The Lariat Capping Ribozyme
Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
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The Lariat Capping Ribozyme. / Nielsen, Henrik; Krogh, Nicolai; Masquida, Benoît; Johansen, Steinar Daae.
Ribozymes: Principles, Methods, Applications. red. / Sabine Müller; Benoît Masquida; Wade Winkler. Bind 2 Wiley, 2021. s. 117-142.Publikation: Bidrag til bog/antologi/rapport › Bidrag til bog/antologi › Forskning › fagfællebedømt
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TY - CHAP
T1 - The Lariat Capping Ribozyme
AU - Nielsen, Henrik
AU - Krogh, Nicolai
AU - Masquida, Benoît
AU - Johansen, Steinar Daae
PY - 2021
Y1 - 2021
N2 - The lariat capping ribozyme (LCrz) constitutes an independent class of ribozymes. It is the defining feature of twin-ribozyme group I introns found in eukaryotic microorganisms. Its main function is to provide an intron-encoded homing endonuclease mRNA with a 5′-cap necessitated by the expression of the mRNA from within an intron in a ribosomal RNA gene. The cap is a tiny lariat in which the first and the third nucleotides are linked with a 2′, 5′ phosphodiester bond. A model for the origin of LCrz from group I intron splicing ribozymes by structural reorganization is well-supported. This shows the emergence of a branching reaction in a group I ribozyme scaffold and may be important in explaining the evolution of RNA splicing.
AB - The lariat capping ribozyme (LCrz) constitutes an independent class of ribozymes. It is the defining feature of twin-ribozyme group I introns found in eukaryotic microorganisms. Its main function is to provide an intron-encoded homing endonuclease mRNA with a 5′-cap necessitated by the expression of the mRNA from within an intron in a ribosomal RNA gene. The cap is a tiny lariat in which the first and the third nucleotides are linked with a 2′, 5′ phosphodiester bond. A model for the origin of LCrz from group I intron splicing ribozymes by structural reorganization is well-supported. This shows the emergence of a branching reaction in a group I ribozyme scaffold and may be important in explaining the evolution of RNA splicing.
U2 - 10.1002/9783527814527.ch5
DO - 10.1002/9783527814527.ch5
M3 - Book chapter
SN - 978-3-527-34454-3
VL - 2
SP - 117
EP - 142
BT - Ribozymes
A2 - Müller, Sabine
A2 - Masquida, Benoît
A2 - Winkler, Wade
PB - Wiley
ER -
ID: 299818027