The cDNA library of Yuanjiang Oryza rifupongon leaf was constructed by using SMART technology. The titers of the non-amplified library and the amplified library were 1.1 x 106 pfu/mL and 3.98 x 107 pfu/mL, respectively. The recombination rate was more than 91%. The DNA sequence length of the most cDNAs in the library was between 500-2 000 bp. Some cDNAs chosen by random were sequenced. After BLAST analysis of some cDNAs, their possible function were predicted. It is found that these cDNAs show 98% similarity to Oryza sativa japonica in the NCBI database. These provided a base for further study on the structure and function of these cDNAs and evolutionary process of Yuanjiang Oryza rifupongon.
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http://dx.doi.org/10.3724/sp.j.1005.2008.00776 | DOI Listing |
Microb Cell Fact
January 2025
Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, Tianjin, 300308, China.
Background: Aspergillus niger is an important industrial filamentous fungus used to produce organic acids and enzymes. A wide dynamic range of promoters, particularly strong promoters, are required for fine-tuning the regulation of gene expression to balance metabolic flux and achieve the high yields of desired products. However, the limited understanding of promoter architectures and activities restricts the efficient transcription regulation of targets in strain engineering in A.
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January 2025
Department of Bioengineering and Therapeutic Sciences, University of California, San Francisco, San Francisco, CA, USA.
The human genome contains millions of candidate cis-regulatory elements (cCREs) with cell-type-specific activities that shape both health and many disease states. However, we lack a functional understanding of the sequence features that control the activity and cell-type-specific features of these cCREs. Here we used lentivirus-based massively parallel reporter assays (lentiMPRAs) to test the regulatory activity of more than 680,000 sequences, representing an extensive set of annotated cCREs among three cell types (HepG2, K562 and WTC11), and found that 41.
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January 2025
Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu, China.
Identifying phase-separated structures remains challenging, and effective intervention methods are currently lacking. Here we screened for phase-separated proteins in breast tumour cells and identified forkhead (FKH) box protein M1 (FOXM1) as the most prominent candidate. Oncogenic FOXM1 underwent liquid-liquid phase separation (LLPS) with FKH consensus DNA element, and compartmentalized the transcription apparatus in the nucleus, thereby sustaining chromatin accessibility and super-enhancer landscapes crucial for tumour metastatic outgrowth.
View Article and Find Full Text PDFArch Microbiol
January 2025
Clinical Microbiology and PK-PD Division, CSIR-Indian Institute of Integrative Medicine, Sanatnagar, Srinagar, J&K, 190005, India.
Tuberculosis (TB) remains a major global threat, with 10 million new cases and 1.5 million deaths each year. In multidrug-resistant tuberculosis (MDR-TB), resistance is most commonly observed against isoniazid (INH) and rifampicin (RIF), the two frontline drugs.
View Article and Find Full Text PDFPlant Cell Environ
January 2025
College of Horticulture, Hebei Agricultural University, Baoding, Hebei, China.
Jujube (Ziziphus ujuba Mill.) holds great importance as a fruit tree in China, with strong tolerance to drought and saline stress, but its growth is limited by vulnerability to cold stress. Consequently, the role of MAPK cascades in mediating jujube cold stress response remains unclear, with the specific function of ZjMAPKK4 in this context yet to be fully elucidated.
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