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  • 1
    ISSN: 1588-2780
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The contents of Se, Fe, Co, Zn and Rb in several organs of Swiss mice were determined by instrumental neutron activation analysis (INAA) after injections with seleno-methionine (Se-Met) and glutathione (GSH). Se was accumulated in all examined organs and significant effects of the treatment with GSH on the distribution of Se were observed. An increase of Zn (or Se) content in blood after injection with Se-Met (or Zn2+ ions) was observed.
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  • 2
    ISSN: 1546-1718
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] An anonymous cDNA fragment encoding a TRF1-related Myb motif was reported in the database8. This sequence information was used in a combination of polymerase chain reaction (PCR) and hybridization strategies to isolate the full-length human and mouse cDNAs representing this protein (called TRF2, ...
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  • 3
    ISSN: 1546-170X
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Medicine
    Notes: [Auszug] Adenosine deaminase-deficient severe combined immunodeficiency was the first disease investigated for gene therapy because of a postulated production or survival advantage for genecorrected T lymphocytes, which may overcome inefficient gene transfer. Four years after three newborns with this ...
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  • 4
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biochemistry 73 (2004), S. 177-208 
    ISSN: 0066-4154
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Biology
    Notes: Telomeres are essential for genome stability in all eukaryotes. Changes in telomere functions and the associated chromosomal abnormalities have been implicated in human aging and cancer. Telomeres are composed of repetitive sequences that can be maintained by telomerase, a complex containing a reverse transcriptase (hTERT in humans and Est2 in budding yeast), a template RNA (hTERC in humans and Tlc1 in yeast), and accessory factors (the Est1 proteins and dyskerin in humans and Est1, Est3, and Sm proteins in budding yeast). Telomerase is regulated in cis by proteins that bind to telomeric DNA. This regulation can take place at the telomere terminus, involving single-stranded DNA-binding proteins (POT1 in humans and Cdc13 in budding yeast), which have been proposed to contribute to the recruitment of telomerase and may also regulate the extent or frequency of elongation. In addition, proteins that bind along the length of the telomere (TRF1/TIN2/tankyrase in humans and Rap1/Rif1/Rif2 in budding yeast) are part of a negative feedback loop that regulates telomere length. Here we discuss the details of telomerase and its regulation by the telomere.
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  • 5
    Electronic Resource
    Electronic Resource
    Palo Alto, Calif. : Annual Reviews
    Annual Review of Biochemistry 73 (2004), S. 177-208 
    ISSN: 0066-4154
    Source: Annual Reviews Electronic Back Volume Collection 1932-2001ff
    Topics: Chemistry and Pharmacology , Biology
    Notes: Telomeres are essential for genome stability in all eukaryotes. Changes in telomere functions and the associated chromosomal abnormalities have been implicated in human aging and cancer. Telomeres are composed of repetitive sequences that can be maintained by telomerase, a complex containing a reverse transcriptase (hTERT in humans and Est2 in budding yeast), a template RNA (hTERC in humans and Tlc1 in yeast), and accessory factors (the Est1 proteins and dyskerin in humans and Est1, Est3, and Sm proteins in budding yeast). Telomerase is regulated in cis by proteins that bind to telomeric DNA. This regulation can take place at the telomere terminus, involving single-stranded DNA-binding proteins (POT1 in humans and Cdc13 in budding yeast), which have been proposed to contribute to the recruitment of telomerase and may also regulate the extent or frequency of elongation. In addition, proteins that bind along the length of the telomere (TRF1/TIN2/tankyrase in humans and Rap1/Rif1/Rif2 in budding yeast) are part of a negative feedback loop that regulates telomere length. Here we discuss the details of telomerase and its regulation by the telomere.
