Contacts of the strand formed by residues 69 - 73 (chain D) in PDB entry 4UNA


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 D).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     53D  ALA*     3.3    33.7    -      -       +      +
     56D  MET*     3.7    19.7    -      -       +      -
     57D  GLN*     3.3    43.7    -      -       +      +
     60D  ILE*     4.8     4.9    -      -       +      -
     67D  SER      4.2     0.4    +      -       -      +
     68D  LYS*     1.3    82.9    -      -       -      +
     70D  GLN*     1.3    60.1    +      -       -      +
     71D  ILE*     4.0    15.1    +      -       +      +
     80D  LEU*     3.9    30.7    -      -       +      -
     81D  ARG      3.8     3.1    -      -       -      -
     82D  VAL*     4.2     6.7    -      -       +      -
----------------------------------------------------------
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Residues in contact with GLN 70 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     35D  GLU*     5.0     0.2    +      -       -      -
     68D  LYS*     4.1    11.2    -      -       +      +
     69D  ILE*     1.3    75.7    -      -       -      +
     71D  ILE*     1.3    62.9    +      -       -      +
     72D  VAL*     4.0     8.3    -      -       +      +
     79D  GLU      3.5     0.5    -      -       -      +
     80D  LEU*     3.4     3.6    -      -       -      -
     81D  ARG*     2.7    73.9    +      -       +      +
     83D  SER*     4.0    21.0    -      -       -      +
      6F    C      3.7    29.7    +      -       -      +
      7F    G      3.3    45.6    +      -       -      +
----------------------------------------------------------
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Residues in contact with ILE 71 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     48D  ILE*     3.6    29.2    -      -       +      -
     49D  LYS*     4.3    24.0    -      -       +      -
     53D  ALA*     4.8     5.2    -      -       +      -
     69D  ILE*     4.0    12.0    +      -       +      +
     70D  GLN*     1.3    79.5    -      -       -      +
     72D  VAL*     1.3    62.8    +      -       -      +
     73D  LYS      4.1     1.8    +      -       -      +
     78D  TYR*     3.8    28.7    -      -       +      -
     79D  GLU      3.4     5.2    -      -       -      +
     80D  LEU*     3.8    23.3    -      -       +      -
      8F    G      4.4     6.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with VAL 72 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     70D  GLN*     4.7    15.5    -      -       +      +
     71D  ILE*     1.3    79.1    -      -       -      +
     73D  LYS*     1.3    70.4    +      -       -      +
     74D  GLY      3.6     0.9    +      -       -      +
     77D  ARG*     4.5     1.0    +      -       -      +
     78D  TYR*     3.6     1.4    -      -       -      -
     79D  GLU*     2.7    53.3    +      -       +      +
     81D  ARG*     4.0    25.6    -      -       +      +
      7F    G      4.7     0.4    -      -       +      -
      8F    G      4.2    36.1    -      -       +      +
      9F    A      4.0    26.9    -      -       +      +
----------------------------------------------------------
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Residues in contact with LYS 73 (chain D). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     45D  GLU*     4.4     3.4    +      -       -      -
     71D  ILE*     4.1     1.8    +      -       -      +
     72D  VAL*     1.3    80.9    -      -       -      +
     74D  GLY*     1.3    71.5    +      -       -      +
     77D  ARG      4.3     2.5    -      -       -      +
     78D  TYR*     2.5    51.2    +      -       +      -
      9F    A      4.4    15.1    +      -       -      +
----------------------------------------------------------
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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