نتایج جستجو برای: flap endonuclease 1

تعداد نتایج: 2775035  

Journal: :The EMBO journal 2003
Jay Z Parrish Chonglin Yang Binghui Shen Ding Xue

Oligonucleosomal fragmentation of chromosomes in dying cells is a hallmark of apoptosis. Little is known about how it is executed or what cellular components are involved. We show that crn-1, a Caenorhabditis elegans homologue of human flap endonuclease-1 (FEN-1) that is normally involved in DNA replication and repair, is also important for apoptosis. Reduction of crn-1 activity by RNA interfer...

Journal: :The Journal of biological chemistry 2009
Jason A Stewart Judith L Campbell Robert A Bambara

Okazaki fragments are initiated by short RNA/DNA primers, which are displaced into flap intermediates for processing. Flap endonuclease 1 (FEN1) and Dna2 are responsible for flap cleavage. Replication protein A (RPA)-bound flaps inhibit cleavage by FEN1 but stimulate Dna2, requiring that Dna2 cleaves prior to FEN1. Upon cleavage, Dna2 leaves a short flap, which is then cut by FEN1 forming a nic...

Journal: :The EMBO journal 2005
Shigeru Sakurai Ken Kitano Hiroto Yamaguchi Keisuke Hamada Kengo Okada Kotaro Fukuda Makiyo Uchida Eiko Ohtsuka Hiroshi Morioka Toshio Hakoshima

Flap endonuclease-1 (FEN1) is a key enzyme for maintaining genomic stability and replication. Proliferating cell nuclear antigen (PCNA) binds FEN1 and stimulates its endonuclease activity. The structural basis of the FEN1-PCNA interaction was revealed by the crystal structure of the complex between human FEN1 and PCNA. The main interface involves the C-terminal tail of FEN1, which forms two bet...

Journal: :Acta Crystallographica Section D Biological Crystallography 2012

2013
Liangyue Qian Fenghua Yuan Paola Rodriguez-Tello Suyog Padgaonkar Yanbin Zhang

In eukaryotic cells, Flap endonuclease 1 (FEN1) is a major structure-specific endonuclease that processes 5' flapped structures during maturation of lagging strand DNA synthesis, long patch base excision repair, and rescue of stalled replication forks. Here we report that fanconi anemia complementation group A protein (FANCA), a protein that recognizes 5' flap structures and is involved in DNA ...

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