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Key Documents

A7431

Sigma-Aldrich

Agarose

BioReagent, for molecular biology, Wide range/Standard 3:1

Synonym(s):

3,6-Anhydro-α-L-galacto-β-D-galactan

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About This Item

CAS Number:
EC Number:
MDL number:
UNSPSC Code:
41105317
PubChem Substance ID:
NACRES:
NA.25

biological source

algae (marine)

Quality Level

grade

for molecular biology

product line

BioReagent

form

powder

technique(s)

electrophoresis: suitable

EEO

≤0.13

mp

≤90 °C

transition temp

gel point 32.5-38 °C (4% gel)

gel strength

≥1200 g/cm2 (4% gel)

anion traces

sulfate (SO42-): ≤0.15%

foreign activity

DNase, RNase, NICKase, none detected

InChI

1S/C24H38O19/c25-1-5-9(27)11(29)12(30)22(38-5)41-17-8-4-36-20(17)15(33)24(40-8)43-18-10(28)6(2-26)39-23(14(18)32)42-16-7-3-35-19(16)13(31)21(34)37-7/h5-34H,1-4H2/t5-,6-,7+,8+,9+,10+,11+,12-,13+,14-,15+,16-,17-,18+,19+,20+,21-,22+,23+,24+/m1/s1

InChI key

MJQHZNBUODTQTK-WKGBVCLCSA-N

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Application

Specially formulated to form strong, flexible gels for separation of small (≤1 kb) PCR products, DNA and RNA. Stronger gels make gel-handling easier. Sharp resolution is produced with DNA fragments ranging from 10-1500 bp.

Analysis Note

The following is a list of properties associated with our agaroses:
Sulfate content - used as an indicator of purity, since sulfate is the major ionic group present.
Gel strength - the force that must be applied to a gel to cause it to fracture.
Gel point - the temperature at which an aqueous agarose solution forms a gel as it cools. Agarose solutions exhibit hysteresis in the liquid-to-gel transition - that is, their gel point is not the same as their melting temperature.
Electroendosmosis (EEO) - a movement of liquid through the gel. Anionic groups in an agarose gel are affixed to the matrix and cannot move, but dissociable counter cations can migrate toward the cathode in the matrix, giving rise to EEO. Since electrophoretic movement of biopolymers is usually toward the anode, EEO can disrupt separations because of internal convection.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Julia Dahlmann et al.
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Nature methods, 11(1), 47-50 (2013-11-26)
Lipids have a role in virtually all biological processes, acting as structural elements, scaffolds and signaling molecules, but they are still largely under-represented in known biological networks. Here we describe a liposome microarray-based assay (LiMA), a method that measures protein
Markus Landthaler et al.
RNA (New York, N.Y.), 14(12), 2580-2596 (2008-11-04)
microRNAs (miRNAs) regulate the expression of mRNAs in animals and plants through miRNA-containing ribonucleoprotein particles (RNPs). At the core of these miRNA silencing effector complexes are the Argonaute (AGO) proteins that bind miRNAs and mediate target mRNA recognition. We generated
Benjamin Pluvinage et al.
The Journal of biological chemistry, 288(39), 28078-28088 (2013-08-08)
The bacteria that metabolize agarose use multiple enzymes of complementary specificities to hydrolyze the glycosidic linkages in agarose, a linear polymer comprising the repeating disaccharide subunit of neoagarobiose (3,6-anhydro-l-galactose-α-(1,3)-d-galactose) that are β-(1,4)-linked. Here we present the crystal structure of a
Eric Kim et al.
PloS one, 8(1), e53419-e53419 (2013-01-10)
One advantage of the nematode Caenorhabditis elegans as a model organism is its suitability for in vivo optical microscopy. Imaging C. elegans often requires animals to be immobilized to avoid movement-related artifacts. Immobilization has been performed by application of anesthetics

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