● Secretary
   Ms. Misia Wu
   email: misia@gate.sinica.edu.tw
   Phone: (02) 2787-1306

● NRPB Program PI and Coordinator
   Dr. Ying-Ta Wu
   email: ywu@gate.sinica.edu.tw
   Phone: (02) 2787-1237

● Compound collection and development
   Dr. Shi-Shan Mao
   email: sshanmao@gate.sinica.edu.tw
   Phone: (02) 2787-1303

● Assay Development
   Dr. T-J Rachel Cheng
   email: tingjenc@gate.sinica.edu.tw
   Phone: (02) 2787-1267

● HTS and Cheminformatics
   Dr. Ying-Ta Wu
   email: ywu@gate.sinica.edu.tw
   Phone: (02) 2787-1237

● Medicinal Chemistry
   Dr. Jim-Ming Fang
   email: jmfang@ntu.edu.tw
   Phnoe: (02) 2787-1266
              (02) 3366-1663


Q1:Who can have access to uHTS services?
A1: Anyone having a project approved and supported by NSC or Other agencies can apply for uHTS. This program is supported by NRPB, so we give service priority to the research projects of NRPB.

Q2 : How to arrange for a uHTS assay?
A2: As a new user, you need to fill in an account application first. Please have your project information ready when working on both the Account and Project application forms. Once approved, you will be granted access to Project and Assy Managements, where you can add new project and new assay requests. You might have several assays in one project.
Note: A project is a titled research subject; an assay is one of the jobs executed in the project.

Q3: What is the status of your compound? what is the final DMSO concentration?
A3: Our compounds are solubilized in 100% DMSO and reformated to be 1 mM stock in online 1536-well plate.

Compound Collection & Management
GRC ChemBank

General Description
ChemBank compounds come from two sources: commercial and collaborative collection mainly from research institutes or NRPB collaborators in Taiwan. Current library contains mostly small molecular compounds with drug‐like properties followed an extended Lipinski’s rules of five (RO5). RO5 is derived from analysis of successfully compounds in drug discovery and has been adopted as criteria for drug candidate development for medicinal chemistry.
The extended RO5 criteria are:
  • Partition coefficient logP in ‐0.4 to +5.6 range
  • Molar refractivity from 40 to 130
  • Molecular weight from 160 to 500
  • Number of atoms from 20 to 70 (includes H‐bond donors [e.g.; H and NH] and H‐bond acceptors [e.g.; N and O])
  • Polar surface area no greater than 140 Ǻ2
The GRC-160K representative set has small molecular compounds, consisting of more than 5,000 motifs and 10,000 template‐based scaffolds. In addition, there are ~11,000 natural products/derivatives and ~6000 know drugs or known bioactives. Information associated with each compounds are molecular weights, logP values, sources of collection, and the LC‐MS analytic results.

Improvement of the GRC ChemBank Contents
The GRC HTS Core takes several approaches to improve the ChemBank collections. We will try to acquire drug‐like small molecules that are thought to be useful for library enhancement from commercial sources, API prepared by extraction in house from drug products, and collecting of samples through collaborations. Those newly added samples will be aimed primarily to enrich the contents of the RE set. The current GRC ChemBank, GRC2M2011, is consisted of REset, Aset, Bset, Cset, and microbial fermentation extracts (PL01, and PL02 plates) as shown below.

Additional Collection of small molecules for the ChemBank
At this time the collection is aimed to acquire drug APIs. This will be done by purchasing through different vendors or to purchase drug products from pharmacy stores followed with isolation and purification of the specific APIs.

Protocol of Sample Collection from Collaborators
To establish sample collection collaborations, the sample contributors and the GRC representative need to sign an MTA  that describe the sample contribution needs, collaboration contents, and other agreements.
  • A. The compound contribution agreements need to be made and MTA signed
  • B. The ChemBank&HTS resource center will prepare pre‐weighted and barcoded vials (see below) to the contributors.
  • C. The contributors are expected to provide a minimum of 1mg of single compounds and 5mg is preferred. For mixtures, the amounts are expected to be 5‐10 mg. Unused compounds will not be returned. The quality of single compound is expected to be 90% pure based on LC‐MS analysis.
  • D. Sample information sheets (Appendix 2, and 3) will be provided to the contributors to fill and returned to the ChemBank&HTS resource center.
  • E. Receipts of samples will be provided to the contributors from the ChemBank&HTS resource center.
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