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PCR Enzymes and Solutions

M-MLV Retro Transcriptase

Moloney Murine Leukemia Virus Reverse Transcriptase (M-MLV RT) is a RNA-dependent DNA polymerase used to generate first-strand complementary DNA (cDNA) from poly-mRNA, total RNA or viral RNA for use in downstream applications such as RT-(q)PCR or cDNA cloning. This enzyme contains several point mutations in the RNase H domain that enhances its thermostability and increases the cDNA yield of full-length transcripts (>5 kb) than wild-type M-MLV RT.


Reference Unit size  Concentration Format Associated files 
MT50U-L3MVRTHA 50,000 U N/A** Lyophilized  



*Please, do not hesitate to contact us for further requirements.  

**Not applicable 


Due to the purpose of this product, it is always RNase-free.

*For research use only. 

Suggested reaction conditions

Recommended use of 200 units per 20 µL reaction. Denature RNA and primers by incubating at 65-70 °C for 5 min and mix them with dNTPs, MgCl2, provided buffer (Ref.; BMVRTHC) and M-MLV Reverse Transcriptase. Incubate the mixture at 45 °C for 30 min, inactivate the enzyme at 95 °C for 2 min and proceed with the generated cDNA.

Activity unit definition

One unit incorporates 1 nmol of dTTP into acid-precipitable material in 10 minutes at 37°C using poly(A)•oligo(dT)25 as template-primer. 

Storage conditions

Once received, store the lyophilized product at Room Temperature, while buffers and MgCl2 should be stored at 4 °C or -20 °C. Once reconstituted, store M-MLV Reverse Transcriptase at -20 °C or -80 °C. Avoid multiple freeze/thaw cycles by storing multiple aliquots.

Buffer composition

This lyophilized product is provided with 1X M-MLV Reverse Transcriptase Reconstitution Buffer (ref.: RB-L3MVRTHC), 10X M-MLV Reverse Transcriptase Reaction Buffer (Ref.: BMVRTHC) and 100 mM MgCl2 (Ref.: MGCL2).

The lyophilized M-MLV Reverse Transcriptase contains 50,000 U. To obtain a final concentration of 200 U/µL, add 250 µL of reconstitution buffer (ref.: RB-L3MVRTHC) and gently pipette up and down. Aliquot into smaller volumes to avoid multiple freeze/thaw cycles.

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