Description

Introduction

The Kit is designed for the purification of total RNA, including miRNA and other small RNA molecules (18nt), from cultured cells and various animal and human tissues, including difficult-to-lyse tissue samples. Alternatively, a miRNA-enriched fraction and a total RNA (>200nt) fraction can be purified separately. This Kit combines phenol/guanidine-based lysis of samples and silica membrane–based purification of total RNA. MagZol Reagent, included in the kits, is a monophasic solution of phenol and guanidine thiocyanate, designed to facilitate lysis of tissues, to inhibit RNases, and also to remove most of the cellular DNA and proteins from the lysate by organic extraction.

Specifications

Features	Specifications
Main Functions	Isolation miRNA and other small RNA molecules(18nt), from cultured cells and various animal and human tissues, using MagZol reagent and column
Applications	RT-PCR, Northern Blot, poly A+purification, nucleic acid protection and in vitro translation
Purification method	Mini spin column
Purification technology	Silica technology
Process method	Manual (centrifugation or vacuum)
Sample type	Animal tissues, adherent cells, suspension cells, bacteria, etc
Sample amount	Eukaryotic culture cells: ≤ 10^7, Animal tissue:<100mg, Yeast culture cells:<5 x10^7, Bacteria:<10^9
Elution volume	≥15μl
Time per run	≤40 minutes
Liquid carrying volume per column	800µl
Binding yield of column	100µg

Principle

Hypure silica gel column is based on glass fiber filter membrane with high binding force. Under the condition of high concentration of ionizing agent (such asguanidine hydrochloride or guanidine isothiocyanate), the filter membrane can adsorb nucleic acid through hydrogen bond and electrostatic, while protein andother impurities are not adsorbed and removed. The filter membrane adsorbed with nucleic acid is washed to remove the residual protein and salt. Finally, the nucleic acid adsorbed on the filter membrane can be washed out with low salt buffer (such as buffer TE) or water. The obtained nucleic acid has high purity and can be directly used in various downstream experiments.

This kit combines acid/guanidine (MagZol) extraction technology with glass fiber filter membrane purification, which can improve the extraction effect of complex samples and samples with low RNA content. After the sample is treated with MagZol reagent and chloroform, the supernatant is added with ethanol to provide appropriate binding conditions, then transferred to the purification column and centrifuged. Macromolecular RNA can be efficiently bound to the membrane. Collect the filtrate containing small RNA, add more ethanol to adjust the binding capacity of small RNA, the pollutants can be efficiently washed away by second cleaning. Finally, the purified RNA was eluted by RNase free water.

Advantages

• High quality – one step RNA extraction reagent combined with silica gel column can obtain the highest concentration
• Fast – several samples can be extracted in 40 minutes
• High applicability – samples including animals, plants, bacteria, cells, etc.
• High concentration – efficiently remove macromolecular RNA, enrich small RNA and improve sensitivity

Kit Contents

Contents	R431002	R431003
Purification Times	50 Preps	250 Preps
HyPure RNA Mini Columns	100	2 x 250
2ml Collection Tubes	100	2 x 250
MagZol Reagent	60 ml	270 ml
Buffer RWC	20 ml	80 ml
Buffer RW2*	20 ml	2 x 50 ml
RNase Free Water	10 ml	30 ml

Storage and Stability

MagZol Reagent should be stored at 2-8°C upon arrival. However, short-term storage (up to 24 weeks) at room temperature (15-25°C) does not affect its performance. The remaining kit components can be stored at room temperature (15-25°C) and are stable for at least 18 months under these conditions.