Your Good Partner in Biology Research

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CD47｜Proteinase K｜EGFR｜BCMA｜PD-L1｜CD276｜ACE2｜TMPRSS2｜Exosome Isolation Kits

SARS-CoV-2: Nucleoprotein｜Spike protein｜S (RBD) protein｜N Antibody｜S Antibody｜N IgG Ab ELISA Kit

Proteinase K Recombinant Protein

High yielding • High purity • Stable activity

Animal free • Nuclease-free • Stable supply

Novel Coronavirus (SARS-CoV-2) ELISA Kits For Research Use Only

High Sensitivity, High Specificity, and High Security.

2019 Novel Coronavirus (SARS-CoV-2)

CUSABIO provides related antigen proteins (N and S proteins), antibodies (N and S antibodies) and ELISA Kits (antigen detection, antibody detection and neutralizing antibody kits) with high quality.

Only USD$150/kit (free shipping)

CUSABIO provides 24T trial size for all ELISA kits except food safety ELISA kits.

CUSABIO Exosome isolation kit provides a simple and reliable method to extract intact exosomes from the cell culture supernatant, serum, plasma, latex, urine, saliva.

● High Purity
● High Yield
● High Efficiency

Try the additional antibodies with only $49.9/20μg(μl)

Thousands of high quality Free monoclonal antibodies for application, including PD-L1, OCT4, TBA1A, NES, NANOG, CDH1, CD14, CD19, CD31, CD44, CD146, HA-Tag, Flag-Tag, E-Tag, GFAP, GAPDH, etc.

Proteinase K
SARS-CoV-2 ELISA Kit
2019 Novel Coronavirus
24T ELISA Kit Trial Size
Exosome Isolation Kit
Get one trial sample for free!

CUSABIO, Your Good Partner in Biology Research

As a manufacturer of antibodies, proteins, ELISA kits and related reagents, our only mission is to provide the best products and related custom service to researchers so that they can have a good starting for the next breakthrough.

Why Choose CUSABIO

Cusabio offers RT-PCR Primers, Clone, and Tools Enzyme for Molecular Biology research.

100% Quality Guarantee

CUSABIO puts quality first.
We are here to promise you all CUSABIO products have passed the QC standard described in the COA.
If any products fail to work as stated, our technical team will work with you to fix the issue. If the process doesn't go well, CUSABIO will provide you with a free replacement or a 100% refund for the product.

Global Presence

After more than 10 years'effort, CUSABIO has distributors covering most countries and areas all over the world. They can always provide efficient services for you.

Affordable Price

CUSABIO always keeps on improving production efficiency and controlling the cost under the premise in quality so that we can provide products and services for customers at affordable price.

No-risk Protein Custom Service

Risk-free: Do not charge by steps. No protein, No charge. For proteins within 800aa, CUSABIO offers no-risk custom service. The cost starts at $535. Our 5 expression system, 39 kinds of tags, Secondary AKTA-SEC purification, etc. will bring you perfect service. More details >>

Hot Categories

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SARS-CoV-2 ELISA Kits

CUSABIO has developed 3 types of ELISA kits, including antigen, antibody detection and neutralizing antibody ELISA kits.

Infectious Diseases

Infectious diseases are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi.

Cytokines

Cytokines are a large group of proteins that are important in cell signaling. They are produced by a broad range of cells.

New Products Launch

CUSABIO is committed to antibodies and proteins R&D, and aims to be the better partner in your science research.

Cell Marker

All cells express characteristic markers that can be used to help distinguish unique cell types.

COVID-19 Cytokine Storm

COVID-19 cytokine storm acturally refers to the cytokine storm caused by COVID-19 (a disease caused by SARS-CoV-2 infection).

Immune Checkpoint

Immune checkpoints are regulators of immune activation by regulating the antigen recognition of T cell receptor (TCR) in the process of immune response.

Drug Target Proteins

CUSABIO Drug Target Proteins
High Purity, Low Endotoxin, Validated Activity, In Stock.

The Latest Publication Products

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Mouse TNF-α ELISA Kit / Mouse IL-6 ELISA Kit / Mouse IL-1β ELISA Kit referenced in "Improvement of obesity-associated disorders by a small-molecule drug targeting mitochondria of adipose tissue macrophages". Nature communications, 2021.

Human CEA ELISA Kit referenced in "Reagentless Affimer-and antibody-based impedimetric biosensors for CEA-detection using a novel non-conducting polymer". Biosens Bioelectron, 2021.

Human LILRA3 ELISA Kit referenced in "Association of leukocyte immunoglobulin-like receptor A3 (LILRA3) with neutrophil activation and its susceptibility in adult-onset Still's disease". Arthritis & Rheumatology, 2021.

UACA Antibody referenced in "Serum Sp17 Autoantibody Serves as a Potential Specific Biomarker in Patients with SAPHO Syndrome". Journal of Clinical Immunology, 2021.

Mouse Pf4 Protein referenced in "HSF1 Alleviates Microthrombosis and Multiple Organ Dysfunction in Mice with Sepsis by Upregulating the Transcription of Tissue-Type Plasminogen Activator". Thromb Haemost, 2021.