With its innovative functional assay platform for G-protein-coupled receptors (GPCRs), Tanso Biosciences promotes human health by expanding frontiers in drug discovery and accelerating research & development.

I highly recommend Tanso Biosciences for their assay platform. Its reliability and industry-leading receptor coverage make it a uniquely valuable guide to GPCR drug discovery. We experienced a quick turnaround time as well.

President, Digestome Therapeutics, CA, USA

Core Business

Drug Discovery Enterprise

We take advantage of our all-around assay technology and engage in drug discovery for orphan GPCRs.

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Contract Services

Panel assays, concentration dependence analysis, and other functional assays for > 300 orphan and non-orphan GPCRs.

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Assay Platform


  • On-target and off-target screening for drug discovery
  • Compound profiling
  • Strategy development
  • In-licensing assessment
  • Drug repurposing

Key Features


Characterizes compounds' potency, not affinity, on target GPCR in various modes


Dramatically and specifically amplifies G-protein-dependent signals


All GPCRs are amenable in single assay format, regardless of Gα proteins coupled

Voice of Client

Pharma A

Tanso Bio helps us accelerate structure-activity relationship studies.

Pharma B

Tanso Bio's assays have revealed key features of our compounds that would otherwise remain unnoticed.

Clients & Partners

Here are just a few of our valued clients and partners.

Assay Examples

Shown below are a few use cases of our assay platform.

Large-Scale Panel

Antagonistic activities of carvedilol against 200 human non-orphan GPCRs

Endocrinol/Metab Panel

TAK-875, an antidiabetic agent, against 48 GPCRs associated with endocrinology and metabolism

Orphan GPCR Screening

Concentration-dependent activation of GPR68 by a newly identified agonist

Proton Sensitivity

Activity of GPR65 at various pH


Agonist-induced concentration-dependent activation of LPAR6, a G12/13-coupled receptor

News & Updates

Disease-associated GPCR variants word cloud
Disease-Associated GPCR Variants
Web Updates
This video is a step-by-step guide for ordering Tanso Biosciences'
Video Guide to Order Assays
Registered by HHMI as Vendor
GPCR word cloud
MeSH Headings for GPCRs Untangled for Effective PubMed Searches
Web Updates
Figures for GPR88 & MRGPRX4 Added
Nagoya Castle, the most famous landmark of the city
CEO Gives Talk at Nagoya City University
タンソーバイオサイエンス全オーファンGPCR創薬 頭書の研究開発プロジェクトは技術の新規性及び事業の発展性に極めて優れ我が国産業経済の発展に資するところ大であると認められますので助成金を交付致します
Tanso to Receive Mitsubishi UFJ's Commendation & Grant
Nikkei's New Publication Features Tanso Biosciences
Web Updates
Plots of Prostaglandin E2 Receptors Updated

Contact Us

Send us a message via the form below or write to us at [email protected].

Ordering Process

Service flow chart

Request a quotation

We hear about the study outline and propose experiments. A non-disclosure agreement is optional.


Place an order

You also ship your compounds to our lab and pay the fee via bank transfer.


Wait for a while

The turnaround time may be as short as two weeks but depends on the study scale and design and the backlog of orders.


Receive the report

We provide the study report via email.


Inquiry & RFQ Form