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Cell biology of molybdenum.

Cell biology of molybdenum.

BioFactors (Oxford, England) (2009-07-23)

Ralf R Mendel

摘要

The transition element molybdenum (Mo) is an essential micronutrient that is needed as catalytically active metal during enzyme catalysis. In humans four enzymes depend on Mo: sulfite oxidase, xanthine oxidoreductase, aldehyde oxidase, and mitochondrial amidoxime reductase. In addition to these enzymes, plants harbor a fifth Mo-enzyme namely nitrate reductase. To gain biological activity and fulfill its function in enzymes, Mo has to be complexed by a pterin compound thus forming the molybdenum cofactor. This article will review the way that Mo takes from uptake into the cell, via formation of the molybdenum cofactor and its storage, up to the final insertion of the molybdenum cofactor into apometalloenzymes.

材料

Product Number

品牌

产品描述

Sigma-Aldrich

钼, powder, <150 μm, 99.9% trace metals basis

Sigma-Aldrich

钼, foil, thickness 0.025 mm, ≥99.9% trace metals basis

Sigma-Aldrich

钼, powder, <150 μm, 99.99% trace metals basis

Sigma-Aldrich

钼, foil, thickness 0.1 mm, ≥99.9% trace metals basis

Sigma-Aldrich

钼, powder, 10 μm, ≥99.95% trace metals basis

Sigma-Aldrich

钼, nanopowder, <100 nm particle size (TEM), 99.8% trace metals basis

Sigma-Aldrich

钼, wire, diam. 1.0 mm, 99.95% trace metals basis

Sigma-Aldrich

钼, foil, thickness 1.0 mm, ≥99.9% trace metals basis

钼, foil, 15mm disks, thickness 0.005mm, 99.9%

钼, mesh, 100x100mm, nominal aperture 0.44mm, wire diameter 0.07mm, 50 wires/inch, open area 67%, plain weave mesh

钼, wire, straight, 1000mm, diameter 0.5mm, 99.95%

钼, pellets, 200g, max. size 10mm, 99.9%

钼, wire reel, 1000m, diameter 0.125mm, annealed, 99.95%

钼, pellets, 100g, max. size 10mm, 99.9%

钼, rod, 50mm, diameter 5.0mm, 99.98%

钼, pellets, 50g, max. size 10mm, 99.9%

钼, mesh, 150x150mm, nominal aperture 0.44mm, wire diameter 0.07mm, 50 wires/inch, open area 67%, plain weave mesh

钼, foil, 50x50mm, thickness 0.1mm, annealed, 99.9%

钼, foil, 25mm disks, thickness 0.0125mm, 99.9%

钼, wire reel, 1000m, diameter 0.035mm, as drawn, 99.95%

钼, tube, 500mm, outside diameter 2.0mm, inside diameter 1.3mm, wall thickness 0.35mm, 99.9%

钼, wire, straight, 1000mm, diameter 0.25mm, 99.95%

钼, tube, 100mm, outside diameter 1.0mm, inside diameter 0.7mm, wall thickness 0.15mm, 99.9%

钼, foil, 100x100mm, thickness 0.1mm, annealed, 99.9%

钼, foil, 100x100mm, thickness 0.5mm, annealed, 99.9%

钼, foil, 0.5m coil, thickness 0.05mm, annealed, 99.9%

钼, rod, 150mm, diameter 5.0mm, 99.98%

钼, rod, 100mm, diameter 2.0mm, centerless ground, 99.9%

钼, wire reel, 50m, diameter 0.025mm, hard, 99.95%

钼, foil, 8mm disks, thickness 0.007mm, 99.9%