Table 1.

Overview of previously characterised AICEs and several element-specific functions

AICE	Strain	Referencea	Size (kb)	Element specific functionsb
				tRNA	Replication	Conjugation	Pock formation	CMAc
pMEA100	A. mediterranei	Moretti et al. (1985)	23.3	Phe	+	+	+	+
pMEA300	A. methanolica	Vrijbloed et al. (1994)	13.3	Ile	+	+	+	+
pSE211	Sac. erythraea	Brown et al. (1988b)	17.2	Phe	+	+	+	+
pSE101	Sac. erythraea	Brown et al. (1988a)	10.9	Thr	+	−	−	−
pMR2	M. rosaria	Hosted Jr et al. (2005)	11.2	Phe	+	ndd	nd	nd
pSAM2	S. ambofaciens	Pernodet et al. (1984)	10.9	Pro	+	+	+	+
SLP1	S. coelicolor	Bibb et al. (1981)	17.3	Tyr	+	+	+	+
pSG1	S. griseus	Cohen et al. (1985)	16.9	Ser	+	nd	nd	nd
pIJ110	S. parvulus	Hopwood et al. (1984)	13.6	nd	+	+	+	+
pIJ408	S. glaucescens	Hopwood et al. (1984)	15.05	nd	+	+	+	+

^aReference to paper first describing the element

^bSee text for references to element-specific functions

^cCMA, chromosome mobilising ability

^dnd, not determined