Contacts of the helix formed by residues 339 - 351 (chain D) in PDB entry 2P5G


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 GLN 339 (chain D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    334D  ILE      3.4     1.6    +      -       -      -
    335D  ASP*     3.1    19.8    +      -       -      +
    336D  ALA      4.6     4.5    -      -       -      +
    337D  LYS      3.0    11.1    +      -       -      +
    338D  ARG*     1.3    79.4    -      -       -      +
    340D  PHE*     1.3    66.0    +      -       -      +
    341D  ILE      4.0     0.2    -      -       -      -
    342D  ASN*     4.5    16.7    +      -       +      -
    343D  LEU*     3.8    12.3    +      -       -      +
    550D  VAL*     4.3    18.4    +      -       -      +
    553D  MSE      5.2    10.3    -      -       -      +
    554D  THR*     3.7    36.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with PHE 340 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    273D  TYR*     3.3    32.0    +      -       +      +
    276D  LEU*     4.3    25.8    -      -       +      +
    280D  PHE*     5.8     6.5    -      -       +      -
    335D  ASP*     3.2     4.8    +      -       -      -
    338D  ARG*     3.3     6.6    +      -       +      +
    339D  GLN*     1.3    71.6    -      -       -      +
    341D  ILE*     1.3    69.8    +      -       -      +
    342D  ASN      3.1     1.6    -      -       -      -
    343D  LEU*     2.7    24.4    +      -       -      +
    344D  SER*     3.5     4.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 341 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    110D  VAL*     4.7    17.3    -      -       +      -
    212D  ILE*     4.2    18.6    -      -       +      -
    214D  THR*     4.2    30.7    -      -       +      +
    271D  LEU*     4.7    15.9    -      -       +      -
    273D  TYR*     4.1    12.8    -      -       +      -
    276D  LEU*     5.9     0.2    -      -       +      -
    335D  ASP*     2.8    34.6    +      -       -      +
    340D  PHE*     1.3    73.6    -      -       +      +
    342D  ASN*     1.3    61.1    +      -       -      +
    344D  SER*     2.8    22.0    +      -       -      +
    345D  LEU*     3.1    31.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 342 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103D  TYR*     3.6    18.2    +      -       -      -
    105D  HIS*     3.7    27.3    -      -       -      +
    335D  ASP*     4.4     4.0    +      -       -      +
    339D  GLN*     4.5    18.8    +      -       +      -
    340D  PHE      2.8     5.1    +      -       -      +
    341D  ILE*     1.3    76.1    -      -       -      +
    343D  LEU*     1.3    55.7    +      -       -      +
    345D  LEU*     3.6     8.7    +      -       -      +
    346D  ASP*     3.1    27.9    +      -       -      +
    554D  THR*     3.1    34.8    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 343 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    339D  GLN*     3.8    13.1    +      -       -      +
    340D  PHE*     2.7    18.4    +      -       -      +
    342D  ASN*     1.3    74.3    -      -       -      +
    344D  SER*     1.3    56.7    +      -       -      +
    346D  ASP*     3.4     2.9    +      -       -      +
    347D  MSE      3.0    24.6    +      -       -      +
    554D  THR*     3.7    15.8    +      -       -      +
    558D  ASN*     3.4    23.8    -      -       +      +
    561D  LEU*     6.2     2.5    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 344 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    271D  LEU*     3.8    22.5    -      -       -      +
    340D  PHE      3.5     3.4    +      -       -      -
    341D  ILE*     2.8    29.1    +      -       -      +
    343D  LEU*     1.3    76.2    -      -       -      +
    345D  LEU*     1.3    61.6    +      -       -      +
    347D  MSE      4.1     2.0    -      -       -      -
    348D  GLY*     3.0    23.6    +      -       -      -
    355D  ILE*     4.2     3.6    -      -       -      +
    358D  VAL*     3.2    40.3    -      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 345 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103D  TYR*     4.4    15.0    -      -       +      -
    105D  HIS*     5.5     7.6    -      -       +      -
    108D  ILE*     5.3    13.2    -      -       +      -
    110D  VAL*     6.0     2.2    -      -       +      -
    212D  ILE*     4.1    29.4    -      -       +      -
    341D  ILE*     3.1    39.6    +      -       +      +
    342D  ASN*     3.8    13.9    -      -       -      +
    344D  SER*     1.3    76.7    +      -       -      +
    346D  ASP*     1.3    66.0    +      -       -      +
    348D  GLY*     3.2    11.2    +      -       -      -
