TABLE 6.

Proteins with known functions that exhibit sequence similarity to AfpA^a

Organism	Accession no.	Position	% Identity/% similarity	E value	Function of the protein (reference[s])
Synechococcus sp.	U48223	2-445	21/38	2.0e−10	S-layer protein; required for bacterial motility in water (7)
Pseudomonas syringae	AJ001086	63-445	27/42	2.9e−08	INP InaV (57)b
Caulobacter crescentus	AF062345	8-251	28/42	1.4e−07	S-layer protein; serves as protector of cells from external influences (22, 26)
Rhizobium leguminosarum	X17285	135-267	28/50	1.7e−07	Nodulation protein O (13, 19)b
Rhizobium meliloti	Y08703	124-293	32/49	5.1e−07	Calcium-binding protein, directing the biosynthesis of galactoglucan (49)
Pseudomonas syringae	AF013159	7-346	26/41	7.3e−07	INP (37)b
Neisseria meningitidis	L06302	128-318	30/45	9.1e−07	RTX, iron-regulated protein FrpA; possible role in the pathogenesis of meningococcal infection (63)
Pseudomonas	X04501	3-456	24/39	1.6e−06	INP (69)b
fluorescens
Xanthomonas campestris	X52970	8-459	24/38	1.7e−06	INP (78)b
Wolinella recta	AF010143	107-442	26/43	2.4e−06	S-layer protein; plays a possible role in the pathogenesis of adult periodontal infection (68)
Phormidium uncinatum	AF002131	129-267	31/45	3.3e−06	Oscillin, essential for gliding motility (36)b
Pseudomonas brassicacearum	AF286062	133-250	33/48	6.6e−06	LipA; lipase-like protein involved in root infection and colonization (9)b
Wolinella recta	AF035192	132-449	26/39	7.6e−06	S-layer-RTX protein; major virulence factor of periodontal pathogen (8)

^aResults of searching by WU-Blast2 are presented in ascending order by E value.

^bSecreted protein.