Results 101 to 110 of about 297,547 (335)

V_H replacement in rearranged immunoglobulin genes [PDF]

, 2005
Examples suggesting that all or part of the V_H segment of a rearranged V_HDJ_H may be replaced by all or part of another V_H have been appearing since the 1980s ...
Brokaw JL, Cascalho M, Choi Y, Chukwuocha RU, Covey LR, Cuomo CA, Deane M, Golub R, Han JO, Hesse JE, Kleinfield RW, Kobrin CB, Lewis SM, Ramsden DA, Rosenquist R, Shiokawa S, Sims GP, Steenbergen EJ, Steenbergen EJ, Taki S, Wasserman R, Wasserman R   +21 more
core   +2 more sources

H3K36me3‐Guided m6A Modification of Oncogenic L1CAM‐AS1 Drives Macrophage Polarization and Immunotherapy Resistance in Hepatocellular Carcinoma

Advanced Science, EarlyView.
L1CAM‐AS1 is identified as a novel H3K36me3‐guided, m6A‐modified long noncoding RNA (lncRNA) in hepatocellular carcinoma (HCC) cells. L1CAM‐AS1 stabilizes RAN protein, enhances M2 macrophages‐released CCL5‐induced nuclear import of RELA, activates the NF‐κB signaling, up‐regulates CCL2 expression and secretion from HCC cells, and enhances M2 ...
Teng Wang, Linyu Han, Yanfei Huo, Long Zhang, Yizhou Huang, Nasha Zhang, Ming Yang   +6 more
wiley   +1 more source

Protein phosphatase 4 promotes chromosome pairing and synapsis, and contributes to maintaining crossover competence with increasing age.

PLoS Genetics, 2014
Prior to the meiotic divisions, dynamic chromosome reorganizations including pairing, synapsis, and recombination of maternal and paternal chromosome pairs must occur in a highly regulated fashion during meiotic prophase.
Aya Sato-Carlton, Xuan Li, Oliver Crawley, Sarah Testori, Enrique Martinez-Perez, Asako Sugimoto, Peter M Carlton   +6 more
doaj   +1 more source

Telomeres cluster de novo before the initiation of synapsis: a three-dimensional spatial analysis of telomere positions before and during meiotic prophase. [PDF]

, 1997
We have analyzed the progressive changes in the spatial distribution of telomeres during meiosis using three-dimensional, high resolution fluorescence microscopy.
Agard, DA, Bass, HW, Cande, WZ, Marshall, WF, Sedat, JW   +4 more
core  

An Antagonism Between Ethylene Signaling and DNA Methylation Orchestrates the Progression of Leaf Senescence in Non‐heading Chinese Cabbage

Advanced Science, EarlyView.
CMT2 mediates the maintenance of DNA methylation on the promoters of SAGs, thereby inhibiting EIN3A untimely activating SAGs’ expression. Aging‐impelled striking upregulation of EIN3A strongly suppresses the expression of CMT2 to reduce the methylation level, which releases the activation of EIN3A on SAGs, thus initiating and accelerating the ...
Dingyu Zhang, Yong Luo, Han Wang, Xiaofeng Li, Liming Miao, Lu Gao, Haibo Hao, Xinman Wang, Benke Kuai, Hongfang Zhu, Guodong Ren   +10 more
wiley   +1 more source

An Allele of Glutamate Formiminotransferase Triggers 5‐Methyl‐Tetrahydrofolate‐to‐MeFox Conversion and Facilitates Folate Biofortification in Maize

Advanced Science, EarlyView.
This work demonstrates the distinct roles of the glutamate formiminotransferase (GFT) enzyme in plants. The GFT triggers the conversion of 5‐methyl‐tetrahydrofolate to MeFox in plants, a process distinct from its role as a formiminotransferase in mammals.
Tong Lian, Wenzhu Guo, Yanjing Wang, Weiwei Wen, Weixuan Wang, Ling Jiang, Qiuju Liang, Ji'an Liu, Haijun Liu, Yuan Xue, Lixu Pan, Qiaoquan Liu, Ping Yin, Delin Zhang, Jianbing Yan, Chunyi Zhang   +15 more
wiley   +1 more source

Integration of DNA into bacterial chromosomes from plasmids without a counter-selection marker. [PDF]

, 2011
Most bacteria can only be transformed with circular plasmids, so robust DNA integration methods for these rely upon selection of single-crossover clones followed by counter-selection of double-crossover clones.
Cartman, ST, Cooksley, CM, Ehsaan, M, Heap, JT, Minton, NP, Ng, YK, Winzer, K   +6 more
core   +5 more sources

A New Model for Homologous Chromosome Pairing [PDF]

Caryologia, 1974
SUMMARYIt is proposed that chromosome pairing may result from the fortuitous juxtaposition of homologues by the congressive adjustments of chromosome positions during mitotic metaphase alignment. (Some unknown mechanism for stirring of chromosomes may exist in organisms with zygotic meiosis).
openaire   +2 more sources

Natural Allelic Variations in IbCHYR1–IbZnFR Complex Regulate Fusarium Root Rot Resistance in Sweet Potato

Advanced Science, EarlyView.
FfRlpA2, a conserved Fusarium effector, functions as a protease inhibitor by hijacking the E3 ubiquitin ligase IbCHYR1 to degrade the resistance factor IbZnFR, thereby promoting Fusarium pathogenicity. Conversely, the high dosage Pro::IbZnFRHap2 allele was associated with resistance to root rot disease.
Huan Zhang, Zhuoru Dai, Xiaochen Zhang, Meiqi Shang, Xiaoru Gao, Ruiqi Ma, Limeng Zhao, Xiaoli Zhang, Qingchang Liu, Hong Zhai, Shaopei Gao, Ning Zhao, Qinghe Cao, Qiang Li, Shaozhen He   +14 more
wiley   +1 more source

Phosphorylation‐Dependent Stabilization of Collaborator of ARF (CARF) Suppresses Lymphoma Cell Proliferation

Advanced Science, EarlyView.
This study revealed that oncogene Collaborator of ARF (CARF) is closely related to B‐cell lymphoma tumorigenesis, and shares a conserved mechanism regulating protein stability with Arabidopsis Kip‐Related Protein6 (KRP6) through casein kinase 1‐mediated phosphorylation. Reduced phosphorylation led to the enhanced protein stability of CARF, resulting in
Li Qu, Zhuang Wei, Shuting Zhou, Xiaofan Zhang, Wenjun Zhang, Aibin Liang, Zhe Wang, Hongwei Xue   +7 more
wiley   +1 more source