コンテンツへスキップ
Merck

EMS0011

Sigma-Aldrich

Low-Artifact Digestion Buffer

Minimizes artifactual deamidation and oxidation during trypsin digestion prior to peptide mapping

別名:

Hi-Fidelity Peptide Mapping Buffer

ログイン組織・契約価格を表示する


About This Item

UNSPSCコード:
41105331
NACRES:
NA.25

形状

liquid

適合性

suitable for (peptide mapping)

輸送温度

wet ice

保管温度

2-8°C

詳細

Low-Artifact Digestion Buffer (EMS0011) is optimized for digestion of therapeutic proteins and antibodies prior to peptide mapping by LC-UV-MS. The buffer has been designed to minimize artifactual methionine oxidation and asparagine deamidation during sample preparation while maintaining effective reduction, alkylation and proteolytic digestion.

Endogenous deamidation and oxidation of protein amino acids can be implicated in and be indicative of many diseases, protein turnover, development, and aging. The introduction of these modifications can often affect biological activity, half-life, and immunogenicity.

Current protein digestion workflows often introduce a significant amount of artifactual deamidation and oxidation which prohibits the measurement of the endogenous levels.

The Low Artifact Digestion Buffer allows protein digestion in less than 6 hours with minimized artifactual modifications such as deamidation and oxidation. The amount of oxidation and deamidation introduced during further downstream processing of biotherapeutic antibodies and proteins can be accurately determined. The most commonly deamidated amino acid is Asn especially when followed by small amino acids such as Gly. The most commonly oxidized amino acids are Met, Cys, and to some extent Trp and His.

保管分類コード

12 - Non Combustible Liquids

WGK

nwg

引火点(°F)

Not applicable

引火点(℃)

Not applicable


適用法令

試験研究用途を考慮した関連法令を主に挙げております。化学物質以外については、一部の情報のみ提供しています。 製品を安全かつ合法的に使用することは、使用者の義務です。最新情報により修正される場合があります。WEBの反映には時間を要することがあるため、適宜SDSをご参照ください。

Jan Code

EMS0011-10ML-PW:
EMS0011-10ML:
EMS0011-VAR:
EMS0011PROC:
EMS0011-PH:
EMS0011-BULK:


試験成績書(COA)

製品のロット番号・バッチ番号を入力して、試験成績書(COA) を検索できます。ロット番号・バッチ番号は、製品ラベルに「Lot」または「Batch」に続いて記載されています。

以前この製品を購入いただいたことがある場合

文書ライブラリで、最近購入した製品の文書を検索できます。

文書ライブラリにアクセスする

資料

An optimized peptide mapping protocol using NISTmAb as a model monoclonal antibody, shorter incubation times, and improved digestion buffer to demonstrate minimal artificial asparagine deamidation and methionine oxidation.

This application note compares three different column chemistries from the BIOshell™ line of columns with superficially porous particles to evaluate their performance in peptide mapping.

Workflows for monoclonal antibody adalimumab characterization ensure drug safety and efficacy through critical quality attribute analysis.

Method development for protein fingerprinting of AAV serotype 5 using both intact mass analysis and peptide mapping, to determine critical quality attributes for gene therapy, utilizing three different columns.

プロトコル

An optimized LC-MS/MS based workflow for low artifact tryptic digestion and peptide mapping of monoclonal antibody, adalimumab (Humira) using filter assisted sample preparation (FASP).

A step-by-step protocol for released N-linked glycan analysis of the monoclonal antibody adalimumab, based on UHPLC-FLR-MS and procainamide labeling.

ライフサイエンス、有機合成、材料科学、クロマトグラフィー、分析など、あらゆる分野の研究に経験のあるメンバーがおります。.

製品に関するお問い合わせはこちら(テクニカルサービス)