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Table 1 Bacterial strains and plasmids used in this work

From: Lactococcus lactis carrying the pValac eukaryotic expression vector coding for IL-4 reduces chemically-induced intestinal inflammation by increasing the levels of IL-10-producing regulatory cells

 

Characteristics

Source

Strain

Escherichia coli TOP10

E. coli K-12-derived strain; F- mrcA Δ(mrr-hsdRMS-mcrBC) φ80lacZΔM15 ΔlacX74 nupG recA1 araD139 Δ(ara-leu)7697 galE15 galK16 rpsL(StrR) endA 1 λ

Life Technologies; Carlsbad, CA/USA

Escherichia coli TG1

E. coli K-12-derived strain; F’ [traD36 proAB + lacI q lacZΔM15] supE thi-1 Δ(lac-proAB) Δ(mcrB-hsdSM)5 (r K m K )

Lucigen; Middleton, MI/USA

Lactococcus lactis MG1363 (pValac::dts)

L. lactis MG1363 strain carrying the pValac::dts plasmid

This work

Lactococcus lactis MG1363 (pValac::dts::IL-4)

L. lactis MG1363 strain carrying the pValac::dts::IL-4 plasmid

This work

Lactococcus lactis MG1363 FnBPA+

L. lactis MG1363 strain expressing S. aureus FnBPA

[28]

Lactococcus lactis MG1363 FnBPA+ (pValac::dts)

L. lactis MG1363 FnBPA+ strain carrying the pValac::dts plasmid

This work

Lactococcus lactis MG1363 FnBPA+ (pValac::dts::IL-4)

L. lactis MG1363 FnBPA+ strain carrying the pValac::dts::IL-4 plasmid

This work

Plasmid

pUC57::IL-4

E. coli cloning vector (ApR; pMB1 ori; lacZ) containing the Il-4 ORF

GenScript; Piscataway, NJ/USA

pCR™-Blunt

E. coli cloning vector (KanR; ZeoR; pUC ori; Plac; lacZα; ccdB)

Life Technologies; Carlsbad, CA/USA

pCR™-Blunt::IL-4

pCR™-Blunt containing the IL-4 ORF

This work

pValac::dts

Eukaryotic expression vector (pCMV; CmR; repA; repC) containing the SV40 DTS

This work

pValac::dts::IL-4

pValac::dts containing the IL-4 ORF

This work

  1. Ap R ampicillin resistance gene, pMB1 ori pMB1 origin of replication, IL-4 interleukin 4, ORF open reading frame, Kan R kanamycin resistance gene, Zeo R zeocin resistance gene, pUC ori pUC origin of replication, P lac lac promoter, pCMV cytomegalovirus promoter, Cm R chloramphenicol resistance gene, repA repA origin of replication, repC repC origin of replication, SV40 Simian virus 40, DTS DNA nuclear targeting sequence, gfp green fluorescent protein