Homework 3

  
Q1:
 (a)ID : 1wrp
   Author : J.Joachimiak , Z.Otwinowski , C.L.Lawson , P.B.Sigler
   Resolution : 2.2 angstroms
   Residue numbers : 108



 (b) 
      Repressor with residue 77 in yellow.

    
     Cofactors bind to repressor and it is in yellow.
     * Because the present of cofactors, the shape of repressor has been changed.

    
     Whole complex includes of repressor, cofactor and DNA.
     And four cofactors are in red.



Q2:
 (a)  TATAGTAGAGTGCTTCTATCAT ~~~~ Chain E
      AATGATAGAAGCACTCTACTAT ~~~~ Chain F

 
 (b)
      Repressor bind to DNA.


The side chain and corresponding DNA bases : Gln9d--A7f, Asn11d--T17f, Arg13d--G4f


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