Biomaterial Database

[Crystallized human plasma proteins. I. Albumin, transthyretin, retinol-binding protein, ceruloplasmin and beta 2-glycoprotein I]. 1988

H Haupt, and S Baudner

Behringwerke Forschungslaboratorien, Marburg, Bundesrepublik Deutschland.

The presently known possibilities and conditions for achieving the crystallization of Albumin, Transthyretin, Retinol-binding Protein, Ceruloplasmin and beta 2-Glycoprotein I are described with respect to our own experiences. For isolating some proteins the crystallization gives rise to a real purification step. Sometimes degrees of purity near to 98 till 99% will be reached. Furthermore crystalline proteins are very important for the determination of the three-dimensional structure by aid of the X-ray diffraction analysis. For this purpose large single crystals are needed with minimum requirements of 0.4 mm length for all the three dimensions. Additionally the crystals must have a high degree of order on the molecular level and should allow recording of the diffraction pattern out to 3 A resolution. From the five proteins described here the three dimensional molecular structure of Transthyretin and Retinol-binding Protein could be elucidated by using the method of the X-ray diffraction analysis.

UI	MeSH Term	Description	Entries
D011228	Prealbumin	A tetrameric protein, molecular weight between 50,000 and 70,000, consisting of 4 equal chains, and migrating on electrophoresis in 3 fractions more mobile than serum albumin. Its concentration ranges from 7 to 33 per cent in the serum, but levels decrease in liver disease.	Proalbumin,Transthyretin
D002570	Ceruloplasmin	A multi-copper blood FERROXIDASE involved in iron and copper homeostasis and inflammation.	Caeruloplasmin,Ferroxidase,Ceruloplasmin Ferroxidase,Ceruloplasmin Oxidase,Ferroxidase I,alpha(2)-Ceruloplasmin,Ferroxidase, Ceruloplasmin,Oxidase, Ceruloplasmin
D002621	Chemistry	A basic science concerned with the composition, structure, and properties of matter; and the reactions that occur between substances and the associated energy exchange.
D003460	Crystallization	The formation of crystalline substances from solutions or melts. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)	Crystalline Polymorphs,Polymorphism, Crystallization,Crystal Growth,Polymorphic Crystals,Crystal, Polymorphic,Crystalline Polymorph,Crystallization Polymorphism,Crystallization Polymorphisms,Crystals, Polymorphic,Growth, Crystal,Polymorph, Crystalline,Polymorphic Crystal,Polymorphisms, Crystallization,Polymorphs, Crystalline
D006023	Glycoproteins	Conjugated protein-carbohydrate compounds including MUCINS; mucoid, and AMYLOID glycoproteins.	C-Glycosylated Proteins,Glycosylated Protein,Glycosylated Proteins,N-Glycosylated Proteins,O-Glycosylated Proteins,Glycoprotein,Neoglycoproteins,Protein, Glycosylated,Proteins, C-Glycosylated,Proteins, Glycosylated,Proteins, N-Glycosylated,Proteins, O-Glycosylated
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012177	Retinol-Binding Proteins	Proteins which bind with RETINOL. The retinol-binding protein found in plasma has an alpha-1 mobility on electrophoresis and a molecular weight of about 21 kDa. The retinol-protein complex (MW	Retinoid Binding Protein,Retinol Binding Protein,Retinoid Binding Protein, F-Type,Retinoid Binding Proteins,Retinol Binding Proteins,Binding Protein, Retinoid,Binding Protein, Retinol,Binding Proteins, Retinoid,Binding Proteins, Retinol,Protein, Retinoid Binding,Protein, Retinol Binding,Retinoid Binding Protein, F Type
D012709	Serum Albumin	A major protein in the BLOOD. It is important in maintaining the colloidal osmotic pressure and transporting large organic molecules.	Plasma Albumin,Albumin, Serum
D053482	beta 2-Glycoprotein I	A 44-kDa highly glycosylated plasma protein that binds phospholipids including CARDIOLIPIN; APOLIPOPROTEIN E RECEPTOR; membrane phospholipids, and other anionic phospholipid-containing moieties. It plays a role in coagulation and apoptotic processes. Formerly known as apolipoprotein H, it is an autoantigen in patients with ANTIPHOSPHOLIPID ANTIBODIES.	Apolipoprotein H,Anticardiolipin Cofactor,Apo H,EC-VMFa,Endothelial Cell-Viability Maintaining Factor,beta(2)GPI,beta2-Glycoprotein I,Cofactor, Anticardiolipin,EC VMFa,Endothelial Cell Viability Maintaining Factor,beta 2 Glycoprotein I,beta2 Glycoprotein I
D054839	Retinol-Binding Proteins, Plasma	Retinol binding proteins that circulate in the PLASMA. They are members of the lipocalin family of proteins and play a role in the transport of RETINOL from the LIVER to the peripheral tissues. The proteins are usually found in association with TRANSTHYRETIN.	Plasma Retinol-Binding Proteins,Plasma Retinol Binding Proteins,Retinol Binding Proteins, Plasma