1. Find the following data from its header file:

                           PDB ID 1BE2
                           Experimental method NMR, 10 Structures
                           Organism (give scientific name) and organ where this protein come from
                           Hordeum Vulgare                                  Seeds
                           Location of its four helixs (i.e. Ala12 - Gly20)
                          GLY4 - GLY19    GLU26 - GLN37    SER41 - ARG56    LEU63 - CYS73
                           Positions of its four disulfide bonds ( i.e. Cys3 - Cys24)
                          CYS3-CYS50   CYS13-CYS27   CYS28-CYS73   CYS48-CYS87
                           Give the chemical formula of the ligand
                          C16 H32 O2

2. Show two different views of this protein by Rasmol, one of them must show its ligand in
    spacefill display.

3. Show protein in cartoon with its four disulfide bonds in yellow color.

4. Measure the bond length of each disulfide bond ( -S-S- ) and calculate the average bond length
    of disulfide bond.
the average bond length=2.01angstrom

5. Show residues in protein that are within 3.0 angstrom of carboxylic group (COO-) of ligand.
CYS, LEU, VAL, TRY, ILE, ILE