Technical Articles

FGF-R4 (CD334) is an FGF receptor tyrosine kinase whose ligand recognition is shaped by FGF19 and KLB. This article explains receptor characteristics, ligand selection and SPR/ELISA-based binding validation of recombinant human FGF-R4.

Biotin-labeled CD8alpha-beta heterodimer is a core tool for co-receptor binding studies. This article reviews site-specific biotinylation principles, HEK293 recombinant antigen quality control data, ELISA/SPR/BLI platform parameters, and three types

The key challenges of Caprin-1 binding assays are sequence alignment across three species and interpretation of anomalous migration. This article reviews QC evidence of CHO-expressed Caprin-1, ELISA EC50 benchmarks, SPR/BLI parameters and the logic o

The main challenges of CHI3L1 binding assays are glycosylation-dependent epitopes and endotoxin interference. This article reviews the QC evidence of HEK293-expressed recombinant CHI3L1, platform parameters for ELISA, SPR and cell-based assays, and t

A tool-oriented guide to biotinylated CD3 epsilon-gamma binding experiments: asymmetric tag design, four QC evidence pieces from SDS-PAGE, SEC and ELISA, platform parameters for SPR, ELISA and flow cytometry, and troubleshooting paths for three class

A tool-oriented guide to biotinylated IL-2 binding experiments: site-specific biotinylation principles, streptavidin capture parameters, platform setups for SPR, ELISA and flow cytometry, and troubleshooting paths for three common data anomalies.

A tool-oriented guide to PRLR binding experiments: QC evidence for the His&Fc fusion extracellular domain, platform parameters for ELISA, SPR and BLI, affinity interpretation conventions, and troubleshooting paths for three common data anomalies.

A tool-oriented guide to CD3εδ heterodimer binding experiments: immobilization direction, SEC purity as a conformation proxy, ELISA and SPR platforms, antibody clone specificity across species, and how to read non-parallel curves between human and mo

A tool-oriented guide to FGFR4 binding experiments: the KLB co-receptor prerequisite, D2-D3 integrity quality control, SPR/ELISA parameter settings and troubleshooting paths for three types of data anomalies.

A tool-oriented guide to CD3εγ heterodimer binding experiments: antigen selection, ELISA and SPR parameters, SDS-PAGE/SEC quality control interpretation, and troubleshooting paths for three common data anomalies.