    349D  TYR*     3.1    38.3    +      -       +      +
    355D  ILE*     5.4     9.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 346 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    103D  TYR*     3.3    38.7    +      -       -      +
    342D  ASN      3.1    13.9    +      -       -      +
    343D  LEU      3.5     5.2    -      -       -      +
    345D  LEU*     1.3    75.3    -      -       -      +
    347D  MSE      1.3    56.3    -      -       -      +
    349D  TYR*     3.5     2.1    +      -       -      +
    350D  TYR*     3.0    33.0    +      -       -      +
    551D  ALA      5.0     0.9    -      -       -      +
    554D  THR*     3.1    25.8    -      -       -      +
    555D  ALA*     3.6    19.0    -      -       -      +
    558D  ASN*     3.0    17.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with MSE 347 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    343D  LEU      3.0    13.5    +      -       -      +
    344D  SER*     3.5    10.5    -      -       -      +
    345D  LEU      3.1     0.4    -      -       -      -
    346D  ASP*     1.3    74.2    -      -       -      +
    348D  GLY*     1.3    57.9    +      -       -      +
    349D  TYR      3.0     4.7    +      -       -      -
    350D  TYR*     4.6    10.8    -      -       -      -
    351D  ALA*     2.9    36.0    +      -       +      +
    358D  VAL*     3.7    26.9    -      -       +      +
    364D  THR*     3.9    28.7    -      -       +      +
    368D  ILE*     5.6     0.7    -      -       -      -
    558D  ASN*     3.4    45.9    +      -       -      +
    561D  LEU*     4.5    16.2    -      -       +      +
    562D  LEU*     4.3    16.6    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 348 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      5D  TYR*     2.6    29.2    +      -       -      -
    344D  SER      3.0    14.3    +      -       -      -
    345D  LEU*     3.2     5.1    +      -       -      -
    347D  MSE      1.3    75.9    -      -       -      +
    349D  TYR*     1.3    54.3    +      -       -      +
    351D  ALA*     2.7    16.1    -      -       -      +
    353D  ILE*     3.0    10.9    -      -       -      +
    354D  GLN      4.0    12.3    -      -       -      -
    355D  ILE*     4.8     4.7    -      -       -      -
    358D  VAL*     4.1     2.7    -      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 349 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      4D  PHE*     3.3    30.9    -      +       +      -
      5D  TYR*     2.4    62.2    +      +       -      -
    101D  ILE*     3.1    50.6    -      -       +      +
    103D  TYR*     3.7    37.9    -      +       +      -
    108D  ILE*     5.5     4.5    -      -       -      +
    345D  LEU*     3.1    37.2    +      -       +      +
    346D  ASP      4.0     3.1    -      -       -      +
    347D  MSE      3.0     0.4    -      -       -      -
    348D  GLY*     1.3    78.8    -      -       -      +
    350D  TYR*     1.3    66.4    +      -       -      +
    351D  ALA      3.9     3.6    -      -       -      -
    352D  LYS*     4.0     4.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 350 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    346D  ASP*     3.0    25.2    +      -       -      +
    347D  MSE      3.9    10.5    -      -       -      +
    349D  TYR*     1.3    78.5    -      -       -      +
    351D  ALA*     1.3    64.5    +      -       +      +
    352D  LYS*     3.4     3.3    +      -       -      +
    368D  ILE*     4.2    31.1    -      -       +      +
    478D  VAL*     4.8    15.8    -      -       +      +
    481D  GLN*     2.6    42.7    +      -       +      +
    485D  HIS*     5.9     6.1    -      +       -      -
    555D  ALA*     6.3     2.9    -      -       +      -
    558D  ASN*     5.4     1.1    -      -       -      +
    559D  ARG*     5.8    10.0    -      -       +      +
    562D  LEU*     6.5     0.4    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 351 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    347D  MSE      2.9    17.1    +      -       +      +
    348D  GLY*     2.7    21.1    -      -       -      +
    349D  TYR      3.9     0.2    -      -       -      -
    350D  TYR*     1.3    73.2    -      -       +      +
    352D  LYS*     1.3    54.5    +      -       -      +
    353D  ILE*     2.6    20.9    +      -       +      +
    364D  THR*     4.0    26.5    -      -       +      +
    367D  ALA*     4.4     5.6    -      -       +      -
    368D  ILE*     3.7    30.1    -      -       +      +
----------------------------------------------------------
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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