Metal storage

METALLOPROTEINS. Metalloproteins are either metal storage forms, as in the case of ferritin, or enzymes in which the metal atom participates in a catalyti-cally important manner. We encounter many examples throughout this book of the vital metabolic functions served by metalloenzymes. [Pg.126]

Schacht-ofen, m. shaft furnace blast furnace shaft kiln, -speicber, m. (Metal.) storage bin (Agric.) silo, -trockner, m. tunnel drier. [Pg.382]

Theil, E. C. Raymond, K. M. Transition-Metal Storage, Transport, and Biomineralization University Science Books Mill Valley, CA, 1994. [Pg.327]

Rahman, Y. E. (1988). Use of liposomes in metal poisonings and metal storage diseases, in Liposomes as Drug Carriers Recent Trends and Progress (G. Gregoriadis, ed.), John Wiley and Sons, Chichester, pp. 485-495. [Pg.332]

Metallothioneins are an ubiquitous class of proteins with which the important roles of metal storage (Cu, Zn) and detoxification (Cd, Pb, Hg) are associated EXAFS studies have been carried out on a variety of metallothioneins including Zttj, ZUjCuj, ZiigCuj, Cd, and to show that metal atoms are exclusively... [Pg.83]

Rossmann R. 1988. Estimation of trace metal storage in Lake St. Clair post-settlement sediments using composite samples. J Great Lakes Res 14 66-75. [Pg.249]

Metal storage proteins also form a variety of nitrosyl complexes. Metallothi-onein has been shown to form a low-spin complex with Fe and NO (Kennedy et al., 1993). Ferritin contains multiple iron binding sites capable of forming spectroscopically distinguishable nitrosyl complexes (Lee et al., 1994 LeBrun et al., 1993). [Pg.96]

Table XVI shows two experiments which compared the same wine stored under different conditions (46). In both cases, the wine richer in anthocyanins is also that which is less colored. The mediation of tannins is not enough to explain the differences in color these can only be explained by a different structuring of the anthocyanin molecules. More specifically, the anthocyanin molecules will be reduced to colorless flavenes (14) during fermentation, which is a reductive process. The reoxidation occurs more rapidly in wooden casks which allow better oxygen penetration than metal storage tanks or large capacity casks. However, the flavenes themselves are relatively instable and can be irreversibly hydrolyzed into dihydrochalcones (16). This explains the lack of relationship between anthocyanin concentration and color, independent, of course, of the eventual appearance of free sulfur dioxide.

Copper 80 mg 2-3 mg Metal storage/transport (ceruloplasmin) enzymes in synthesis of cartilage, bone, myelin interaction with iron Occurs in malnutrition, TPN anemia, neutropenia, skeletal and neurological defects Danger in Wilson s disease... [Pg.762]

Catalyst D presents meso/microporous structure (10) with 100% of pore volume below 150 A as a result its metal storage capacity is the lowest. Catalyst C is also considered of meso/microporous structure with 64% of pore volume below 150 A. Catalyst B presents a considerable fraction of larger pores (60% pore volume between 150-300 A). Catalyst A presents a bimodai porous structure with 33% of pore volume larger than 300 A. [Pg.88]

Metallothionein is a metal storage protein, not a circulating protein. Superoxide dismutases are present in various subcellular particles, for example mitochondria. Peroxisomes contain peroxidases such as catalase. Superoxide dismutases convert the superoxide anion to H202 and are absent from anaerobic microorganisms. [Pg.151]

Metal bridges are formed from enzymes or hormones to the substrates. These intermediate complexes are able to enhance the reaction in a number of metabolic processes, 3. Some metal ions are known to act as a cofactor or coenzyme being involved in redox reactions directly. Further, metalloproteins may serve as a pool for metal storage. Examples for this are displayed by ferritin, transferrin or ferrichrome, to mention just a few. [Pg.42]

Classic examples of conditions associated with transition metal storage... [Pg.68]

Arguably the two most often cited examples of metal storage diseases are Wilson s disease (excess copper) and haemochromatosis (excess iron), which are each considered briefly in turn. [Pg.68]

Cause/Incidence Hereditary autosomal recessive genetic disorder first described by Wilson in 1912, which gives rise to altered copper transport resulting in excess metal storage. This condition is more commonly observed in males, with an incidence of around 1 in 30 000, and it is believed 1 in 100 individuals are imaffected carriers. [Pg.68]

There are solvent-free systems with 100% solids principally used as protective coatings for concrete or metal storage tanks. Such coatings are unpigmented, clear compositions. They are thixotropic and can be applied both on horizontal and on vertical surfaces. [Pg.76]

For underground burial, incorporation of the highly radioactive fission (HRF) products into a glass or ceramic material is better than placing it in metal storage drums. [Pg.230]

The use of organic solvents in a clinical laboratory represents a potential fire hazard and hazards to health from inhalation of toxic vapors or skin contact. These solvents should be used m a fume hood. Storage of organic solvents is regulated by rules set down by OSHA (Table 1-16). However, some local fire department rules are more stringent. Solvents should be stored in an OSHA-approved metal storage cabinet that is properly vented. The maximum working volume of flam-... [Pg.34]

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