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BioAssay: AID 651612

Luminescence-based biochemical high throughput confirmation assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5)

Name: Luminescence-based biochemical high throughput confirmation assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5). ..more
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 Tested Compounds
 Tested Compounds
All(2249)
 
 
Active(1513)
 
 
Inactive(736)
 
 
 Tested Substances
 Tested Substances
All(2249)
 
 
Active(1513)
 
 
Inactive(736)
 
 
AID: 651612
Data Source: The Scripps Research Institute Molecular Screening Center (ABHD5-MLDP_INH_LUMI_1536_3X%INH CRUN)
BioAssay Type: Primary, Primary Screening, Single Concentration Activity Observed
Depositor Category: NIH Molecular Libraries Probe Production Network
Deposit Date: 2012-10-03

Data Table ( Complete ):           View Active Data    View All Data
Targets
BioActive Compounds: 1513
Related Experiments
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AIDNameTypeComment
493035Luminescence-based biochemical high throughput validation assay to identify inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5)Screeningdepositor-specified cross reference: Primary screen (ABHD5-MLDP inhibitors in singlicate, 2K set)
493241Summary of the probe development efforts to identify inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with the muscle lipid droplet protein, perilipin-5 (PLIN5; MLDP)Summarydepositor-specified cross reference: Summary (ABHD5-MLDP inhibitors)
504319Luminescence-based biochemical high throughput dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5) (2K validation set)Confirmatorydepositor-specified cross reference: Dose response (ABHD5-MLDP inhibitors in triplicate, 2K set)
602281Luminescence-based biochemical primary high throughput screening assay to identify inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5)Screeningdepositor-specified cross reference: Primary screen (ABHD5-MLDP inhibitors in singlicate)
652123Late stage counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical dose response assay to identify inhibitors of Hepatocyte nuclear factor 4 (HNF4) dimerization (ROUND 2)Confirmatorydepositor-specified cross reference
652124Late stage luminescence-based biochemical dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5) (ROUND 2)Confirmatorydepositor-specified cross reference
652125Late stage counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical dose response assay to identify inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-1 (PLIN1)(ROUND 2)Confirmatorydepositor-specified cross reference
652130Late stage luminescence-based biochemical dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5) produced in HEK293T cells (ROUND 2)Confirmatorydepositor-specified cross reference
652137Late stage counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical dose response assay to identify inhibitors of Hepatocyte nuclear factor 4 (HNF4) dimerization (ROUND 3)Confirmatorydepositor-specified cross reference
652138Late stage luminescence-based biochemical dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5) (ROUND 3)Confirmatorydepositor-specified cross reference
651672Counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical high throughput dose response assay to identify inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-1 (PLIN1)Confirmatorysame project related to Summary assay
651674Counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical high throughput assay to identify inhibitors of Hepatocyte nuclear factor 4 (HNF4) dimerizationScreeningsame project related to Summary assay
651677Luminescence-based biochemical high throughput dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5)Confirmatorysame project related to Summary assay
651720Counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical high throughput dose response assay to identify inhibitors of Hepatocyte nuclear factor 4 (HNF4) dimerizationConfirmatorysame project related to Summary assay
651733Luminescence-based biochemical high throughput dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5) produced in HEK293T cellsConfirmatorysame project related to Summary assay
651759Late stage luminescence-based biochemical dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5) produced in HEK293T cellsConfirmatorysame project related to Summary assay
651760Late stage counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical dose response assay to identify inhibitors of Hepatocyte nuclear factor 4 (HNF4) dimerizationConfirmatorysame project related to Summary assay
651761Late stage luminescence-based biochemical dose response assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5)Confirmatorysame project related to Summary assay
651766Late stage counterscreen for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5): Luminescence-based biochemical dose response assay to identify inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-1 (PLIN1)Confirmatorysame project related to Summary assay
Description:
Source (MLPCN Center Name): The Scripps Research Institute Molecular Screening Center (SRIMSC)
Affiliation: The Scripps Research Institute, TSRI
Assay Provider: James Granneman, Wayne State University
Network: Molecular Library Probe Production Centers Network (MLPCN)
Grant Proposal Number: 1 R21 NS061634-01
Grant Proposal PI: James Granneman, Wayne State University
External Assay ID: ABHD5-MLDP_INH_LUMI_1536_3X%INH CRUN

Name: Luminescence-based biochemical high throughput confirmation assay for inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5).

