PROVETOP

PROVETOP (Suzhou Puweituo Biotechnology Co., Ltd.) is a life sciences company providing research reagents and services for biotechnology and biomedical research. Its product range includes recombinant proteins, immune checkpoint proteins, biotinylated proteins, Fc fusion proteins, antibody tools, cytokines, and cell culture factors.

The company offers protein expression and preparation services, from construct and expression-system assessment through production, purification, characterization, and quality control. Available expression platforms include mammalian, insect, yeast, and prokaryotic systems, with options for secreted proteins, extracellular domains, Fc fusions, and custom antigens.

PROVETOP also provides phage display antibody screening. Services include antigen presentation, library construction and assessment, screening strategy design, enrichment, positive-clone validation, and preliminary affinity and functional evaluation. Candidate antibodies can be expressed and purified, then assessed for activity and specificity. Depending on the agreed project scope, deliverables may include purity and binding data, activity results, sequence files, reports, and records of project stages. PROVETOP emphasizes traceable workflows and direct communication with its technical team.