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The roles of quadruplex structure in translation control are not as well explored. The direct visualization of G-quadruplex structures in human cells [47] as well as the co-crystal structure of an RNA helicase bound to a G-quadruplex [48] have provided important confirmations of their relevance to cell biology. The potential positive and ...
Quadruplex may refer to: Quadruplex (New Orleans), a softball complex in New Orleans City Park; Quadruplex telegraph, an improvement on the electrical telegraph ...
The Quadruplex telegraph is a type of electrical telegraph which allows a total of four separate signals to be transmitted and received on a single wire at the same time (two signals in each direction).
The term "duplex" is not extended to three-unit and four-unit buildings, as they would be referred to with specific terms such as three-family (or triplex [1]) and fourplex (or quadplex/quadruplex) or a more general multiplex. [2]
The quadruplex can repeat several times consecutively, producing an immensely stable structure. The unique structure of quadruplex regions in RNA may serve different functions in a biological system. Two important functions are the binding potential with ligands or proteins, and its ability to stabilize the whole tertiary structure of DNA or RNA.
2-inch quadruplex videotape (also called 2″ quad video tape or quadraplex) was the first practical and commercially successful analog recording video tape format. [1] It was developed and released for the broadcast television industry in 1956 by Ampex , an American company based in Redwood City, California . [ 2 ]
The different types of topologies in G-quadruplex, propeller, lateral, and diagonal. G-quadruplexes, also known as G4 DNA are secondary structures found in nucleic acids that are rich in guanine. [1] These structures are normally located at the telomeres (the ends of the chromosomes). The G-quadruplex can either be parallel or antiparallel ...
Hoogsteen pointed out that if the alternative hydrogen-bonding patterns were present in DNA, then the double helix would have to assume a quite different shape. Hoogsteen base pairs are observed in alternative structures such as the four-stranded G-quadruplex structures that form in DNA and RNA.