Fig. 1From: An engineered food-grade Lactococcus lactis strain for production and delivery of heat-labile enterotoxin B subunit to mucosal sitesThe schematic maps of pNZ8149-SP-ltB designed using software Omiga 2.0. Pnis, nisA promoter; SP, signal sequence of usp45 gene; ltB, ltB gene coding region; T, terminator; repA and repC, replication gene A and C; lacF, lacF gene as selection signatureBack to article page