Mr Ten Divergence Betwixt Type One In Addition To Type Two Restriction Enzymes

Restriction enzymes are nucleases too equally they cutting at an internal set of deoxyribonucleic acid (and non an end)  they are known equally endonucleases. They are also known equally molecular knives, molecular scissors, restriction enzymes or molecular scalpels.

The sequence recognised past times the restriction enzyme to cutting the deoxyribonucleic acid is called restriction site, recognition site or restriction endonuclease site. The recognition site consists of 4-8 base of operations pairs. 


Types of restriction enzymes : The restriction endonucleases are grouped into iii types.
  1. Type I Restriction Endonuclease:
  2. Type II Restriction Endonuclease
  3. Type III Restriction Endonuclease
Type I Restriction Endonuclease vs Type II Restriction Endonuclease

Type I Restriction  Endonuclease Type II Restriction Endonuclease
These are close complex. The enzyme is made upwardly of iii non identical subunits. These are simplest.The enzyme is made upwardly of 2 identical sub units.
Molecular weight is 4,00,000 daltons. Molecular weight ranges from 20,000 to 1,00,000  daltons.
The site of cutting  is 1,000 nucleotides away from the recognition site. The site of cutting is inward the same recognition site.
The sequence of cutting is non specific. The sequence of cutting is specific.
Restriction enzymes are nucleases too equally they cutting at an internal set of deoxyribonucleic acid  MR X Difference betwixt Type I too Type II Restriction Enzymes
The enzymes protect DNAs past times methylation. No methylation activity.
ATP, Mg2+ too adenosyl methionine are required for activation. Mg2+ lonely is required for activated
The enzyme has both endonuclease action too methylase activity. Restriction action alone.
Examples: EcoK, EcoB Examples: Hind II, EcoRI, 

Type II restriction endonucleases are close of import tools inward factor cloning.

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