Contacts of the helix formed by residues 320 - 334 (chain H) in PDB entry 2VT5


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 SER 320 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202H  ILE*     3.8     4.7    -      -       -      +
    203H  LYS      2.7    22.9    +      -       -      -
    204H  LYS      3.4    10.5    -      -       -      -
    206H  GLY      3.6     3.7    +      -       -      -
    259H  GLY*     3.6     7.3    -      -       -      -
    260H  GLY      2.8    27.6    +      -       -      -
    319H  GLY*     1.3    71.2    -      -       -      -
    321H  PRO*     1.3    70.7    -      -       -      +
    323H  ASP*     3.0    26.0    +      -       -      +
    324H  VAL*     2.9    21.4    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 321 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    202H  ILE*     4.0     4.5    -      -       +      +
    203H  LYS      3.7     9.0    -      -       -      +
    204H  LYS*     3.5    24.0    -      -       +      +
    292H  GLY      3.6    23.6    -      -       -      +
    294H  MET*     3.8    30.2    -      -       +      +
    319H  GLY      3.5     4.0    -      -       -      +
    320H  SER*     1.3    82.3    -      -       -      +
    322H  ASP*     1.3    57.4    +      -       -      +
    325H  LEU*     2.9    40.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 322 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    204H  LYS*     2.8    64.2    +      -       -      +
    205H  LYS*     3.7    35.3    +      -       +      +
    321H  PRO*     1.3    77.3    -      -       -      +
    323H  ASP*     1.3    57.3    +      -       -      +
    325H  LEU*     4.0     8.4    -      -       -      +
    326H  GLU*     3.0    28.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ASP 323 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205H  LYS*     3.6     9.5    +      -       -      -
    206H  GLY*     2.7    31.7    +      -       -      -
    226H  TYR*     3.6    17.4    +      -       -      +
    230H  LYS*     5.0     0.2    +      -       -      -
    240H  TYR*     2.5    37.2    +      -       -      -
    260H  GLY*     3.6     6.6    -      -       -      +
    261H  ILE*     3.7    18.3    -      -       +      +
    320H  SER*     3.0    18.3    +      -       -      +
    322H  ASP*     1.3    74.5    -      -       -      +
    324H  VAL*     1.3    60.2    +      -       -      +
    326H  GLU*     3.2     7.7    +      -       -      +
    327H  PHE      3.0    23.7    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 324 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261H  ILE*     4.0    12.8    -      -       +      -
    294H  MET*     3.7    33.0    -      -       +      +
    296H  THR*     3.8    28.7    -      -       +      -
    317H  ILE*     4.1     4.9    -      -       +      +
    318H  LEU*     3.6    10.1    -      -       -      +
    319H  GLY      3.5    28.9    -      -       -      +
    320H  SER      2.9    19.3    +      -       -      +
    321H  PRO      4.1     0.7    -      -       -      +
    323H  ASP*     1.3    75.7    -      -       -      +
    325H  LEU*     1.3    57.2    +      -       -      +
    327H  PHE*     3.2     4.8    +      -       -      +
    328H  LEU*     3.0    30.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 325 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294H  MET*     3.7    30.7    -      -       +      -
    321H  PRO*     2.9    30.3    +      -       +      +
    322H  ASP*     4.0     9.0    -      -       -      +
    324H  VAL*     1.3    75.7    -      -       -      +
    326H  GLU*     1.3    58.0    +      -       -      +
    328H  LEU*     3.3    15.6    +      -       +      +
    329H  LYS*     2.9    27.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLU 326 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    205H  LYS*     2.9    26.7    +      -       -      -
    226H  TYR*     3.7    11.1    -      -       +      -
    229H  ARG*     4.7    12.2    +      -       -      +
    230H  LYS*     2.8    32.7    +      -       -      -
    322H  ASP      3.0    16.2    +      -       -      +
    323H  ASP*     3.2     6.7    +      -       -      +
    325H  LEU*     1.3    73.6    -      -       -      +
    327H  PHE*     1.3    65.4    +      -       -      +
    329H  LYS*     3.2    26.1    +      -       -      +
    330H  VAL*     3.1    23.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with PHE 327 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222H  ALA*     4.5     4.7    -      -       +      -
    223H  VAL*     4.2    29.8    -      -       +      -
    226H  TYR*     3.7    32.0    -      +       +      -
    261H  ILE*     4.1    10.3    -      -       +      -
    263H  LEU*     3.9    20.4    -      -       +      -
    265H  PRO*     5.1     1.6    -      -       +      -
    296H  THR*     4.8     0.4    -      -       +      -
    298H  GLY*     4.5     6.5    -      -       -      -
    317H  ILE*     3.6    42.0    -      -       +      -
