Group III intron

Group III
Group III intron is a class of introns found in mRNA genes of chloroplasts in euglenid protists.wikipedia
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Intron

intronsintragenicintronic
Group III intron is a class of introns found in mRNA genes of chloroplasts in euglenid protists.

Group II intron

group IIdomain Xgroup II catalytic intron
They have a conventional group II-type dVI with a bulged adenosine, a streamlined dI, no dII-dV, and a relaxed splice site consensus.

RNA splicing

splicingsplice sitespliced
In 1994, discovery of a group III intron with a length of one order of magnitude longer indicated that length alone is not the determinant of splicing in Group III introns.
There are three kinds of self-splicing introns, Group I, Group II and Group III.

Twintron

* Twintron
Since the original discovery, there have been other reports of Group III twintrons and GroupII/III twintrons in the chloroplast of Euglena gracilis.

Euglenid

euglenoidEuglenoideaEuglenophyceae
Group III intron is a class of introns found in mRNA genes of chloroplasts in euglenid protists.

Protist

ProtistaprotistsProtoctista
Group III intron is a class of introns found in mRNA genes of chloroplasts in euglenid protists.

Transesterification

methanolysistransesterifiedtrans-esterification
Splicing is done with two transesterification reactions with a dVI bulged adenosine as initiating nucleophile; the intron is excised as a lariat.

Nucleophile

nucleophilicnucleophilic attacknucleophilicity
Splicing is done with two transesterification reactions with a dVI bulged adenosine as initiating nucleophile; the intron is excised as a lariat.

Chloroplast

chloroplastschloroplast stromaplastoglobuli
In 1984, Montandon and Stutz reported examples of a novel type of introns in Euglena chloroplast.

Circular RNA

circRNA
Splicing of group III introns occurs through lariat and circular RNA formation.