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- Last added
- 2026-09-29
Featured Beijing T&L Biotechnology manuals
Beijing T&L Biotechnology TL-643 Recombinant Human TGF-β1 Datasheet
This document describes the recombinant human Transforming Growth Factor‑β1 (TL‑643) produced in human HEK293 cells. It lists the product name, model number, expression host, molecular weight, purity, endotoxin level, and bioactivity measurements.
The sheet also includes instructions for use, stability and storage conditions, the mechanism of action of TGF‑β1, and references to scientific literature supporting its activity. This manual is written in Chinese.
Covers: Product Description · Product Information · Usage Instructions · Stability and Storage · Mechanism of Action · References
Beijing T&L Biotechnology TL-698 Recombinant Human B7-2/CD86 Protein Product Leaflet
The TL-698 product is a recombinant human B7-2/CD86 protein expressed in human HEK293 cells. It consists of 221 amino acids, has a predicted molecular weight of 27.2 kDa, and is supplied as a lyophilized powder containing 6% mannitol in sterile PBS (pH 7.4). Purity is ≥95% as confirmed by SDS‑PAGE and HPLC, and endotoxin levels are below 0.1 EU/µg.
The protein is biologically active, binding human CTLA‑4 in a linear range of 20‑200 ng/mL. Lyophilized material can be stored at 4 °C for up to 24 months; once reconstituted, it should be kept at –20 °C for 6‑12 months and protected from repeated freeze‑thaw cycles. The leaflet also includes the mechanism of CD86 in immune activation and relevant literature references. This manual is written in Chinese.
Covers: Product Description · Product Information · Usage Instructions · Stability and Storage · Mechanism of Action · References
Latest Beijing T&L Biotechnology manuals
Beijing T&L Biotechnology TL-643 Recombinant Human TGF-β1 Datasheet
Datasheet 1 pages · 288 KB · ZHThe datasheet provides specifications, purity, bioactivity, storage, and usage information for recombinant human TGF-β1 (TL-643) from Beijing T&L Biotechnology.
Beijing T&L Biotechnology TL-698 Recombinant Human B7-2/CD86 Protein Product Leaflet
Product Leaflet 1 pages · 252 KB · ZHThe TL-698 recombinant human B7-2/CD86 protein leaflet provides expression host, purity, molecular weight, storage, activity and reference information.
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Questions answered in Beijing T&L Biotechnology manuals
What is the recommended storage condition for the lyophilized TL‑643 product?
Store the lyophilized sample at 4 °C for up to 24 months; reconstituted liquid should be kept at –20 °C for 6‑12 months and avoid repeated freeze‑thaw cycles.
From: Beijing T&L Biotechnology TL-643 Recombinant Human TGF-β1 Datasheet
What purity level does TL‑643 meet?
The product has a purity of at least 95%, confirmed by SDS‑PAGE gel and high‑performance liquid chromatography analysis.
From: Beijing T&L Biotechnology TL-643 Recombinant Human TGF-β1 Datasheet
What cell line is used to produce TL-698?
TL-698 is expressed in human HEK293 cells.
From: Beijing T&L Biotechnology TL-698 Recombinant Human B7-2/CD86 Protein Product Leaflet
How should the lyophilized product be stored?
Lyophilized samples can be stored at 4 °C for up to 24 months; reconstituted solution should be kept at –20 °C for 6‑12 months and protected from repeated freeze‑thaw cycles.
From: Beijing T&L Biotechnology TL-698 Recombinant Human B7-2/CD86 Protein Product Leaflet