Feb 15, 2022

Public workspaceFirst Strand Synthesis with Reverse Transcriptase (M0253) V.2

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Protocol CitationNew England Biolabs 2022. First Strand Synthesis with Reverse Transcriptase (M0253). protocols.io https://dx.doi.org/10.17504/protocols.io.bddyi27wVersion created by New England Biolabs
License: This is an open access protocol distributed under the terms of the Creative Commons Attribution License,  which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Protocol status: Working
We use this protocol and it’s working
Created: March 08, 2020
Last Modified: February 15, 2022
Protocol Integer ID: 33944
Keywords: M-MuLV reverse transcriptase, first strand reverse transcription, transcription
Abstract
This protocol is for First Strand Synthesis with M-MuLV Reverse Transcriptase (M0253).
Materials
MATERIALS
ReagentMagnesium ChlorideFisher ScientificCatalog #AC223210010
ReagentDTT (Dithiothreitol) (> 99% pure) Protease freeGold BiotechnologyCatalog #DTT
ReagentTris-HClLife TechnologiesCatalog #AM9855
ReagentPotassium chlorideMerck MilliporeSigma (Sigma-Aldrich)Catalog #P9333
ReagentM-MuLV Reverse TranscriptaseNew England BiolabsCatalog #M0253

Materials needed:

10X RT buffer:
AB
Tris-HCl (pH 8.3 @ 25°C)500 mM
KCl750 mM
MgCl230 mM
DTT100 mM
dNTP mix (2.5 mM each in water titrated by Tris-HCl to pH 7.0)

Oligo-dT primer (40 µM)

Random nonamers (40 µM)

RNase Inhibitor (10 U/µL)

M-MuLV Reverse Transcriptase (200 units/µL)
Safety warnings
Please refer to the Safety Data Sheets (SDS) for health and environmental hazards.
Before start
Prepare the following solutions:

10X RT buffer:
AB
Tris-HCl (pH 8.3 @ 25°C)500 mM
KCl750 mM
MgCl230 mM
DTT100 mM
dNTP mix (2.5 mM each in water titrated by Tris-HCl to pH 7.0)
In a sterile microfuge tube add the following:
ReagentVolume
RNA solution0.5-2 µg (total RNA) or 50-100 ng (PolyA-selected RNA)
Primer (Oligo-dT primer at 40 µM or Random nonamer N9 at 40 µM)2 µL
dNTP mix (2.5 mM each in water titrated by Tris-HCl to pH 7.0)4 µL
nuclease-free H2Oto final volume of 16 µL

Heat for 3-5 minutes at Temperature65 °C -Temperature80 °C .
Spin briefly and place promptly TemperatureOn ice .
Add:
Amount2 µL 10X RT buffer
Amount1 µL RNAse inhibitor
Amount1 µL M-MuLV Reverse Transcriptase

Final volume: Amount20 µL

Pipetting
Incubate at Temperature42 °C for Duration01:00:00 .
Incubation
Inactivate enzyme at Temperature90 °C for Duration00:10:00 .
Store products at Temperature-20 °C or proceed to next step(s).