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ERT-RO Roche

Expand Reverse Transcriptase

Synonym: reverse transcriptase, expand



Related Categories Molecular Biology, PCR/Amplification, RT-PCR and RT-qPCR More...
Quality Level   100
recombinant   expressed in
form   solution
packaging   pkg of 1,000 U (11785826001 [20 μl])
  pkg of 5,000 U (11785834001 [100 μl])
mfr. no.   Roche
parameter   42-43 °C optimum reaction temp.
storage temp.   −20°C


General description

Expand Reverse Transcriptase is a RNA directed DNA polymerase optimized for amplification of cDNA fragments up to 13.5 kb in a two-step RT-PCR assay. The enzyme is a genetically engineered version of the Moloney Murine Leukemia Virus reverse transcriptase (M-MuLV-RT). A point mutation within the RNase H sequence reduces RNase H activity to undetectable levels. Detectable improvements are obtained with respect to higher amounts of full-length cDNA transcripts and longer transcripts compared to using the native M-MuLV-RT.

Other Notes

For life science research only. Not for use in diagnostic procedures.


Heat inactivation: 95 °C for 2 min
Reverse Transcriptase enzyme for RT-PCR reactions up to 3 kb


Expand Reverse Transcriptase has been used in real-time PCR analysis for conversion of isolated RNA into cDNA. It has also been used in reverse transcription (RT). Expand Reverse Transcriptase may also be used for analyzing the sequence of the cDNA and comparing it to the genomic sequence. Important information can be obtained on intervening sequences (introns) and genomic recombinations.

Features and Benefits

• Obtain higher amounts of full-length cDNA transcripts and longer transcripts up to 13.5kb
• No RNase H activity
• Efficiently transcribes total RNA, mRNA, viral RNA and RNA rich in secondary structures
• Ideal for two-Step RT-PCR assay
• Purification of cDNA before PCR reaction is not necessary


1 set containing 3 components

Unit Definition

One unit is the enzyme activity that incorporates 1.0 nmol TMP into acid insoluble products in 10 min at +37 °C with poly(A)+ × (dT)15 as substrate.

Volume Activity: 50 U/μl

Legal Information

Expand is a trademark of Roche

Kit component only


Product #

Add to Cart

Expand Reverse Transcriptase 50 U/μl    
Expand Reverse Transcriptase Buffer 5x concentrated    
DTT Stock Solution 100 mM    
Safety & Documentation

Safety Information

NONH for all modes of transport


Certificate of Analysis (COA)

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Protocols & Articles

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