Table 1.

Hin-mediated knotting.

	···-bla-···	···-bla-AA–TT-···	···-bla-AA–AT-···
in vivo	< 1% [6]a	N.D.	5–10% [21]
in vivo + NORb	N.D.	2–3% [25]	35% [21], 45% [25]
in vitro	N.D.	5–10% [26]	> 80% [26]

^ano Hin induction

^bnorfloxacin (to block unknotting by topoisomerase IV)