Contacts of the strand formed by residues 99 - 103 (chain 3) in PDB entry 1ZUD


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 GLN 99 (chain 3).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     533  GLY      2.8    18.1    +      -       -      +
     543  THR*     3.4    24.2    -      -       +      +
     553  LEU      3.0    27.4    +      -       -      +
     983  ILE*     1.3    69.3    -      -       -      +
    1003  LEU*     1.3    76.6    +      -       -      +
    1013  THR*     3.1    22.0    +      -       -      +
----------------------------------------------------------
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Residues in contact with LEU 100 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     483  ALA*     5.1     0.2    -      -       +      -
     553  LEU*     3.7    38.8    -      -       +      -
     573  LEU*     4.5     5.6    -      -       +      -
     883  GLN*     2.7    42.1    +      -       +      +
     913  LEU*     3.5    23.8    -      -       +      +
     923  THR*     3.3    47.1    -      -       +      +
     953  ASN      4.3     5.8    -      -       -      +
     983  ILE*     3.6    21.7    +      -       +      +
     993  GLN*     1.3    84.2    +      -       -      +
    1013  THR*     1.3    55.3    +      -       -      +
----------------------------------------------------------
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Residues in contact with THR 101 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     543  THR*     4.6     3.8    -      -       -      +
     553  LEU      2.9    14.0    +      -       -      -
     563  VAL*     3.4    18.7    -      -       +      +
     573  LEU*     2.8    36.6    +      -       -      +
     883  GLN*     4.0     1.6    -      -       -      +
     993  GLN*     3.1    25.5    +      -       -      +
    1003  LEU*     1.3    70.6    -      -       -      +
    1023  ALA*     1.3    60.0    +      -       -      +
    1033  LEU*     4.0    21.3    +      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 102 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     573  LEU*     3.7     5.2    -      -       -      -
     843  SER*     3.6    29.8    -      -       -      +
     853  GLN*     4.3     2.9    -      -       +      +
     883  GLN*     3.5    30.9    -      -       +      +
    1013  THR*     1.3    75.1    -      -       -      +
    1033  LEU*     1.3    69.1    +      -       -      +
    1043  GLN      4.0     1.4    +      -       -      -
----------------------------------------------------------
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Residues in contact with LEU 103 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     563  VAL*     3.5    29.4    -      -       +      -
     573  LEU      2.9    14.0    +      -       -      +
     583  ALA*     3.2    12.6    -      -       +      +
     593  ASP      3.1    20.8    +      -       -      -
     843  SER*     3.5     2.6    +      -       -      -
    1013  THR*     4.2    12.6    -      -       +      -
    1023  ALA*     1.3    81.6    -      -       -      +
    1043  GLN*     1.3    60.9    +      -       -      +
    1053  GLN*     3.0    26.8    +      -       +      +
    1073  LEU*     4.2    25.1    -      -       +      -
    1153  ALA*     4.6     9.2    -      -       +      -
----------------------------------------------------------
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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