    323H  ASP      3.0    12.8    +      -       -      +
    324H  VAL      3.5     7.6    -      -       -      +
    326H  GLU*     1.3    75.4    -      -       -      +
    328H  LEU*     1.3    61.6    +      -       +      +
    330H  VAL*     3.2     4.2    +      -       -      +
    331H  TYR*     2.8    60.0    +      +       +      +
----------------------------------------------------------
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Residues in contact with LEU 328 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    294H  MET*     4.7     6.1    -      -       +      -
    296H  THR*     3.7    36.1    -      -       +      +
    298H  GLY*     3.7    27.1    -      -       -      +
    324H  VAL*     3.0    21.9    +      -       +      +
    325H  LEU*     3.5    28.5    -      -       +      +
    327H  PHE*     1.3    77.0    -      -       +      +
    329H  LYS*     1.3    59.5    +      -       -      +
    331H  TYR*     3.7     5.0    -      -       +      +
    332H  GLU*     2.9    35.1    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 329 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    229H  ARG*     4.6    15.7    -      -       -      +
    325H  LEU      2.9    12.4    +      -       -      +
    326H  GLU*     3.2    28.3    +      -       -      +
    328H  LEU*     1.3    75.5    -      -       -      +
    330H  VAL*     1.3    63.0    +      -       +      +
    332H  GLU*     3.6     5.2    +      -       -      +
    333H  LYS*     3.2    21.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with VAL 330 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    222H  ALA*     3.4    26.7    -      -       -      +
    225H  GLU*     3.8    28.0    -      -       +      -
    226H  TYR*     3.9    19.7    -      -       +      +
    229H  ARG*     3.9    32.1    -      -       -      +
    326H  GLU*     3.1    16.4    +      -       +      +
    327H  PHE      3.2     5.8    +      -       -      +
    329H  LYS*     1.3    76.4    -      -       +      +
    331H  TYR*     1.3    65.2    +      -       -      +
    333H  LYS*     3.2    20.3    +      -       +      +
    334H  HIS*     3.3    10.7    +      -       -      +
----------------------------------------------------------
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Residues in contact with TYR 331 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220H  ASP*     4.8    15.5    -      -       -      -
    222H  ALA*     3.8    16.8    -      -       +      +
    223H  VAL*     6.3     0.4    -      -       +      -
    266H  ALA*     6.2     3.5    -      -       +      +
    297H  THR      5.1     2.9    +      -       -      -
    298H  GLY*     3.2    36.3    -      -       -      +
    299H  LYS*     3.6    29.9    -      -       +      +
    327H  PHE*     2.8    44.8    +      +       +      +
    328H  LEU*     3.7     8.3    -      -       +      +
    330H  VAL*     1.3    76.8    -      -       -      +
    332H  GLU*     1.3    67.3    +      -       +      +
    334H  HIS*     3.2    14.6    +      -       -      +
    335H  SER*     3.2    30.6    +      -       -      -
----------------------------------------------------------
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Residues in contact with GLU 332 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    328H  LEU*     2.9    18.7    +      -       +      +
    329H  LYS*     3.8     6.5    -      -       -      +
    331H  TYR*     1.3    75.6    -      -       +      +
    333H  LYS*     1.3    65.3    +      -       -      +
    334H  HIS      3.1     2.9    +      -       -      -
    335H  SER*     3.2    25.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 333 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    225H  GLU*     2.6    43.2    +      -       -      +
    229H  ARG*     3.7    11.0    -      -       -      +
    329H  LYS*     3.2    14.6    +      -       +      +
    330H  VAL*     3.2    13.9    +      -       -      +
    332H  GLU*     1.3    77.4    -      -       -      +
    334H  HIS*     1.3    63.5    +      -       +      +
    335H  SER      3.6     0.6    -      -       -      +
----------------------------------------------------------
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Residues in contact with HIS 334 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    220H  ASP*     5.0     2.5    -      -       -      +
    221H  PRO*     3.7    42.1    +      -       +      +
    222H  ALA*     3.6    18.5    -      -       +      +
    225H  GLU*     2.8    34.0    +      -       +      -
    330H  VAL      3.3    16.6    +      -       -      -
    331H  TYR      3.2     8.8    +      -       -      +
    332H  GLU      3.1     0.6    -      -       -      -
    333H  LYS*     1.3    89.6    -      -       +      +
    335H  SER*     1.3    59.5    +      -       -      +
    336H  ALA      3.8     1.9    +      -       -      -
----------------------------------------------------------
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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