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Table 2 The primer sequences used for constructing the pUGK4 shuttle vector

From: Mucosal immunization with Lactiplantibacillus plantarum-displaying recombinant SARS-CoV-2 epitopes on the surface induces humoral and mucosal immune responses in mice

Gene name

Primer sequence (5’ − 3’)

Restriction enzyme sites

pUC19

Forward: ATAGAGCTCTGGCGTAATCATG GTCATAGC

Reverse: ATAGAGCTCAATTCACTGGCCGT CGTTTTAC

SacI

SacI

pGK02

Forward: ATAGAGCTCGATCAACGGTAAA TCCGTTGGC

Reverse: ATTGAGCTCGGTACCATATCCTG ACATTCTCTTTAC

SacI

SacI, KpnI

Erythromycin resistance gene (ErmR)

Forward: AATGGTACCGGATCCTTTCGCAG TAACTCTATTATCAAC

Reverse: ATGGTACCGTCGACTGCAGGATC CTTATCTATTAAATAATTTATAG

KpnI, BamHI

KpnI, SalI, PstI, BamHI

LDH1 promoter

Forward: ATAGTCGACCATTTGCACGAATT CTAATC

Reverse: AATCTGCAGATACTTCCTTCCAT ATTAGTG

SalI

PstI

Signal peptide (SP)

Forward: ATACTGCAGATGAAGAAAAATT TAAGAATCGTTAGCGCTG

Reverse: ATAGCATGCGGGCCCTGATGAAC TTGCGTTAATA

PstI

SphI, ApaI

Multi cloning site (MCS)

Forward: ATAGGGCCCGATATCGCCGGC

Reverse: ATAACGCGTTCTAGACACGTGT CGCGA

ApaI

MluI

Cell wall anchor(CWA)

Forward: AATGCATGCACGCGTAGGCCTA AGTCAGCTACTTTGC

Reverse: ATAAAGCTTGGTACCAGGCCTTT AGTGGTGGTGGTGGT

SphI, MluI, StuI

HindIII, KpnI, StuI

Super folder green fluorescent protein (sfGFP)

Forward: ATACTGCAGGGCCCATGTCAAA GGGTGAAG

Reverse: AATCTGCAGCCGGCCTTGTATAA TTCATCCATACC

PstI, ApaI

PstI, NaeI