fanconi anemia/protease

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Fanconi anemia C protein acts at a switch between apoptosis and necrosis in mitomycin C-induced cell death.

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Deregulation of apoptosis seems to be a hallmark of the Fanconi anemia (FA) syndrome. In order to further define the role of the FA protein from complementation group C (FAC) in apoptosis, we characterized parameters modified during the mitomycin-C (MMC)-induced apoptotic program. It is shown that

Interferon-gamma-induced apoptotic responses of Fanconi anemia group C hematopoietic progenitor cells involve caspase 8-dependent activation of caspase 3 family members.

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Hematopoietic progenitor cells (HPC) from mice nullizygous at the Fanconi anemia (FA) group C locus and children with Fanconi anemia group C (FA-C) are hypersensitive to interferon-gamma (IFN-gamma) and tumor necrosis factor-alpha. This hypersensitivity results, in part, from the capacity of these

Knockdown of mu-calpain in Fanconi anemia, FA-A, cells by siRNA restores alphaII spectrin levels and corrects chromosomal instability and defective DNA interstrand cross-link repair.

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We have previously shown that there is a deficiency in the structural protein, nonerythroid alpha spectrin (alphaIISp), in cells from patients with Fanconi anemia (FA). These studies indicate that this deficiency is due to the reduced stability of alphaIISp and correlates with a decreased level of

Fanconi anemia proteins counteract the implementation of the oncogene-induced senescence program.

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Fanconi Anemia (FA), due to the loss-of-function of the proteins that constitute the FANC pathway involved in DNA replication and genetic stability maintainance, is a rare genetic disease featuring bone marrow failure, developmental abnormalities and cancer predisposition. Similar clinical stigmas

Inactivation of murine Usp1 results in genomic instability and a Fanconi anemia phenotype.

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Fanconi anemia (FA) is a human genetic disease characterized by chromosome instability, cancer predisposition, and cellular hypersensitivity to DNA crosslinking agents. The FA pathway regulates the repair of DNA crosslinks. A critical step in this pathway is the monoubiquitination and

Defective mitochondrial peroxiredoxin-3 results in sensitivity to oxidative stress in Fanconi anemia.

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Cells from patients with Fanconi anemia (FA), an inherited disorder that includes bone marrow failure and cancer predisposition, have increased sensitivity to oxidative stress through an unknown mechanism. We demonstrate that the FA group G (FANCG) protein is found in mitochondria. Wild-type but not

Ubiquitin-SUMO circuitry controls activated fanconi anemia ID complex dosage in response to DNA damage.

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We show that central components of the Fanconi anemia (FA) DNA repair pathway, the tumor suppressor proteins FANCI and FANCD2 (the ID complex), are SUMOylated in response to replication fork stalling. The ID complex is SUMOylated in a manner that depends on the ATR kinase, the FA ubiquitin ligase

Insights into phosphorylation-dependent mechanisms regulating USP1 protein stability during the cell cycle.

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Tight regulation of the cell cycle and DNA repair machinery is essential for maintaining genome stability. The APC/CCdh1 ubiquitin ligase complex is a key regulator of protein stability during the G 1 phase of the cell cycle. APC/CCdh1 regulates and promotes the degradation of proteins involved in

Nuclear alpha spectrin: Critical roles in DNA interstrand cross-link repair and genomic stability.

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Non-erythroid alpha spectrin (αIISp) is a structural protein which we have shown is present in the nucleus of human cells. It interacts with a number of nuclear proteins such as actin, lamin, emerin, chromatin remodeling factors, and DNA repair proteins. αIISp's interaction with DNA repair proteins

Nuclear α Spectrin Differentially Affects Monoubiquitinated Versus Non-Ubiquitinated FANCD2 Function After DNA Interstrand Cross-Link Damage.

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Nonerythroid α spectrin (αIISp) and the Fanconi anemia (FA) protein, FANCD2, play critical roles in DNA interstrand cross-link (ICL) repair during S phase. Both are needed for recruitment of repair proteins, such as XPF, to sites of damage and repair of ICLs. However, the relationship between them

Genetic investigation of formaldehyde-induced DNA damage response in Schizosaccharomyces pombe.

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Formaldehyde is a common environmental pollutant and is associated with adverse health effects. Formaldehyde is also considered to be a carcinogen because it can form DNA adducts, leading to genomic instability. How these adducts are prevented and removed is not fully understood. In this study, we

Specificity for deubiquitination of monoubiquitinated FANCD2 is driven by the N-terminus of USP1.

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The Fanconi anemia pathway for DNA interstrand crosslink repair and the translesion synthesis pathway for DNA damage tolerance both require cycles of monoubiquitination and deubiquitination. The ubiquitin-specific protease-1 (USP1), in complex with USP1-associated factor 1, regulates multiple DNA

Formation and repair of DNA-protein crosslink damage.

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DNA is constantly exposed to a wide array of genotoxic agents, generating a variety of forms of DNA damage. DNA-protein crosslinks (DPCs)-the covalent linkage of proteins with a DNA strand-are one of the most deleterious and understudied forms of DNA damage, posing as steric blockades to

The WD40-repeat protein-containing deubiquitinase complex: catalysis, regulation, and potential for therapeutic intervention.

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Ubiquitination has emerged as an essential signaling mechanism in eukaryotes. Deubiquitinases (DUBs) counteract the activities of the ubiquitination machinery and provide another level of control in cellular ubiquitination. Not surprisingly, DUBs are subjected to stringent regulations. Besides

DNA- and DNA-Protein-Crosslink Repair in Plants.

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DNA-crosslinks are one of the most severe types of DNA lesions. Crosslinks (CLs) can be subdivided into DNA-intrastrand CLs, DNA-interstrand CLs (ICLs) and DNA-protein crosslinks (DPCs), and arise by various exogenous and endogenous sources. If left unrepaired before the cell enters S-phase, ICLs

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