Contacts of the strand formed by residues 69 - 72 (chain H) in PDB entry 43C9


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 ILE 69 (chain H).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36H  TRP*     3.6    33.7    -      -       +      +
     48H  LEU*     4.8     1.6    -      -       +      +
     49H  GLY*     3.8    35.4    -      -       -      +
     50H  MET      3.8     3.1    -      -       -      +
     51H  ILE*     4.1    26.0    -      -       +      -
     57H  ILE*     3.5    24.2    -      -       +      +
     58H  GLU      4.2     1.3    -      -       -      +
     59H  TYR*     3.1    28.7    +      -       +      -
     67H  LEU*     5.5     1.1    -      -       +      -
     68H  SER*     1.3    81.7    +      -       -      +
     70H  SER*     1.3    71.0    +      -       -      +
     78H  ILE*     4.5     1.6    -      -       +      -
     79H  PHE      3.2     8.3    -      -       -      +
     80H  LEU*     3.9    10.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with SER 70 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     51H  ILE*     3.8    10.8    -      -       -      -
     57H  ILE*     4.7     2.7    -      -       -      -
     68H  SER*     5.1     5.0    +      -       -      -
     69H  ILE*     1.3    77.0    -      -       -      +
     71H  LYS*     1.3    65.0    +      -       -      +
     78H  ILE*     3.4     7.4    -      -       -      +
     79H  PHE*     2.8    43.4    +      -       -      +
     81H  LYS*     5.7     2.8    +      -       -      -
----------------------------------------------------------
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Residues in contact with LYS 71 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29H  LEU*     3.5    25.3    +      -       +      +
     32H  TYR      4.6     0.8    +      -       -      -
     51H  ILE*     3.5    26.4    +      -       +      +
     52H  TRP      3.3    15.9    +      -       -      -
     53H  GLY*     2.8    34.1    +      -       -      -
     55H  GLY*     4.3    11.4    -      -       -      +
     70H  SER*     1.3    81.5    +      -       -      +
     72H  ASP*     1.3    62.9    +      -       -      +
     73H  ASN*     3.4    28.7    +      -       -      +
     77H  GLN      3.4    14.1    -      -       -      +
     78H  ILE*     4.1     7.9    -      -       +      -
     79H  PHE*     3.8     7.4    -      -       -      -
----------------------------------------------------------
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Residues in contact with ASP 72 (chain H). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     29H  LEU*     4.5     1.8    -      -       -      -
     71H  LYS*     1.3    76.5    -      -       -      +
     73H  ASN*     1.3    65.2    +      -       -      +
     74H  SER*     3.0    25.2    +      -       -      -
     75H  LYS*     2.9    32.2    +      -       -      +
     76H  SER      3.3     4.0    +      -       -      -
     77H  GLN*     3.0    29.2    +      -       +      +
     79H  PHE*     4.2    15.7    -      -       +      -
----------------------------------------------------------
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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