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Identifiers and Description
Gene Model Identifier
ASI2 (Anlagen Stage Induced )
PreTt08799 | 15.m00510 | 3697.m00221
Similar to anlagen stage induced protein 1 (ASI1); protein of unknown function; gene is located adjacent to the ASI1 gene
ASI2 is a gene regulating endocycling in Tetrahymena thermophila. Though nonessential for vegative growth, it is upregulated after meiosis and is involved in the creation of a new MAC. Introduced via transduction with ASI2-GFP plasmid to establish parental cells that showed transcription of ASI2 occurs both in MAC and parental cells at conjugation.
Regulation & Expression:
The Tetrahymena gene ASI1 (anlagen stage induced 1) was isolated from a cDNA library of genes that are up-regulated during development of the macronuclear anlagen. As its name implies, the abundance of ASI2 mRNA peaks at 9 h of mating, early in macronuclear anlagen development.
Ref:20656911: Yin L, Gater ST, Karrer KM (2010) A developmentally regulated gene, ASI2, is required for endocycling in the macronuclear anlagen of Tetrahymena. Eukaryotic cell 9(9):1343-53
Ref:16712831: Li S, Yin L, Cole ES, Udani RA, Karrer KM (2006) Progeny of germ line knockouts of ASI2, a gene encoding a putative signal transduction receptor in Tetrahymena thermophila, fail to make the transition from sexual reproduction to vegetative growth. Developmental biology 295(2):633-46
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