in the presence of high concentrations of the nonspecific polymer polyethylene glycol ( peg ) , intermolecular cohesive-end ligation with the dna ligase from escherichia coli was stimulated by high salt concentrations : 200 mm nacl or 300 mm kcl in 10 % ( w/v ) peg 6000 solutions , and 100-200 mm nacl or 150-300 mm kcl in 15 % peg 6000 solutions .
C0032483
polyethylene
C0030775
peg 6000