TABLE 2.

Comparison of IS1409 with some insertion sequences of the ISL3 family

IS element	Origin	Accession no.	Length of TnpA (aa)	Identity/similarity (%)	Length of IRc (bp)	Target duplication (bp)	Reference
IS1409	Arthrobacter sp. strain TM1	AF042490	435		25	8	This work
IS1096a	Mycobacterium smegmatis	M76495	413	77/87	25	8	3
ISB11	Brevibacterium linens	AF052055	436	69/79	25	8	Unpublished data
IS1411	Pseudomonas putida	M57500	433	60/76	24	8	12
IS13869	Brevibacterium lactofermentum	Z66534	436	42/57	26	8	4
IS31831	Corynebacterium glutamicum	D17429	436	42/56	24	8	36
IS2001	Bifidobacterium lactis	AJ243948	442	43/55	26	?d	Unpublished data
IS204	Nocardia asteroides	U10634	377b	30/47	23	8	43
ISPs1	Pseudomonas stutzeri	AJ012352	425	27/48	24	8	2
ISAe1	Alcaligenes eutrophus	M86608	408	27/41	24	8	15
IS1165	Leuconosioc mesenteroides	X62617	412	23/38	24	8 or 3	11
IS1001	Bordetella parapertussis	X66858	406	22/37	28	6 or 8	34
ISL3	Lactobacillus delbrueckii	X79114	434	20/37	38	8	8
IS1181	Staphylococcus aureus	L14544	439	19/38	23	8	6

^aIS1096 is the only one of this group of IS elements which additionally contains a putative resolvase gene 

^bIS204 may contain a frameshift sequencing error or represent a nonfunctional IS element, as the conserved C-terminal domain of the transposase displayed in Fig. 1 occurs in a different reading frame from the tnpA gene. 

^cIR, inverted repeat. 

^d?, data not available.