Invitrogen™

ElectroMAX™ DH12S Cells

Catalog number: 18312017
Invitrogen™

ElectroMAX™ DH12S Cells

Catalog number: 18312017
Catalog Number
18312017
Unit Size
5 x 100 µL
Price (USD)
Price: 336.00
Your Price:
Availability
***
Quantity
Catalog NumberUnit SizePrice (USD)AvailabilityQuantity
183120175 x 100 µL
Price: 336.00
Your Price:
***
Product Overview
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ElectroMAX DH12S Cells, a derivative of DH10B are suitable for transformation by electroporation (1,2). They may be used for production of single-stranded DNA and in procedures requiring high transformation efficiencies, such as generation of cDNA, genomic, and subtractive cDNA libraries. The DH12S strain is endA+, which allows the production of ssDNA with less contaminating double-stranded DNA. The lacIq on the F´ marker allows for regulatable expression from the lac promoter. Unlike most E. colihosts used in cloning genomic DNA (3), the systems that restrict DNAs containing methylated cytosine and adenine residues (mcrA, mcrB, mcrC, and mrr) have been eliminated in
the DH12S strain, allowing the construction of more representative genomic libraries and more efficient plasmid rescue procedures (4,5). M13KO7 helper phage is also supplied for the production of ss DNA. ElectroMAX DH12S Cells offer:

• >1 x 1010 transformants/µg efficiency with electroporation for unsurpassed cloning results
• A unique genotype to support production of exceptionally clean single stranded DNA
• Stable F´ episome to eliminate the need for growth on minimal media
• Better sequence representation eliminating mcrA, mcrBC, mrr, hsdRMS restriction systems
• Blue/white screening of recombinant clones due to lacZΔM15
• Ready-to-use M13KO7 helper phage for single stranded DNA production
WARNING: Reproductive Harm - www.P65Warnings.ca.gov
For Research Use Only. Not for use in diagnostic procedures.

Specifications

Product Type
Competent Cell
Contains F' Episome
Contains F' Episome
Efficiency
High Efficiency (>10^9 cfu/µg)
Cell Type
Electrocompetent
Improves Plasmid Quality
No
Libraries
cDNA
Cloning Methylated DNA
Yes
Transformation Efficiency Level
High Efficiency (> 10^9 cfu⁄µg)
Cloning Unstable DNA
Not Suitable for cloning unstable DNA
Bacterial or Yeast Strain
DH12S
Blue/White Screening
Yes
High-throughput Compatibility
Not High-throughput Compatible (Manual)
Plasmid
May be used for plasmids > 20 kb
Preparing Unmethylated DNA
Not Suitable for preparing unmethylated DNA
Propagating ccdB Vectors
Not for ccdB vector propagation
Reduces Recombination
Yes
Shipping Condition
Dry Ice
T1 Phage - Resistant (tonA)
No
Species
E. coli
Promoter
Lac
Format
Tube
Product Line
DH12S, ElectroMAX™

Contents & Storage

Store in ultra-cold freezer (-68 to -85°C).