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Home > Products > Recombinant Proteins > Bioactive Proteins

Explore our collection of activity-verified recombinant proteins — every product functionally validated through cell-based proliferation, inhibition, or receptor-binding assays with lot-specific ED50/EC50 values reported on the CoA. Covering cytokines, growth factors, chemokines, immune checkpoint targets, and receptor proteins across human, mouse, rat, and cynomolgus species. Produced in HEK293, CHO, E. coli, insect, and yeast expression systems with ≥95% purity. Available in carrier-free, His-tagged, Fc-chimera, and biotinylated formats for cell culture, drug screening, SPR/BLI, and antibody development workflows. All products are designated Research Use Only (RUO). RUO

Why Choose abinScience Bioactive Proteins

Verified Bioactivity, Not Just Purity Every lot tested via cell-based functional assay. ED50/EC50 values reported on CoA — so you know the protein works before you design your experiment.
Ultra-Low Endotoxin & High Purity Typical ≤0.1 EU/µg verified by LAL assay. ≥95% purity confirmed by SDS-PAGE and SEC-HPLC — suitable for sensitive immune cell culture and in vivo studies.
Optimized for Functional Assays Carrier-free formulations with no BSA interference. Ideal for T-cell expansion, organoid culture, CAR-T development, SPR/BLI binding kinetics, and drug candidate screening.
Batch-to-Batch Consistency Stringent QC with <20% CV across production lots. Multiple tag options (His, Fc, biotin) and scalable from µg to mg quantities with global cold-chain shipping.
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  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P13726

    Protein length

    Ser33-Glu251

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $260.00-$1,600.00
    Cat No. HB058031
  • Compare(max 4) Delete
    Expression system

    E. coli

    Accession

    P09038-4

    Protein length

    Pro143-Ser288

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $180.00-$1,120.00
    Cat No. HY398062
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P56704

    Protein length

    Ser19-Lys352 with a C-terminal linker GGGGGS and Human lgG1 (Asp104-Lys330)

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $420.00-$2,460.00
    Cat No. HX182011
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P01563

    Protein length

    Cys24-Glu188

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $180.00-$1,120.00
    Cat No. HF565011
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P05019

    Protein length

    Gly49-Ala118

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $180.00-$1,120.00
    Cat No. HY095061
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P01127

    Protein length

    Ser82-Thr190

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $420.00-$2,460.00
    Cat No. HF877011
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P04085&P01127

    Protein length

    Ser87-Thr211 & Ser82-Thr190

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $420.00-$2,460.00
    Cat No. HE078011
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P02787

    Protein length

    Val20-Pro698

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $180.00-$1,120.00
    Cat No. HY221011
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P02787

    Protein length

    Val20-Pro698

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $180.00-$1,120.00
    Cat No. HY221021
  • Compare(max 4) Delete
    Expression system

    Mammalian cells

    Accession

    P01344

    Protein length

    Ala25-Glu91

    Applications

    ELISA, Functional assay

    Species

    Homo sapiens (Human)

    Price(USD): $350.00-$2,106.00
    Cat No. HF572011