Publications de Unige Anna Laskay

Gold finger formation studied by high-resolution mass spectrometry and in silico methods

Yury Tsybin, Angela Casini, Unige Anna Laskay

High-resolution mass spectrometry and quantum mechanics/molecular mechanics studies were employed for characterizing the formation of two gold finger (GF) domains from the reaction of zinc fingers (ZF) with gold complexes. The influence of both the gold ox ...

Royal Society of Chemistry2015

On the use of electron capture rate constants to describe electron capture dissociation mass spectrometry of peptides

Yury Tsybin, Konstantin Zhurov, Aleksey Vorobyev, Unige Anna Laskay

Electron capture dissociation (ECD) tandem mass spectrometry (MS/MS) is a powerful analytical tool for peptide and protein structure analysis. The product ion abundance (PIA) distribution in ECD MS/MS is known to vary as a function of electron irradiation ...

Im Publications2015

Extended Bottom-Up Proteomics with Secreted Aspartic Protease Sap9

Yury Tsybin, Kristina Srzentic, Unige Anna Laskay

We investigate the benefits and experimental feasibility of approaches enabling the shift from short (1.7 kDa on average) peptides in bottom-up proteomics to about twice longer (similar to 3.2 kDa on average) peptides in the so-called extended bottom-up pr ...

Elsevier Science Bv2014

Advantages of Extended Bottom-Up Proteomics Using Sap9 for Analysis of Monoclonal Antibodies

Yury Tsybin, Luca Fornelli, Kristina Srzentic, Daniel Ayoub, Unige Anna Laskay

Despite the recent advances in structural analysis of monoclonal antibodies with bottom-up, middle-down, and top-down mass spectrometry (MS), further improvements in analysis accuracy, depth, and speed are needed. The remaining challenges include quantitat ...

Amer Chemical Soc2014

Empirical multi-dimensional space for scoring peptide spectrum matches in shotgun proteomics

Yury Tsybin, Unige Anna Laskay

Data-dependent tandem mass spectrometry (MS/MS) is one of the main techniques for protein identification in shotgun proteomics. In a typical LC MS/MS workflow, peptide product ion mass spectra (MS/MS spectra) are compared with those derived theoretically f ...

Amer Chemical Soc2014

Practical Considerations for Improving the Productivity of Mass Spectrometry-based Proteomics

Yury Tsybin, Anton Kozhinov, Luca Fornelli, Kristina Srzentic, Unige Anna Laskay, Oxana Upir

Mass spectrometry (MS) is currently the most sensitive and selective analytical technique for routine peptide and protein structure analysis. Top-down proteomics is based on tandem mass spectrometry (MS/MS) of intact proteins, where multiply charged precur ...

Schweizerische Chemische Gesellschaft2013

Principles of electron capture and transfer dissociation mass spectrometry applied to peptide and protein structure analysis

Yury Tsybin, Matthew Wodrich, Luca Fornelli, Konstantin Zhurov, Unige Anna Laskay

This tutorial review describes the principles and practices of electron capture and transfer dissociation (ECD/ETD or ExD) mass spectrometry (MS) employed for peptide and protein structure analysis. ExD MS relies on interactions between gas phase peptide o ...

Royal Society of Chemistry2013

Proteome Digestion Specificity Analysis for Rational Design of Extended Bottom-up and Middle-down Proteomics Experiments

Yury Tsybin, Kristina Srzentic, Unige Anna Laskay

Mass spectrometry (MS)-based bottom-up proteomics (BUP) is currently the method of choice for large-scale identification and characterization of proteins present in complex samples, such as cell lysates, body fluids, or tissues. Technically, BUP relies on ...

Amer Chemical Soc2013