Skip to Content

尊敬的客户：

目前国际形势复杂多变，关税政策尚不明朗，这可能对我们的产品价格产生一定影响。在此情况下，我们希望就订单事宜与您进行友好沟通。

基于当前的不确定性，如果您选择在此期间下单，我们将保留根据实际情况调整价格的权利。同时，我们也理解市场变化可能给您带来的困扰，因此如果在订单实际发货前因关税政策变动导致价格出现较大波动，默克将与您进行协商讨论并视情况对订单进行调整或取消。

关于应对近期政策变化的重要更新，请点击此处查看详情。

Merck
CN
All Photos(1)

Key Documents

View All Documentation

70953

Sigma-Aldrich

Rosetta Competent Cells - Novagen

Escherichia coli, rod shaped

Synonym(s):

Competent cells

Sign Into View Organizational & Contract Pricing

Select a Size

5 G
CN¥678.20
25 G
CN¥2,790.28

CN¥678.20

Available to ship onApril 24, 2025Details

Sign In for Best Price
All Photos(1)

Select a Size

Change View
5 G
CN¥678.20
25 G
CN¥2,790.28

About This Item

UNSPSC Code:
41106202
NACRES:
NA.81

CN¥678.20

Available to ship onApril 24, 2025Details

Sign In for Best Price

Product Name

Rosetta Competent Cells - Novagen, Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

biological source

Escherichia coli

Quality Level

100

manufacturer/tradename

Novagen®

storage condition

OK to freeze

growth mode

adherent or suspension

morphology

rod shaped

technique(s)

microbiological culture: suitable

cell transformation

transformation efficiency: >2×106 cfu/μg

shipped in

dry ice

Related Categories

Compare Similar Items

View Full Comparison

Show Differences

1 of 4

This Item
PHR1167D2819L2906
环丙沙星 ≥98% (HPLC)

17850

环丙沙星

环丙沙星 Pharmaceutical Secondary Standard; Certified Reference Material

PHR1167

环丙沙星

二氟沙星 盐酸盐

D2819

二氟沙星 盐酸盐

Lomefloxacin hydrochloride

L2906

Lomefloxacin hydrochloride

antibiotic activity spectrum

Gram-negative bacteria, Gram-positive bacteria

antibiotic activity spectrum

-

antibiotic activity spectrum

Gram-negative bacteria, Gram-positive bacteria

antibiotic activity spectrum

Gram-negative bacteria, Gram-positive bacteria

Quality Level

200

Quality Level

300

Quality Level

200

Quality Level

200

application(s)

environmental

application(s)

pharmaceutical (small molecule)

application(s)

-

application(s)

-

form

powder or crystals

form

-

form

powder

form

-

assay

≥98% (HPLC)

assay

-

assay

≥98% (HPLC)

assay

-

General description

Genotype: F-ompT hsdSB(rB- mB-) gal dcm pRARE (CamR)

This product contains genetically modified organisms (GMO). Within the EU GMOs are regulated by Directives 2001/18/EC and 2009/41/EC of the European Parliament and of the Council and their national implementation in the member States respectively. This legislation obliges us to request certain information about you and the establishment where the GMOs are being handled. Click here for Enduser Declaration (EUD) Form.
Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli. These strains supply tRNAs for AGG, AGA, AUA, CUA, CCC, GGA codons on a compatible chloramphenicol-resistant plasmid. Thus the Rosetta strains provide for “universal” translation which is otherwise limited by the codon usage of E. coli. The tRNA genes are driven by their native promoters.
Rosetta host strains are BL21 derivatives designed to enhance the expression of eukaryotic proteins that contain codons rarely used in E. coli.

Components

0.4 ml1 mlComponent

•2 × 0.2 ml5 × 0.2 mlRosetta Competent Cells

•2 × 2 ml4 × 2 mlSOC Medium

•10 µl10 µlTest Plasmid

Warning

Toxicity: Multiple Toxicity Values, refer to MSDS (O)

Legal Information

NOVAGEN is a registered trademark of Merck KGaA, Darmstadt, Germany

Storage Class Code

10 - Combustible liquids

WGK

WGK 2

  • Specification Sheet

    • Certificates of Analysis (COA)

    Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

    Already Own This Product?

    Find documentation for the products that you have recently purchased in the Document Library.

    Visit the Document Library

    Bekir Altas et al.
    Methods in molecular biology (Clifton, N.J.), 1538, 69-82 (2016-12-13)
    The chemical synapse displays specialized intercellular adhesion between pre- and potsynaptic plasma membranes mediated by synaptic cell adhesion proteins. In this asymmetric cell adhesion, pre- and postsynapses have their own unique functions; the presynaptic terminal releases neurotransmitter, which diffuses through
    Erdem Sendinc et al.
    Molecular cell, 75(3), 620-630 (2019-07-08)
    mRNA modifications play important roles in regulating gene expression. One of the most abundant mRNA modifications is N6,2-O-dimethyladenosine (m6Am). Here, we demonstrate that m6Am is an evolutionarily conserved mRNA modification mediated by the Phosphorylated CTD Interacting Factor 1 (PCIF1), which
    Benjamin J Umlauf et al.
    BioTechniques, 58(2), 81-84 (2015-02-06)
    Amplification bias is a major hurdle in phage display protocols because it imparts additional, unintended selection pressure beyond binding to the desired target. One potential source of amplification bias is the inherent lack of codon optimization that occurs within phage
    Yingying Yang et al.
    PLoS genetics, 19(8), e1010733-e1010733 (2023-08-21)
    The mitochondrial C-to-U RNA editing factor PPR56 of the moss Physcomitrium patens is an RNA-binding pentatricopeptide repeat protein equipped with a terminal DYW-type cytidine deaminase domain. Transferred into Escherichia coli, PPR56 works faithfully on its two native RNA editing targets
    Zsofia Botyanszki et al.
    Biotechnology and bioengineering, 112(10), 2016-2024 (2015-05-08)
    Biocatalytic transformations generally rely on purified enzymes or whole cells to perform complex transformations that are used on industrial scale for chemical, drug, and biofuel synthesis, pesticide decontamination, and water purification. However, both of these systems have inherent disadvantages related
    View All Related Papers

    Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

    Contact Technical Service