TABLE 1.

Oligonucleotide probes and bead regions used in this study

Probea	Abbreviation	Sequence (5′-3′)b	Perfect match	GenBank accession no.	Bead region
Capture
S-G-Gbc-0825-a-A-14	Gbc825	TACCCGCRACACCT	Geobacter		L100-L104-01
S-S-Gbc.chap-0432-a-A-15	Gbc446	TTAGCCACAATACAC	Geobacter chapellei	U41561	L100-L125-01
S-S-Gbc.sulf-0382-a-A-15	Gbs	TTAGCTCTCAATCAT	Geobacter sulfurreducens	U13928	L100-L119-01
S-S-Gbc.met-0454-a-A-15	Gbm	TTAACCCTCAATCAC	Geobacter metallireducens	L07834	L100-L115-01
S-S-Gbc.brem-0445-a-A-15	Gbb	ATTAGCCAGCCCCAT	Geobacter bremensis	U96917	L100-L117-01
S-S-Gbc.pel-0445-a-A-15	Gbp	ATTAACCGCACACAT	Geobacter pelophilus	U96918	L100-L140-01
S-S-Dsv.des-0460-a-A-15	Dvd	TTAGCACAACGTAGT	Desulfovibrio desulfuricans	M34113	L100-L155-01
S-S-Dsv.gab-0409-a-A-15	Dvgb	TATTCGCATCCTCGG	Desulfovibrio gabonensis	U31080	L100-L147-01
S-S-Dsv.halo-0455-a-A-15	Dvh	TTCGACTCTAATGGT	Desulfovibrio halophilus	U48243	L100-L107-01
S-S-Dsv.grac-0414-a-A-22	Dvg	TATTCGACCTCAAGG	Desulfovibrio gracilis	U53464	L100-L130-01
Fluorescent beacon		TTGTGGTGGTGTGGT-Alexa-532			L100-L128-01
Chaperone
S-S-Gbc.chap-0401-a-A-15		GAGCTTTACGACCCG	G. chapellei, G. metallireducens, G. bremensis
S-S-Dsv.des-0429-a-A-15		GAGGTTTACGATCCG	D. desulfuricans

^aOligonucleotide probes are named according to the guidelines of Alm et al. (1).

^bAll capture probes were synthesized with 5′-biotin and two C₁₈ spacers. The fluorescent beacon probe was synthesized with 5′-biotin and a 3′-C₇-amino modifier.