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A proposed superfamily of transposase genes: transposon-like elements in ciliated protozoa and a common "D35E" motif.
The transposon-like elements TBE1, Tec1, and Tec2 of hypotrichous ciliated protozoa appear to encode a protein that belongs to the IS630-Tc1 family of transposases. The Anabaena IS895 transposaseExpand
Developmental precise excision of Oxytricha trifallax telomere‐bearing elements and formation of circles closed by a copy of the flanking target duplication.
The 4.1 kbp TBE1 elements of Oxytricha fallax and Oxytricha trifallax are deduced to transpose into a centrisymmetric target, CAnTG, and to duplicate the central AnT. Despite conserved C(A4C4)2Expand
Consensus inverted terminal repeat sequence of Paramecium IESs: resemblance to termini of Tc1-related and Euplotes Tec transposons.
During the formation of a transcriptionally active macronucleus, ciliated protozoa excise large numbers of interstitial segments of DNA (internal eliminated sequences; IESs) from their chromosomes.Expand
The Oxytricha trifallax Macronuclear Genome: A Complex Eukaryotic Genome with 16,000 Tiny Chromosomes
With more chromosomes than any other sequenced genome, the macronuclear genome of Oxytricha trifallax has a unique and complex architecture, including alternative fragmentation and predominantlyExpand
Developmental genome reorganization in ciliated protozoa: the transposon link.
Imprinting and paternal genome elimination in insects.
In many insects and other arthropods, males transmit only maternally inherited chromosomes (White 1973; Brown and Chandra 1977; Nur 1980, 1990a,b,c; Bell 1982; Bull 1983; Lyon and Rastan 1984; LyonExpand
Alternative processing during development of a macronuclear chromosome family in Oxytricha fallax.
Macronuclear chromosomes in Oxytricha fallax, a hypotrichous ciliate, are very short. They often belong to small families of cross-hybridizing chromosomes of two or three different sizes. ForExpand
Programmed nuclear death: apoptotic-like degradation of specific nuclei in conjugating Tetrahymena.
During conjugation in the ciliated protozoan Tetrahymena, new macronuclei differentiate from germinal zygotic micronuclei while parental (old) macronuclei are eliminated in two stages, condensationExpand
Selection on the protein-coding genes of the TBE1 family of transposable elements in the ciliates Oxytricha fallax and O. trifallax.
TBE1s are "cut-and-paste" transposable elements found in high copy number in the germline genomes of the ciliates Oxytricha fallax and O. trifallax. TBE1 "family" sequence (sequence of mixedExpand
Two two-gene macronuclear chromosomes of the hypotrichous ciliates Oxytricha fallax and O. trifallax generated by alternative processing of the 81 locus.
We describe the first know macronuclear chromosomes that carry more than one gene in hypotrichous ciliated protozoa. These 4.9- and 2.8-kbp chromosomes each consist almost exclusively of twoExpand
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