Table 1. Intracellular proteins that function as cell surface adhesins in bacteria.

Protein	Species	UniProt ID	Extracellular function	References
6-phosphofructokinase	Lactococcus lactis	P0DOB5	yeast invertase	[54]
	Streptococcus oralis	E6KMA1	plasminogen	[78]
Aaa autolysin	Staphylococcus aureus	Q2YVT4	fibronectin	[37]
Aae autolysin	Staphylococcus epidermis	Q8CPQ1	fibrinogen, fibronectin, vitronectin	[79]
Aspartase	Haemophilus influenzae	P44324	plasminogen	[80]
Atla autolysin	Streptococcus mutans	U3SW74	fibronectin	[39]
AtlC autolysin	Staphylococcus caprae	Q9AIS0	fibronectin	[40]
Bile salt hydrolase	Bifidobacterium lactis	Q9KK62	plasminogen	[81]
C5a peptidase	Streptococcus agalactiae	Q8E4T9	fibronectin	[82]
DNA-directed RNA polymerase beta subunit	Streptococcus gordonii	A0EKJ1	Muc7	[18]
DnaK	Bifidobacterium	Q8G6W1	plasminogen	[81]
	Lactococcus lactis	P0A3J0	yeast invertase	[54]
	Mycobacterium tuberculosis	A0A0H3L5C8	plasminogen	[75]
	Neisseria meningitidis	A9M296	plasminogen	[20]
EF-Tu	Lactobacillus johnsonii	Q74JU6	cells, mucins	[51]
	Mycoplasma pneumoniae	P23568	fibronectin, epithelial cells, plasminogen, heparin, fetuin, actin, fibrinogen, vitronectin, laminin	[36],[64]
	Pseudonomas aeruginosa	P09591	plasminogen	[43]
	Streptococcus gordonii	A8AWA0	Muc7	[18]
Elongation factor G	Streptococcus gordonii	A8AUR6	Muc7	[18]
Endopeptidase O	Streptococcus pneumoniae	Q8DNW9	plasminogen, fibronectin	[83]
Enolase	Aeromonas hydrophila	Q8GE63	plasminogen	[22]
	Bacillus anthracis	D8H2L1	plasminogen, laminin	[8]
	Bifidobacterium lactis	B7GTK2	plasminogen	[11]
	Borrelia burgdorferi	B7J1R2	plasminogen	[16]
	Lactobacillus crispatus	Q5K117	plasminogen, laminin	[14]
	Lactobacillus johnsonii	Q74K78	plasminogen, laminin	[14]
	Lactobacillus plantarum	Q88YH3	fibronectin	[23]
	Leishmania mexicana	Q3HL75	plasminogen	[13]
	Mycoplasma fermentans	C4XEI3	plasminogen	[24]
	Mycoplasma suis	F0QRW4	red blood cells	[84]
	Mycoplasma synoviae	Q4A740	plasminogen, fibronectin	[9]
	Neisseria meningitidis	E0N8L2	plasminogen	[20]
	Staphylococcus aureus	Q6GB54	plasminogen, laminin	[14],[21]
	Streptococcus canis	I7WI49	plasminogen	[17]
	Streptococcus gordonii	A8AY46	Muc7	[18]
	Streptococcus mutans	Q8DTS9	plasminogen	[12]
	Streptococcus oralis	A0A1F1EC06	plasminogen	[19]
	Streptococcus pneumoniae	Q97QS2	plasminogen	[14]
	Streptococcus pyogenes	Q1JML5	plasminogen	[14]
	Streptococcus suis	A4W2T1	fibronectin, plasminogen	[15]
Fructose 1,6-bisphosphate aldolase	Neisseria meningitidis	F0N9L0	cells	[25]
GAPDH	Bacillus anthracis	Q81X74	plasminogen	[85]
	Lactobacillus acidophilus	Q5FL51	mucin	[53]
	Lactobacillus plantarum	F9UM10	mucin, Caco-2 cells	[50]
	Lactococcus lactis	P52987	yeast invertase	[54]
	Mycoplasma genitalium	P47543	mucin	[41]
	Staphylococcus aureus	Q6GIL8	transferrin	[49]
	Streptococcus agalactiae	Q9ALW2	plasminogen	[86]
	Streptococcus oralis	A0A0F2E7M6	plasminogen	[78]
	Streptococcus pneumoniae	A0A0H2US80	plasminogen	[87]
	Streptococcus pyogenes	P68777	uPAR/CD87 receptor on human cells, plasminogen	[33],[88]
	Streptococcus suis	Q3Y454	plasminogen	[89]
Glucose 6-phosphate isomerase	Lactobacillus crispatus	K1MKZ7	laminin, collagen	[90]
Glutamine synthetase	Lactobacillus crispatus	D5GYN9	fibronectin, laminin, collagen I, plasminogen	[90]
	Mycobacterium tuberculosis	A0A0H3LHU4	plasminogen, fibronectin	[91]
	Bifidobacterium lactis	C2GUH0	plasminogen	[81]
Hsp60	Chlamydiae pneumoniae	P31681	adhesin	[29]
	Lactococcus lactis	P37282	yeast invertase	[54]
	Legionella pneumophila	Q5X762	adhesin	[30]
	Clostridium difficile	Q9KKF0	adhesin	[27]
	Haemophilus ducreyi	P31294	glycosphinngolipids	[34],[35]
	Helicobacter pylori	Q8RNU2	adhesin	[28]
	Lactobacillus johnsonii	F7SCR2	adhesin	[52]
	Listeria	Q8KP52	adhesin	[32]
	Salmonella typhimurium	P0A1D3	mucus	[42]
Hsp65/Cpn60.2/GroEL2	Mycobacterium tuberculosis	A0A0H3LCC3	CD43 on macrophage surface	[92]
Leucyl aminopeptidase	Mycoplasma hyopneumoniae	Q4A9M4	heparin	[93]
Malate synthase	Mycobacterium tuberculosis	P9WK17	fibronectin, laminin, epithelial cells	[38]
Glutamyl aminopeptidase	Mycoplasma hyopneumoniae	Q4AAK4	plasminogen, heparin	[47]
Leucyl aminopeptidase	Mycoplasma hyopneumoniae	Q4A9M4	plasminogen, heparin, DNA	[48]
Ornithine carbamoyltransferase	Staphylococcus epidermidis	P0C0N1	fibronectin	[94]
Peroxiredoxin	Neisseria meningitidis	A0A125WDU3	plasminogen	[20]
	Streptococcus agalactiae	E7S2A7	heme	[95]
Phosphoglycerate kinase	Streptococcus oralis	A0A0G7HBY7	plasminogen	[77]
	Streptococcus agalactiae	Q8DXT0	plasminogen, actin	[83],[96]
	Streptococcus pneumoniae	Q8DQX8	plasminogen	[97]
Phosphoglycerate mutase	Bifidobacterium lactis	P59159	plasminogen	[81]
	Streptococcus oralis	E6IYJ0	plasminogen	[78]
Pyruvate dehydrogenase	Mycoplasma pneumoniae	P75391	fibrinogen	[36]
Pyruvate kinase	Lactococcus lactis	Q07637	yeast invertase	[54]
Superoxide dismutase	Mycobacterium avium	P53647	adhesin	[98]
Triose phosphate isomerase	Streptococcus oralis	E6J203	plasminogen	[78]