Table 1. Bacterial strains and plasmids used in this study.

Strains and plasmids	Characteristics	Reference
Strains
E. coli DH5a	Cloning strain
V. atypica OK5	Wild type	[9]
V. parvula PK1910	Wild type	This work
V. parvula OK1	Wild type	This work
V. atypica OK2	Wild type	This work
V. rogosae OK3	Wild type	This work
V. dispar OK4	Wild type	This work
V. atypica OK6	Wild type	This work
V. atypica OK7-1	Wild type	This work
V. dispar OK7-2	Wild type	This work
V. dispar OK8	Wild type	This work
V. dispar OK9	Wild type	This work
V. dispar OK10	Wild type	This work
V. rogosae OK11	Wild type	This work
S. gordonii DL1	Wild type	[10]
Δhsa	DL1 hsa deletion mutant	This work
ΔsrtA	DL1 srtA deletion mutant	[11]
ΔsspA/B	DL1 sspA/B deletion mutant	This work
S. gordonii-hsa::luc	DL1 hsa promoter luciferase reporter	This work
Δhsa-hsa::luc	hsa promoter luciferase reporter in hsa mutant	This work
Plasmids
pFW5-hsa p-luc	Suicide vector pFW5::luc of S. gordonii with hsa promoter region; Specr	This work
pAS8741	Plasmid containing the complete hsa gene	[12]
pAS8748	Deletion of SR1 and NR2 regions in Hsa	[12]
pAS8744	Deletion of SR1 region in Hsa	[12]
pAS8746	Deletion of NR2 region in Hsa	[12]
pAS8749	Deletion of part of SR2 region in Hsa	[12]
pAS8375	Deletion of part of SR2 region in Hsa	[12]
pAS8165	Deletion of SR2 region in Hsa	[12]
pAS8164	Deletion of SR1 and SR2 regions in Hsa	[12]