Biology of the molybdenum cofactor.

Biology of the molybdenum cofactor.

Journal of experimental botany (2007-03-14)

Ralf R Mendel

ABSTRACT

The transition element molybdenum (Mo) is an essential micronutrient for plants where it is needed as a catalytically active metal during enzyme catalysis. Four plant enzymes depend on molybdenum: nitrate reductase, sulphite oxidase, xanthine dehydrogenase, and aldehyde oxidase. However, in order to gain biological activity and fulfil its function in enzymes, molybdenum has to be complexed by a pterin compound thus forming the molybdenum cofactor. In this article, the path of molybdenum from its uptake into the cell, via formation of the molybdenum cofactor and its storage, to the final modification of the molybdenum cofactor and its insertion into apo-metalloenzymes will be reviewed.

MATERIALS

Product Number

Brand

Product Description

GF68662503

Molybdenum, rod, 500mm, diameter 1.5mm, centerless ground, 99.9%

GF14377901

Molybdenum, tube, 300mm, outside diameter 0.5mm, inside diameter 0.38mm, wall thickness 0.06mm, 99.9%

GF78945665

Molybdenum, tube, 50mm, outside diameter 3.15mm, inside diameter 2.39mm, wall thickness 0.38mm, 99.9%

GF11321457

Molybdenum, rod, 100mm, diameter 4.0mm, centerless ground, 99.9%

GF23794195

Molybdenum, tube, 500mm, outside diameter 1.0mm, inside diameter 0.7mm, wall thickness 0.15mm, 99.9%

GF27269635

Molybdenum, rod, 50mm, diameter 25mm, centerless ground, 99.9%

GF76572513

Molybdenum, tube, 100mm, outside diameter 0.5mm, inside diameter 0.38mm, wall thickness 0.06mm, 99.9%

GF38214187

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

GF69235926

Molybdenum, rod, 500mm, diameter 2.0mm, centerless ground, 99.9%

357200

Sigma-Aldrich

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

266892

Sigma-Aldrich

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

357227

Sigma-Aldrich

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

266922

Sigma-Aldrich

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

577987

Sigma-Aldrich

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

203823

Sigma-Aldrich

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

510092

Sigma-Aldrich

Molybdenum, powder, 1-5 μm, ≥99.9% trace metals basis

366986

Sigma-Aldrich

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

GF83341111

Molybdenum, foil, not light tested, 25x25mm, thickness 0.005mm, 99.9%

GF82331265

Molybdenum, foil, light tested, 25x25mm, thickness 0.05mm, annealed, 99.9%

GF25925902

Molybdenum, foil, 25mm disks, thickness 0.05mm, annealed, 99.9%

GF98741504

Molybdenum, foil, 5m coil, thickness 0.04mm, coil width 0.7mm, annealed, 99.9%

GF53516886

Molybdenum, foil, 15mm disks, thickness 0.75mm, annealed, 99.9%

GF75235989

Molybdenum, foil, 6mm disks, thickness 0.0125mm, 99.9%

GF40348065

Molybdenum, foil, 6mm disks, thickness 0.020mm, annealed, 99.9%

GF71483407

Molybdenum, foil, 50mm disks, thickness 0.125mm, annealed, 99.9%

GF02004039

Molybdenum, foil, 4mm disks, thickness 0.01mm, 99.9%

GF23017216

Molybdenum, foil, 6mm disks, thickness 0.025mm, annealed, 99.9%

GF18641022

Molybdenum, foil, 6mm disks, thickness 0.006mm, 99.9%

GF81289840

Molybdenum, foil, 6mm disks, thickness 0.05mm, annealed, 99.9%

GF15340306

Molybdenum, foil, 6mm disks, thickness 0.007mm, 99.9%