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Addgene inc pet 21 b
Pet 21 B, supplied by Addgene inc, used in various techniques. Bioz Stars score: 93/100, based on 5 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/pet+21+b/pIC247+(Plasmid+%2369741)/pmc12281481-0-4-6
Average 93 stars, based on 5 article reviews
pet 21 b - by Bioz Stars, 2026-10
93/100 stars

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Related Articles

Expressing:

Article Title: High-Throughput Screening Tool to Identify Small Molecule Inhibitors of Telomerase
Article Snippet: .. TcTERT expression plasmid , pET-21 b(+) (Addgene# 69741-3). .. BBT-dGTP, BBT-GTP , Jena Bioscience.

Article Title: Mutations in the coordination spheres of T1 Cu affect Cu 2+ -activation of the laccase from Thermus thermophilus.
Article Snippet: .. E. coli DH5a and E. coli OrigamiTM 2 (DE3) (Merck Millipore, Burlington, USA) were used for plasmid amplification and heterologous recombinant LAC protein expression, respectively. pET-21 b (Addgene, Cambridge, USA) was used for gene expression of Tt-LAC WT and mutants. .. E. coli strains were grown in LB media (Merck, Darmstadt, Germany) with selectable antibiotics.

Plasmid Preparation:

Article Title: High-Throughput Screening Tool to Identify Small Molecule Inhibitors of Telomerase
Article Snippet: .. TcTERT expression plasmid , pET-21 b(+) (Addgene# 69741-3). .. BBT-dGTP, BBT-GTP , Jena Bioscience.

Article Title: Mutations in the coordination spheres of T1 Cu affect Cu 2+ -activation of the laccase from Thermus thermophilus.
Article Snippet: .. E. coli DH5a and E. coli OrigamiTM 2 (DE3) (Merck Millipore, Burlington, USA) were used for plasmid amplification and heterologous recombinant LAC protein expression, respectively. pET-21 b (Addgene, Cambridge, USA) was used for gene expression of Tt-LAC WT and mutants. .. E. coli strains were grown in LB media (Merck, Darmstadt, Germany) with selectable antibiotics.

Amplification:

Article Title: Mutations in the coordination spheres of T1 Cu affect Cu 2+ -activation of the laccase from Thermus thermophilus.
Article Snippet: .. E. coli DH5a and E. coli OrigamiTM 2 (DE3) (Merck Millipore, Burlington, USA) were used for plasmid amplification and heterologous recombinant LAC protein expression, respectively. pET-21 b (Addgene, Cambridge, USA) was used for gene expression of Tt-LAC WT and mutants. .. E. coli strains were grown in LB media (Merck, Darmstadt, Germany) with selectable antibiotics.

Recombinant:

Article Title: Mutations in the coordination spheres of T1 Cu affect Cu 2+ -activation of the laccase from Thermus thermophilus.
Article Snippet: .. E. coli DH5a and E. coli OrigamiTM 2 (DE3) (Merck Millipore, Burlington, USA) were used for plasmid amplification and heterologous recombinant LAC protein expression, respectively. pET-21 b (Addgene, Cambridge, USA) was used for gene expression of Tt-LAC WT and mutants. .. E. coli strains were grown in LB media (Merck, Darmstadt, Germany) with selectable antibiotics.

Gene Expression:

Article Title: Mutations in the coordination spheres of T1 Cu affect Cu 2+ -activation of the laccase from Thermus thermophilus.
Article Snippet: .. E. coli DH5a and E. coli OrigamiTM 2 (DE3) (Merck Millipore, Burlington, USA) were used for plasmid amplification and heterologous recombinant LAC protein expression, respectively. pET-21 b (Addgene, Cambridge, USA) was used for gene expression of Tt-LAC WT and mutants. .. E. coli strains were grown in LB media (Merck, Darmstadt, Germany) with selectable antibiotics.



