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Protocols and Applications

Protocol

Detect Specific Protein Aggregates in Biologic Formulations with the Aura Immunoassay

Biologic co-formulations target multiple pharmacologically active sites to increase therapy efficacy. However, either biologic can be a source of protein aggregation that can negatively influence the product’s safety, efficacy, and therapy. Aura systems are the only particle analyzer that can pinpoi... More


Protocol

AAV Aggregate Quantitation and Identification with the Aura System

Adeno-associated viruses (AAVs) have made the promise of gene therapy a reality by enabling safe, targeted delivery of curative genetic payloads. The formation of aggregated viral vector is an important critical quality attribute to measure because they lead to adverse immunogenic events and are an ... More


Protocol

Single-Cell Intracellular Proteome: HeLa Cell Protocol

Overview of Protocol:Day 1-3: Cryopreserved HeLa cells are thawed and cultured for 72 hours.Day 4: Staining and stimulating of HeLa cells followed by immediate loading onto IsoCode Chip... More


Protocol

IsoCode Single-Cell Adaptive Immune: Human Bispecific Protocol

Overview of ProtocolDay 1: Cryopreserved T cells are thawed and cultured overnight in the presence of IL-2.Day 2: Enrichment, Staining and Antigen Stimulation of CD4+ and/or CD8+ T cells for 36-48 hours.Day3: Loading of T cells onto IsoCode chip.... More


Protocol

High-Throughput Detection of Degraded Polysorbate in Biological Formulations with FMM

Excipients like polysorbate are used in the majority of biologic products to improve stability. However, the polysorbate itself can degrade, impairing the stability of the API and contributing an additional aggregate source that can elicit an immunogenic response. Traditionally, monitoring only poly... More


Protocol

Transfecting Edit-R™ Cas9 mRNA with Synthetic Guide RNA in Cultured Mammalian Cells

This is an abbreviated protocol for transfecting Edit-R™ Cas9 mRNA (Cat #CAS11195, #CAS11859, or #CAS11860) with synthetic guide RNA into cultured mammalian cells using DharmaFECT™ Duo transfection reagent (Cat #T-2010-xx). Synthetic guide RNA can be either synthetic single guide RNA, or synthetic c... More


Protocol

Investigating the increased lifespan in C. elegans daf-2 mutants by 4D-Lipidomics™

The small nematode Caenorhabditis elegans is one of the premier biomedical model organisms and employed in many aspects of basic and applied science.... More


Protocol

Next-generation MALDI top-down sequencing of protein biotherapeutics – expanding the scope of timsTOF technology

This new method takes advantage of Trapped Ion Mobility Spectrometry (TIMS), to further enhance MALDI-TDS by adding another dimension of separation in the gas phase.High confidence N- and C-terminal sequencing specifically are enhanced by combining high resolution (~ 60,000 RP) and 2 ppm mass accura... More


Protocol

Achieving Reproducible and Automated Region-Specific Lipid Annotations using CCS-aware SpatialOMx®

The CCS-aware SpatialOMx® workflow opens new dimensions by combining the molecular and spatial information measured by MALDI-TIMS Imaging with highly confident 4D-Omics annotations. MetaboScape® 2021b and SCiLS™ Lab 2021a provide the interface to match data from both ionization techniques and enable... More


Protocol

How to Determine Glycan Profiles of Biopharmaceuticals from Peptide Mapping Data

Glycosylation is a common critical quality attribute (CQA) of therapeutic proteins and needs to be characterized during product development. Typically, this analysis is conducted after enzymatic release and tagging of the glycans followed by fluorescence and MS detection. However, that approach lose... More