Results 91 to 100 of about 144,851 (284)

Drug hypersensitivity caused by alteration of the MHC-presented self-peptide repertoire [PDF]

, 2012
Idiosyncratic adverse drug reactions are unpredictable, dose independent and potentially life threatening; this makes them a major factor contributing to the cost and uncertainty of drug development. Clinical data suggest that many such reactions involve
A. Lucas, A. M. English, A. Sette, A. Wriston, B. J. Grant, B. Peters, C. A. F. de Oliveira, C. Oseroff, Cahalan, Chessman, Chung, D. A. Ostrov, D. F. Hunt, Day, E. Phillips, Faletto, Friesner, H. M. Grey, H. Mei, Harndahl, J. Jakoncic, J. Shabanowitz, J. Sidney, Ko, L. Shi, L. Yang, Lavergne, M. Harndahl, Mallal, Martin, Melroy, Phillips, Pichler, Rudolph, S. Buus, S. Lu, S. Mallal, S. Southwood, Shastri, Shimizu, Sidney, Sidney, Tenzer, Udeshi, Y. A. Pompeu, Yang, Yang, Yewdell   +47 more
core   +4 more sources

A Cold Shock-Induced Cyanobacterial RNA Helicase [PDF]

Journal of Bacteriology, 1999
ABSTRACT The ability to modify RNA secondary structure is crucial for numerous cellular processes. We have characterized two RNA helicase genes, crhB and crhC , which are differentially expressed in the cyanobacterium Anabaena sp. strain PCC 7120.
Owttrim, George W., Magee, Wendy C., Yu, Esther, Chamot, Danuta   +3 more
openaire   +3 more sources

Promoter Hypermethylation‐Induced Silencing of FXYD1 Drives Breast Cancer Metastasis via DDX5‐Mediated Wnt/β‐Catenin Pathway Activation

Advanced Science, EarlyView.
This study identifies FXYD1 as an epigenetically silenced tumor suppressor in breast cancer. DNA methylation turns off the gene FXYD1 in breast cancer, and low levels predict worse outcomes. Restoring FXYD1 limits breast cancer cells proliferation and metastasis. In the nucleus, FXYD1 recruits the E3 ligase MAEA to K63‐ubiquitinate DDX5 for proteasomal
Ping Wen, Fanli Qu, Long Wang, Qing Shao, Sisi Li, Yang Qin, Dongping Jiang, Senmiao Zhang, Jiangdong Sui, Guanwen Wang, Ningning Zhang, Xiaohua Zeng   +11 more
wiley   +1 more source

Structure of frequency-interacting RNA helicase from Neurospora crassa reveals high flexibility in a domain critical for circadian rhythm and RNA surveillance. [PDF]

PLoS ONE, 2018
The FRH (frequency-interacting RNA helicase) protein is the Neurospora crassa homolog of yeast Mtr4, an essential RNA helicase that plays a central role in RNA metabolism as an activator of the nuclear RNA exosome. FRH is also a required component of the
Yalemi Morales, Keith J Olsen, Jacqueline M Bulcher, Sean J Johnson   +3 more
doaj   +1 more source

DNA Replication Errors Drive Genome‐Wide Small Inverted Triplication Dynamics

Advanced Science, EarlyView.
This study provides insight into the dynamic equilibrium mechanism of a novel structural variant, small inverted triplication (SIT), which is generated by misalignment of the 3’ flap generated under DNA replication stress with palindromic sequence. Alternatively, the end sequence may fold back on itself to form an inverted fragment.
Yi Lei, Yu Zhou, Haitao Sun, Hang Yuan, Xinyu Pei, Jessica D. Hess, Yao Yan, Zunsong Hu, Mian Zhou, Zhaohui Gu, Li Zheng, Xiwei Wu, Binghui Shen   +12 more
wiley   +1 more source

Diverged composition and regulation of the Trypanosoma brucei origin recognition complex that mediates DNA replication initiation [PDF]

, 2016
Initiation of DNA replication depends upon recognition of genomic sites, termed origins, by AAA+ ATPases. In prokaryotes a single factor binds each origin, whereas in eukaryotes this role is played by a six-protein origin recognition complex (ORC).
Damasceno, Jeziel D., Lemgruber Soares, Leandro, Marcello, Lucio, Marques, Catarina A., McCulloch, Richard, Paape, Daniel, Scott, Alan, Tiengwe, Calvin   +7 more
core   +3 more sources

Disruption of the SNRPF–DDX24–E2F4 Feedback Loop Uncouples Splicing and Transcriptional Regulation to Suppress Ovarian Cancer Progression

Advanced Science, EarlyView.
This study identifies SNRPF as a critical oncogenic driver in ovarian cancer. By regulating a self‐sustaining SNRPF–DDX24–E2F4 feedback loop through intron retention and nonsense‐mediated decay, SNRPF couples RNA splicing with transcriptional regulation to promote tumor progression.
Yingwei Li, Zhongshao Chen, Qianqian Gao, Yuehan Gao, Ning Yang   +4 more
wiley   +1 more source

Loss of The RNA Helicase SKIV2L2 Impairs Mitotic Progression and Replication-Dependent Histone mRNA Turnover in Murine Cell Lines [PDF]

, 2017
RNA surveillance via the nuclear exosome requires cofactors such as the helicase SKIV2L2 to process and degrade certain noncoding RNAs. This research aimed to characterize the phenotype associated with RNAi knockdown of Skiv2l2 in two murine cancer cell ...
Anderson, James T., Onderak, Alexis Marie   +1 more
core   +1 more source

Transcriptional changes in trichothiodystrophy cells [PDF]

, 2008
Mutations in three of the genes encoding the XPB, XPD and TTDA components of transcription factor TFIIH can result in the clinical phenotype of trichothiodystrophy (TTD).
Alan Lehmann, Bergmann, Boerma, Bootsma, Botta, Broughton, Coin, Coin, Compe, Compe, da Costa, de Boer, de Boer, Doniger, Drane, Drapkin, Dubaele, Giglia-Mari, Hohl, Hosack, Itin, Jacky Pallas, Judith Offman, Keriel, Koch-Paiz, Kraemer, Kraemer, Lee, Lehmann, Lehmann, Lehmann, Mike Hubank, Nakabayashi, Nipurna Jina, Park, Pemble, Ranish, Reardon, Schaeffer, Selzer, Sesto, Smyth, Storey, Taylor, Therina Theron, Viprakasit, Wu   +46 more
core   +2 more sources

G4‐Ligand‐Directed PROTACs Unveil DR1 as a Novel Ligand‐Co‐Binding G4‐Protein and Reshape G4‐Dependent Transcription

Advanced Science, EarlyView.
G4‐binding proteins (G4BPs) that specifically co‐bind G4s in the presence of small‐molecule ligands represent a critical but unexplored class of proteins. We introduce G4‐Ligand‐Directed PROTACs (G4L‐TACs), a chemical platform that couples G4 ligands (PDS) to E3 recruiters to selectively degrade these ligand‐co‐binding G4BPs.
Mao‐Lin Li, Shu‐Min Xu, Xin‐Chen Jiang, Le‐Tian Dai, Yu‐Tao Hu, Kai‐Bo Wang, Jia‐Heng Tan, Zhi‐Shu Huang, Shuo‐Bin Chen   +8 more
wiley   +1 more source