| Description | The diphtheria toxin of Corynebacterium diphtheriae has been used in: microglia depletion, study of post-traumatic stress disorder in mice; Intraperitoneally injected in transgenic mice to select hybrids after fusion of transplanted hematopoietic stem cells and progenitor cells (HSPCs) during The diphtheria toxin of Corynebacterium diphtheriae has been used in: microglia depletion, study of post-traumatic stress disorder in mice; Intraperitoneally injected in transgenic mice to select hybrids after fusion of transplanted hematopoietic stem cells and progenitor cells (HSPCs) during ablation; To study the effect on eosinophilic lineal transformed progenitor cells in eosinophilic deficient mouse strain (iPHIL).Diphtheria toxin can be used as a toxin element in the construction of cell-specific cytotoxic immunotoxins. Bacterial toxin translocation domains with natural endosome escape mechanisms have been used to develop effective non-viral vectors for gene therapy... Read More | Biochemical Test:SDS-PAGE (purity > 80%); Western blot with patient sample.Calculated Isoelectric Point:pH 6.10 | Inquire | Malic Dehydrogenase is a ubiquitous enzyme, which exists in two isoforms in eukaryotic cells.Malic dehydrogenase exists as a dimer with each subunit containing an NAD-binding domain and a substrate-binding carboxy-terminal domain required for activity. Malic dehydrogenase is a cytoplasmic isozyme Malic Dehydrogenase is a ubiquitous enzyme, which exists in two isoforms in eukaryotic cells.Malic dehydrogenase exists as a dimer with each subunit containing an NAD-binding domain and a substrate-binding carboxy-terminal domain required for activity. Malic dehydrogenase is a cytoplasmic isozyme and an important catalyst in the tricarboxylic acid cycle.ReagentsA. 0.1 M Tris-HCl buffer (pH7.8)B. 0.01 M Phosphate buffer (KH2PO4-NaOH, pH 7.0)C. Triton X-100 solution (50 mg/ml)D. 0.01 M Phosphate buffer containing 0.1% Triton X-100 (KH2PO4-NaOH, pH 7.0)Dilute 20 ml of Triton X-100 solution (C) with approx. 800 ml of 0.01M Phosphate buffer (B). Fill up to 1,000 ml with 0.01M Phosphate buffer (B).E. NADH soluton Weigh 9 mg of NADH and dissolve in 0.1M Tris-HCl bufer (A). Fill up to 50 ml with 0.1M Tris-HCl Buffer (A). (Can be used for 5 days if kept refrigerated)F. Substrate solutionWeigh 11 mg of oxaloacetic acid and dissolve in 0.1M Tris-HCl buffer (A). Fill up to 50 ml with 0.1M Tris-HCl buffer (A) (Make a fresh solution for each use.)G. Enzyme solutionWeigh out Malate Dehydrogenase and dissolve in chilled 0.01M Phosphate Bufer containing 0.1% Triton X-100 (D). Enzyme solution should be prepared so that the value of AOD/minute becomes in the range of 0.025 ± 0.010.ProcedurePipette 2.0 ml of NADH solution (E) and 0.90 ml of Substrate solution (F) respectively into a quartz cell (d=10 mm) and keep at 25 + 0.5'℃ for 5 minutes. Then, pipete 0.10 ml of Enzyme solution (G) into the quartz cell and mix well immediately. Keep the reaction mixture at 25 ±0.5'C.Exaclly at 2 minutes and 5 minutes after the addition of Enzyme solution (G), measure the absorbances of the reaction mixture at 340 nm(A2 and A5).As a blank, pipette 0.01M Phosphate buffer (D) into another quartz cel (d=10 mm) instead of the Enzyme solution (G) and follow the same procedure described above (Ab2 and Ab5).CalculationMalate dehydrogenase activity (u/mg)=[(A2-A5)-(Ab2-Ab5)]/3*(1/6.22)*(n/0.1) ApplicationThis enzyme is used for the enzymatic determination of L-malate and gluamate oxalo-acetate transaminase(GOT)in clinical diagnosis... Read More | Protein kinase inhibitor 1 hydrochloride is a potent HIPK2 inhibitor, with IC 50 s of 136 and 74 nM for HIPK1 and HIPK2, and a K d of 9.5 nM for HIPK2.In VitroProtein kinase inhibitor 1 hydrochloride is a potent HIPK2 inhibitor, with IC 50 s of 136 and 74 nM for HIPK1 and HIPK2, and a K d of 9.5 nM Protein kinase inhibitor 1 hydrochloride is a potent HIPK2 inhibitor, with IC 50 s of 136 and 74 nM for HIPK1 and HIPK2, and a K d of 9.5 nM for HIPK2.In VitroProtein kinase inhibitor 1 hydrochloride is a potent HIPK2 inhibitor, with IC 50 s of 136 and 74 nM for HIPK1 and HIPK2, and a K d of 9.5 nM for HIPK2. Protein kinase inhibitor 1 (Compound A64) is not an effective Cdk1 inhibitor (IC 50 > 10 µM). A64 is moderately selective across a panel of kinases, with K d s of 3.7 nM (PIM3), 6.1 nM (CSNK2A2), 6.1 nM (CSNK2A2), 8.8 nM (DYRK1A), 9.5 nM (DAPK1), 31 nM (CSNK2A1), 37 nM (PIM1), 130 nM (DRAK2), 150 nM (CLK2), 190 nM (DRAK1), 220 nM (ULK2), 240 nM (CLK1), 250 nM (DYRK2), and 390 nM (ERK8) and IC 50 s of 19 nM (DYRK1A), 62 nM (DYRK1B), and 74 nM (HIPK2). MCE has not independently confirmed the accuracy of these methods. They are for reference only.IC50& Target:DYRK1 DYRK2... Read More |