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Proteins & Protein Expression

Cosmo Bio USA offers a comprehensive and expertly curated Proteins & Protein Expression portfolio, supporting a wide range of research in molecular biology, proteomics, immunology, regenerative medicine, and synthetic biology. Cosmo Bio Co., Ltd. supplies a broad selection of recombinant proteins—cytokines, growth factors, enzymes, and fusion-tagged proteins—for functional assays, signaling studies, and protein–protein interaction analysis. CUSABIO adds a vast catalog of recombinant proteins validated for high-impact targets in cancer, immunology, neuroscience, and infectious disease, enabling reliable performance in both biochemical and cell-based assays. CUSAg enhances assay development with specialized recombinant proteins and small molecule–protein conjugates, ideal for sensitive detection in food safety and contaminant screening applications.

Cellular Engineering Technologies (CET) advances the offering with yeast-derived, xeno-free human growth factors such as M-CSF and RANKL—tailored for iPSC maintenance and osteoclast differentiation under defined, animal-free conditions. MBL International delivers essential immunology proteins, including MHC monomers and tetramers for antigen-specific T cell detection and vaccine research. Atlas Antibodies supports antibody validation and assay standardization with its recombinant PrEST antigens. Home Algae Biotechnology introduces algae-derived fluorescent proteins for sustainable, innovative bioimaging and biosensor applications. GSK completes the portfolio with the PUREfrex® system, a high-fidelity, cell-free protein synthesis platform ideal for precise protein expression, synthetic biology, and minimal cell system construction. Together, these rigorously validated tools position Cosmo Bio USA as a trusted provider of efficient, scalable, and application-specific protein research solutions across the life sciences.

 

  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Galanin peptides(GAL),partial (CSB-EP009191HU)

    Catalog No.(s): CSB-EP009191HU, CSB-EP009191HU-20, CSB-EP009191HU-100, CSB-EP009191HU-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Galanin peptides(GAL),partial (CSB-EP009191HU) Vendor Page Recombinant...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Mouse Fibroblast growth factor 5(Fgf5) (CSB-EP008632MO)

    Catalog No.(s): CSB-EP008632MO, CSB-EP008632MO-20, CSB-EP008632MO-100, CSB-EP008632MO-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Mouse Fibroblast growth factor 5(Fgf5) (CSB-EP008632MO) Vendor Page Recombinant...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Bovine Fibroblast growth factor 2(FGF2) (CSB-EP008625BO)

    Catalog No.(s): CSB-EP008625BO, CSB-EP008625BO-20, CSB-EP008625BO-100, CSB-EP008625BO-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Bovine Fibroblast growth factor 2(FGF2) (CSB-EP008625BO) Vendor Page Recombinant...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Cat Fibrinogen beta chain(FGB) (CSB-EP008608CA)

    Catalog No.(s): CSB-EP008608CA, CSB-EP008608CA-20, CSB-EP008608CA-100, CSB-EP008608CA-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Cat Fibrinogen beta chain(FGB) (CSB-EP008608CA) Vendor Page Recombinant Cat...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Bovine Fibrillin-1(FBN1),partial (CSB-EP008456BO)

    Catalog No.(s): CSB-EP008456BO, CSB-EP008456BO-20, CSB-EP008456BO-100, CSB-EP008456BO-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Bovine Fibrillin-1(FBN1),partial (CSB-EP008456BO) Vendor Page Recombinant Bovine...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Coagulation factor IX(F9),partial (CSB-EP007936HU1)

    Catalog No.(s): CSB-EP007936HU1, CSB-EP007936HU1-20, CSB-EP007936HU1-100, CSB-EP007936HU1-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Coagulation factor IX(F9),partial (CSB-EP007936HU1) Vendor...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Coagulation factor VIII(F8) (CSB-EP007932HU)

    Catalog No.(s): CSB-EP007932HU, CSB-EP007932HU-20, CSB-EP007932HU-100, CSB-EP007932HU-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Coagulation factor VIII(F8) (CSB-EP007932HU) Vendor Page Recombinant Human...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Mouse Ena/VASP-like protein(Evl) (CSB-EP007869MO)

    Catalog No.(s): CSB-EP007869MO, CSB-EP007869MO-20, CSB-EP007869MO-100, CSB-EP007869MO-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Mouse Ena/VASP-like protein(Evl) (CSB-EP007869MO) Vendor Page Recombinant Mouse...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Epoxide hydrolase 3(EPHX3),partial (CSB-EP007736HU)

    Catalog No.(s): CSB-EP007736HU, CSB-EP007736HU-20, CSB-EP007736HU-100, CSB-EP007736HU-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Epoxide hydrolase 3(EPHX3),partial (CSB-EP007736HU) Vendor...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Neutrophil elastase(ELANE) (CSB-EP007587HUe1)

    Catalog No.(s): CSB-EP007587HUe1, CSB-EP007587HUe1-20, CSB-EP007587HUe1-100, CSB-EP007587HUe1-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Neutrophil elastase(ELANE) (CSB-EP007587HUe1) Vendor Page Recombinant...

