Contacts of the helix formed by residues 322 - 333 (chain P) in PDB entry 1HH2


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 GLY 322 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    318P  ILE*     3.1    30.9    -      -       -      +
    319P  GLY      2.9     6.7    +      -       -      -
    321P  GLY*     1.3    77.7    -      -       -      +
    323P  GLN*     1.3    53.3    +      -       -      +
    324P  ASN      3.2     0.3    +      -       -      -
    325P  ALA*     3.3     4.1    +      -       -      +
    326P  ARG*     2.7    41.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with GLN 323 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228P  GLU*     4.6     6.1    -      -       -      +
    231P  VAL*     3.6    27.2    -      -       +      +
    232P  ARG*     3.0    32.1    +      -       -      +
    269P  LYS*     3.1    17.4    +      -       -      +
    318P  ILE      3.6     0.6    +      -       -      -
    320P  LYS*     3.3    39.9    +      -       -      +
    321P  GLY      3.3     2.8    +      -       -      -
    322P  GLY*     1.3    77.8    -      -       -      +
    324P  ASN*     1.3    60.5    +      -       -      +
    326P  ARG*     3.7    20.1    -      -       -      +
    327P  LEU*     3.0    35.9    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASN 324 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    232P  ARG*     3.2    20.7    +      -       -      +
    234P  LYS*     2.9    32.4    +      -       -      +
    287P  LEU*     2.9    32.5    +      -       -      +
    288P  ALA      3.5     2.6    -      -       -      +
    289P  PRO*     3.9     3.9    +      -       -      -
    316P  LEU      3.7     7.1    +      -       -      +
    317P  ALA*     2.9    26.1    +      -       -      +
    318P  ILE      3.1     9.6    +      -       -      +
    319P  GLY*     3.8     7.9    -      -       -      -
    323P  GLN*     1.3    78.9    -      -       -      +
    325P  ALA*     1.3    61.5    +      -       -      +
    327P  LEU      3.5     0.3    +      -       -      -
    328P  ALA*     3.0    27.9    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 325 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287P  LEU*     4.0    12.6    -      -       +      -
    317P  ALA      3.5     0.6    +      -       -      -
    318P  ILE*     3.1    16.8    +      -       +      +
    322P  GLY*     4.0     2.9    -      -       -      +
    324P  ASN*     1.3    77.1    -      -       -      +
    326P  ARG*     1.3    61.4    +      -       -      +
    328P  ALA*     3.7     1.2    -      -       -      +
    329P  ALA*     2.9    30.7    +      -       -      +
    336P  ILE*     4.7     9.8    -      -       +      +
    338P  ILE*     3.4    31.0    -      -       +      -
----------------------------------------------------------
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Residues in contact with ARG 326 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    228P  GLU*     2.9    40.6    +      -       -      +
    320P  LYS      5.1     0.2    +      -       -      -
    321P  GLY      2.5    34.2    +      -       -      -
    322P  GLY*     2.7    24.1    +      -       -      +
    323P  GLN*     3.7    15.7    -      -       -      +
    325P  ALA*     1.3    74.1    -      -       -      +
    327P  LEU*     1.3    63.5    +      -       +      +
    329P  ALA*     3.3     6.3    +      -       -      +
    330P  LYS*     3.1    23.7    +      -       +      +
----------------------------------------------------------
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Residues in contact with LEU 327 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    226P  ALA*     3.4    32.6    -      -       +      +
    227P  ARG      4.2     0.9    -      -       -      +
    228P  GLU*     3.5    37.7    -      -       +      +
    231P  VAL*     5.5     0.4    -      -       +      -
    232P  ARG*     3.6    46.4    -      -       +      +
    233P  THR      4.6     0.2    -      -       -      +
    234P  LYS*     3.7    22.7    -      -       +      -
    323P  GLN*     3.0    25.5    +      -       +      +
    326P  ARG*     1.3    77.1    -      -       +      +
    328P  ALA*     1.3    58.1    +      -       -      +
    330P  LYS*     3.3     6.4    +      -       +      -
