ResourceSpectroscopy

Automated Acquisition of MALDI-ISD Spectra for the N- and C-terminal Sequence Determination of Intact Proteins

24 Apr 2013

For over 10 years, MALDI-Top-Down Sequencing (MALDI-TDS) of intact proteins has proved particularly useful for the determination of N- and C-terminal protein sequences. This technology note describes a procedure using the recently introduced 1,5-diaminonaphthalene (DAN) matrix and the new ultrafleXtreme™ MALDI-TOF/ TOF that automates the entire analysis - from sample preparation and data acquisition to N- and C-terminal sequence assignments.

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Mass SpectrometryMass spectrometry (MS) is a powerful analytical technique used to identify and quantify molecules based on the mass-to-charge ratio of gas-phase ions. It provides detailed information about the structure, composition, and properties of compounds and is widely used across fields such as environmental monitoring, materials science, drug discovery and development, food and beverage testing, and wider chemical research. Key MS techniques include tandem mass spectrometry (MS/MS), liquid chromatography–mass spectrometry (LS-MS) and inductively coupled plasma (ICP-MS). Choosing from these wide range of techniques and technologies can be a daunting task, so keep up to date with scientific applications, performance expectations, and customer reviews here all in one place. Visit our product directory to receive quotes direct from the manufacturer. ProteomicsProteomics is the systemic bioinformatics study of proteins and amino acids, including their structure, size, function and identification. Tools used in proteomics include chromatography, blotting and gels, protein arrays, mass spectrometry and ELISA and associated analysis software. Analyzers and proteomic systems should be sensitive, high resolution, fast and may be automated for high-throughput.MALDI-TOF MSMALDI-TOF mass spectrometers (matrix-assisted laser desorption/ionization time-of-flight) are used for the mass analysis of large molecules, including proteins, DNA, polymers and other macromolecules due to its relatively soft ionization, reducing fragmentation whilst allowing fast data acquisition. Tandem mass analyzers such as TOF/TOF systems can be used to increase resolution and sensitivity of your analysis. Find the best MALDI-TOF products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Protein BiologyThe analysis of protein expression, identity and function is vital for many areas of life science research and drug discovery. Some of the most commonly used techniques in protein analysis include Western blotting, electrophoresis and mass spectrometry.
Automated Acquisition of MALDI-ISD Spectra for the N- and C-terminal Sequence Determination of Intact Proteins