J 2009

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

ZEISBERGEROVÁ, Marta, Andrea ADÁMKOVÁ and Zdeněk GLATZ

Basic information

Original name

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

Name in Czech

Integrace tryptického štěpení proteinů do CE pomocí metody EMMA

Authors

ZEISBERGEROVÁ, Marta (203 Czech Republic), Andrea ADÁMKOVÁ (203 Czech Republic) and Zdeněk GLATZ (203 Czech Republic, guarantor)

Edition

Electrophoresis, Weinheim, VHC, 2009, 0173-0835

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.077

RIV identification code

RIV/00216224:14310/09:00029144

Organization unit

Faculty of Science

UT WoS

000268626900017

Keywords in English

Proteomics; Tryptic digestion; Electrophoretically mediated microanalysis; EMMA; Partial filling technique; Sandwich injection

Tags

International impact, Reviewed
Změněno: 9/4/2010 10:03, Mgr. Marta Pelcová, Ph.D.

Abstract

V originále

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 buffer for 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).

In Czech

Byla vypracována metoda pro integrace tryptického štěpení proteinů do CE pomocí metody EMMA.

Links

GA203/06/0047, research and development project
Name: Využití kapilární elektroforézy pro studium metabolismu léčiv
Investor: Czech Science Foundation, Capillary electrophoresis as a tool for the drug-metabolism studies
LC06023, research and development project
Name: Integrované bioanalytické technologie pro mikroanalýzy a diagnostiku s využitím LIF a hmotnostní spektrometrie
Investor: Ministry of Education, Youth and Sports of the CR
MSM0021622413, plan (intention)
Name: Proteiny v metabolismu a při interakci organismů s prostředím
Investor: Ministry of Education, Youth and Sports of the CR, Proteins in metabolism and interaction of organisms with the environment