2021
Trimethylacetic Anhydride-Based Derivatization Facilitates Quantification of Histone Marks at the MS1 Level
KUCHAŘÍKOVÁ, Hana, Pavlína DOBROVOLNÁ, Gabriela LOCHMANOVÁ a Zbyněk ZDRÁHALZákladní údaje
Originální název
Trimethylacetic Anhydride-Based Derivatization Facilitates Quantification of Histone Marks at the MS1 Level
Autoři
KUCHAŘÍKOVÁ, Hana (203 Česká republika, domácí), Pavlína DOBROVOLNÁ (203 Česká republika, domácí), Gabriela LOCHMANOVÁ (203 Česká republika, domácí) a Zbyněk ZDRÁHAL (203 Česká republika, garant, domácí)
Vydání
Molecular and Cellurar Proteomic, American Society for Biochemistry and Molecular Biology, 2021, 1535-9476
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 5.911 v roce 2020
Kód RIV
RIV/00216224:14740/21:00119599
Organizační jednotka
Středoevropský technologický institut
UT WoS
000674937100001
Klíčová slova anglicky
POSTTRANSLATIONAL MODIFICATIONS; DOWN PROTEOMICS; PROPIONYLATION; IDENTIFICATION; METHYLATION; ACETYLATION
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 10. 10. 2024 14:16, Ing. Martina Blahová
Anotace
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.
Návaznosti
GF19-29701L, projekt VaV |
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LM2018127, projekt VaV |
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LM2018140, projekt VaV |
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90127, velká výzkumná infrastruktura |
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