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Thermo Scientific™ Maxima H Minus First Strand cDNA Synthesis Kit, with dsDNase

A complete system for highly efficient synthesis of first strand cDNA.

Supplier:  Thermo Scientific™ K1681

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Catalog No. FERK1681



Get highly efficient synthesis of first strand cDNA with the Thermo Scientific™ Maxima™ H Minus First Strand cDNA Synthesis Kit.

The kit uses the Maxima H Minus Reverse Transcriptase (RT), which is an advanced enzyme derived by in vitro evolution of M-MuLV RT. The enzyme features the highest thermostability among the derivatives of M-MuLV RT and lacks RNase H activity. The Maxima H Minus First Strand cDNA Synthesis Kit allows synthesis of long cDNAs up to 20 kb at elevated temperatures (up to 65°C), superseding other systems' abilities to produce full-length cDNA. Due to increased synthesis rates the reaction can be completed in 30 minutes.
The new Maxima H Minus First Strand cDNA Synthesis Kit with dsDNase provides a dramatically simplified workflow that combines genomic DNA elimination and cDNA synthesis into one-tube procedure. The kit contains a novel double-strand specific DNase (dsDNase) engineered to remove contaminating genomic DNA from RNA preps in 2 minutes without damage to quality or quantity of RNA. Highly specific dsDNase activity towards double-stranded DNA ensures that single-stranded DNA (such as cDNA and primers) is not cleaved and dsDNase treated RNA can be directly added to reverse transcription.


  • Integrated genomic DNA removal step
  • Increased reaction temperatures - the first strand of cDNA can be synthesized within the 42 to 65°C temperature range
    High yields of full-length first strand cDNA - with RNA templates up to 20 kb
  • Flexible priming - oligo(dT)18, random hexamer, or gene-specific primers
  • First Strand cDNA synthesis for RT-PCR
  • Construction of cDNA libraries
  • Generation of probes for hybridization
  • Antisense RNA synthesis
  • Maxima H Minus First Strand cDNA Synthesis Kit contains Maxima H Minus Enzyme Mix, Oligo(dT)18 and Random hexamer primers, 5X RT Buffer, dNTP Mix, and nuclease-free water.
  • Maxima H Minus First Strand cDNA Synthesis Kit with dsDNase, in addition to the above listed components, contains dsDNase and 10X dsDNase Buffer.
Additional information about reaction components
  • Maxima H Minus Enzyme Mix contains Maxima H Minus Reverse Transcriptase and RiboLock RNase Inhibitor. RiboLock RNase Inhibitor effectively protects RNA templates from degradation by RNases A, B and C at temperatures up to 55°C.
  • Oligo(dT)18 and random hexamer primers are supplied with the kit. Random hexamer primers bind non-specifically and are used to synthesize cDNA from all RNAs in a total RNA population. The oligo(dT)18 primer selectively anneals to the 3'-end of poly(A) RNA, synthesizing cDNA only from poly(A) tailed mRNA. Gene-specific primers may also be used with the kit to prime synthesis from a specified sequence.
  • 10 mM dNTP Mix is a premixed aqueous solution of dATP, dTTP, dCTP, and dGTP
  • Nuclease-free water is provided for reaction set-up and dilution of sample DNA. The absence of endo-, exodeoxyribonucleases, ribonucleases, and phosphatases has been confirmed by appropriate quality tests. †Note that the name of this product has changed. The previous name is RevertAid Premium First Strand cDNA Synthes

Hazardous: No
Quality Control: Functionally tested in RT-PCR using 100 fg of control GAPDH RNA and GAPDH control primers generate a prominent 496 bp product on 1% agarose gel after ethidium bromide staining.
Storage Condition: -20°C



• Maxima H Minus Enzyme Mix
• dsDNase
• 10X dsDNase Buffer
• Oligo(dT)18 and Random hexamer primers
• 5X RT Buffer
• dNTP Mix
• Nuclease-free water

Store at –20°C.

First-Strand cDNA Synthesis Kit
20 Reactions
Separate components
Reverse Transcription
50°C to 55°C
Maxima H Minus
Real-Time Quantitative PCR (qPCR), Reverse Transcriptase PCR (RT-PCR)
First-Strand cDNA
30 min.
Up to 20 kb
Reverse Transcription
20 x 20 μL Reactions


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