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Biochemistry of magnesium

100%

Pasternak K., Kocot J., Horecka A.

Journal of Elementology

2010

tom 15

nr 3

601-616

Magnesium is essential for biochemical functions of cells. Since Mg2+ has a relatively low ionic radius in proportion to the size of the nucleus (0.86 versus 1.14 f A for Ca2+), it shows exceptional biochemical activity. Due to its physicochemical properties, intracellular magnesium can bind to the nucleus, ribosomes, cell membranes or macromolecules occurring in the cell’s cytosol. It is indispensable for the nucleus to function as a whole and for the maintenance of physical stability as well as aggregation of rybosomes into polysomes able to initiate protein synthesis. Mg2+ can also act as a cofactor for ribonucleic acid enzymes (ribozymes) capable of specifically recognizing and cleaving the target mRNA. As an essential cofactor in NER, BER, MMR processes, Mg2+ is required for the removal of DNA damage. An activator of over 300 different enzymes, magnesium participates in many metabolic processes, such as glycolysis, Krebs cycle, β-oxidation or ion transport across cell membranes. Mg2+ plays a key role in the regulation of functions of mitochondria, including the control of their volume, composition of ions and ATP production.

The effect of cAMP and some sulphur compounds upon the activity of Mercaptopyruvate sulphurtransferase and rhodanese in mouse liver

80%

Wrobel M., Frendo J.

Folia Biologica

1992

tom 40

nr 1-2

Ograniczanie wyników

1 Folia Biologica

1 Journal of Elementology

1 Frendo J.

1 Horecka A.

1 Kocot J.

1 Pasternak K.

1 Wrobel M.

1 2010

1 1992

Wyniki wyszukiwania

Biochemistry of magnesium

The effect of cAMP and some sulphur compounds upon the activity of Mercaptopyruvate sulphurtransferase and rhodanese in mouse liver