Table 1. Exogenous AI-2 Affected the Protein Expression Difference of E. faecium 8-3.

protein ID	description	abbreviations	protein expression	P value	gene expression
A0A076GPG6	5-methylthioadenosine/S-adenosylhomocysteine nucleosidase	mtnN	2.745	0.020	1.128
A0A076GYB9	TetR family transcriptional regulator	M395_12005	2.547	0.022	1.323
A0A0M2AHZ7	GNAT family acetyltransferase	SIE_01971	2.076	0.032	1.266
A0A0M1XDF5	CCA-adding enzyme	2.176	0.046	1.179
T2NMI9	50S ribosomal protein L31 type B	rpmE2	1.930	0.047	1.328
A0A0M1Y077	V-type ATP synthase subunit E	OI7_03719	1.526	0.032	1.325
A0A076GS02	DNA-directed RNA polymerase subunit omega	rpoZ	1.704	0.041	1.077
C9B7M6	foldase protein	prsA	1.746	0.049	1.524
A0A0M1XBR7	energy-coupling factor transporter ATP-binding protein EcfA	ecfA	0.597	0.025	0.884
A0A076GMR1	50S ribosomal protein L20	rplT	0.658	0.013	0.908
A0A0M1XE95	Maf-like protein	HMPREF1359_00059	0.578	0.045	0.931
A0A0M1X622	FAD dependent oxidoreductase	HMPREF1359_03046	0.420	0.048	0.897
A0A076GQV1	diacylglycerol kinase	M395_06215	0.625	0.050	0.718
A0A0M1X6H4	RNA methyltransferase	HMPREF1359_02800	0.480	0.044	0.695
A0A0M1X711	uncharacterized protein		1.914	0.016	1.219