -      +
    303D  ALA*     1.3    76.8    -      -       +      +
    305D  CYS*     1.3    65.9    +      -       -      +
    306D  ARG      3.3     0.3    +      -       -      -
    307D  ARG*     3.3    12.4    +      -       -      +
    308D  LEU*     3.2    21.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with CYS 305 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    236D  ALA*     4.4     8.5    -      -       -      -
    238D  PHE*     3.5    29.4    -      -       -      -
    301D  ILE*     2.9    25.8    +      -       -      +
    302D  ARG      4.2     2.2    -      -       -      +
    304D  LYS*     1.3    77.3    -      -       -      +
    306D  ARG*     1.3    61.6    +      -       -      +
    308D  LEU*     3.4     8.8    +      -       -      +
    309D  LYS*     3.2    22.5    +      -       -      +
    314D  LEU*     4.2     6.4    -      -       +      +
    317D  ILE*     3.6    28.7    -      -       +      -
    349D  LEU*     4.5     2.5    -      -       +      -
    353D  LEU*     3.7    22.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 306 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    148A  MET*     3.3    54.6    +      -       -      +
    302D  ARG*     3.1    44.5    +      -       -      +
    303D  ALA*     3.4    15.3    -      -       -      +
    304D  LYS      3.2     0.2    -      -       -      -
    305D  CYS*     1.3    76.7    -      -       -      +
    307D  ARG*     1.3    62.3    +      -       +      +
    309D  LYS*     3.4    16.5    +      -       +      +
    310D  GLN*     3.3    30.3    +      -       -      +
    352D  GLU*     2.9    41.3    +      -       -      +
    353D  LEU*     4.2    15.4    -      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 307 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303D  ALA*     3.3    26.0    +      -       -      +
    304D  LYS*     3.3    12.8    +      -       -      +
    306D  ARG*     1.3    81.5    -      -       +      +
    308D  LEU*     1.3    61.0    +      -       -      +
    310D  GLN*     3.7    10.7    +      -       -      +
    311D  GLU*     3.5    26.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 308 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234D  ASN*     5.2     1.6    -      -       +      -
    236D  ALA*     4.3    21.1    -      -       +      -
    289D  TYR*     3.9    52.9    -      -       +      -
    304D  LYS      3.2    14.2    +      -       -      +
    305D  CYS*     3.7     7.2    -      -       -      +
    306D  ARG      3.3     0.2    -      -       -      -
    307D  ARG*     1.3    78.1    -      -       -      +
    309D  LYS*     1.3    64.2    +      -       -      +
    311D  GLU*     5.0     2.7    -      -       +      -
    312D  SER*     3.1    31.0    +      -       -      +
    313D  GLY      3.4     5.5    +      -       -      -
    314D  LEU*     4.4    17.3    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 309 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    305D  CYS      3.2    12.6    +      -       -      +
    306D  ARG*     3.6    11.7    -      -       -      +
    307D  ARG      3.3     0.4    -      -       -      -
    308D  LEU*     1.3    78.0    -      -       -      +
    310D  GLN*     1.3    66.3    +      -       +      +
    313D  GLY*     3.4    37.2    +      -       -      +
    314D  LEU*     4.1    11.2    -      -       +      +
    352D  GLU      5.1     2.2    -      -       -      +
    353D  LEU*     3.5    44.9    -      -       +      +
    354D  GLU*     5.5     2.7    -      -       -      -
    355D  VAL*     5.9     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 310 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    306D  ARG*     3.3    34.3    +      -       -      +
    307D  ARG*     3.7    10.7    +      -       -      +
    308D  LEU      3.4     0.2    -      -       -      -
    309D  LYS*     1.3    83.7    -      -       +      +
    311D  GLU*     1.3    60.6    +      -       +      +
    312D  SER      3.6     0.2    -      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 311 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    307D  ARG*     3.5    16.3    +      -       -      +
    308D  LEU*     3.5     4.2    +      -       +      +
    309D  LYS      3.4     0.4    -      -       -      -
    310D  GLN*     1.3    80.7    -      -       +      +
    312D  SER*     1.3    66.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 312 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234D  ASN*     3.0    20.9    +      -       -      -
    289D  TYR*     3.9    18.3    +      -       -      -
    308D  LEU*     3.1    19.1    +      -       -      +
    309D  LYS      4.5     0.2    -      -       -      -
    310D  GLN      3.6     0.8    -      -       -      -
    311D  GLU*     1.3    88.0    +      -       -      +
    313D  GLY*     1.3    57.6    +      -       -      +
----------------------------------------------------------
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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