Description:

Adipocytes are important regulators of vertebrate energy stores, in part through the storage of dietary fat (triglyceride) that is mobilized via lipolysis during fasting states for use by tissues such as heart and skeletal muscle (1, 2). However, in chronic conditions of overnutrition, such as obesity and lipid storage disorders, excess intracellular lipid accumulation and reduced lipolysis leads to cellular lipotoxicity, which contributes to diabetes, atherosclerosis, and cardiomyopathy (2, 3). The metabolism of cellular lipid is regulated in part by protein-protein interactions near the surface of intracellular lipid droplets. In adipocytes lipolysis is inhibited by the interaction of a protein called abhydrolase domain-containing 5 (ABHD5) with the lipid droplet scaffold protein perilipin A (PLIN). In cells that do not express PLIN, such as myocytes, lipolysis is blocked by similar interactions of ABHD5 with myocyte lipid droplet protein (MLDP) (4). Studies showing reduced lipotoxicity following Plin overexpression (5, 6), combined with population studies identifying ABHD5 mutations as a cause of the lipid storage disease Chanarin-Dorfman syndrome (7), suggest that activating lipolysis by blocking interactions of ABHD5 with PLIN or MLDP will increase lipid clearance from adipocytes and other cells, thereby reducing lipotoxicity. As a result, compounds that inhibit these protein interactions may have therapeutic potential for lipid disorders such as obesity, diabetes, and cardiovascular disease (8).

References:

1. Scherer, PE, Adipose tissue: from lipid storage compartment to endocrine organ. Diabetes, 2006. 55(6): p. 1537-45.
2. Vazquez-Vela, ME, Torres, N and Tovar, AR, White adipose tissue as endocrine organ and its role in obesity. Arch Med Res, 2008. 39(8): p. 715-28.
3. Lewis, GF, Carpentier, A, Adeli, K and Giacca, A, Disordered fat storage and mobilization in the pathogenesis of insulin resistance and type 2 diabetes. Endocr Rev, 2002. 23(2): p. 201-29.
4. Granneman, JG, Moore, HP, Mottillo, EP and Zhu, Z, Functional interactions between Mldp (LSDP5) and Abhd5 in the control of intracellular lipid accumulation. J Biol Chem, 2009. 284(5): p. 3049-57.
5. Borg, J, Klint, C, Wierup, N, Strom, K, Larsson, S, Sundler, F, Lupi, R, Marchetti, P, Xu, G, Kimmel, A, Londos, C and Holm, C, Perilipin is present in islets of Langerhans and protects against lipotoxicity when overexpressed in the beta-cell line INS-1. Endocrinology, 2009. 150(7): p. 3049-57.
6. Brasaemle, DL, Rubin, B, Harten, IA, Gruia-Gray, J, Kimmel, AR and Londos, C, Perilipin A increases triacylglycerol storage by decreasing the rate of triacylglycerol hydrolysis. J Biol Chem, 2000. 275(49): p. 38486-93.
7. Lefevre, C, Jobard, F, Caux, F, Bouadjar, B, Karaduman, A, Heilig, R, Lakhdar, H, Wollenberg, A, Verret, JL, Weissenbach, J, Ozguc, M, Lathrop, M, Prud'homme, JF and Fischer, J, Mutations in CGI-58, the gene encoding a new protein of the esterase/lipase/thioesterase subfamily, in Chanarin-Dorfman syndrome. Am J Hum Genet, 2001. 69(5): p. 1002-12.
8. Wang, M and Fotsch, C, Small-molecule compounds that modulate lipolysis in adipose tissue: targeting strategies and molecular classes. Chem Biol, 2006. 13(10): p. 1019-27.

Keywords:

