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The core domain and CR4/CR5 conserved domain associate with TERT, and are the only domains of TERC necessary for in vitro catalytic activity of telomerase. [11] The 3’ end of TERC consists of a conserved H/ACA domain, [10] a 2 hairpin structure connected by a single-stranded hinge and bordered on the 3’ end by a single-stranded ACA sequence ...
Telomerase reverse transcriptase (abbreviated to TERT, or hTERT in humans) is a catalytic subunit of the enzyme telomerase, which, together with the telomerase RNA component (TERC), comprises the most important unit of the telomerase complex. [5] [6] Telomerases are part of a distinct subgroup of RNA-dependent polymerases.
The genes of telomerase subunits, which include TERT, [16] TERC, [17] DKC1 [18] and TEP1, [19] are located on different chromosomes. The human TERT gene (hTERT) is translated into a protein of 1132 amino acids. [20] TERT polypeptide folds with (and carries) TERC, a non-coding RNA (451 nucleotides long). TERT has a 'mitten' structure that allows ...
TERRA is an evolutionarily conserved long-non-coding RNA found in many nucleus-containing eukaryotic cells such as chicken (Gallus gallus domesticus), [1] humans (Homo sapiens), budding yeast (Schizosaccharomyces cerevisiae), fission yeast (Schizosaccharomyces pombe), mice (Mus musculus), zebrafish (Danio rerio), and various plants (Arabidopsis thaliana, et cetera).
There are different subtypes depending on the involvement of single- or double-stranded DNA, among other things. There is evidence for the 3'-overhang in ciliates (that possess telomere repeats similar to those found in vertebrates) to form such G-quadruplexes that accommodate it, rather than a T-loop. G-quadruplexes present an obstacle for ...
To identify these sequences, [1] yeast mutants unable to synthesize histidine were transformed with plasmids containing the His gene and random fragments of the yeast genome. If the genome fragment contained an origin of replication, cells were able to grow in a medium lacking histidine.
An image of multiple chromosomes, taken from many cells. Plant genetics is the study of genes, genetic variation, and heredity specifically in plants. [1] [2] It is generally considered a field of biology and botany, but intersects frequently with many other life sciences and is strongly linked with the study of information systems.
The terC RNA motif is a conserved RNA structure that was discovered by bioinformatics. [1] terC motif RNAs are found in Pseudomonadota, within the sub-lineages Alphaproteobacteria and Pseudomonadales. terC motif RNAs likely function as cis-regulatory elements, in view of their positions upstream of protein-coding genes.