Contacts of the strand formed by residues 73 - 78 (chain 3) in PDB entry 1ZBE


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 LEU 73 (chain 3).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     673  ARG*     4.4     6.8    +      -       -      -
     713  THR*     3.7    17.5    -      -       +      +
     723  ARG*     1.3    73.8    -      -       -      +
     743  LEU*     1.3    62.9    +      -       -      +
     753  ALA*     3.2    29.8    -      -       -      +
     763  LYS*     4.2    20.9    -      -       +      -
    1333  PRO*     6.1     0.4    -      -       +      +
    1343  PRO      4.8     2.2    -      -       -      +
    1353  ASP*     4.1    37.1    +      -       +      +
    1863  CYS*     4.1    18.8    -      -       +      -
    1873  VAL      3.7     7.6    -      -       -      +
    1883  TYR*     4.1    12.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with LEU 74 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     643  VAL*     3.2    34.7    -      -       +      +
     653  VAL      3.8     9.6    -      -       -      +
     663  THR*     4.5     2.7    -      -       +      -
     673  ARG*     3.5    35.8    -      -       +      +
     723  ARG      3.1     5.3    +      -       -      +
     733  LEU*     1.3    74.2    -      -       -      +
     753  ALA*     1.3    64.0    +      -       -      +
    1213  TYR*     3.6    28.3    -      -       +      -
    1873  VAL*     2.9    21.6    +      -       +      +
    1883  TYR      4.1     4.3    -      -       -      +
    1893  GLN*     3.6    32.8    -      -       +      +
    2003  LEU*     5.0     1.1    -      -       +      -
----------------------------------------------------------
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Residues in contact with ALA 75 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     573  PHE*     3.8    31.9    -      -       +      -
     643  VAL*     3.9    11.0    -      -       +      -
     733  LEU*     3.2    12.6    -      -       -      +
     743  LEU*     1.3    82.3    -      -       -      +
     763  LYS*     1.3    61.7    +      -       -      +
     773  PHE*     5.2     1.8    -      -       +      -
     853  HIS*     6.0     0.7    -      -       +      -
    1853  VAL      4.7     0.2    -      -       -      -
    1873  VAL*     2.9    38.6    +      -       +      -
----------------------------------------------------------
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Residues in contact with LYS 76 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     733  LEU*     4.2    17.9    -      -       +      +
     753  ALA*     1.3    78.1    -      -       -      +
     773  PHE*     1.3    70.9    +      -       -      +
     783  ASP*     5.9     0.2    -      -       -      -
     853  HIS*     3.6    15.3    +      -       -      -
    1323  THR*     5.8     1.1    -      -       -      -
    1333  PRO*     3.7    42.6    -      -       +      +
    1843  TRP*     4.8     8.3    -      -       +      +
    1853  VAL      3.3    10.8    -      -       -      +
    1863  CYS*     4.1    10.3    -      -       -      -
----------------------------------------------------------
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Residues in contact with PHE 77 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     553  LEU*     3.7    27.8    -      -       +      -
     573  PHE*     4.6    19.3    -      +       -      -
     753  ALA      5.2     0.7    -      -       -      -
     763  LYS*     1.3    83.9    -      -       -      +
     783  ASP*     1.3    78.3    +      -       -      +
     793  VAL*     5.4     1.6    -      -       -      -
     833  ALA*     5.0     0.7    -      -       +      -
     853  HIS*     3.2    35.4    -      +       +      -
     863  MET*     4.9    12.8    -      -       +      -
    1073  LEU*     3.9    15.0    -      -       +      -
    1093  PHE*     6.4     0.4    -      +       -      -
    1603  ILE*     5.2     4.5    -      -       +      -
    1843  TRP*     3.2     6.8    -      -       -      -
    1853  VAL*     2.9    69.7    +      -       +      -
    1873  VAL*     4.9     9.2    -      -       +      -
    2023  VAL*     5.6     1.6    -      -       +      -
----------------------------------------------------------
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Residues in contact with ASP 78 (chain 3). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     763  LYS*     5.9     0.3    -      -       -      -
     773  PHE*     1.3    88.8    -      -       -      +
     793  VAL*     1.3    60.0    +      -       -      +
     803  SER*     2.9    16.3    +      -       -      -
     833  ALA*     3.5    18.1    -      -       +      +
     853  HIS*     5.0     1.4    -      -       -      -
     863  MET*     5.1     0.7    -      -       -      +
    1803  ASN*     3.6    29.5    +      -       -      +
    1833  GLY      3.7     4.9    -      -       -      -
    1843  TRP*     3.1    22.4    +      -       -      -
----------------------------------------------------------
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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