Amino‐functionalized macroporous silica for efficient tryptic digestion in acidic solutions. Issue 21 (9th October 2013)

• Record Type: Journal Article
• Authors: Gan, Jinrui; Qian, Kun; Wan, Jingjing; Qiao, Liang; Guo, Weichao; Yang, Pengyuan; Girault, Hubert H.; Liu, Baohong
• Is Part Of: Proteomics. Volume 13:Issue 21(2013:Nov.)
• Page Start: 3117
• Page End: 3123
• Publication Date: 2013-10-09
• Subjects: Proteins -- Separation -- Periodicals; Bioinformatics -- Periodicals; Proteomics -- Periodicals; Genomes -- Periodicals; Molecular genetics -- Periodicals; 572.605
• DOI: 10.1002/pmic.201300108
• Languages: English
• ISSNs: 1615-9853

Abstract

<abstract abstract-type="main"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Amino‐functionalized macroporous silica foam (NH₂‐MOSF) has been developed as a host reactor to realize highly efficient proteolysis in acidic solutions where normal tryptic reactions cannot occur. The digestion protocol consists simply of adding the functionalized NH₂‐MOSF into the protein and trypsin solutions without altering the bulk pH or preloading the enzymes on the materials. With this protocol, digestion of sample fractions from LC can be efficiently realized in the acidic solutions directly. Digestion of a protein fraction extracted from rat liver tissue after LC separation was performed to illustrate this principle, where 103 proteins were successfully identified at pH 3 after 1.5 h of tryptic digestion.</p> </abstract>