Serine Protease Inhibitors

Serine protease inhibitors or "serpins" form a large family of inhibitors that regulate various physiological processes such as angiogenesis, neoplasmia, apoptosis, inflammation, coagulation, fibrinolysis and viral pathogenesis. Dysfunction of such…

Cationic polymers

See also Drug Deliver where cationic polymers have been sued.  Naturally derived Cationic Polymers Cellulose: (C6H10O5)n  is a polysaccharide consisting of a linear chain of several hundred to many thousands of…

Ligand gated

Ligand gated ion channels/receptors are large multisubunit complexes which are usually pentamers (5 subunits) that form an ion channel in the membrane. The complex may be heteromeric in that it is composed…

Types of hormones

See also Hormones, generally  See also Signal transduction Introduction: Hormones may be categorized as lipophilic (fat-soluble), which are nonpolar, or hydrophilic (water-soluble), which are polar. The lipophilic hormones include the…

Topoisomerases

DNA topoisomerases are able to modify the termtiary structure of circular DNA. Prokaryotic enzymes do not require ATP, as do eukaryotic topoisomerases. DNA topoisomerases have been classified into two types:…

Polymerases

Polymerases are enzymes which polymerize new DNA or RNA using an existing DNA or RNA template. Polymerases are essential in DNA replication and transcription. PARPS  See outline Tankyrasses (TANKs) TANKs…

Oxidoreductases

An oxidoreductase is an enzyme that catalyzes the transfer of electrons from one molecule called "the reductant" or "electron donor" to another molecule called "the oxidant" or the "electron acceptor". This group…

Neuraminidases

Neuraminidases (also known as sialidases): are enzymes that have been identified in many viruses, bacteria and eukaryotes that cleave sialic acid moieties and can be involved in many functions in vivo. It has…

Glycosidase

See also ABO blood antigens   See also removing A and B antigens from Type A, B, and AB cells Glycosidase refers to an enzyme that cleaves a covalent bond between sequential sugars in…

Glycosyltransferases

The glycosyltransferases are a family of some 250-300 different intracellular, mebrane-bound enzymes that participate in the coordinate biosynthesis of the glycostructures of polypeptides, including glycoproteins, proteoglycans and glycolipids. They are…