Contacts of the helix formed by residues 427 - 444 (chain A) in PDB entry 3PU3


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 LYS 427 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  EDO      2.6    23.4    +      -       -      +
    425A  HIS      4.8     4.5    -      -       -      +
    426A  PHE*     1.3    76.9    -      -       -      +
    428A  PRO*     1.3    70.8    -      -       +      +
    429A  SER*     3.2     4.3    -      -       -      +
    430A  GLN*     3.1    19.4    +      -       +      +
    431A  LEU*     3.0    20.1    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 428 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371A  TRP*     4.3    14.1    -      -       +      -
    410A  THR*     3.8    30.1    -      -       +      -
    422A  LEU*     3.2    31.0    -      -       +      -
    426A  PHE*     3.1    15.2    -      -       +      +
    427A  LYS*     1.3    84.9    -      -       +      +
    429A  SER*     1.3    64.6    +      -       -      +
    431A  LEU*     3.4     2.9    +      -       +      +
    432A  ILE*     3.1    31.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 429 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    410A  THR*     6.2     0.2    -      -       -      -
    427A  LYS*     3.2     2.8    +      -       -      -
    428A  PRO*     1.3    79.9    -      -       -      +
    430A  GLN*     1.3    63.0    +      -       -      +
    432A  ILE*     3.7     9.6    +      -       -      +
    433A  LYS*     3.3    22.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 430 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  EDO      5.0     1.3    -      -       -      +
    427A  LYS*     3.1    25.2    +      -       +      +
    429A  SER*     1.3    77.8    -      -       -      +
    431A  LEU*     1.3    59.8    +      -       -      +
    433A  LYS*     3.4     8.8    +      -       -      +
    434A  ASP*     2.9    58.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 431 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
      9A  EDO      4.2    14.9    +      -       -      +
    371A  TRP*     3.9    30.7    -      -       +      +
    374A  GLY      4.0     4.7    -      -       -      +
    375A  LYS*     4.3    11.4    -      -       -      +
    378A  LEU*     3.8    29.2    -      -       +      -
    406A  PHE*     4.2     7.9    -      -       +      -
    426A  PHE*     4.0    19.5    -      -       +      -
    427A  LYS      3.0    15.1    +      -       -      +
    428A  PRO*     3.8     4.0    -      -       +      +
    430A  GLN*     1.3    76.3    -      -       -      +
    432A  ILE*     1.3    57.3    +      -       -      +
    434A  ASP*     3.1     6.7    +      -       -      +
    435A  LEU*     2.8    59.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ILE 432 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    371A  TRP*     4.7     2.0    -      -       +      -
    403A  ASN*     3.1    28.6    +      -       -      +
    406A  PHE*     3.8    28.5    -      -       +      +
    407A  ARG*     3.5    37.9    -      -       +      +
    410A  THR*     3.5    25.4    -      -       -      +
    428A  PRO*     3.1    24.9    +      -       +      +
    429A  SER*     3.8     7.9    -      -       -      +
    431A  LEU*     1.3    75.1    -      -       -      +
    433A  LYS*     1.3    60.1    +      -       -      +
    435A  LEU*     4.7     0.2    -      -       -      -
    436A  ALA*     2.9    26.5    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 433 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    429A  SER      3.3    14.6    +      -       -      +
    430A  GLN*     4.0    10.1    -      -       -      +
    432A  ILE*     1.3    82.6    -      -       +      +
    434A  ASP*     1.3    64.3    +      -       -      +
    436A  ALA*     3.9     6.1    -      -       -      +
    437A  LYS*     3.2    24.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 434 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378A  LEU*     3.7    31.1    -      -       +      +
    382A  LYS*     4.9    10.2    +      -       -      -
    430A  GLN*     2.9    52.3    +      -       -      +
    431A  LEU*     3.4     5.6    +      -       -      +
    433A  LYS*     1.3    79.2    -      -       -      +
    435A  LEU*     1.3    58.3    +      -       -      +
    437A  LYS*     3.7     3.5    +      -       -      +
    438A  GLU*     3.0    32.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 435 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    374A  GLY*     3.9     8.1    -      -       -      +
    377A  LEU*     4.2    11.0    -      -       +      -
    378A  LEU*     3.9    30.5    -      -       +      +
    381A  PHE*     4.3    14.6    -      -       +      -
    399A  ALA*     4.6     9.9    -      -       +      +
    402A  LEU*     6.4     0.2    -      -       +      -
    403A  ASN*     3.7    25.1    -      -       +      +
    406A  PHE*     4.2    14.1    -      -       +      -
    431A  LEU*     2.8    48.9    +      -       +      +
    434A  ASP*     1.3    75.8    -      -       -      +
    436A  ALA*     1.3    60.2    +      -       -      +
    437A  LYS      3.2     0.2    -      -       -      -
