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Ni nta silica beads

Manufactured by Qiagen

Ni-NTA silica beads are a type of solid-phase chromatography resin used for the purification of recombinant proteins. The beads are made of silica and have a nickel-nitrilotriacetic acid (Ni-NTA) coating, which allows for the selective binding of proteins with a histidine-tag. This property enables the efficient capture and recovery of target proteins from complex mixtures.

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2 protocols using ni nta silica beads

1

Quantitative Proteomics Sample Preparation

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Urea, dithiothreitol (DTT), iodoacetamide (IAA), iron chloride, triethylammonium bicarbonate (TEABC), ethylenediaminetetraacetic acid (EDTA), ammonia phosphate (NH4H2PO4), trifluoroacetic acid (TFA), formic acid (FA), acetonitrile (ACN), n-Dodecyl β-D-maltoside (DDM), protease, phosphatase inhibitor, DMSO (HPLC grade), and Phosphate-Buffered Saline (PBS) were obtained from Sigma (St. Louis, MO). The Ni-NTA silica beads and agarose beads were obtained from Qiagen (Hilden, Germany) and the EmporeTM extraction C18 disks were obtained from 3 M (St. Paul, MN). TMT-16 reagents were purchased from Thermo Fisher Scientific (Waltham, MA). Water was processed using a Millipore Milli-Q system (Bedford, MA). Polypropylene microwell chip with 2.2-mm wells diameter was manufactured on polypropylene substrates by Protolabs (Maple Plain, MN). Tris(2-carboxyethyl) phosphine hydrochloride (TCEP-HCl), and 50% Hydroxylamine (HA) were purchased from Thermo Fisher Scientific (Waltham, MA). Ethanol was purchased from Decon Labs, Inc. (King of Prussia, PA).
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2

Protein Sample Preparation for MS

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Urea was purchased from Bio-Rad (Hercules, CA). Tris(2-carboxyethyl) phosphine hydrochloride (TCEP), 2-chloroacetamide (CAA), triethylammonium bicarbonate (TEAB), iron chloride, trifluoroacetic acid (TFA), ethylenediaminetetraacetic acid (EDTA), and sodium dodecyl sulfate (SDS) were purchased from Sigma-Aldrich. Phosphoric acid (PA) was purchased from Honeywell Fluka. Methanol (MeOH), formic acid (FA) and SeQuant ZIC-HILIC column were purchased from Merck. Acetic acid (AA), acetonitrile (ACN), and ammonia phosphate (NH4H2PO4) were purchased from J.T.Baker. Ni-NTA silica beads were purchased from Qiagen. Evotips were purchased from Evosep. S-Trap micro columns were purchased from ProtiFi (Huntington, NY). Empore C8 extraction disks were purchased from 3M. MS grade Lys-C (lysyl endopeptidase) was purchased from FUJIFILM Wako. Sequencing-grade modified trypsin was purchased from Promega. Water was obtained from a Millipore Milli-Q system.
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