組換えタンパク質

Q: What does “carrier-free” mean?

Carrier-free proteins contain no stabilizers (e.g., BSA), reducing interference in sensitive assays and enabling precise mass-based dosing. Ideal for SPR, BLI, and cell-based functional studies.

Q: Which expression system should I choose?

HEK293/CHO: Native folding, glycosylation, and disulfide bonds — ideal for receptor-binding and functional studies.E. coli: High yield and cost-effective, best for structural screening.Insect/Yeast: Balanced PTMs with good scalability.

Q: What endotoxin level is recommended for immune cell assays?

≤0.1 EU/µg is the standard for immune cell culture, T-cell expansion, and in vivo studies. Every lot ships with LAL-verified endotoxin data on the CoA.

Q: How to reconstitute lyophilized proteins?

Use sterile, endotoxin-free buffer. Gently swirl — avoid vortexing. Aliquot into single-use volumes and store at -80°C to prevent freeze-thaw damage.

Q: Are these proteins RUO or GMP-grade?

Unless explicitly labeled, all products are Research Use Only (RUO). For GMP-grade requirements, contact our team for custom manufacturing options.

Recombinant Proteins

Discover 10,000+ high-activity recombinant proteins with exceptional purity (≥95%), stability, and verified bioactivity — supporting research in drug discovery, immunology, oncology, and molecular biology. Produced in HEK293, CHO, E. coli, insect, and yeast expression systems with endotoxin controlled to ≤0.1 EU/µg. Each lot is QC-verified (SDS-PAGE, SEC-HPLC, endotoxin, and functional assays). Available in carrier-free, His-tag, and Fc-chimera formats.RUO

研究者がabinScienceを選ぶ理由

95%以上の高純度 & 低エンドトキシン Typical ≤0.1 EU/µg verified by LAL assay. Lot-specific CoA with SDS-PAGE and SEC-HPLC data included.

生物活性検証済み Functional validation via ELISA or cell-based proliferation/signaling assay. High batch-to-batch consistency (<20% CV).

5つの発現システム HEK293 & CHO for native PTMs; E. coli for high-yield screening; insect and yeast for balanced cost and glycosylation.

柔軟なフォーマット Carrier-free (no BSA), His-tagged, Fc-chimera, biotinylated; lyophilized or liquid — choose the best fit for your assay.

スケーラブルで信頼性の高い From µg to mg quantities with consistent lead times. Global cold-chain shipping with dry-ice packaging.

適切な製品の選び方

用途 Comprehensive portfolio covering proteins, antibodies, and kits for diverse research applications.

発現システム In-house development from gene synthesis to final QC — full traceability.

タグとフォーマット Dual ISO certification ensures consistent manufacturing quality and regulatory readiness.

エンドトキシン Match your assay tolerance — ≤0.1 EU/µg is recommended for immune cell culture and in vivo studies. Always verify via the lot-specific CoA.

ドキュメントとQCデータ

Download Certificate of Analysis (CoA), SDS-PAGE gels, SEC-HPLC chromatograms, and reconstitution protocols on each product page. All QC data is lot-specific and archived for traceability.

よくある質問

「キャリアフリー」とはどういう意味ですか？

Carrier-free proteins contain no stabilizers (e.g., BSA), reducing interference in sensitive assays and enabling precise mass-based dosing. Ideal for SPR, BLI, and cell-based functional studies.

どの発現システムを選ぶべきですか？

HEK293/CHO: Native folding, glycosylation, and disulfide bonds — ideal for receptor-binding and functional studies.
E. coli: High yield and cost-effective, best for structural screening.
Insect/Yeast: Balanced PTMs with good scalability.

免疫細胞アッセイには、どの程度のエンドトキシンレベルが推奨されますか？

≤0.1 EU/µg is the standard for immune cell culture, T-cell expansion, and in vivo studies. Every lot ships with LAL-verified endotoxin data on the CoA.

凍結乾燥タンパク質を再構成するにはどうすればよいですか？

Use sterile, endotoxin-free buffer. Gently swirl — avoid vortexing. Aliquot into single-use volumes and store at -80°C to prevent freeze-thaw damage.

これらのタンパク質は研究用 (RUO) ですか、それとも GMP グレードですか？

Unless explicitly labeled, all products are Research Use Only (RUO). For GMP-grade requirements, contact our team for custom manufacturing options.