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Featured Pathways

Displaying 121 to 132 (of 789 pathways)

Featured Pathways

GAs (Gibberellins) are members of a large family of Diterpenoid compounds, which are essential for a number of processes, including Gene Expression in Cereal Aleurones, Seed Germination, Elongation, Growth, and Flowering. During the last four decades, Barley Aleurone has been a valuable system for studying GA regulation of gene expression. After germination, GAs are released[..]

The nuclei of all eukaryotic cells contain three different RNA Polymerases, designated I, II and III. Like the DNA polymerase that catalyzes DNA replication, RNA Polymerases catalyze the formation of the phosphodiester bonds that link the nucleotides together to form a linear chain. The RNA polymerase moves stepwise along the DNA, unwinding the DNA helix just ahead of the active site for[..]

The nuclei of all eukaryotic cells contain three different RNA Polymerases, designated I, II and III. Like the DNA Polymerase that catalyzes DNA replication, RNA Polymerases catalyze the formation of the phosphodiester bonds that link the nucleotides together to form a linear chain. Each eukaryotic RNA Polymerase catalyzes transcription of genes encoding different classes of RNA. RNA[..]

The nuclei of all eukaryotic cells contain three different RNA Polymerases, designated I, II and III. Like the DNA Polymerase that catalyzes DNA replication, RNA Polymerases catalyze the formation of the phosphodiester bonds that link the nucleotides together to form a linear chain. Each eukaryotic RNA Polymerase catalyzes transcription of genes encoding different classes of RNA. Transcription by[..]

During the final step in formation of a mature, functional mRNA, the introns are removed and exons are spliced together. The discovery that introns are removed during splicing came from electron microscopy of RNA-DNA hybrids between adenovirus DNA and the mRNA encoding hexon, a major virion capsid protein. For short transcription units, RNA splicing usually follows cleavage and polyadenylation of[..]

ATP Binding Cassette transporters comprise a large family of membrane-spanning proteins that are responsible for transporting a variety of substrates in prokaryotes and eukaryotes. The most intriguing and, arguably, the most important membrane proteins for this purpose are the ABC (ATP-Binding Cassette) transporters. These proteins, found in all species, use the energy of ATP hydrolysis to[..]

Biotin is a water-soluble vitamin found in all organisms that functions as a cofactor of Biotin-dependent carboxylases. It belongs to the B-Complex group of Vitamins and is an essential micronutrient for all mammals. The role of Biotin (or Vitamin-H) in Carboxylases is to act as vector for carboxyl-group transfer between donor and acceptor molecules during Carboxylation reaction (Ref.1). In[..]

Biotin is a water-soluble Vitamin required by all organisms by virtue of its essential role in carboxylation reactions. Whereas animals lack the ability to synthesize Biotin, it is synthesized by microorganisms and plants and therefore is widespread in the food supply at low concentrations relative to most water-soluble Vitamins (Ref.1). The highest level of Biotin occurs in organ meats such[..]

Herpesviridae is a large family of viruses including several members that are pathogenic to humans, causing a variety of disorders ranging from cold sores and chicken pox to less frequent conditions such as blindness and cancers. HSV1 (Herpes Simplex Virus Type-1), the prototypical member of this family, is a large DNA-containing neurotropic virus endemic in all human populations. Following an[..]

Sterols are a structurally conserved class of lipids that play multifaceted roles in Eukaryotes, serving as essential components of Cell membranes and precursors to Steroid hormones. Characterized by a –OH group on the C3 of the Steroid nucleus, Sterols represent the most abundant type of Steroids in Vertebrates as well as in Plants. In Vertebrates, Cholesterol is by far the[..]

Stmn1 (Stathmin-1) also referred to as Op18 (Oncoprotein-18) is a major regulator of microtubule dynamics. It is an evolutionarily well conserved 17 kDa cytoplasmic phosphoprotein that is highly expressed in a wide variety of cancers and its high abundance seems to be necessary for the maintenance of the transformed phenotypes. Breast cancers exhibit high levels of Stmn1 and may be resistant to[..]

The process by which the body prevents blood loss is referred to as coagulation. Thrombin/TFIIa (Activated Factor-II) is a multifunctional serine proteinase, which serves as an essential component of the process of Blood Coagulation - the hemostatic process of greatest interest. When a blood vessel is injured, bleeding is stopped by clotting (Coagulation) factors that form a thrombus (clot) of[..]

Displaying 121 to 132 (of 789 pathways)
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