Archive for January, 2008

  • LD50 vs. MRDD: what’s death for a mice is good enough for a man

    LD50 vs. MRDD: what’s death for a mice is good enough for a man

    Prediction of toxic properties of small drug like molecules is a big challenge both from theoretical and practical points of view. Quantitatively people use different measures of toxicity such as Maximum Recommended Daily Dose (MRDD) or Lethal Dose (LD50). Accurate prediction of such endpoints is...

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  • q-hERG: QUANTUM’s innovative approach to hERG binding calculations is finally released

    q-hERG: QUANTUM’s innovative approach to hERG binding calculations is finally released

    QUANTUM hERG (q-hERG) screening assays is a unique and innovative computational approach, which allows you to predict from a molecule structures of compounds their inhibition constants (IC50) for hERG channels. q-hEARG features: Output is pIC50 values (-logIC50) for the molecules. The accuracy of prediction is...

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  • HERG binding prediction quality: q-HERG model vs. experiments

    HERG binding prediction quality: q-HERG model vs. experiments

    Quantum Pharmaceuticals has recently completed development of its in-house HERG-protein binding model. Since there is no 3D structure of HERG-protein available, the calculations envolved a number of fits and model assumptions. To see whether our data is notoverfitted, we compared the errors inour calculations with...

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  • Drug likeness: what do bioavailability and toxicity properties tell us about druglikeness?

    Drug likeness: what do bioavailability and toxicity properties tell us about druglikeness?

    Druglikeness is a qualitative concept used in drug design for an estimate on how “druglike” a prospective compound is. Usually it is estimated from the molecular structure, often even before the substance is synthesized and tested. A good drug should show good availability, low toxicity...

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