TABLE 2.

RPS-mediated coaggregations of streptococci^a

Subject	HOMD ID	Defined recognition motifb				Undefined recognition motifc
		RS ID no.	RPS type	No. of coaggregations		RS ID no.	RPS type	No. of coaggregations
				Intrageneric	Intergeneric			Intrageneric	Intergeneric
1	Streptococcus gordonii HOT 622	2	1G	0	6		None
	Streptococcus infantis HOT 638		None			4	4(w)	0	0
	Streptococcus mitis HOT 677	9	1Gn	1	4	5	3	0	0
		10	1Gn	1	4	6	3	0	1
		12	1Gn	1	4	7	4	0	1
	Streptococcus salivarius/vestibularis		None			22	3	5	2
	Streptococcus sanguinis HOT 758	26	3G	1	5		None
	Streptococcus sp. strain HOT 064	27	4Gn	3	5		None
	Streptococcus tigurinus HOT 071	29	H1	0	0		None
2	Streptococcus australis HOT 073	2	3G(w)	1	2	5	3(w)	0	0
		3	3G	1	2
		4	3G	0	2
		6	3G	1	2
	Streptococcus dentisani HOT 398		None			23	3(w)	0	0
	Streptococcus infantis HOT 638		None			10	4	0	0
	Streptococcus mitis HOT 677	13	3Gn	1	2	11	4(w)	0	1
		19	3Gn	0	2
	Streptococcus salivarius/vestibularis		None			32	3	5	0
						33	3	6	0
						34	3	4	0
						35	3(w)	5	0
	Streptococcus sanguinis HOT 758	40	1Gn	0	7
	Streptococcus sp. strain HOT 061		None			42	3(w)	0	0
						43	3(w)	0	0
	Streptococcus sp. strain HOT 431		None			45	4	0	0

^aEach anti-RPS-reactive representative strain (RS; w, weak reactivity) was characterized for a recognition motif using coaggregation test strains of A. naeslundii and S. gordonii and then screened for coaggregation with streptococcal and nonstreptococcal coisolates. Only RPS-dependent coaggregations (the partner bears the protein adhesin) are listed.

^bAntibody-reactive strains that coaggregate with defined test strains and can therefore be assigned a recognition motif. In the RPS designations, the number indicates the serotype and G or Gn indicates the receptor motif.

^cAntibody-reactive strains that do not coaggregate with test strains and therefore cannot be assigned a recognition motif. In the RPS designations, the number indicates the serotype.