Contacts of the helix formed by residues 320 - 330 (chain B) in PDB entry 5H1Y


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 THR 320 (chain B).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263B  ILE*     4.7     1.3    -      -       -      -
    264B  CYS      3.5    14.1    -      -       -      +
    265B  PRO      4.1     2.7    -      -       -      +
    266B  SER*     3.5    35.2    -      -       -      +
    267B  ARG      4.0     2.2    -      -       -      +
    270B  ALA*     4.8     0.7    -      -       +      -
    297B  CYS      3.2     4.1    +      -       -      +
    298B  ILE*     3.5    16.9    -      -       +      +
    319B  ALA*     1.3    77.3    -      -       -      +
    321B  PRO*     1.3    74.3    -      -       -      +
    322B  GLY      4.9     0.2    -      -       -      -
    323B  ARG*     3.0    42.6    +      -       -      +
    324B  LEU*     3.2    20.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with PRO 321 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    263B  ILE*     3.8    17.5    -      -       +      -
    264B  CYS      3.2    15.7    -      -       -      +
    265B  PRO*     4.8     0.2    -      -       +      -
    320B  THR*     1.3    89.1    -      -       +      +
    322B  GLY*     1.3    63.9    +      -       -      +
    323B  ARG      3.3     0.3    +      -       -      -
    324B  LEU*     3.3     1.7    +      -       +      -
    325B  MET*     3.0    26.8    +      -       -      +
    349B  MET*     4.0     8.3    -      -       -      -
    354B  PHE*     3.9    37.9    -      -       +      -
    357B  ASP*     4.2    20.0    -      -       +      -
    358B  ILE*     4.6     4.7    -      -       +      -
    361B  ILE*     3.7    18.1    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 322 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    320B  THR*     3.5     1.0    -      -       -      -
    321B  PRO*     1.3    80.1    -      -       -      +
    323B  ARG*     1.3    69.2    +      -       -      +
    325B  MET*     3.8     8.7    -      -       -      +
    326B  ASP*     3.1    23.7    +      -       -      +
    354B  PHE*     5.6     4.9    -      -       -      -
    357B  ASP*     4.2    14.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with ARG 323 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    265B  PRO      5.7     1.0    +      -       -      -
    266B  SER*     5.9     0.4    -      -       -      +
    267B  ARG*     2.8    42.5    -      -       -      +
    297B  CYS*     3.8    22.4    -      -       -      +
    298B  ILE*     3.4     4.9    -      -       -      +
    299B  GLY*     3.2    26.5    -      -       -      +
    306B  GLN*     5.8     1.1    -      -       -      +
    320B  THR*     3.0    34.0    +      -       -      +
    321B  PRO      3.2     0.8    -      -       -      -
    322B  GLY*     1.3    81.4    -      -       -      +
    324B  LEU*     1.3    63.0    +      -       -      +
    326B  ASP*     3.4     6.9    +      -       -      +
    327B  LEU*     3.1    28.3    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 324 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    261B  LEU*     3.5    37.5    -      -       +      -
    263B  ILE*     4.1    10.1    -      -       +      -
    297B  CYS*     3.8    10.0    -      -       -      -
    317B  MET*     4.0    25.1    -      -       -      -
    319B  ALA*     4.1     9.0    -      -       +      -
    320B  THR      3.2    16.8    +      -       -      +
    321B  PRO      3.9     2.9    -      -       -      +
    323B  ARG*     1.3    74.3    -      -       -      +
    325B  MET*     1.3    66.1    +      -       -      +
    327B  LEU*     3.1     1.6    +      -       -      -
    328B  LEU*     2.8    41.0    +      -       +      +
    333B  VAL*     4.0    18.6    -      -       +      -
    335B  LEU*     5.0     3.4    -      -       +      -
    361B  ILE*     4.0    20.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with MET 325 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    321B  PRO      3.0    15.6    +      -       -      +
    322B  GLY*     3.8    10.1    -      -       -      +
    324B  LEU*     1.3    76.8    -      -       -      +
    326B  ASP*     1.3    58.3    +      -       +      +
    328B  LEU*     3.4    10.8    +      -       -      +
    329B  GLN*     2.9    57.9    +      -       +      +
    357B  ASP*     3.5    48.5    -      -       -      +
    360B  THR*     4.1    24.2    -      -       +      -
    361B  ILE*     4.3     9.1    -      -       +      +
    364B  TYR*     6.0     0.9    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 326 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    322B  GLY      3.1    16.9    +      -       -      +
    323B  ARG*     3.4     8.7    -      -       -      +
    325B  MET*     1.3    80.3    -      -       -      +
    327B  LEU*     1.3    65.5    +      -       -      +
    329B  GLN*     3.2    11.2    +      -       -      +
    330B  LYS*     2.9    70.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 327 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    297B  CYS*     3.6    11.4    -      -       -      -
    303B  VAL*     5.1    13.5    -      -       +      -
    306B  GLN*     3.4    33.9    -      -       -      +
    307B  MET*     4.2    11.0    -      -       +      -
    323B  ARG*     3.1    15.8    +      -       +      +
    324B  LEU      3.1     2.2    +      -       -      +
    326B  ASP*     1.3    87.4    -      -       -      +
    328B  LEU*     1.3    62.0    +      -       -      +
    330B  LYS*     3.5     5.2    +      -       +      +
    331B  LYS      3.2     2.3    +      -       -      -
    332B  MET*     2.8    49.8    +      -       +      -
    333B  VAL*     3.4    28.9    +      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 328 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    324B  LEU*     2.8    37.2    +      -       +      +
    325B  MET*     3.6     4.9    -      -       -      +
    327B  LEU*     1.3    76.8    -      -       -      +
    329B  GLN*     1.3    61.6    +      -       -      +
    331B  LYS*     3.1    19.8    +      -       -      +
    333B  VAL*     3.5    33.7    -      -       +      +
    334B  SER*     4.3     3.1    -      -       -      -
    335B  LEU*     3.8    31.2    -      -       +      +
    361B  ILE*     4.3    13.7    -      -       +      -
    364B  TYR*     3.7    54.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 329 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325B  MET*     2.9    47.8    +      -       +      +
    326B  ASP*     3.7     9.2    -      -       -      +
    328B  LEU*     1.3    75.5    -      -       -      +
    330B  LYS*     1.3    60.4    +      -       +      +
    331B  LYS*     3.3    15.0    +      -       -      +
    360B  THR*     4.3    12.7    -      -       -      +
    364B  TYR*     3.4    23.2    +      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 330 (chain B). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    326B  ASP*     2.9    50.3    +      -       -      +
    327B  LEU*     4.1     4.7    -      -       +      +
    328B  LEU      3.2     0.4    -      -       -      -
    329B  GLN*     1.3    78.7    -      -       +      +
    331B  LYS*     1.3    73.1    +      -       -      +
    332B  MET*     3.2    32.9    +      -       +      +
----------------------------------------------------------
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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