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M5755

Sigma-Aldrich

MOPS-EDTA-Sodium Acetate (MESA)

powder for RNA electrophoresis buffers

Synonym(s):
MESA Buffer

grade

for molecular biology

Quality Level

product line

BioReagent

form

powder

pH

6.8-7.2(reconstituted per directions)

solubility

H2O: soluble, faintly yellow

foreign activity

DNAses, RNases, NICKases, endonucleases, and exonucleases, none detected

storage temp.

room temp

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product line

BioReagent

product line

BioReagent

product line

pHast Pack

product line

pHast Pack

form

powder

form

powder blend

form

powder

form

powder

pH

6.8-7.2(reconstituted per directions)

pH

8.1-8.5

pH

8.3

pH

8.3

solubility

H2O: soluble, faintly yellow

solubility

-

solubility

-

solubility

-

foreign activity

DNAses, RNases, NICKases, endonucleases, and exonucleases, none detected

foreign activity

-

foreign activity

DNAse, none detected, Nickase, none detected, Protease, none detected, RNAse, none detected

foreign activity

DNAse, none detected, Nickase, none detected, Protease, none detected, RNAse, none detected

General description

MOPS – EDTA – Sodium Acetate (MESA) is the most commonly used running buffer for RNA electrophoresis prior to Northern blotting procedures. Applied voltage of 5 V/cm is recommended for maximum resolution.

Application

Suitable for use when making formaldehyde-agarose gels and associated running buffer for RNA electrophoresis.

Components

1x MESA buffer contains:
  • 40 mM MOPS
  • 10 mM sodium acetate
  • 1 mM EDTA (pH 8.3)

Reconstitution

Dissolve entire contents of bottle in a final volume of 1L molecular biology grade water. This produces a 10x MESA stock solution that can be further diluted as needed.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Molecular techniques for detection of gene expression in neuroimmunology.
Cowan, E.P., and Dhib-Jalbut, S.S.
Methods in Neuroscience, 24, 41-41 (1995)
Sambrook, J., et al.
Molecular Cloning: A Laboratory Manual, 7-7 (1989)
Xueyu Xiang et al.
Developmental biology, 275(2), 343-355 (2004-10-27)
Recently, we cloned and sequenced the cDNA of allurin, a sperm chemoattractant isolated from the jelly of Xenopus laevis eggs [Proc. Natl. Acad. Sci. U.S.A. 78 (2001) 11205]. In this report, we demonstrate that allurin mRNA is expressed almost exclusively
Kathryn M Jones et al.
Journal of bacteriology, 184(9), 2491-2499 (2002-04-12)
Two operons have been cloned from Anabaena sp. strain PCC 7120 DNA, each of which encodes the three core subunits of distinct mitochondrial-type cytochrome c oxidases. The two operons are only 72 to 85% similar to one another at the
Electrophoresis in agarose and acrylamide gels.
R C Ogden et al.
Methods in enzymology, 152, 61-87 (1987-01-01)

Protocols

TAE and TBE Running Buffers Recipe & Video

TAE and TBE are both used as running buffers for nucleic acid electrophoresis but have some important differences. Review our recipes and video to give your application the best chance of success.

Northern and Southern Blot Protocols & Introduction

An introduction to both Northern and Southern blotting, popular methods for the transfer of macromolecules to membranous support. This article also offers a Southern blot protocol and a northern blot protocol.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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