    331P  LEU*     2.9    31.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with ALA 328 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    234P  LYS*     4.0     7.6    -      -       -      +
    286P  ALA*     3.8    23.1    -      -       +      +
    287P  LEU*     3.6    25.1    -      -       +      -
    324P  ASN      3.0    19.0    +      -       -      +
    325P  ALA      3.7     2.9    -      -       -      +
    326P  ARG      3.2     0.2    -      -       -      -
    327P  LEU*     1.3    77.6    -      -       -      +
    329P  ALA*     1.3    61.2    +      -       -      +
    331P  LEU*     3.9     1.4    -      -       -      +
    332P  THR*     2.8    32.7    +      -       -      +
    336P  ILE*     4.0     8.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 329 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    325P  ALA      2.9    17.6    +      -       -      +
    326P  ARG*     3.7     5.8    -      -       -      +
    328P  ALA*     1.3    76.4    -      -       -      +
    330P  LYS*     1.3    59.8    +      -       -      +
    332P  THR*     3.2     2.0    +      -       -      -
    333P  GLY*     2.8    28.8    +      -       -      -
    334P  TRP      3.3    24.3    -      -       -      +
    335P  LYS*     5.0     1.8    -      -       +      -
    336P  ILE*     3.9    14.8    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 330 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    201P  PRO*     6.2     1.8    -      -       -      +
    225P  ILE      5.2     3.1    -      -       -      +
    226P  ALA*     4.1    20.9    -      -       +      +
    227P  ARG      4.4    16.7    +      -       -      +
    228P  GLU*     6.3     1.1    -      -       +      +
    326P  ARG*     3.1    18.2    +      -       +      +
    327P  LEU*     3.8     9.4    -      -       +      +
    329P  ALA*     1.3    79.4    -      -       -      +
    331P  LEU*     1.3    62.5    +      -       -      +
    332P  THR      3.4     0.2    +      -       -      -
    333P  GLY*     3.6     7.0    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 331 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    224P  ALA*     3.6    29.0    -      -       +      +
    225P  ILE*     3.5    26.7    -      -       -      +
    226P  ALA*     3.7     8.7    -      -       +      +
    234P  LYS*     3.4    37.9    -      -       +      +
    235P  VAL      4.4     0.2    -      -       -      -
    236P  ALA*     4.1    16.4    -      -       +      +
    273P  LEU*     4.9     6.7    -      -       +      -
    282P  LEU*     4.7    10.4    -      -       +      +
    286P  ALA*     5.1     4.9    -      -       +      -
    327P  LEU      2.9    18.6    +      -       -      +
    328P  ALA*     3.9     6.1    -      -       -      +
    330P  LYS*     1.3    77.2    -      -       -      +
    332P  THR*     1.3    71.0    +      -       +      +
----------------------------------------------------------
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Residues in contact with THR 332 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    282P  LEU*     3.8    34.3    -      -       +      +
    283P  ILE*     4.1    15.3    -      -       +      -
    286P  ALA*     4.2    11.4    -      -       +      -
    303P  LYS*     5.0     2.8    -      -       -      -
    328P  ALA      2.8    19.6    +      -       -      +
    329P  ALA*     3.2     4.2    +      -       -      -
    331P  LEU*     1.3    83.8    -      -       +      +
    333P  GLY*     1.3    58.0    +      -       -      +
    334P  TRP*     2.9    44.9    +      -       -      +
    336P  ILE*     4.2     2.7    -      -       +      +
----------------------------------------------------------
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Residues in contact with GLY 333 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    303P  LYS*     3.6    22.7    -      -       -      +
    329P  ALA      2.8    11.0    +      -       -      -
    330P  LYS      3.6     5.5    +      -       -      -
    331P  LEU      3.5     2.4    -      -       -      -
    332P  THR*     1.3    78.0    -      -       -      +
    334P  TRP*     1.3    61.5    +      -       -      +
    335P  LYS*     4.1     2.1    +      -       -      +
----------------------------------------------------------
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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