the DNA sites recognized by restriction enzymes are palindro

the DNA sites recognized by restriction enzymes are palindromic whereas the enzymes almost always function as homodimers (i.e., two copies of the same protein in a dimer). Explain why this correlation makes sense and could be beneficial to proper restriction enzyme function.

Solution

Answer:

Restriction enzymes -II (R.E-II) are the major important enzymes that used in the molecular biology experiments. R.E participate in the cleavage of the DNA sequence. These restriction enzymes cleaves DNA sequences of 6 to 8 base pairs. The Restriction enzymes that cleave DNA are Homo dimers, these homodimers are contain two chains of proteins (Two subunits are identical) arranged in opposite directions and are in symmentry. One half of the recognisation sequence of DNA is bound by each protein subunit. Two DNA strands are cleaved at a same time by two protein subunits of Restriction enzymes (HindIII, EcoRI,NotI,BamHI,PacI.).