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  • 6
    Publication Date: 2002-03-30
    Description: Primary human cells in culture invariably stop dividing and enter a state of growth arrest called replicative senescence. This transition is induced by programmed telomere shortening, but the underlying mechanisms are unclear. Here, we report that overexpression of TRF2, a telomeric DNA binding protein, increased the rate of telomere shortening in primary cells without accelerating senescence. TRF2 reduced the senescence setpoint, defined as telomere length at senescence, from 7 to 4 kilobases. TRF2 protected critically short telomeres from fusion and repressed chromosome-end fusions in presenescent cultures, which explains the ability of TRF2 to delay senescence. Thus, replicative senescence is induced by a change in the protected status of shortened telomeres rather than by a complete loss of telomeric DNA.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Karlseder, Jan -- Smogorzewska, Agata -- de Lange, Titia -- AG16643/AG/NIA NIH HHS/ -- CA76027/CA/NCI NIH HHS/ -- New York, N.Y. -- Science. 2002 Mar 29;295(5564):2446-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory for Cell Biology and Genetics, The Rockefeller University, 1230 York Avenue, New York, NY 10021, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11923537" target="_blank"〉PubMed〈/a〉
    Keywords: Antigens, Polyomavirus Transforming/genetics/metabolism ; *Cell Aging ; *Cell Division ; Cell Line ; Cells, Cultured ; DNA/*metabolism ; DNA-Binding Proteins/genetics/*metabolism ; Humans ; Oncogene Proteins, Viral/genetics/metabolism ; Papillomavirus E7 Proteins ; *Repressor Proteins ; Retinoblastoma Protein/metabolism ; Retroviridae/genetics ; Telomere/metabolism/*physiology ; Telomeric Repeat Binding Protein 2 ; Transformation, Genetic ; Tumor Suppressor Protein p53/metabolism
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 7
    Publication Date: 2007-05-26
    Description: Cellular responses to DNA damage are mediated by a number of protein kinases, including ATM (ataxia telangiectasia mutated) and ATR (ATM and Rad3-related). The outlines of the signal transduction portion of this pathway are known, but little is known about the physiological scope of the DNA damage response (DDR). We performed a large-scale proteomic analysis of proteins phosphorylated in response to DNA damage on consensus sites recognized by ATM and ATR and identified more than 900 regulated phosphorylation sites encompassing over 700 proteins. Functional analysis of a subset of this data set indicated that this list is highly enriched for proteins involved in the DDR. This set of proteins is highly interconnected, and we identified a large number of protein modules and networks not previously linked to the DDR. This database paints a much broader landscape for the DDR than was previously appreciated and opens new avenues of investigation into the responses to DNA damage in mammals.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Matsuoka, Shuhei -- Ballif, Bryan A -- Smogorzewska, Agata -- McDonald, E Robert 3rd -- Hurov, Kristen E -- Luo, Ji -- Bakalarski, Corey E -- Zhao, Zhenming -- Solimini, Nicole -- Lerenthal, Yaniv -- Shiloh, Yosef -- Gygi, Steven P -- Elledge, Stephen J -- 1U19A1067751/PHS HHS/ -- New York, N.Y. -- Science. 2007 May 25;316(5828):1160-6.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics and Center for Genetics and Genomics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17525332" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Ataxia Telangiectasia Mutated Proteins ; Binding Sites ; Cell Cycle/physiology ; Cell Cycle Proteins/*physiology ; Cell Line ; Computational Biology ; Consensus Sequence ; *DNA Damage ; *DNA Repair ; DNA Replication/physiology ; DNA-Binding Proteins/*physiology ; Humans ; Immunoprecipitation ; Isotope Labeling ; Mice ; NIH 3T3 Cells ; Phosphorylation ; Protein-Serine-Threonine Kinases/*physiology ; Proteome/isolation & purification/physiology ; RNA, Small Interfering ; Signal Transduction ; Substrate Specificity ; Tumor Suppressor Proteins/*physiology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 8
    Publication Date: 2009-12-08
    Description: Fanconi anemia is a human cancer predisposition syndrome caused by mutations in 13 Fanc genes. The disorder is characterized by genomic instability and cellular hypersensitivity to chemicals that generate DNA interstrand cross-links (ICLs). A central event in the activation of the Fanconi anemia pathway is the mono-ubiquitylation of the FANCI-FANCD2 complex, but how this complex confers ICL resistance remains enigmatic. Using a cell-free system, we showed that FANCI-FANCD2 is required for replication-coupled ICL repair in S phase. Removal of FANCD2 from extracts inhibits both nucleolytic incisions near the ICL and translesion DNA synthesis past the lesion. Reversal of these defects requires ubiquitylated FANCI-FANCD2. Our results show that multiple steps of the essential S-phase ICL repair mechanism fail when the Fanconi anemia pathway is compromised.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2909596/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2909596/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Knipscheer, Puck -- Raschle, Markus -- Smogorzewska, Agata -- Enoiu, Milica -- Ho, The Vinh -- Scharer, Orlando D -- Elledge, Stephen J -- Walter, Johannes C -- GM62267/GM/NIGMS NIH HHS/ -- R01 GM062267/GM/NIGMS NIH HHS/ -- R01 GM062267-09/GM/NIGMS NIH HHS/ -- R37 GM044664/GM/NIGMS NIH HHS/ -- R37 GM044664-23/GM/NIGMS NIH HHS/ -- T32CA09216/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2009 Dec 18;326(5960):1698-701. doi: 10.1126/science.1182372. Epub 2009 Nov 12.