Biomaterial Database

The distribution of soluble copper- and zinc-binding proteins in goat liver. 1979

M Mjør-Grimsrud, and N E Søli, and T Sivertsen

The distribution of copper and zinc in the soluble proteins from goat liver after gel filtration were determined. Samples from normal slaughtered animals as well as from experimentally copper-loaded goats were tested. The copper- and zinc-binding proteins were mainly separated into 3 different fractions. The approximate molecular weights were greater than 65,000, 35,000 and 10,000. Varying amounts of zinc were eluted in a fourth fraction of molecular weight less than 2000. The results indicate that the distribution of copper and zinc among soluble metal-binding proteins are highly dependent on the total liver zinc concentration. In the majority of samples, with zinc levels within 20 to 45 microgram/g wet weight, the dominating copper- and zinc-binding protein fraction was the high-molecular weight fraction. This did not seem to be influenced by the total liver copper level. In the samples with high total zinc levels (greater than 60 microgram/g w.w.) there was a shift in protein distribution of both metals toward the low-molecular weight fractions.

UI	MeSH Term	Description	Entries
D008099	Liver	A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.	Livers
D008970	Molecular Weight	The sum of the weight of all the atoms in a molecule.	Molecular Weights,Weight, Molecular,Weights, Molecular
D011485	Protein Binding	The process in which substances, either endogenous or exogenous, bind to proteins, peptides, enzymes, protein precursors, or allied compounds. Specific protein-binding measures are often used as assays in diagnostic assessments.	Plasma Protein Binding Capacity,Binding, Protein
D002850	Chromatography, Gel	Chromatography on non-ionic gels without regard to the mechanism of solute discrimination.	Chromatography, Exclusion,Chromatography, Gel Permeation,Chromatography, Molecular Sieve,Gel Filtration,Gel Filtration Chromatography,Chromatography, Size Exclusion,Exclusion Chromatography,Gel Chromatography,Gel Permeation Chromatography,Molecular Sieve Chromatography,Chromatography, Gel Filtration,Exclusion Chromatography, Size,Filtration Chromatography, Gel,Filtration, Gel,Sieve Chromatography, Molecular,Size Exclusion Chromatography
D003300	Copper	A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55.	Copper-63,Copper 63
D006041	Goats	Any of numerous agile, hollow-horned RUMINANTS of the genus Capra, in the family Bovidae, closely related to the SHEEP.	Capra,Capras,Goat
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D015032	Zinc	A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.