Technical Articles

This article reviews how pre-fusion stabilization changed RSV vaccine and antibody development, and what antigen reagent quality means for immunogenicity and potency testing workflows.

A practical guide to ELISA with pre-fusion RSV F antigen: coating conditions, epitope sensitivity of site Ø, plate treatment and control design that keeps conformational signals alive.

The RSV F protein rearranges irreversibly from pre- to post-fusion conformations, and most neutralizing epitopes only exist in the pre-fusion state. This article explains the conformational locking logic.

This article reviews internalization efficiency as an ADC-screenable metric: quantitative methods, assay boundaries and how pH-sensitive labeling standardizes antibody-internalization comparison.

A step-by-step troubleshooting guide for pH-sensitive internalization assays: labeling ratio, incubation conditions, washing steps and control design when signals stay flat.

pH-sensitive dyes stay quenched at neutral pH and brighten in acidic endosomes. This article explains the self-quenching principle, lysosomal pH and how labeled antibodies report internalization.

A selection guide for Claudin-4 reagents: full-length vs. extracellular domain, His-tag and detergent formulation, and how to pick a membrane protein prep for binding and structural work.

Claudin-4 is a tight-junction protein and an emerging drug target. This article explains its role in barrier integrity and why full-length, detergent-solubilized Claudin-4 matters for research.

This article systematically elaborates on the molecular characteristics of ActRIIA as a TGF-β superfamily receptor and its core functions in muscle growth, metabolic regulation, and tissue fibrosis, centered on the technical principles and application systems of the ActRIIA kinase activity inhibitor screening kit. It analyzes the critical role of kinase activity detection in ActRIIA-targeted drug screening and explores the application strategies of the inhibitor screening kit in compound activity evaluation and structure-activity relationship studies.

This article systematically elaborates on the technical principles and application systems of the ActRIIB kinase activity inhibitor screening kit, highlighting the central role of activin receptor type IIB in TGF-β superfamily signal transduction and its value as a drug target in disease areas. It analyzes key technical aspects of kinase activity detection in inhibitor screening and explores the application strategies of this kit in drug development for indications such as muscular atrophy, metabolic diseases, and anemia.