Table 1. Broad Host Range Plasmids Vary in Size, Range, and Copy Number.

replication system	size (bp)	range	incompatibility group	copy number in E. coli	notes
RK2	2226	broad	Inc.P	2
pBBR1	1524	broad	pBBR1	5
pRO1600/ColE1	1973	gammaproteobacteria	colE1-like	32	reported not to replicate in K. rhaeticus(24)
RSF1010	3678	broad	Inc.Q	5
pWV01	2178	very broad (includes Gram+)	pWV01	not measured	reported to be unstable38