    $410.00 - $2,077.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Cytochrome P450 7A1(CYP7A1) (CSB-EP006460HU(A4))

    Catalog No.(s): CSB-EP006460HU(A4), CSB-EP006460HU(A4)-20, CSB-EP006460HU(A4)-100, CSB-EP006460HU(A4)-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Cytochrome P450 7A1(CYP7A1) (CSB-EP006460HU(A4)) Vendor Page Recombinant...

    $321.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Cathepsin B(CTSB),partial (CSB-EP006185HU1e1)

    Catalog No.(s): CSB-EP006185HU1e1, CSB-EP006185HU1e1-20, CSB-EP006185HU1e1-100, CSB-EP006185HU1e1-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Cathepsin B(CTSB),partial (CSB-EP006185HU1e1) Vendor Page Recombinant...

    $410.00 - $2,077.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Catenin beta-1(CTNNB1) (CSB-EP006169HUa0)

    Catalog No.(s): CSB-EP006169HUa0, CSB-EP006169HUa0-20, CSB-EP006169HUa0-100, CSB-EP006169HUa0-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Catenin beta-1(CTNNB1) (CSB-EP006169HUa0) Vendor Page Recombinant Human...

    $235.00 - $1,903.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Bovine Alpha-crystallin B chain(CRYAB) (CSB-EP006008BO)

    Catalog No.(s): CSB-EP006008BO, CSB-EP006008BO-20, CSB-EP006008BO-100, CSB-EP006008BO-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Bovine Alpha-crystallin B chain(CRYAB) (CSB-EP006008BO) Vendor Page Recombinant...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Carboxypeptidase N subunit 2(CPN2) (CSB-EP005899HU)

    Catalog No.(s): CSB-EP005899HU, CSB-EP005899HU-20, CSB-EP005899HU-100, CSB-EP005899HU-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Carboxypeptidase N subunit 2(CPN2) (CSB-EP005899HU) Vendor...

    $321.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Mesocricetus auratus Clusterin(CLU) (CSB-EP005595MRG)

    Catalog No.(s): CSB-EP005595MRG, CSB-EP005595MRG-20, CSB-EP005595MRG-100, CSB-EP005595MRG-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Mesocricetus auratus Clusterin(CLU) (CSB-EP005595MRG) Vendor Page Recombinant...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Mouse Creatine kinase M-type(Ckm) (CSB-EP005459MO)

    Catalog No.(s): CSB-EP005459MO, CSB-EP005459MO-20, CSB-EP005459MO-100, CSB-EP005459MO-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Mouse Creatine kinase M-type(Ckm) (CSB-EP005459MO) Vendor Page Recombinant Mouse...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Cyclin-dependent kinase 5(CDK5) (CSB-EP005067HUb0)

    Catalog No.(s): CSB-EP005067HUb0, CSB-EP005067HUb0-20, CSB-EP005067HUb0-100, CSB-EP005067HUb0-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Cyclin-dependent kinase 5(CDK5) (CSB-EP005067HUb0) Vendor Page Recombinant...

    $235.00 - $1,903.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human CD81 antigen(CD81),partial (CSB-EP004960HUb1)

    Catalog No.(s): CSB-EP004960HUb1, CSB-EP004960HUb1-20, CSB-EP004960HUb1-100, CSB-EP004960HUb1-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human CD81 antigen(CD81),partial (CSB-EP004960HUb1) Vendor Page Recombinant...

    $235.00 - $1,903.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Dog Catalase(CAT),partial (CSB-EP004563DO)

    Catalog No.(s): CSB-EP004563DO, CSB-EP004563DO-20, CSB-EP004563DO-100, CSB-EP004563DO-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Dog Catalase(CAT),partial (CSB-EP004563DO) Vendor Page Recombinant Dog...

    $407.00 - $2,589.00
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  • (Tris-Glycine gel) Discontinuous SDS-PAGE (reduced) with 5% enrichment gel and 15% separation gel.

    CUSABIO

    Recombinant Human Complement component C9(C9),partial (CSB-EP004259HU2)

    Catalog No.(s): CSB-EP004259HU2, CSB-EP004259HU2-20, CSB-EP004259HU2-100, CSB-EP004259HU2-1

    Product DescriptionProduct Specifications Product Specifications Source E.coli Documents & Links Documents & Links for Recombinant Human Complement component C9(C9),partial (CSB-EP004259HU2) Vendor...

    $321.00 - $2,589.00
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