TABLE 2.

Summary of immunofluorescence staining of whole bacterial cells

Alab49 construct	Growth phase	E64 cysteine protease inhibitor	Antiserum	Immunofluorescence staining scorea
WT	Logarithmic	Absent	Preimmune	0
	Logarithmic	Absent	Anti-rFbaA	3+
	Stationary	Absent	Anti-rFbaA	0
	Stationary	Present	Anti-rFbaA	3+
ΔfbaA	Stationary	Present	Anti-rFbaA	0
ΔfbaAΔpam	Stationary	Present	Anti-rFbaA	0
Δmga	Stationary	Present	Anti-rFbaA	0
ΔspeB	Stationary	Absent	Anti-rFbaA	3+

^a0, no staining; 3+, strong staining.