pBR322 is a commonly used plasmid cloning vector in E. coli. The molecule is double-stranded circle, 4361 base pairs in length, and has a low copy number. pBR322 carries contains the genes for resistance to ampicillin and tetracycline, and can be amplified with chloramphenicol. The molecular weight of pBR322 is 2.83×106 daltons.
(SKU: NM001)