LogP describes the differential solubility of a neutral compound with a single form in n-octanol and water. However, 95% of drugs have ionizable groups containing ionization and unionization forms. Thus, logD, which is pH dependent and measures the lipophilicity of an ionizable compound in a ...
these experiments by (1) determination of apparent pKa values as a function of total DNA concentration, (2) calculation of binding constants for the neutral species of DAPP, and (3) spectral analysis of the protonated and neutral species of DAPP bound to DNA relative to DAPP free in solution...
Notably, the small molecule compound Retigabine dihydrochloride markedly increases Eepd1 protein levels in adipocytes, thereby mitigating the progression of obesity. Results Eepd1 is highly expressed in adipose tissue but is downregulated in obesity
pKa indicates the ionizability of a compound in aqueous solution. The term was originally used for acids and is now commonly used for both acids and bases. When the pH equals the pKa, half of the molecules in solution are neutral and half are charged. An increasing fraction of the molecule...
SCAN-B has a large cohort of 386 ILC cases and 2602 NST cases and is ideal for hypothesis-generating bioinformatics analysis. The Cancer Genome Atlas (TCGA) Study and Molecular Taxonomy of Breast Cancer International Consortium (METABRIC) contain gene expression data from additional ILC and NST ...
uk/chem/logp/logppka.htm 2009-9-14 pKa and LogP Measurements 页码,5/19 Weak acids and bases - defined as incompletely ionised in pH range 0-14 The pKa or ionisation constant is defined as the negative logarithm of the equilibrium coefficient of the neutral and charged forms of a compound...
Introduction/pH/Activity/pHmeasurement/pKa/LogP/PartitionSolvents/UseofLogP/Methods/Refs AguidetoLogPandpKameasurementsand theiruse ByMarkEarllBSc(Hons)CChemMRSC(C)Copyright1999-2006,Allrightsreserved. ReturntoMark'sAnalyticalChemistryIndexPage
Molecules with multiple ionizable centers have multiple pKa values, and knowledge of the pKa of each of the ionizable moieties allows for the percentage of ionised/neutral species to be calculated at a given pH (if activity coefficients are known/assumed). pKa plays a particularly important role...
neutral pH (pH = 7.0) which is also the pKa of one phenolic group, the global ristocetin positive charge is equal to one. The two positive amines are still there, but the pKa 7 phenolic group is 50% ionized bringing a half negative charge. In addition, the phenolic group with a pKa ...
compound 3,3′-diamino-4,4′-dihydroxydiphenylmethane (FMP-API-1) and its derivatives increase AQP2 activity to the same extent as vasopressin, and increase urine osmolality in the context of V2R inhibition. We therefore suggest that FMP-API-1 may constitute a promising lead compound for the...