Resources

Proteomics Databases



Metabolomics Databases

• • What Drives Cost in a Peptide Mapping Service?

  Learn what drives peptide mapping service cost, including product complexity, digestion strategy, sample number, PTM scope, reporting depth, and rework risk for biologics projects.

• • Peptide Mapping Service or In-House Testing?

  Compare peptide mapping service with in-house LC-MS/MS or HPLC testing by documentation needs, internal capacity, reporting depth, and project phase for biologics characterization.

• • Before You Submit: Peptide Mapping Service Essentials

  Prepare your peptide mapping service submission with this pre-submission checklist covering reporting goals, reference sequence, sample purity, buffer review, and expected deliverables.

• • Peptide Mapping Service for Biologics Characterization

  Learn how peptide mapping service supports biologics characterization through LC-MS/MS sequence coverage, PTM localization, and comparability evidence for therapeutic proteins.

• • PhIP-Seq Allergen Antibody Profiling Service: Support for Candidate Discovery and Validation Planning

  In allergen-related antibody studies, the main difficulty is often not whether antibody reactivity can be detected, but whether that reactivity can be converted into a workable set of candidates for downstream investigation. Many projects begin with a broad biological question rather than a predefined target.

• • Selecting PhIP-Seq for Allergen-Related Antibody Profiling: Candidate Prioritization Before Targeted Validation

  Selecting PhIP-Seq for allergen-related antibody profiling helps define candidate priorities before targeted validation by supporting peptide-level reactivity analysis, protein-level ranking, and downstream study planning.

• • Common Pitfalls and Optimization Strategies in Shotgun Proteomics Analysis

  Shotgun proteomics is one of the core technologies in modern proteomics research. Owing to its high-throughput capacity and broad proteome coverage, it plays an important role in many areas of the life sciences. However, in practical applications, researchers often encounter challenges related to sample preparation, instrument configuration, and data analysis, which may affect the depth of proteome coverage, data accuracy, and reproducibility. This article systematically summarizes common misconceptio......

• • What Is Site-Specific Histone Ubiquitination Analysis?

  Histone ubiquitination is an important epigenetic modification that regulates chromatin structure and gene expression through the covalent attachment of the small regulatory protein ubiquitin to lysine residues on histones. Ubiquitination at different histone sites has distinct functions in transcriptional regulation, chromatin remodeling, and DNA damage repair, and its role in gene silencing or activation often depends on the modification status of specific sites. Site-specific histone ubiquitination......

• • Western Blot Housekeeping Protein: Principles, Applications, and Method Considerations

  Technical guide for Western Blot Housekeeping Protein: Principles, Applications, and Method Considerations.

• • Antibody Characterization Methods: Principles, Applications, and Method Considerations

  Technical guide for Antibody Characterization Methods: Principles, Applications, and Method Considerations.