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Ferredoxin Fold
In protein structure, a ferredoxin fold is a common α+β protein fold with a signature βαββαβ secondary structure along its backbone. Structurally, the ferredoxin fold can be regarded as a long, symmetric hairpin that is wrapped once around, so that its two terminal β-strands hydrogen-bond to the central two β-strands, forming a four-stranded, antiparallel β-sheet The beta sheet, (β-sheet) (also β-pleated sheet) is a common motif of the regular protein secondary structure. Beta sheets consist of beta strands (β-strands) connected laterally by at least two or three backbone hydrogen bonds, forming a g ... covered on one side by two α-helices. External links SCOP list of proteins with a ferredoxin-like fold References Protein folds {{protein-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2acy Ferredoxin Fold
Acy or ACY may refer to: Places France *Acy, Aisne *Acy-Romance, Ardennes *Acy-en-Multien, Oise United Kingdom * Abercynon railway station (National Rail code: ACY), a railway station on the Merthyr Line in South Wales * Archway tube station (London Underground code: ACY), a tube station on the High Barnet branch of the Northern line in Archway, London United States *Acy, Louisiana * Atlantic City, New Jersey, a city in southern New Jersey known for its boardwalk and casinos ** Atlantic City International Airport (IATA code: ACY) an airport in Egg Harbor Township that serves the Atlantic City area ** Atlantic City Rail Terminal (Amtrak code: ACY), a railway station on New Jersey Transit's Atlantic City Line People with the surname *Quincy Acy (born 1990), American basketball player Other uses * Akron, Canton and Youngstown Railroad, a former railroad in Ohio, US * Cypriot Maronite Arabic, a moribund variety of Arabic spoken by the Maronite community of Cyprus {{disambiguatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
α+β Protein Fold
In molecular biology, protein fold classes are broad categories of protein tertiary structure topology. They describe groups of proteins that share similar amino acid and secondary structure proportions. Each class contains multiple, independent protein superfamilies (i.e. are not necessarily evolutionarily related to one another). Generally recognised classes Four large classes of protein that are generally agreed upon by the two main structure classification databases (SCOP and CATH). all-α All-α proteins are a class of structural domains in which the secondary structure is composed entirely of α-helices, with the possible exception of a few isolated β-sheets on the periphery. Common examples include the bromodomain, the globin fold and the homeodomain fold. all-β All-β proteins are a class of structural domains in which the secondary structure is composed entirely of β-sheets, with the possible exception of a few isolated α-helices on the periphery. Common ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beta Sheet
The beta sheet, (β-sheet) (also β-pleated sheet) is a common motif of the regular protein secondary structure. Beta sheets consist of beta strands (β-strands) connected laterally by at least two or three backbone hydrogen bonds, forming a generally twisted, pleated sheet. A β-strand is a stretch of polypeptide chain typically 3 to 10 amino acids long with backbone in an extended conformation. The supramolecular association of β-sheets has been implicated in the formation of the fibrils and protein aggregates observed in amyloidosis, notably Alzheimer's disease. History The first β-sheet structure was proposed by William Astbury in the 1930s. He proposed the idea of hydrogen bonding between the peptide bonds of parallel or antiparallel extended β-strands. However, Astbury did not have the necessary data on the bond geometry of the amino acids in order to build accurate models, especially since he did not then know that the peptide bond was planar. A refined versi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