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Chemistry and Molecular Pharmacology, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/19965384" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Cell-Free System ; Chromatin/metabolism ; DNA/biosynthesis ; DNA Damage ; *DNA Repair ; *DNA Replication ; Fanconi Anemia/genetics/metabolism ; Fanconi Anemia Complementation Group D2 Protein/*metabolism ; Fanconi Anemia Complementation Group Proteins/*metabolism ; Molecular Sequence Data ; Recombinant Proteins/metabolism ; S Phase ; Signal Transduction ; Ubiquitinated Proteins/metabolism ; Ubiquitination ; Xenopus Proteins/*metabolism ; Xenopus laevis
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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  • 9
    Publication Date: 2014-11-29
    Description: DNA interstrand cross-links (ICLs) are highly toxic lesions associated with cancer and degenerative diseases. ICLs can be repaired by the Fanconi anemia (FA) pathway and through FA-independent processes involving the FAN1 nuclease. In this work, FAN1-DNA crystal structures and biochemical data reveal that human FAN1 cleaves DNA successively at every third nucleotide. In vitro, this exonuclease mechanism allows FAN1 to excise an ICL from one strand through flanking incisions. DNA access requires a 5'-terminal phosphate anchor at a nick or a 1- or 2-nucleotide flap and is augmented by a 3' flap, suggesting that FAN1 action is coupled to DNA synthesis or recombination. FAN1's mechanism of ICL excision is well suited for processing other localized DNA adducts as well.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4285437/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4285437/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Renjing -- Persky, Nicole S -- Yoo, Barney -- Ouerfelli, Ouathek -- Smogorzewska, Agata -- Elledge, Stephen J -- Pavletich, Nikola P -- P30 CA008748/CA/NCI NIH HHS/ -- R01 HL120922/HL/NHLBI NIH HHS/ -- R01HL120922/HL/NHLBI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2014 Nov 28;346(6213):1127-30. doi: 10.1126/science.1258973.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Structural Biology Program and Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. ; Molecular Pharmacology and Chemistry Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. ; Laboratory of Genome Maintenance, The Rockefeller University, New York, NY 10065, USA. ; Department of Genetics and Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA. Division of Genetics, Brigham and Women's Hospital, Boston, MA 02115, USA. ; Structural Biology Program and Howard Hughes Medical Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA. pavletin@mskcc.org.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/25430771" target="_blank"〉PubMed〈/a〉
    Keywords: DNA/biosynthesis/*chemistry/genetics ; DNA Adducts/*chemistry/genetics ; *DNA Repair ; DNA Replication ; Exodeoxyribonucleases/*chemistry/genetics ; Humans ; Nucleic Acid Conformation ; Protein Conformation ; Recombination, Genetic
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
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  • 10
    Publication Date: 2007-05-26
    Description: The BRCT repeats of the breast and ovarian cancer predisposition protein BRCA1 are essential for tumor suppression. Phosphopeptide affinity proteomic analysis identified a protein, Abraxas, that directly binds the BRCA1 BRCT repeats through a phospho-Ser-X-X-Phe motif. Abraxas binds BRCA1 to the mutual exclusion of BACH1 (BRCA1-associated C-terminal helicase) and CtIP (CtBP-interacting protein), forming a third type of BRCA1 complex. Abraxas recruits the ubiquitin-interacting motif (UIM)-containing protein RAP80 to BRCA1. Both Abraxas and RAP80 were required for DNA damage resistance, G(2)-M checkpoint control, and DNA repair. RAP80 was required for optimal accumulation of BRCA1 on damaged DNA (foci) in response to ionizing radiation, and the UIM domains alone were capable of foci formation. The RAP80-Abraxas complex may help recruit BRCA1 to DNA damage sites in part through recognition of ubiquitinated proteins.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3573690/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3573690/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, Bin -- Matsuoka, Shuhei -- Ballif, Bryan A -- Zhang, Dong -- Smogorzewska, Agata -- Gygi, Steven P -- Elledge, Stephen J -- 1KO1, CA116275-01/CA/NCI NIH HHS/ -- 1U19A1067751/PHS HHS/ -- T32CA09216/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- New York, N.Y. -- Science. 2007 May 25;316(5828):1194-8.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Center for Genetics and Genomics, Brigham and Women's Hospital, Howard Hughes Medical Institute, Harvard Medical School, Boston, MA 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/17525340" target="_blank"〉PubMed〈/a〉
    Keywords: Amino Acid Sequence ; BRCA1 Protein/*physiology ; Carrier Proteins/*physiology ; Cell Line, Tumor ; *DNA Damage ; *DNA Repair ; HeLa Cells ; Humans ; Mass Spectrometry ; Molecular Sequence Data ; Nuclear Proteins/*physiology ; Protein Binding ; Protein Structure, Tertiary
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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