    438A  GLU*     3.1     3.1    +      -       -      +
    439A  ILE*     2.9    39.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with ALA 436 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    403A  ASN*     3.3     5.9    -      -       -      +
    407A  ARG*     3.5    24.2    -      -       -      +
    432A  ILE      2.9    16.4    +      -       -      +
    433A  LYS*     3.9     7.0    -      -       -      +
    435A  LEU*     1.3    75.6    -      -       -      +
    437A  LYS*     1.3    62.2    +      -       -      +
    439A  ILE*     3.8     7.2    -      -       -      +
    440A  ARG*     3.0    22.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 437 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    433A  LYS      3.2    15.9    +      -       -      +
    434A  ASP*     3.9     6.3    -      -       -      +
    436A  ALA*     1.3    79.8    -      -       -      +
    438A  GLU*     1.3    61.0    +      -       +      +
    440A  ARG*     3.1    29.4    +      -       -      +
    441A  LEU*     2.8    28.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 438 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    378A  LEU*     3.9    13.2    -      -       +      -
    381A  PHE*     3.6    40.5    -      -       +      +
    382A  LYS*     4.0    19.3    -      -       -      +
    385A  HIS*     2.9    39.0    +      -       -      -
    434A  ASP      3.0    19.3    +      -       -      +
    435A  LEU*     3.1     6.3    +      -       -      +
    437A  LYS*     1.3    77.5    -      -       +      +
    439A  ILE*     1.3    62.5    +      -       -      +
    441A  LEU*     3.5     9.6    +      -       -      +
    442A  SER*     3.2    17.3    +      -       -      -
----------------------------------------------------------
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Residues in contact with ILE 439 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381A  PHE*     3.7    24.0    -      -       +      -
    396A  VAL*     4.3     8.5    -      -       +      +
    399A  ALA*     3.6    26.5    -      -       +      +
    400A  LYS*     3.8    29.6    -      -       +      +
    403A  ASN*     4.4     7.4    -      -       +      +
    435A  LEU*     2.9    29.3    +      -       +      +
    436A  ALA*     3.8     7.9    -      -       -      +
    438A  GLU*     1.3    73.4    -      -       -      +
    440A  ARG*     1.3    63.8    +      -       -      +
    442A  SER*     3.5     2.4    +      -       -      -
    443A  GLU*     2.9    54.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with ARG 440 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    436A  ALA      3.0    14.2    +      -       -      +
    437A  LYS*     3.1    28.5    +      -       -      +
    439A  ILE*     1.3    77.5    -      -       -      +
    441A  LEU*     1.3    67.8    +      -       -      +
    442A  SER      3.2     0.2    +      -       -      -
    443A  GLU*     3.3    10.0    +      -       -      +
    444A  ASN*     3.2    42.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 441 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381A  PHE*     6.4     0.7    -      -       +      -
    385A  HIS*     3.4    41.3    -      -       +      +
    437A  LYS      2.8    15.3    +      -       -      +
    438A  GLU*     3.7    11.7    -      -       -      +
    440A  ARG*     1.3    78.8    -      -       -      +
    442A  SER*     1.3    66.4    +      -       -      +
    444A  ASN*     3.1    23.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with SER 442 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    381A  PHE*     4.0    18.2    -      -       -      -
    390A  GLN*     2.9    43.4    +      -       -      +
    391A  LEU      6.1     0.4    -      -       -      -
    396A  VAL*     3.9    20.5    -      -       -      +
    438A  GLU      3.2    10.2    +      -       -      -
    439A  ILE*     3.7     8.5    -      -       -      -
    440A  ARG      3.3     0.2    -      -       -      -
    441A  LEU*     1.3    79.0    -      -       -      +
    443A  GLU*     1.3    65.7    +      -       -      +
    444A  ASN      2.9    13.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 443 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390A  GLN*     5.0     0.2    -      -       -      +
    396A  VAL*     5.0     6.5    -      -       +      -
    400A  LYS*     4.1    14.5    +      -       -      +
    439A  ILE*     2.9    41.0    +      -       +      +
    440A  ARG*     3.8     6.3    -      -       -      +
    442A  SER*     1.3    76.2    -      -       -      +
    444A  ASN*     1.3    69.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASN 444 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    390A  GLN*     5.1     2.3    +      -       -      +
    440A  ARG*     3.2    33.1    +      -       -      +
    441A  LEU*     3.1    17.0    +      -       -      +
    442A  SER      2.9    13.9    +      -       -      +
    443A  GLU*     1.3    92.2    -      -       -      +
----------------------------------------------------------
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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