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Identical LTR sequences at either end of a retrotransposon. A long terminal repeat (LTR) is a pair of identical sequences of DNA, several hundred base pairs long, which occur in eukaryotic genomes on either end of a series of genes or pseudogenes that form a retrotransposon or an endogenous retrovirus or a retroviral provirus.
LTR or similar may refer to: Measurement. Ltr. (for 'litre' or 'liter'), a unit of volume; Letter (paper size) Science and technology.
LTR retrotransposons have direct long terminal repeats that range from ~100 bp to over 5 kb in size. LTR retrotransposons are further sub-classified into the Ty1-copia-like (Pseudoviridae), Ty3-like (Metaviridae, formally referred to as Gypsy-like, a name that is being considered for retirement [4]), and BEL-Pao-like (Belpaoviridae) groups based on both their degree of sequence similarity and ...
Logic Trunked Radio (LTR) is a radio system developed in the late 1970s by the E. F. Johnson Company. [1] LTR is distinguished from some other common trunked radio systems in that it does not have a dedicated control channel. LTR systems are limited to 20 channels (repeaters) per site and each site stands alone (not linked).
LTRs are highly functional sequences, and for that reason LTR and non-LTR retrotransposons differ greatly in their reverse transcription and integration mechanisms. Non-LTR retrotransposons use a target-primed reverse transcription (TPRT) process, which requires the RNA of the TE to be brought to the cleavage site of the retrotransposon’s ...
The ends of each strand of HIV RNA contain an RNA sequence called a long terminal repeat (LTR). Regions in the LTR act as switches to control production of new viruses and can be triggered by proteins from either HIV or the host cell. The Psi element is involved in viral genome packaging and recognized by gag and rev proteins.
The network consists of two lines: the original Line 1 or Green Line, and the more modern Line 2, or Blue Line. Line 1 is aligned in a general north–south direction along over 25.9 kilometers (16.1 mi) of fully elevated track.
In Los Angeles, expansion of mass transit has been driven in large part by light rail.. Light rail (or light rail transit, abbreviated to LRT) is a form of passenger urban rail transit that uses rolling stock derived from tram technology [1] while also having some features from heavy rapid transit.