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All data are for cultures of E. coli strain BL21(DE3) ΔiscR , and both iron and cysteine were included in the growth medium. (Fig. 1A) Optical density at 600 nm (shown on a logarithmic scale) of cultures during aerobic (orange circles) and anaerobic (blue circles) growth phases for cells containing the pACYCDuet-1– hydGX – hydEF and <t>pET-21(b)</t> shydA1*–Strep-tag II plasmids. The pH of culture media (×) was also measured. Data for cultures with cells containing the pET-21(b) shydA–Strep-tag II plasmid instead of pET-21(b) shydA1*–Strep-tag II were similar and are not shown. (Fig. 1B) Cell lysate-based hydrogenase activities (µmol MV reduced·min −1 ·mg −1 total protein) for active CpI (red squares) and HydA1 hydrogenase (green triangles) were determined using the methyl viologen reduction assay. Data are the average for n = 3 cultures examined ± standard deviations. (Fig. 1C) SDS-PAGE analysis for the soluble fractions of final cell lysates after the anoxic co-expression of HydA1 or CpI and the HydE, HydF, and HydG maturases: (Lane 1) the molecular weight markers are from the Mark12 TM protein ladder (Invitrogen); (Lane 2) soluble cell lysate protein content for E. coli strain BL21(DE3) ΔiscR following expression of no heterologous proteins from recombinant DNA plasmids; (Lane 3) co-expression of only the HydE, HydF, and HydG maturases; (Lane 4) co-expression of HydE, HydF, HydG, and HydA1– Strep -tag II; and (Lane 5) co-expression of HydE, HydF, HydG, and CpI– Strep -tag II.
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All data are for cultures of E. coli strain BL21(DE3) ΔiscR , and both iron and cysteine were included in the growth medium. (Fig. 1A) Optical density at 600 nm (shown on a logarithmic scale) of cultures during aerobic (orange circles) and anaerobic (blue circles) growth phases for cells containing the pACYCDuet-1– hydGX – hydEF and <t>pET-21(b)</t> shydA1*–Strep-tag II plasmids. The pH of culture media (×) was also measured. Data for cultures with cells containing the pET-21(b) shydA–Strep-tag II plasmid instead of pET-21(b) shydA1*–Strep-tag II were similar and are not shown. (Fig. 1B) Cell lysate-based hydrogenase activities (µmol MV reduced·min −1 ·mg −1 total protein) for active CpI (red squares) and HydA1 hydrogenase (green triangles) were determined using the methyl viologen reduction assay. Data are the average for n = 3 cultures examined ± standard deviations. (Fig. 1C) SDS-PAGE analysis for the soluble fractions of final cell lysates after the anoxic co-expression of HydA1 or CpI and the HydE, HydF, and HydG maturases: (Lane 1) the molecular weight markers are from the Mark12 TM protein ladder (Invitrogen); (Lane 2) soluble cell lysate protein content for E. coli strain BL21(DE3) ΔiscR following expression of no heterologous proteins from recombinant DNA plasmids; (Lane 3) co-expression of only the HydE, HydF, and HydG maturases; (Lane 4) co-expression of HydE, HydF, HydG, and HydA1– Strep -tag II; and (Lane 5) co-expression of HydE, HydF, HydG, and CpI– Strep -tag II.
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All data are for cultures of E. coli strain BL21(DE3) ΔiscR , and both iron and cysteine were included in the growth medium. (Fig. 1A) Optical density at 600 nm (shown on a logarithmic scale) of cultures during aerobic (orange circles) and anaerobic (blue circles) growth phases for cells containing the pACYCDuet-1– hydGX – hydEF and <t>pET-21(b)</t> shydA1*–Strep-tag II plasmids. The pH of culture media (×) was also measured. Data for cultures with cells containing the pET-21(b) shydA–Strep-tag II plasmid instead of pET-21(b) shydA1*–Strep-tag II were similar and are not shown. (Fig. 1B) Cell lysate-based hydrogenase activities (µmol MV reduced·min −1 ·mg −1 total protein) for active CpI (red squares) and HydA1 hydrogenase (green triangles) were determined using the methyl viologen reduction assay. Data are the average for n = 3 cultures examined ± standard deviations. (Fig. 1C) SDS-PAGE analysis for the soluble fractions of final cell lysates after the anoxic co-expression of HydA1 or CpI and the HydE, HydF, and HydG maturases: (Lane 1) the molecular weight markers are from the Mark12 TM protein ladder (Invitrogen); (Lane 2) soluble cell lysate protein content for E. coli strain BL21(DE3) ΔiscR following expression of no heterologous proteins from recombinant DNA plasmids; (Lane 3) co-expression of only the HydE, HydF, and HydG maturases; (Lane 4) co-expression of HydE, HydF, HydG, and HydA1– Strep -tag II; and (Lane 5) co-expression of HydE, HydF, HydG, and CpI– Strep -tag II.
