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Table 2 Strains and plasmids used in this study

From: Improved the expression level of active transglutaminase by directional increasing copy of mtg gene in Pichia pastoris

Strains

Genotype

References

E. coli TOP10

F-mcrAΔ (mrr-hsdRMS-mcrBC) φ80 lacZΔM15 ΔlacX74 recA1 araΔ139 Δ (ara-leu)7697 galUgalKrpsL (StrR) endA1 nupG. used for vector sub-cloning

Invitrogen

Pichia pastoris GS115

his4,host strain

Invitrogen

GS115 (pro)

The pro-peptide of MTG was integrated into his4 site of Pichia pastoris GS115

This study

GS115(pro/rDNA-mtg)

The mature sequence of MTGwas integrated into non-coding rDNA site ofGS115 (pro)

This study

Plasmids

Description

Reference

pPICZα-B

Containing AOX1 promoter for tightly regulated, methanol-induced expression of the gene, ZeocinR

Invitrogen

pGAP9

pPIC9 derivative, GAP promoter instead of AOX1 promoter

Lab stock

pGAP9-pro

pGAP9 derivative carrying an internal 135 bp fragment of pro gene

This study

pPICZα-rDNA-mtg

pPICZα-mtg derivative carrying an internal 1153 bp fragment of rDNA gene, ZeocinR

This study