Protein general categories

The many redox reactions that take place within a cell make use of metalloproteins with a wide range of electron transfer potentials. To name just a few of their functions, these proteins play key roles in respiration, photosynthesis, and nitrogen fixation. Some of them simply shuttle electrons to or from enzymes that require electron transfer as part of their catalytic activity. In many other cases, a complex enzyme may incorporate its own electron transfer centers. There are three general categories of transition metal redox centers cytochromes, blue copper proteins, and iron-sulfur proteins. 

The principal application of SPR is affinity analysis in biological systems. We focus on bio-interaction analysis with SPR in three general categories carbohydrate-protein, DNA-protein/protein-protein, and lipid-protein interactions. These studies make up the major areas of SPR-based biological sensors. 

The immobilization methods available are divided in two general categories (i) covalent coupling and (ii) affinity non-covalent interactions. Covalent coupling gives a stable immobilization as the receptors do not dissociate from the surface or exchange with other proteins in solution. 

C Nmr investigations of proteins and/or polypeptide systems can be classified into three general categories (1) 1 3C chemical shifts and spin lattice relaxation times of native and specifically labelled or 13C-enriched proteins and subunits (2) helix-coil transitions of polypeptides and (3) binding studies, protein-substrate interactions and complex formation. 

Radical reactions of protein. Radical reactions of proteins promoted by lipid hydroperoxides fall into three general categories (a) protein-protein or lipid-protein crosslinking, (b) protein scission, and (c) protein oxidation. 

The general categories of lipoproteins are listed in the order from larger and less dense (more fat than protein) to smaller and denser (more protein, less fat) ... 

IX is widely used to concentrate and recover antibiotics and vitamins from fermentation broths. For example, streptomycin molecule, which is moderately basic, is very favourably exchanged by the sodium form of macroporous WAC resins. General categories of biological compounds that are recovered and purified by IX include antibiotics, vitamins, nucleotides, amino acids, proteins, enzymes and viruses. 

Protein microarrays can be classified into three general categories regarding their applications expression profiling, interaction profiling, and functional identification. Protein expression profiles reflect the concentration profile of... 

By what mechanisms are multiple forms of an enzyme or nonenzymic protein generated Two general categories can be distinguished ... 

The basic approaches for generating arrays of test molecules such as nucleic acid, protein or other organic molecules fall into two general categories (82) ... 

Proteins generally fall into one of two main classes fibrous or globular. Fibrous proteins are animal structural materials and hence are water insoluble. They, in turn, fall into three general categories the keratins, which make up protective tissue, such as skin, hair, feathers, claws, and nails the collagens, which form connective tissue, such as cartilage, tendons, and blood vessels and the silks, such as the fibroin of spider webs and cocoons. 

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