Integration of on-line protein digestion by trypsin in capillary electrophoresis by means of electrophoretically mediated microanalysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F09%3A00029144" target="_blank" >RIV/00216224:14310/09:00029144 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Integration of on-line protein digestion by trypsin in capillary electrophoresis by means of electrophoretically mediated microanalysis

Popis výsledku v původním jazyce

In this work, electrophoretically mediated microanalysis (EMMA) was applied to the in-capillary tryptic digestion of proteins for proteomic purposes. Compared to classical in-solution tryptic digestion or the trypsin reactor commonly used for this purpose, the EMMA based method is rapid, can be automated and requires only small amounts of trypsin and protein preparations. Moreover, the protein digestion and the analysis of the resulting peptides are integrated into one procedure. A combination of the EMMA methodology with a partial filling technique was used in this study, since the pH optimum of the trypsin reaction differs strongly from the best pH for the CE separation of peptides. In this setup, part of the capillary is filled with the best bufferfor the tryptic digestion (50 mM Tris-HCl buffer, pH 8.5) whereas the rest of the capillary is filled with the background electrolyte optimal for peptide separation (0.1 M phosphate buffer, pH 2.5).

Název v anglickém jazyce

Integration of on-line protein digestion by trypsin in capillary electrophoresis by means of electrophoretically mediated microanalysis

Popis výsledku anglicky

In this work, electrophoretically mediated microanalysis (EMMA) was applied to the in-capillary tryptic digestion of proteins for proteomic purposes. Compared to classical in-solution tryptic digestion or the trypsin reactor commonly used for this purpose, the EMMA based method is rapid, can be automated and requires only small amounts of trypsin and protein preparations. Moreover, the protein digestion and the analysis of the resulting peptides are integrated into one procedure. A combination of the EMMA methodology with a partial filling technique was used in this study, since the pH optimum of the trypsin reaction differs strongly from the best pH for the CE separation of peptides. In this setup, part of the capillary is filled with the best bufferfor the tryptic digestion (50 mM Tris-HCl buffer, pH 8.5) whereas the rest of the capillary is filled with the background electrolyte optimal for peptide separation (0.1 M phosphate buffer, pH 2.5).

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CE - Biochemie

OECD FORD obor

—

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electrophoresis

ISSN

0173-0835

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

—

Kód UT WoS článku

000268626900017

EID výsledku v databázi Scopus

—