Adsorption of Proteins on Dusts Related to the Pneumoconioses: Selectivity

McFEE, Donald R.; Tye, Russell

doi:10.1097/00043764-196506000-00008

Cited by 3 publications

(1 citation statement)

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“…Another possibility is the synthesis r of a crystal structure involving silicic acid within the enzyme digest. The equation describing its formation should then incorporate factors such as pH and temperature (26), salt concentration, intermicellar liquid and its interaction with the gel surface (25), effects of protein-silicate complexes (10), ion-exchange properties of the crystalline silica (22), porosity of the structure (1), selectivity of crystal-protein relationships (24), and effective water concentration of the digest. The apparent affinity of Si for cane hydrolytic enzymes (invertase, amylase, phosphatase, ATP-ase) suggests a possible relationship between a silicic acid gel and the water involved in actual hydrolysis.…”

Section: Inactivation Of Cane and Yeast Invertase By Siliconmentioning

confidence: 99%

Título en español.

Alexander¹

1969

JAUPR

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Comparative studies of sugarcane invertase and a commercial yeast invertase were conducted. There were two objectives: 1, To identify specific enzyme types on the basis of action patterns against a series of substrates; and 2, to determine whether cane invertase, derived from a highly developed plant species, is identical with the invertase of a primitive plant form. Cane invertase was prepared from lyophilized immature storage tissues, while yeast invertase was obtained commercially as a desiccated extract of yeast cells. Substrates included sucrose, raffinose, stachyose, melibiose, inulin, and soluble potato starch. The cane-invertase complex gave evidence of three carbohydrases: ß-fructosidase, α-galactosidase, and α-glucosidase. Yeast invertase gave only ß-fructosidase activity. Both types of invertase were readily inhibited by silicon, and possible modes of silicon action are discussed. Similarities were noted between sugarcane invertase and sugarcane amylase. The two cane systems appear more nearly identical than cane and yeast invertase. Cane invertase, a more highly versatile enzyme complex than yeast invertase, apparently reflects the more complicated biochemical requirements of a higher plant species.

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Section: Inactivation Of Cane and Yeast Invertase By Siliconmentioning

confidence: 99%

Título en español.

Alexander¹

1969

JAUPR

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Physicochemical Properties of Minerals Relevant to Biological Activities: State of the Art

Langer

Nolan

1985

In Vitro Effects of Mineral Dusts

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Crystal faces and cleavage planes in quartz as templates in biological processes

Langer

1978

Quart. Rev. Biophys.

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Some species of minerals, when comminuted and aerosolized in the form of respirable-size particulate dusts, are recognized as capable of producing disease in man after their inhalation. Comprehensive listings of such agents are in the current literature (e.g. in Aponte, 1970; Langer & Mackler, 1972; Ehrenreich et al. 1973a, b) and many of these and their effects are well known and receive much attention. Asbestos fibres of all varieties, ampbibole and quartz contaminated talcum powders (see Rohl et al. 1976), fibrous amphiboles and their cleavage fragments which contaminate the ambient environment (e.g., the contamination of Lake Superior with cummingtonite-grunerite, as discussed in Bowes, Langer & Rohl, 1977), have been the subject of recent intensive investigations mostly due to their protential impact to large segments of the general population.

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Adsorption of Proteins on Dusts Related to the Pneumoconioses: Selectivity

Cited by 3 publications

References 0 publications

Título en español.

Título en español.

Physicochemical Properties of Minerals Relevant to Biological Activities: State of the Art

Crystal faces and cleavage planes in quartz as templates in biological processes

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