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Deae sepharose fast flow

Manufactured by Merck Group
Sourced in United States

DEAE-sepharose fast flow is a laboratory chromatography resin used for the purification and separation of proteins, nucleic acids, and other biomolecules. It consists of diethylaminoethyl (DEAE) functional groups coupled to a highly cross-linked agarose matrix, providing a strong anion-exchange medium with a fast flow rate.

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4 protocols using deae sepharose fast flow

1

Anticancer Potential of G. fisheri

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Red seaweed G. fisheri was harvested in October 2020 from the Shrimp Genetic Improvement Center, Surat Thani, Thailand. Human kidney cell line (HK-2) was purchased from ATCC (Manassas, VA, USA). Dulbecco’s modified eagle medium (DMEM) and fetal bovine serum (FBS) were purchased from Gibco, Life Technologies (Grand Island, NY, USA). 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) solution was purchased from PanReac AppliChem, Molecular Probes Inc. (Darmstadt, Germany). 1,1-Diphenyl-2-picrylhydrazyl (DPPH), dihydronicotine amide adenine dinucleotide (NADH), phenazine methosulfate (PMS), nitro blue tetrazolium (NBT), vitamin C, DEAE-sepharose fast flow, dextran standards (DS), phenylmethylsulfonyl fluoride (PMSF), protease inhibitor cocktail, sodium metaperiodate, sodium borohydride, sulphur trioxide-triethylamine complex, N,N-dimethylformamide, and deuterium oxide (D2O) were purchased from Sigma-Aldrich (St. Louis, MO, USA). A Clarity™ Western ECL Substrate was purchased from the Bio-Rad Laboratories, Inc. (Hercules, CA, USA). Anti-caspase-3, anti-BCL-2, anti-β-actin, and HRP-conjugated goat anti-mouse IgG antibodies were purchased from the Cell Signaling Technology, Inc. (Danvers, MA, USA). Cystone was purchased from the Himaraya drug company (Bangalore, India). All other chemicals were purchased from Merck, Thailand.
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2

Purification and Characterization of Cod Trypsin

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Dimethyl sulfoxide (DMSO), Succinyl-L-Ala-L-Ala-L-Pro-L-Phe-p-nitroanilide (Suc-AAPF-pNA), Benzoyl-L-Arg-p-nitroanilide (BAPNA), EDTA, Bis-Tris, glycine, sodium dodecyl sulphate (SDS), dithiothreitol (DTT), benzamidine, -mercaptoethanol, phenyl methyl sulphonyl fluoride (PMSF), soybean trypsin inhibitor, tosyl-lysyl-chloromethyl ketone (TLCK), Bowman-Birk trypsin inhibitor, 2-Amino-2-(hydroxymethyl)-1,3propanediol (TRIS), DEAE-Sepharose Fast Flow and Benzyloxycarbonyl-Gly-Pro-Arg pnitroanilide acetate salt (CBZ-GPR-pNA) were from Sigma Aldrich, St. Louis, MO, USA.
Calcium chloride dihydrate, sodium chloride, sodium hydroxide, methanol, glycerol, acetic acid and hydrochloric acid were from Merck, Darmstadt. Succinyl-L-Ala-L-Ala-L-Pro-L-Ala-p-nitroanilide (Suc-AAPA-pNA), Succinyl-L-Ala-L-Ala-L-Pro-L-Leu-p-nitroanilide (Suc-AAPL-pNA) and Benzyloxycarbonyl-L-Phe-L-Arg-p-nitroanilide (CBZ-FR-pNA) were from Bachem AG, Bubendorf, Switzerland. Bio-Rad protein assay was from Bio-Rad laboratories, Hercules, California, USA. PageRuler Prestained Protein Ladder SDS from Fermentas (now Thermo Fisher Scientific, Rockford, IL). NucleoSpin Plasmid kit from Macherey-Nagel (US).
benzamidine purified cod trypsin was purified as described before [4] and obtained from Zymetech (Reykjavik, Iceland).
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3

Synthesis and Purification of 2-Oxo-3-pentynoate

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All chemicals, biochemical, and enzyme substrates were obtained from sources described elsewhere.19 (link),20 2-Oxo-3-pentynoate (2-OP) was synthesized as reported.21 (link) Chromatographic resins (DEAE Sepharose fast flow and Bio-Gel P60 gel beads) and columns (PD-10 Sephadex G-25M, Econo-Column, and Spectra/Chrom LC) were acquired from sources described elsewhere.19 (link) The Amicon stirred cell concentrators and the ultrafiltration membranes (10,000 Da, MW cutoff) were purchased from EMD Millipore Inc. (Billerica, MA). InstantBlue for staining SDS-PAGE gels was obtained from C.B.S. Scientific Company, Inc. (Del Mar, CA).
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4

Protein Purification Techniques

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All chemicals, biochemical, and enzyme substrates were obtained from sources described elsewhere.7 ,8 (link),1 (link),13 (link),14 (link) Chromatographic resins (DEAE Sepharose fast flow and Phenyl-Sepharose 6 fast flow) and columns (PD-10 Sephadex G-25M, Econo-Column, and Spectra/Chrom LC) were purchased from commercial vendors, as described.7 The Amicon stirred cell concentrators and the ultrafiltration membranes (10,000 Da, MW cutoff) were purchased from EMD Millipore Inc. (Billerica, MA). Coomassie Blue R-250 dye for staining sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) gels was adapted from a literature source.15
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