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All data are for cultures of E. coli strain BL21(DE3) ΔiscR , and both iron and cysteine were included in the growth medium. (Fig. 1A) Optical density at 600 nm (shown on a logarithmic scale) of cultures during aerobic (orange circles) and anaerobic (blue circles) growth phases for cells containing the pACYCDuet-1– hydGX – hydEF and <t>pET-21(b)</t> shydA1*–Strep-tag II plasmids. The pH of culture media (×) was also measured. Data for cultures with cells containing the pET-21(b) shydA–Strep-tag II plasmid instead of pET-21(b) shydA1*–Strep-tag II were similar and are not shown. (Fig. 1B) Cell lysate-based hydrogenase activities (µmol MV reduced·min −1 ·mg −1 total protein) for active CpI (red squares) and HydA1 hydrogenase (green triangles) were determined using the methyl viologen reduction assay. Data are the average for n = 3 cultures examined ± standard deviations. (Fig. 1C) SDS-PAGE analysis for the soluble fractions of final cell lysates after the anoxic co-expression of HydA1 or CpI and the HydE, HydF, and HydG maturases: (Lane 1) the molecular weight markers are from the Mark12 TM protein ladder (Invitrogen); (Lane 2) soluble cell lysate protein content for E. coli strain BL21(DE3) ΔiscR following expression of no heterologous proteins from recombinant DNA plasmids; (Lane 3) co-expression of only the HydE, HydF, and HydG maturases; (Lane 4) co-expression of HydE, HydF, HydG, and HydA1– Strep -tag II; and (Lane 5) co-expression of HydE, HydF, HydG, and CpI– Strep -tag II.
Pet 21(b) Strep Tag Ii– Hydg, supplied by Millipore, used in various techniques. Bioz Stars score: 90/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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All data are for cultures of E. coli strain BL21(DE3) ΔiscR , and both iron and cysteine were included in the growth medium. (Fig. 1A) Optical density at 600 nm (shown on a logarithmic scale) of cultures during aerobic (orange circles) and anaerobic (blue circles) growth phases for cells containing the pACYCDuet-1– hydGX – hydEF and <t>pET-21(b)</t> shydA1*–Strep-tag II plasmids. The pH of culture media (×) was also measured. Data for cultures with cells containing the pET-21(b) shydA–Strep-tag II plasmid instead of pET-21(b) shydA1*–Strep-tag II were similar and are not shown. (Fig. 1B) Cell lysate-based hydrogenase activities (µmol MV reduced·min −1 ·mg −1 total protein) for active CpI (red squares) and HydA1 hydrogenase (green triangles) were determined using the methyl viologen reduction assay. Data are the average for n = 3 cultures examined ± standard deviations. (Fig. 1C) SDS-PAGE analysis for the soluble fractions of final cell lysates after the anoxic co-expression of HydA1 or CpI and the HydE, HydF, and HydG maturases: (Lane 1) the molecular weight markers are from the Mark12 TM protein ladder (Invitrogen); (Lane 2) soluble cell lysate protein content for E. coli strain BL21(DE3) ΔiscR following expression of no heterologous proteins from recombinant DNA plasmids; (Lane 3) co-expression of only the HydE, HydF, and HydG maturases; (Lane 4) co-expression of HydE, HydF, HydG, and HydA1– Strep -tag II; and (Lane 5) co-expression of HydE, HydF, HydG, and CpI– Strep -tag II.
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All data are for cultures of E. coli strain BL21(DE3) ΔiscR , and both iron and cysteine were included in the growth medium. (Fig. 1A) Optical density at 600 nm (shown on a logarithmic scale) of cultures during aerobic (orange circles) and anaerobic (blue circles) growth phases for cells containing the pACYCDuet-1– hydGX – hydEF and pET-21(b) shydA1*–Strep-tag II plasmids. The pH of culture media (×) was also measured. Data for cultures with cells containing the pET-21(b) shydA–Strep-tag II plasmid instead of pET-21(b) shydA1*–Strep-tag II were similar and are not shown. (Fig. 1B) Cell lysate-based hydrogenase activities (µmol MV reduced·min −1 ·mg −1 total protein) for active CpI (red squares) and HydA1 hydrogenase (green triangles) were determined using the methyl viologen reduction assay. Data are the average for n = 3 cultures examined ± standard deviations. (Fig. 1C) SDS-PAGE analysis for the soluble fractions of final cell lysates after the anoxic co-expression of HydA1 or CpI and the HydE, HydF, and HydG maturases: (Lane 1) the molecular weight markers are from the Mark12 TM protein ladder (Invitrogen); (Lane 2) soluble cell lysate protein content for E. coli strain BL21(DE3) ΔiscR following expression of no heterologous proteins from recombinant DNA plasmids; (Lane 3) co-expression of only the HydE, HydF, and HydG maturases; (Lane 4) co-expression of HydE, HydF, HydG, and HydA1– Strep -tag II; and (Lane 5) co-expression of HydE, HydF, HydG, and CpI– Strep -tag II.

