Are these proteins RUO or GMP?

All products are Research Use Only (RUO) unless explicitly labeled as GMP-grade.

Recombinant Proteins

Q: What does “carrier-free” mean?

Carrier-free proteins contain no stabilizers like BSA, minimizing interference in sensitive assays and enabling precise mass-based dosing.

Q: Which expression system should I choose?

HEK293/CHO for native PTMs and folding; E. coli for high-yield screening; insect/yeast for balanced cost and glycosylation.

Q: What endotoxin level is recommended?

≤0.1 EU/µg is standard for immune and cell-based assays. Always verify with lot-specific CoA.

Q: How to reconstitute lyophilized proteins?

Use sterile, endotoxin-free buffer. Gently swirl — do not vortex. Aliquot and store at -80°C to avoid freeze-thaw cycles.

Recombinant Proteins | 10,000+ High-Purity, Low Endotoxin | abinScience

Discover 10,000+ high-activity recombinant proteins with ≥95% purity, low endotoxin (≤0.1 EU/µg), and verified bioactivity. Produced in HEK293, CHO, E. coli, insect, and yeast systems. Ideal for immunotherapy, oncology, CAR-T, organoids, and structural biology. Each lot is QC-verified (SDS-PAGE, HPLC, endotoxin, and functional assays). Available in carrier-free, His-tag, Fc-chimera formats. RUO

Why Researchers Choose abinScience

≥95% Purity & Low Endotoxin Typical ≤0.1 EU/µg; lot-specific CoA with SDS-PAGE/HPLC

Verified Bioactivity Functional validation via ELISA or cell-based assay; high batch-to-batch consistency

Multiple Expression Systems HEK293 / CHO / E. coli / insect / yeast

Flexible Formats Carrier-free, His, Fc; lyophilized or liquid

Scalable & Reliable From µg to mg; global cold-chain shipping

How to Select the Right Protein

Application: Choose carrier-free for sensitive bioassays (e.g., CAR-T, organoids, SPR).
Expression System: Use HEK293/CHO for native post-translational modifications (PTMs).
Tag: His-tag for purification/screening; Fc-chimera for stability and avidity.
Endotoxin: Match assay tolerance — ≤0.1 EU/µg recommended for immune studies.

Documents & QC Data

Download CoA, SDS-PAGE, HPLC chromatograms, and reconstitution protocols on each product page. All data is lot-specific and archived.

FAQs

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.

Which expression system should I choose?

HEK293/CHO: Native folding and glycosylation (ideal for functional studies).
E. coli: High yield, cost-effective for screening.
Insect/Yeast: Balanced PTMs and scalability.

What endotoxin level is recommended?

≤0.1 EU/µg is standard for immune and cell-based assays. Always check the lot-specific CoA.

How to reconstitute lyophilized proteins?

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

RUO or GMP?

Unless explicitly labeled, all products are Research Use Only (RUO). GMP-grade available upon request.