跳轉至內容
Merck
全部照片(1)

重要文件

EMS0011

Sigma-Aldrich

Low-Artifact Digestion Buffer

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

同義詞:

Hi-Fidelity Peptide Mapping Buffer

登入查看組織和合約定價


About This Item

分類程式碼代碼:
41105331
NACRES:
NA.25
暫時無法取得訂價和供貨情況

形狀

liquid

適合性

suitable for (peptide mapping)

運輸包裝

wet ice

儲存溫度

2-8°C

一般說明

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.

儲存類別代碼

12 - Non Combustible Liquids

水污染物質分類(WGK)

nwg

閃點(°F)

Not applicable

閃點(°C)

Not applicable


從最近期的版本中選擇一個:

分析證明 (COA)

Lot/Batch Number

未看到正確版本?

如果您需要一個特定的版本,您可以透過批號來尋找特定憑證。

已經擁有該產品?

您可以在文件庫中找到最近購買的產品相關文件。

存取文件庫

文章

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.

單株抗體阿達木單抗特性分析的工作流程,透過關鍵品質屬性分析,確保藥物的安全性和有效性。

查看全部

條款

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).

使用過濾器輔助樣品製備 (FASP) 優化 LC-MS/MS 工作流程,以進行單株抗體 adalimumab (Humira) 的低假象胰蛋白酶消化和勝肽圖譜製作。

以 UHPLC-FLR-MS 和普羅卡因胺標示為基礎,逐步分析單株抗體 adalimumab 的釋放 N-連接聚糖。

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

Questions

Reviews

No rating value

Active Filters

我們的科學家團隊在所有研究領域都有豐富的經驗,包括生命科學、材料科學、化學合成、色譜、分析等.

聯絡技術服務