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Cell biology of molybdenum.

BioFactors (Oxford, England) (2009-07-23)
Ralf R Mendel
ABSTRACT

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.

MATERIALS
Product Number
Brand
Product Description

Molybdenum, foil, 100x100mm, thickness 0.15mm, annealed, 99.9%
Sigma-Aldrich
Molybdenum, foil, thickness 0.1 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Molybdenum, foil, thickness 1.0 mm, ≥99.9% trace metals basis
Sigma-Aldrich
Molybdenum, foil, thickness 0.025 mm, ≥99.9% trace metals basis
Molybdenum, foil, 50x50mm, thickness 0.125mm, annealed, 99.9%
Molybdenum, wire reel, 50m, diameter 0.25mm, annealed, 99.95%
Molybdenum, foil, 10mm disks, thickness 0.025mm, annealed, 99.9%
Molybdenum, foil, light tested, 25x25mm, thickness 0.009mm, 99.9%
Molybdenum, foil, 10m coil, thickness 0.04mm, coil width 0.7mm, annealed, 99.9%
Molybdenum, foil, 300x300mm, thickness 0.5mm, annealed, 99.9%
Molybdenum, rod, 200mm, diameter 10.0mm, centerless ground, 99.9%
Molybdenum, pellets, 100g, max. size 10mm, 99.9%
Molybdenum, foil, 8mm disks, thickness 0.15mm, annealed, 99.9%
Molybdenum, tube, 100mm, outside diameter 2.0mm, inside diameter 1.3mm, wall thickness 0.35mm, 99.9%
Molybdenum, foil, light tested, 50x50mm, thickness 0.006mm, 99.9%
Molybdenum, tube, 500mm, outside diameter 1.5mm, inside diameter 0.95mm, wall thickness 0.275mm, 99.9%
Molybdenum, rod, 1000mm, diameter 2.0mm, centerless ground, 99.9%
Molybdenum, foil, not light tested, 25x25mm, thickness 0.006mm, 99.9%
Molybdenum, foil, not light tested, 100x100mm, thickness 0.007mm, 99.9%
Molybdenum, foil, 8mm disks, thickness 0.075mm, annealed, 99.9%
Molybdenum, mesh, 150x150mm, nominal aperture 0.44mm, wire diameter 0.07mm, 50 wires/inch, open area 67%, plain weave mesh
Molybdenum, foil, light tested, 50x50mm, thickness 0.01mm, 99.9%
Molybdenum, foil, not light tested, 50x50mm, thickness 0.002mm, 99.9%
Molybdenum, rod, 200mm, diameter 5.0mm, centerless ground, 99.9%
Molybdenum, rod, 100mm, diameter 3.0mm, centerless ground, 99.9%
Molybdenum, foil, not light tested, 150x150mm, thickness 0.05mm, annealed, 99.9%
Molybdenum, foil, 0.5m coil, thickness 0.0125mm, 99.9%
Molybdenum, rod, 100mm, diameter 15.0mm, centerless ground, 99.9%
Molybdenum, rod, 1000mm, diameter 6.0mm, centerless ground, 99.9%
Molybdenum, wire reel, 50m, diameter 0.025mm, hard, 99.95%