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Rat (Rattus) Topoisomerase I ELISA Kit for Sandwich ELISA - ABIN432643
Xu, Chen, Wang, Xu, Yuan, Li, Bai, Xue: Inhibitory effects of lapachol on rat C6 glioma in vitro and in vivo by targeting DNA topoisomerase I and topoisomerase II. in Journal of experimental & clinical cancer research : CR 2016
B52 delivers Topo I to RNA polymerase II-active chromatin loci and DNA topology and mRNA release can be coordinated to control gene expression.
In a model of human epilepsy, topo I shows a novel function in construction and/or maintenance of circuits required for seizure propagation in vivo.
In the floral meristem, the binding of AG to WUS is reduced in top1a-2, which results in reduced H3K27me3 levels at WUS and prolonged WUS expression, and consequently loss of floral determinacy.
Further studies with Arabidopsis top1alpha mutants showed that TOP1alpha silences endogenous RdDM loci by facilitating the production of Pol V-dependent long non-coding RNAs, AGONAUTE4 recruitment and H3K9me2 deposition at TEs (show TES ELISA Kits) and repeats
MGO1 encodes a putative Arabidopsis type IB topoisomerase that functions together with WUS in stem cell regulation. [MGO1]
While TOP-1alpha isoform has tissue specificity, the TOP-1beta isoform is expressed in most tissues and cells. RNAi targeted to both TOP-1 isoforms demonstrated that TOP-1 is required for chromosomal segregation, germline proliferation and gonadal migration.
two regions of topoisomerase I, the N-terminal and the linker domains, were critical for subnuclear localization of the enzyme. The linker domain and the distal region of the N-terminal domain directed topoisomerase I to the nucleolus, whereas the remaining region of the N-terminal domain was responsible for the nucleoplasmic localization.
High TOP1 expression is associated with Colorectal Cancers.
HMGA2 potentiates the clinically important topoisomerase I inhibitor irinotecan/SN-38 in trapping the enzyme in covalent DNA-complexes, thereby attenuating transcription.
IMMP2L (show IMMP2L ELISA Kits) transcription requires Topoisomerase I in human primary astrocytes
This work identifies ADP-ribose polymers as key determinant for regulating Top1 subnuclear dynamics.
High prevalence of anti-topoisomerase I antibody positivity was found among Thai systemic sclerosis patients and this was associated with a high frequency of hand deformity, ACA negativity, a short duration of pulmonary fibrosis in diffuse cutaneous and a lower frequency of Raynaud's phenomenon in limited cutaneous subsets.
These findings reveal BAZ1B as a key facilitator of topoisomerase I function during DNA replication that affects the response of cancer cells to topoisomerase I inhibitors.
Results identified TOP1 gene copy gain, a loss of chromosome 20, and new yet unreported TOP1 mutations (R364K and G717R) in close proximity to the SN-38 binding site conferring colon cancer cells resistance to the drug.
the highest expression of GGH (show GGH ELISA Kits) and EGFR (show EGFR ELISA Kits) was noted in the left-sided colon; the highest expression of DHFR (show DHFR ELISA Kits), FPGS (show FPGS ELISA Kits), TOP1 and ERCC1 (show ERCC1 ELISA Kits) was noted in the rectosigmoid, whereas TYMP (show TYMP ELISA Kits) expression was approximately equivalent in the right-sided colon and rectum
We found that the resistant cell lines showed 7-100 fold increased resistance to SN-38 but remained sensitive to docetaxel and the non-camptothecin Top1 inhibitor LMP400
treatment of topotecan, a brain-penetrating topoisomerase 1 inhibitor, to HD transgenic mouse considerably improved its motor behavioural abnormalities. Finally, we show that topotecan treatment to HD mouse not only inhibits the expression of transgenic mutant huntingtin (show HTT ELISA Kits), but also at the same time induces the expression of Ube3a (show ube3a ELISA Kits)
It has been shown that the livers of Sprtn deficient mice accumulate DNA-protein crosslinks containing Topoisomerase 1 covalently linked to DNA.
this study identified topoisomerase 1 as a cardinal (show CARD8 ELISA Kits) Aire (show AIRE ELISA Kits) partner that colocalized on super-enhancers and was required for the interaction of Aire (show AIRE ELISA Kits) with all of its other associates
Data indicate that mitochondrial topoisomerase I (TOP1mt (show TOP1MT ELISA Kits)) knockout (KO) mice showed a marked reduction in regeneration and hepatocyte proliferation.
Topoisomerase I deficiency in B cells is associated with RNA polymerase II accumulation, recruitment of activation-induced deaminase (show AICDA ELISA Kits) (AID) to immunoglobulin variable genes and the mechanism for increased diversity of these genes.
Findings suggest that topoisomerase 1 (TOP1) controls the levels of multiple synaptic proteins and is required for normal excitatory and inhibitory synaptic transmission.
Top1mt (show TOP1MT ELISA Kits) accumulates in the regulatory region of mitochondrial DNA.
our data implicate Top1mt (show TOP1MT ELISA Kits) for mitochondrial integrity and energy metabolism.
model in which small molecule inhibitors convert PARP1 (show PARP1 ELISA Kits) into a protein that potentiates the effects of topoisomerase I poisons by binding to damaged DNA and preventing its normal repair.
AID-induced Top1 reduction alters S region DNA structure probably to non-B form, on which Top1 can introduce nicks but cannot religate, resulting in S region cleavage.
This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This enzyme catalyzes the transient breaking and rejoining of a single strand of DNA which allows the strands to pass through one another, thus altering the topology of DNA. This gene is localized to chromosome 20 and has pseudogenes which reside on chromosomes 1 and 22.
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, type I DNA topoisomerase