Changyu Bio pTOPO cloning kits provide fast, reliable TA and blunt-end cloning for research laboratories. The pTOPO series (TA, TA Simple, Blunt, Blunt Simple) is designed for efficient PCR product cloning with minimal background — available at manufacturer-direct pricing.
Available product families

pTOPO-TA Cloning Kit
Cat# CYCV14 — TA cloning of PCR products with A-overhangs. Research Use Only.

pTOPO-TA Simple Cloning Kit
Cat# CYCV15 — Streamlined TA cloning protocol. Research Use Only.

pTOPO-Blunt Cloning Kit
Cat# CYCV16 — Blunt-end cloning for high-fidelity PCR products. Research Use Only.

pTOPO-Blunt Simple Cloning Kit
Cat# CYCV17 — Simplified blunt-end cloning workflow. Research Use Only.
Typical research applications
- PCR product cloning and library construction
- Gene synthesis and mutagenesis workflows
- Sequencing template preparation
- Educational molecular biology courses
Why source from Changyu Bio
- Manufacturer-direct pricing — better unit cost than brand resale channels
- Bulk and institutional orders — volume pricing for universities and distributors
- Export support — packing, documents, and delivery to Africa and Southeast Asia
- Consistent quality — manufactured under controlled processes, QC-tested per batch
Frequently asked questions
- What insert size ranges are supported? The pTOPO series supports inserts typically from 0.1–5 kb depending on the kit — send your insert size for the recommended format.
- Do the kits include competent cells? Competent cells can be included on request — specify your transformation protocol when requesting a quote.
- Can you supply kits in bulk for teaching labs? Yes — bulk kit packs for teaching laboratories and distributor programs are available.
- Are these kits for clinical use? No — all products are for Research Use Only (RUO). Not for diagnostic, therapeutic, or clinical use.
Request a quotation · Email market@changyubio.com · WhatsApp +86 18665577773
All products are for Research Use Only (RUO). Not for diagnostic, therapeutic, or clinical use.