Group II introns are a large class of self-catalytic ribozymes and mobile genetic elements found within the genes of all three domains of life. Ribozyme...
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are four main types of introns: tRNA introns, group I introns, group II introns, and spliceosomal introns (see below). Introns are rare in Bacteria and...
47 KB (5,853 words) - 21:36, 25 April 2025
in the structure of large ribonucleotides, including the group I intron, the group II intron, and the ribosome. Quadruplexes Although the major groove...
54 KB (6,384 words) - 05:07, 29 October 2024
Group I introns are large self-splicing ribozymes. They catalyze their own excision from mRNA, tRNA and rRNA precursors in a wide range of organisms....
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Maturase K (redirect from Intron maturase)
encodes is an organelle intron maturase, a protein that splices Group II introns. It is essential for in vivo splicing of Group II introns. Amongst other maturases...
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Group III intron is a class of introns found in mRNA genes of chloroplasts in euglenid protists. They have a conventional group II-type dVI with a bulged...
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temperature (96 °C) step required to denature DNA. In 2013, a thermostable group II intron reverse transcriptase (TGIRT), GsI-IIC-MRF, from G. stearothermophilus...
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The Database for Bacterial Group II Introns is a repository of full-length, non-redundant group II introns present in bacterial DNA sequence. The database...
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is an open reading frame found in the Lactococcus lactis group II introns LtrB. It is an intron-encoded protein, which consists of three subdomains: a...
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existing intron. Twintrons were discovered by Donald W. Copertino and Richard B. Hallick as a group II intron within another group II intron in Euglena...
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Encodes a functional UMP Kinase located in the plastid that binds to group II intron plastid transcription products. Mutants show decreased accumulation...
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Alan Lambowitz (section Group ll Intron Research)
between intron encoded proteins and the size of group II introns seen in host cells. When these introns are capable of encoding for their own intron encoded...
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that of domain V in self-splicing group II introns. The AGC triad found in U6 snRNA is conserved in group II introns and has been found to favor the same...
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Non-coding DNA (section Introns)
[citation needed] Group I and group II introns take up only a small percentage of the genome when they are present. Spliceosomal introns (see Figure) are...
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and catalytic mechanism of U6 snRNA resembles that of domain V of group II introns. The formation of the triple helix in U6 snRNA is deemed to be important...
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RNA splicing (redirect from Intron splicing)
which group II introns are spliced (two transesterification reaction like group I introns) is as follows: The 2'OH of a specific adenosine in the intron attacks...
38 KB (4,660 words) - 16:36, 26 February 2025
History of molecular biology (section The renaissance: the hammerhead ribozyme and the group I intron: P4-6)
Taylor SD, Pyle AM (April 2008). "Crystal structure of a self-spliced group II intron". Science. 320 (5872): 77–82. Bibcode:2008Sci...320...77T. doi:10.1126/science...
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separated and distributed between two daughter cells. On the other hand, meiosis II is similar to mitosis. The chromatids are separated and distributed in the...
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known RNAs that are longer than OLE RNA are ribozymes such as the group II intron and ribosomal RNAs. The exceptional length and highly conserved structure...
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acid Gly God gene Gradient Gray crescent gRNA Ground state Group 1 intron Group II intron Group selection Guanine Guanosine Guide RNA Gynandromorph H-Y antigen...
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Class II or DNA transposon Plasmid Fertility Resistance Col Degradative Virulence/Ti Cryptic Cosmid Fosmid Phagemid Group I intron Group II intron Retrozyme...
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Class II or DNA transposon Plasmid Fertility Resistance Col Degradative Virulence/Ti Cryptic Cosmid Fosmid Phagemid Group I intron Group II intron Retrozyme...
6 KB (634 words) - 22:52, 2 December 2023
Class II or DNA transposon Plasmid Fertility Resistance Col Degradative Virulence/Ti Cryptic Cosmid Fosmid Phagemid Group I intron Group II intron Retrozyme...
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regulation Long non-coding RNA Missense mRNA Splicing – process of removing introns from precursor messenger RNA (pre-mRNA) to make messenger RNA (mRNA) Transcriptomics...
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Mefford MA, Piccirilli JA, Staley JP (May 2014). "Evidence for a group II intron-like catalytic triplex in the spliceosome". Nature Structural & Molecular...
18 KB (2,335 words) - 16:05, 28 November 2024
self-splicing RNA structure. Group II intron mobility is mediated by a ribonucleoprotein comprising an intron lariat bound to two intron-coded proteins. diversity-generating...
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by Robert Freitas and Ralph Merkle has identified 137 design dimensions grouped into a dozen separate categories, including: (1) Replication Control, (2)...
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reaction is an aminoacyl-tRNA. The amino acid is joined by its carboxyl group to the 3' OH of the tRNA by an ester bond. When the tRNA has an amino acid...
36 KB (4,225 words) - 02:57, 1 June 2025
significance, particularly in studies of plastid genome reduction and group II intron mobility. The type species for Bulboplastis is Bulboplastis apyrenoidosa...
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without being "gutted". The term satellite virus has been given to a large group of viruses that all require the presence of another virus to replicate....
5 KB (689 words) - 01:34, 10 March 2024