Detailed Information on Publication Record
2021
Trimethylacetic Anhydride-Based Derivatization Facilitates Quantification of Histone Marks at the MS1 Level
KUCHAŘÍKOVÁ, Hana, Pavlína DOBROVOLNÁ, Gabriela LOCHMANOVÁ and Zbyněk ZDRÁHALBasic information
Original name
Trimethylacetic Anhydride-Based Derivatization Facilitates Quantification of Histone Marks at the MS1 Level
Authors
KUCHAŘÍKOVÁ, Hana (203 Czech Republic, belonging to the institution), Pavlína DOBROVOLNÁ (203 Czech Republic, belonging to the institution), Gabriela LOCHMANOVÁ (203 Czech Republic, belonging to the institution) and Zbyněk ZDRÁHAL (203 Czech Republic, guarantor, belonging to the institution)
Edition
Molecular and Cellurar Proteomic, American Society for Biochemistry and Molecular Biology, 2021, 1535-9476
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10608 Biochemistry and molecular biology
Country of publisher
United States of America
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 5.911 in 2020
RIV identification code
RIV/00216224:14740/21:00119599
Organization unit
Central European Institute of Technology
UT WoS
000674937100001
Keywords in English
POSTTRANSLATIONAL MODIFICATIONS; DOWN PROTEOMICS; PROPIONYLATION; IDENTIFICATION; METHYLATION; ACETYLATION
Tags
International impact, Reviewed
Změněno: 10/10/2024 14:16, Ing. Martina Blahová
Abstract
V originále
Histone post-translational modifications (hPTMs) are epigenetic marks that strongly affect numerous processes, including cell cycling and protein interactions. They have been studied by both antibody- and MS-based methods for years, but the analyses are still challenging, mainly because of the diversity of histones and their modifications arising from high contents of reactive amine groups in their amino acid sequences. Here, we introduce use of trimethylacetic anhydride (TMA) as a new reagent for efficient histone derivatization, which is a requirement for bottom-up proteomic hPTM analysis. TMA can denyatize unmodified amine groups of lysine residues and amine groups generated at peptide N-termini by trypsin digestion. The derivatization is facilitated by microwave irradiation, which also reduces incubation times to minutes. We demonstrate that histone derivatization with TMA reliably provides high yields of fully derivatized peptides and thus is an effective alternative to conventional methods. TMA afforded more than 98% and 99% labeling efficiencies for histones H4 and H3, respectively, thereby enabling accurate quantification of peptide forms. Trimethylacetylation substantially improves chromatographic separation of peptide forms, which is essential for direct quantification based on signals extracted from MS1 data. For this purpose, software widely applied by the proteomics community can be used without additional computational development. Thorough comparison with widely applied propionylation highlights the advantages of TMA-based histone derivatization for monitoring hPTMs in biological samples.
Links
GF19-29701L, research and development project |
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LM2018127, research and development project |
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LM2018140, research and development project |
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90127, large research infrastructures |
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