Table 1. Annotation of the B. rhizoxinica T3SS gene cluster.

ORF	Gene	Proposed function	R. solanacearum homolog	Percent identity (BLASTP)
1	sctC	Outer membrane ring (secretin)	hrcC	41
2	hrpB	Regulator	hrpB	37
3		Unknown		—
4		Unknown		—
5	sctT	Inner membrane protein	hrcT	43
6	sctO	Unknown	hrpD	—
7	sctN	ATPase	hrcN	71
8	sctL	ATPase-associated regulator	hrpF	31
9	sctK	Unknown	hrpH	—
10	sctJ	Inner membrane ring (lipoprotein)	hrcJ	58
11	sctI	Unknown	hrpJ	—
12	sctG	Unknown	hrpK	—
13	sctU	Inner membrane protein	hrcU	47
14	sctV	Inner membrane protein	hrcV	59
15	hpaP	Unknown	hpaP	35
16	sctQ	Putative cytosolic ring	hrcQ	29
17	sctR	Inner membrane protein	hrcR	63
18	sctS	Inner membrane protein	hrcS	59
19		Pilus assembly	hrpV	—
20	sctD	Inner membrane ring	hrpW	26
21	sctE	Pilus assembly	hrpX	—
22	sctF	Pilus	hrpY	—
23	hpaB	Unknown	hpaB	56