Confirm, confirmation, triplicate, lipolysis, lipotoxicity, ABHD5, 1-acylglycerol-3-phosphate O-acyltransferase, abhydrolase domain-containing 5, CGI58, comparative gene identification 58, NCIE2 gene, perilipin-5, PLIN, PLIN5, lipid droplet-associated protein, Mldp, MLDP, LSDA5, LSDP5, OXPAT, muscle lipid droplet protein, protein-protein, interaction, adipocyte, myocyte, G. princeps, luciferase, luminescence, complementation, complementation assay, inhibitor, inhibition, HTS, high throughput screen, 1536, MLSMR, Scripps, Scripps Florida, The Scripps Research Institute Molecular Screening Center, SRIMSC, Molecular Libraries Probe Production Centers Network, MLPCN.
Protocol
Assay Overview:
The purpose of this biochemical assay is to confirm activity of available compounds that were identified as active in a set of previous experiments entitled, "Luminescence-based biochemical primary high throughput screening assay to identify inhibitors of the interaction of the lipase co-activator protein, abhydrolase domain containing 5 (ABHD5) with perilipin-5 (MLDP; PLIN5)" (AID 602281). This assay confirms the ability of compounds to inhibit the interaction of the lipase co-activator protein ABHD5 with the muscle lipid droplet protein (MLDP). In this G. princeps luciferase complementation assay, ABHD5 fused to the C-terminus of luciferase (ABHD5-LucC) and MLDP fused to the N-terminus of luciferase (MLDP-LucN) are incubated in the presence of test compounds. Binding of the two proteins reconstitutes full length luciferase, leading to an increase in well luminescence. As designed, compounds that inhibit the interaction of ABHD5 and MLDP will prevent luciferase reconstitution, thereby preventing an increase in well luminescence. Compounds are tested in triplicate at a final nominal concentration of 4 uM.
Protocol Summary:
Prior to the start of the assay 2.5 uL of lysate containing recombinant ABHD5 were dispensed into each well of 1536-well microtiter plates. Test compounds or DMSO alone were then added to the appropriate wells. The assay was started by adding 2.5 uL of lysate containing recombinant MLDP protein. The plates were incubated for 4 hours at 25 C. Next, the assay was stopped by dispensing 5 uL of Coelenterazine reagent to each well, followed by incubation at room temperature for 30 minutes. Well luminescence was measured on the ViewLux plate reader.
The percent inhibition for each compound was calculated as follows:
%_Inhibition = ( ( Test_Compound - Median_Low_Control ) / ( Median_High_Control - Median_Low_Control ) ) * 100
Where:
Test_Compound is defined as wells containing test compound.
Low_Control is defined as wells containing DMSO.
High_Control is defined as wells containing 25 uM Trans-chalcone.
PubChem Activity Outcome and Score:
The average percent inhibition and standard deviation of each compound tested were calculated. Two values were calculated : (1) the average percent inhibition of all low controls and (2) three times their standard deviation. The sum of these two values was used as a cutoff parameter for each plate, i.e. any compound that exhibited greater % inhibition than the hit cutoff was declared active.
The reported PubChem Activity Score has been normalized to 100% observed inhibition. Negative % inhibition values are reported as activity score zero.
The PubChem Activity Score range for active compounds is 100-20, and for inactive compounds 20-0.
List of Reagents:
Trans-chalcone control (Sigma, 136123-5G)
ABHD5-LucC and MLDP-LucN proteins (supplied by Assay Provider)
Full length G. princeps Luciferase (supplied by Assay Provider)
10X Assay Buffer (provided by Assay Provider)
1536 well plates (Corning, 7254)
Coelenterazine substrate (Prolume, 303B NF-CTZ-FB)
Comment
Due to the increasing size of the MLPCN compound library, this assay may have been run as two or more separate campaigns, each campaign testing a unique set of compounds. All data reported were normalized on a per-plate basis. Possible artifacts of this assay can include, but are not limited to: dust or lint located in or on wells of the microtiter plate, and compounds that modulate well luminescence. All test compound concentrations reported above and below are nominal; the specific test concentration(s) for a particular compound may vary based upon the actual sample provided by the MLSMR. The MLSMR was not able to provide all compounds selected for testing in this assay.
Categorized Comment - additional comments and annotations
From PubChem:
Assay Format: Biochemical
Result Definitions
TIDNameDescriptionHistogramTypeUnit
OutcomeThe BioAssay activity outcomeOutcome
ScoreThe BioAssay activity ranking scoreInteger
1Average Inhibition at 4 uM (4μM**)Normalized percent inhibition of the confirmation screen at a compound concentration of 4 uM.Float%
2Standard Deviation (4μM**)Standard deviation derived from the normalized percent inhibition of the triplicate data for each compoundFloat
3Inhibition at 4 uM [1] (4μM**)Percent inhibition of the confirmation screen at a compound concentration of 4 uM; replicate [1].Float%
4Inhibition at 4 uM [2] (4μM**)Percent inhibition of the confirmation screen at a compound concentration of 4 uM; replicate [2].Float%
5Inhibition at 4 uM [3] (4μM**)Percent inhibition of the confirmation screen at a compound concentration of 4 uM; replicate [3].Float%

** Test Concentration.
Additional Information
Grant Number: 1 R21 NS061634-01

Data Table (Concise)
Data Table ( Complete ):     View Active Data    View All Data
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