| Description | YES
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A group I intron is one of two types of self-splicing introns that differ in splicing mechanism and structural features. Group I introns rely on an exogenous guanosine cofactor that participates in a trasnsesterification reaction. For setting this property, no distinction is made between group I introns found in phage, in tRNA, or (as in Bacillus anthracis recA - see PMID:12081963) in a protein coding region. Both group I and group II introns may encode proteins related to intron functions such as splicing or mobilization. |