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Qualifier GO ID GO term name Reference ECO ID ECO term name with/from Aspect Extension Notes Status



positive regulation of protein secretion



Fig. 2.A "To characterize the role of spa32, we constructed a S. flexneri 5a strain, MJ321, in which the spa32 gene has been inactivated with a nonpolar cassette... The newly constructed strain was unable to bind CR and was thus white on agar plates at 37°C, suggesting that the spa32 gene product is required for the secretion of Ipa invasins. To test this, the proteins present in the culture supernatants of M90T (wild-type) and MJ321 strains induced by CR were analyzed by SDS-PAGE and immunoblotting. IpaA (70 kDa), IpaB (62 kDa), IpaC (41 kDa), and IpaD (39 kDa) were secreted by the wild-type strain but not by MJ321 (Fig. ​(Fig.2A).2A)."

Missing: reference



extracellular region



Figure 3 shows that Spa32 is found in the supernatant of cell culture.

Missing: reference