Contacts of the strand formed by residues 306 - 312 (chain A) in PDB entry 1ZEB


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 PHE 306 (chain A).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     34A  LYS      3.8     3.0    +      -       -      +
     35A  ASN*     3.0    49.6    +      -       +      -
     36A  LEU*     2.8    31.1    +      -       -      +
     37A  ILE*     3.7    22.0    -      -       +      -
    141A  LYS*     4.0     9.4    -      -       -      +
    142A  SER      3.0    15.3    -      -       -      +
    296A  LEU*     3.6    31.0    -      -       +      -
    299A  LEU*     3.8    39.3    -      -       +      +
    300A  SER*     4.2    16.2    -      -       -      -
    302A  ASN      5.9     0.2    -      -       -      -
    305A  GLY*     1.3    75.2    -      -       -      +
    307A  PHE*     1.3    56.3    +      -       -      +
    308A  LEU*     3.9    15.7    -      -       +      -
    345A  THR*     4.1    15.7    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 307 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  LEU*     3.2    29.2    -      -       +      -
     38A  ILE*     3.9    19.3    -      -       +      -
    100A  LEU*     4.5    11.2    -      -       +      -
    132A  VAL*     3.6    24.5    -      -       +      -
    133A  MET*     3.4    37.9    -      -       +      -
    136A  ALA*     3.8    20.2    -      -       +      -
    141A  LYS*     4.6     0.8    -      -       +      +
    142A  SER      2.9     5.5    +      -       -      +
    143A  VAL*     3.2     9.0    -      -       +      +
    144A  GLY      3.0    23.9    +      -       -      -
    159A  THR*     4.7     2.0    -      -       +      -
    299A  LEU*     4.2     1.9    -      -       -      +
    306A  PHE*     1.3    75.4    -      -       -      +
    308A  LEU*     1.3    74.9    +      -       -      +
    309A  PHE*     4.0    13.0    -      -       +      -
    462A  MET*     3.5    21.3    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 308 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     36A  LEU      2.7    10.8    +      -       -      +
     37A  ILE*     3.2    17.7    -      -       +      +
     38A  ILE*     2.9    26.9    +      -       -      +
     39A  PHE*     5.7     0.7    -      -       +      -
    144A  GLY      3.6     8.5    -      -       -      +
    146A  VAL*     3.6    22.4    -      -       +      -
    292A  THR*     4.6     7.6    -      -       -      +
    295A  ALA*     4.0     3.1    -      -       +      -
    296A  LEU*     3.5    33.4    -      -       +      -
    299A  LEU*     3.9    15.9    -      -       +      -
    306A  PHE*     3.9    14.6    -      -       +      -
    307A  PHE*     1.3    79.3    -      -       -      +
    309A  PHE*     1.3    75.1    +      -       -      +
    310A  VAL*     3.5    21.1    -      -       +      -
    341A  ALA*     5.7     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 309 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     38A  ILE*     3.5    20.6    -      -       +      -
     40A  LEU*     4.2    16.4    -      -       +      -
     99A  TYR*     4.3     6.1    -      +       -      -
    100A  LEU*     4.1     9.6    -      -       +      -
    144A  GLY      2.9    13.7    +      -       -      +
    145A  VAL*     4.0    14.4    -      -       +      -
    146A  VAL*     2.8    41.3    +      -       -      +
    147A  THR*     4.4     0.9    -      -       -      -
    155A  SER*     3.7    16.4    -      -       -      -
    156A  PRO*     3.6    36.3    -      -       +      -
    159A  THR*     4.0    17.5    -      -       +      -
    307A  PHE*     4.0    13.4    -      -       +      -
    308A  LEU*     1.3    74.5    -      -       -      +
    310A  VAL*     1.3    57.4    +      -       -      +
    311A  GLU*     3.6    31.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with VAL 310 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     37A  ILE*     4.5     1.3    -      -       +      -
     38A  ILE      3.0     7.3    +      -       -      -
     39A  PHE*     3.1    32.5    -      -       +      -
     40A  LEU*     2.8    31.2    +      -       -      +
    146A  VAL*     3.2     5.8    -      -       +      -
    288A  LEU*     4.0    17.9    -      -       +      -
    292A  THR*     3.5    35.2    -      -       +      -
    308A  LEU*     3.5    35.9    -      -       +      -
    309A  PHE*     1.3    74.0    -      -       -      +
    311A  GLU*     1.3    56.9    +      -       -      +
    334A  PHE*     3.9     3.6    -      -       +      -
    337A  ALA*     4.6     3.8    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 311 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  LEU*     3.1    19.2    -      -       +      +
     42A  ASP*     3.2    11.1    -      -       -      +
    146A  VAL      2.8     8.3    +      -       -      -
    147A  THR*     2.6    25.2    +      -       -      +
    148A  THR      3.5    15.9    +      -       -      -
    149A  THR*     3.5     2.6    +      -       -      -
    155A  SER*     3.0    12.2    +      -       -      -
    156A  PRO*     3.4    18.4    -      -       -      +
    288A  LEU*     3.4    15.9    -      -       -      +
    309A  PHE*     3.6    17.7    -      -       +      -
    310A  VAL*     1.3    74.8    -      -       -      +
    312A  GLY*     1.3    58.6    +      -       -      +
    313A  GLY*     3.0    20.1    +      -       -      +
    903A   MG      2.1    29.6    -      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with GLY 312 (chain A). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     40A  LEU      2.9     9.4    +      -       -      -
     42A  ASP      3.0    20.4    +      -       -      -
    148A  THR*     4.0     2.0    -      -       -      -
    288A  LEU*     3.7    14.8    -      -       -      -
    311A  GLU*     1.3    68.6    -      -       -      +
    313A  GLY*     1.3    62.1    +      -       -      -
    314A  ARG      3.3     3.8    +      -       -      -
    315A  ILE*     3.4    18.3    +      -       -      +
    330A  GLU*     5.2     3.8    -      -       -      -
    334A  PHE*     3.4    23.4    -      -       -      -
----------------------------------------------------------
 Back to top of page


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