Invitrogen™

GLOBINclear™ Kit, human, for globin mRNA depletion

Catalog number:  AM1980

Related applications:

RNA Extraction

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Description

The GLOBINclear™-Human Kit uses a novel, non-enzymatic technology that rapidly depletes >95% of the alpha and beta globin mRNA from total RNA preparations derived from whole blood. Advantages of the GLOBINclear™-Human Kit:

• Removes >95% of unwanted globin mRNA from whole blood total RNA
• Detects up to 50% more genes—analyze previously undetected genes
• Achieves greater representation of the genome, low 3'/5' ratios
• Avoids RNase H treatments that can degrade mRNA and alter expression profiles

Using whole blood total RNA samples
It is widely known that expression array data generated from whole blood total RNA samples have reduced detection sensitivity compared to data from fractionated blood samples. Examination of whole blood total RNA reveals a dominant band in the 600–700 base region. This band represents globin mRNA, which is expressed at high levels in red blood cells (RBCs) and reticulocytes (RBC precursors). Up to 70% of the mRNA (by mass) in whole blood total RNA are globin transcripts. Array analysis using total RNA containing a high percentage of globin mRNA has been shown to decrease present calls, decrease call concordance, and increase signal variation.

Using the GLOBINclear Kit
The GLOBINclear™ kit uses a novel hybridization technology that takes advantage of the strength of biotin/streptavidin binding, the specificity of nucleic acid hybridization, and the convenience of magnetic separations. There are no harsh RNase H enzymatic treatments that may compromise the expression profile by degrading mRNAs other than globin mRNA. The resulting mRNA is a superior template for synthesizing labeled cDNA for array analysis and is ideal for quantitative RT-PCR. The enrichment delivers a significant increase in Percent Present calls, decreased sample-to-sample variability, and low 3'/5' ratios.

Accessory product
The kit requires the use of a magnetic stand. The DynaMag-2 Magnetic Stand (Cat. No. 12321D) is recommended.

For Research Use Only. Not for use in diagnostic procedures.

Specifications

Final Product Type: Total RNA (Globin mRNA-Depleted)
High-throughput Compatibility: High-throughput Compatible
Isolation Technology: Magnetic Bead
No. of Reactions: 20 Reactions
Product Line: Ambion™, GLOBINclear™
Purification Target: Total RNA
Purification Time: 1.5 hrs
Sample Type: Total RNA (Whole Blood)
Scale: Mini
Starting Material Amount: 1 - 10 µg of human whole blood total RNA
Yield: 5 µg
For Use With (Application): Microarray Analysis, Real-Time Quantitative PCR (qPCR), Reverse Transcriptase PCR (RT-PCR), Northern Blotting, cDNA Library Construction
Format: 6 microtubes

Contents & storage

• 20 µl Capture Oligo Mix (-20°C)
• 600 µl Streptavidin Magnetic Beads (4°C—do not freeze)
• 1.5 ml 2X Hybridization Buffer (room temperature)
• 1.5 ml Streptavidin Bead Buffer (room temperature)
• 1.75 Nuclease-free Water (-20°C, 4°C, or room temperature)
• 200 µl RNA Binding Beads (4°C—do not freeze)
• 5 ml RNA Wash Solution Concentrate (4°C or room temperature)
• 1 ml Elution Buffer (4°C or room temperature)
• 80 µl RNA Bead Buffer (room temperature)
• 4 ml RNA Binding Buffer Concentrate (room temperature)
• 100 1.5-ml Non-stick Tubes (room temperature)

All components shipped on wet ice except for Capture Oligo Mix (dry ice).