Improving the performance of proteomic analysis via VAILase cleavage and 193-nm ultraviolet photodissociation.
Anal Chim Acta
; 1155: 338340, 2021 Apr 22.
Article
en En
| MEDLINE
| ID: mdl-33766312
ABSTRACT
Further improving the proteomic identification coverage and reliability is still challenging in the mass spectrometry (MS)-based proteomics. Herein, we combine VAILase and trypsin digestion with 193-nm ultraviolet photodissociation (UVPD) and higher-energy collision dissociation (HCD) to improve the performance of bottom-up proteomics. As VAILase exhibits high complementarity to trypsin, the proteome sequence coverage is improved obviously whether with HCD or 193-nm UVPD. The high diversity of fragment ion types produced by UVPD contributes to the improvements of identification reliability for both trypsin- and VAILase-digested peptides with an average XCorr score improvement of 10%.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Asunto principal:
Proteómica
/
Espectrometría de Masas en Tándem
Tipo de estudio:
Prognostic_studies
Idioma:
En
Revista:
Anal Chim Acta
Año:
2021
Tipo del documento:
Article
País de afiliación:
China