Contacts of the strand formed by residues 335 - 340 (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 LYS 335 (chain P).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    302P  ASN      4.8     5.5    +      -       -      +
    303P  LYS      3.1     9.5    +      -       -      +
    304P  ALA*     4.0    18.2    -      -       +      -
    305P  ALA*     2.9    25.2    +      -       -      -
    329P  ALA*     5.0     2.9    -      -       +      -
    333P  GLY      5.5     2.5    -      -       -      +
    334P  TRP*     1.3    76.6    -      -       -      +
    336P  ILE*     1.3    63.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 336 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    283P  ILE*     4.3    26.2    -      -       +      -
    287P  LEU*     4.6     6.1    -      -       +      -
    305P  ALA*     3.5     4.5    -      -       +      +
    307P  VAL*     3.8    21.8    -      -       +      -
    325P  ALA*     4.7     7.5    -      -       +      +
    328P  ALA*     4.0    17.5    -      -       +      +
    329P  ALA*     3.9    36.2    -      -       +      +
    332P  THR*     4.2     7.0    -      -       +      +
    334P  TRP*     3.7     9.5    +      -       +      +
    335P  LYS*     1.3    81.2    -      -       -      +
    337P  ASP*     1.3    63.7    +      -       -      +
    338P  ILE*     4.0    23.4    +      -       +      +
----------------------------------------------------------
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Residues in contact with ASP 337 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    298P  LEU*     5.2     6.3    -      -       +      -
    305P  ALA      2.9    13.2    +      -       -      +
    306P  ARG*     3.4    16.9    -      -       +      +
    307P  VAL      2.7    32.4    +      -       -      -
    336P  ILE*     1.3    76.0    -      -       -      +
    338P  ILE*     1.3    59.8    +      -       -      +
    339P  LYS*     3.2    40.2    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 338 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    287P  LEU*     4.3    11.0    -      -       +      -
    307P  VAL*     3.4    12.6    -      -       +      +
    309P  VAL*     3.8    27.1    -      -       +      -
    314P  LEU*     4.1    18.0    -      -       +      +
    317P  ALA*     3.8    32.8    -      -       +      +
    318P  ILE*     4.0    14.8    -      -       +      +
    325P  ALA*     3.4    33.0    -      -       +      -
    336P  ILE*     4.0    12.3    +      -       +      +
    337P  ASP*     1.3    74.5    +      -       -      +
    339P  LYS*     1.3    84.0    +      -       -      +
    340P  PRO*     4.6     1.8    -      -       -      +
----------------------------------------------------------
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Residues in contact with LYS 339 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    306P  ARG*     4.5    17.0    -      -       +      +
    307P  VAL      2.8     6.4    +      -       -      +
    308P  LEU*     3.2    25.4    -      -       +      -
    309P  VAL*     2.8    29.2    +      -       -      -
    337P  ASP*     3.2    35.5    +      -       -      +
    338P  ILE*     1.3    92.4    +      -       -      +
    340P  PRO*     1.3    71.5    -      -       +      +
----------------------------------------------------------
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Residues in contact with PRO 340 (chain P). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    308P  LEU*     4.5     3.3    -      -       -      +
    309P  VAL*     3.0    12.8    -      -       +      +
    311P  PRO*     4.6    17.9    -      -       +      -
    314P  LEU*     4.2    31.6    -      -       +      -
    338P  ILE      4.6     0.9    -      -       -      +
    339P  LYS*     1.3    99.6    -      -       +      +
    341P  ILE*     1.3    68.9    +      -       -      +
----------------------------------------------------------
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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