Journal: PLoS ONE

Article Title: High-Yield Expression of Heterologous [FeFe] Hydrogenases in Escherichia coli

doi: 10.1371/journal.pone.0015491

Figure Lengend Snippet: All data are for cultures of E. coli strain BL21(DE3) ΔiscR , and both iron and cysteine were included in the growth medium. (Fig. 1A) Optical density at 600 nm (shown on a logarithmic scale) of cultures during aerobic (orange circles) and anaerobic (blue circles) growth phases for cells containing the pACYCDuet-1– hydGX – hydEF and pET-21(b) shydA1*–Strep-tag II plasmids. The pH of culture media (×) was also measured. Data for cultures with cells containing the pET-21(b) shydA–Strep-tag II plasmid instead of pET-21(b) shydA1*–Strep-tag II were similar and are not shown. (Fig. 1B) Cell lysate-based hydrogenase activities (µmol MV reduced·min −1 ·mg −1 total protein) for active CpI (red squares) and HydA1 hydrogenase (green triangles) were determined using the methyl viologen reduction assay. Data are the average for n = 3 cultures examined ± standard deviations. (Fig. 1C) SDS-PAGE analysis for the soluble fractions of final cell lysates after the anoxic co-expression of HydA1 or CpI and the HydE, HydF, and HydG maturases: (Lane 1) the molecular weight markers are from the Mark12 TM protein ladder (Invitrogen); (Lane 2) soluble cell lysate protein content for E. coli strain BL21(DE3) ΔiscR following expression of no heterologous proteins from recombinant DNA plasmids; (Lane 3) co-expression of only the HydE, HydF, and HydG maturases; (Lane 4) co-expression of HydE, HydF, HydG, and HydA1– Strep -tag II; and (Lane 5) co-expression of HydE, HydF, HydG, and CpI– Strep -tag II.

Article Snippet: PCR products were then cloned into the pET-21(b) expression vector (Novagen).

Techniques: Strep-tag, Plasmid Preparation, SDS Page, Expressing, Molecular Weight, Recombinant