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Cat-SAR Overview « Gnarus Systems
http://www.gnarussystems.com/how-it-works/cat-sar-overview
Structure-activity relationship [SAR] models are powerful tools to investigate the relationship between the chemical structure of a compound and its biological or pharmacological activity. Our categorical-SAR program cat SAR is a computational SAR or in silico toxicity analysis and prediction expert system. Cat SAR is completely open with every detail of modeling transparent to the user. Gnarus doesn’t employ black box technology. The cat SAR approach is also a very data- and information-intensive SAR ex...
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About Gnarus « Gnarus Systems
http://www.gnarussystems.com/about-gnarus
Gnarus Systems, Inc. was organized in May 2009 by Al Cunningham, Ph.D. and Suzanne Cunningham, M.S., in conjunction with MetaCyte Business Lab LLC. Albert R. Cunningham, Ph.D. Is a Founder and President of Gnarus Systems. He is an Associate Professor of Medicine, Associate Professor of Pharmacology and Toxicology with an appointment in the James Graham Brown Cancer Center at the University of Louisville. Dr. Cunningham holds a B.S. in. Suzanne Cunningham, M.S. Online or in-person, we’re always here.
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How It Works « Gnarus Systems
http://www.gnarussystems.com/how-it-works
Cat SAR Expert System. Cat-SAR is a reliable and cost effective means to predict a range of toxicological or pharmacological endpoints. In simple terms, users send a chemical structure to Gnarus using standard file formats from which cat-SAR makes a prediction and Gnarus returns the result to the user. 1 Chemicals are fragmented in silico into all possible fragments meeting user-specified criteria; for example, all fragments three and seven heavy atoms in size. Online or in-person, we’re always here.
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Cat-SAR Models « Gnarus Systems
http://www.gnarussystems.com/how-it-works/cat-sar-models
CURRENT CAT SAR MODELS. Below is a listing and summary of the cat-SAR models currently available or under development. Leave-one-out validation (LOO) results are included as sensitivity, specificity, and observed correct predictions (OCP). The models listed were parameterized to return models with near-equal sensitivity and specificity. Other parameters could be used to develop models with potentially higher OCP values or higher specificity values (useful for risk aversion). Mouse Local Lymph Node. Simil...
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Cat-SAR Bibliography « Gnarus Systems
http://www.gnarussystems.com/how-it-works/cat-sar-bibliography
Cunningham, A.R., S.L. Cunningham, and H.R. Rosenkranz (2004) Structure activity approach to the identification of environmental estrogens: The MCASE approach. SAR and QSAR in Environmental Research. Cunningham, A.R., S.L. Cunningham, D.M. Consoer, S.T. Moss, and M.H. Karol (2005) Development of an information-intensive structure- activity relationship model and its application to human respiratory chemical sensitizers. SAR and QSAR in Environmental Research. Journal of Molecular Modeling. Cunningham, A&...
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References « Gnarus Systems
http://www.gnarussystems.com/how-it-works/references
1 Benfenati, E. and G. Gini (1997) Computational predictive programs (expert systems) in toxicology. Toxicology, 119: 213-225. 2 Hansch, C. and T. Fujita (1964) p-s-p Analysis. A method for the correlation of biological activity and chemical structure. Journal of the American Chemical Society, 86: 1616-1626. 4 Klopman, G. (1992) MULTICASE 1. A hierarchical computer automated structure evaluation program. Quantitative Structure-Activity Relationships, 11: 176-184. 8 Contrera, J.F., N.L. Kr...9 McKinney, J...
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Upcoming Appearances « Gnarus Systems
http://www.gnarussystems.com/category/upcoming-appearances
Archive by category 'Upcoming Appearances'. Sorry, but there aren't any posts in the Upcoming Appearances category yet. We’re just a click or message away and happy to help in any way we can! Online or in-person, we’re always here. Gnarus Systems offers predictive toxicological assessment of chemicals, SAR model development, and virtual screening on an ad hoc basis. For a brief Gnarus Systems overview, cat-SAR model description, and available model data see cat-SAR models v6. Site design by Mission Data.
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Introducing cat-SAR « Gnarus Systems
http://www.gnarussystems.com/intro-cat-sar
The cat-SAR system essentially learns about the biological activity of chemicals by analyzing learning sets of data. These are endpoint specific databases of toxicological or pharmacological chemical activity (e.g., carcinogens and developmental toxicants) that are assembled by us or others. Currently, we have validated and usable learning sets for a variety of health endpoints including cancer, anticancer, genotoxicity, developmental toxicity, and chemical allergy. Online or in-person, we’re always here.
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FAQs « Gnarus Systems
http://www.gnarussystems.com/faqs
We’re just a click or message away and happy to help in any way we can! Online or in-person, we’re always here. Gnarus Systems offers predictive toxicological assessment of chemicals, SAR model development, and virtual screening on an ad hoc basis. For larger projects, Gnarus Systems can provide users with secure cloud-based access to the cat-SAR expert system along with validated predictive models. Or for more information contact Al Cunningham: arc@gnarus-systems.com. Site design by Mission Data.
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News & Press « Gnarus Systems
http://www.gnarussystems.com/category/news-press
Archive by category 'News and Press'. Gnarus Systems announces cat-SAR based virtual screening. Cat-SAR models developed with 10s to 1000s of proprietary or public data are now capable to virtually screen large libraries of chemicals. Gnarus Systems is pleased to introduce cat-SAR; a peer-reviewed in silico toxicity prediction expert system. We’re just a click or message away and happy to help in any way we can! Online or in-person, we’re always here. Site design by Mission Data.
