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Articles tagged: retention time
Tutorial: Selecting the best DeepLC model
Mascot Server 3.0 can refine database search results using predicted retention times. The predictions are provided by DeepLC, and Mascot ships with twenty models for different gradient lengths, column types and peptide properties. This tutorial shows how to select the best model for your experiment. What is DeepLC? DeepLC is a retention time predictor that uses a convolutional neural network [...]
Global thinking: Label Free Quantitation in Mascot Distiller 2.8
Mascot Distiller supports a wide range of precursor based quantitation methods, including two label-free methods, which we call Replicate and Average. Version 2.8 makes significant improvements to the Replicate method. This is the method for label-free quantitation based on the relative intensities of extracted ion chromatograms (XICs) for precursors in multiple data sets aligned using mass and elution time. Replicate [...]
Retention time
Although retention time is not part of the Mascot scoring algorithm, it can be used by Percolator to improve the re-scoring of search results and it is important or essential information for many types of quantitation. This article examines how retention time is represented in the peak list, the search results, and various export formats. Mascot Server works off a [...]