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15 February 2012
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Rosetta-gami 2 host strains combine the advantages of Rosetta 2 and Origami 2 strains to alleviate codon bias and enhance disulfide bond formation in the cytoplasm when heterologoous proteins are expressed in E. coli. These trxB/gor mutants are compatible with kanamycin-resistant vectors, and carry the chloramphenicol-resistant pRARE2 plasmid, which supplies seven rare tRNAs.
DE3 indicates that the host is a lysogen of λDE3, and therefore carries a chromosomal copy of the T7 RNA polymerase gene under control of the lacUV5 promoter. Such strains are suitable for production of protein from target genes cloned in pET vectors by induction with IPTG.
pLysS strains express T7 lysozyme, which further suppresses basal expression of T7 RNA polymerase prior to induction, thus stabilizing pET recombinants encoding target proteins that affect cell growth and viability. Genotype: Δ(ara-leu)7697 ΔlacX74 ΔphoA PvuII phoR araD139 ahpC galE galK rpsL (DE3) F′[lac+ lacIq pro] gor522::Tn10 trxB pLysSRARE2 (CamR, StrR, TetR)
DE3 indicates that the host is a lysogen of λDE3, and therefore carries a chromosomal copy of the T7 RNA polymerase gene under control of the lacUV5 promoter. Such strains are suitable for production of protein from target genes cloned in pET vectors by induction with IPTG.
pLysS strains express T7 lysozyme, which further suppresses basal expression of T7 RNA polymerase prior to induction, thus stabilizing pET recombinants encoding target proteins that affect cell growth and viability. Genotype: Δ(ara-leu)7697 ΔlacX74 ΔphoA PvuII phoR araD139 ahpC galE galK rpsL (DE3) F′[lac+ lacIq pro] gor522::Tn10 trxB pLysSRARE2 (CamR, StrR, TetR)
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| 71350 | Rosetta-gami™ 2 Competent Cells |
| 71351 | Rosetta-gami™ 2(DE3) Competent Cells * |
| 71432 | Rosetta-gami™ 2 Competent Cell Set |
| Related products for Rosetta-gami™ 2(DE3)pLysS Competent Cells | |
| 71350 | Rosetta-gami™ 2 Competent Cells |
| 71351 | Rosetta-gami™ 2(DE3) Competent Cells * |
| 71432 | Rosetta-gami™ 2 Competent Cell Set |
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| Guaranteed efficiency | 2 × 106 cfu/µg | ||||||||||||||||||
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| Storage | ≤ -70°C | ||
| Ship |
Dry Ice Only
Standard Handling |
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| Licence Brookhaven | This product is covered under license from Brookhaven National Labs. Commercial entities need to obtain a research use license prior to purchase. Please contact your licensing department to confirm that your company already holds a research use license. | ||
