2023年7月17日 · Recombination events are very common and represent one of the primary drivers of RNA virus evolution. The XBF SARS-CoV-2 lineage is one of the most recently generated recombinants during the COVID-19 pandemic. It is a recombinant of BA.5.2.3 and BA.2.75.3, both descendants of lineages that caused …

2019年4月21日 · 数据库输入数据显示\xCA\xFD\xBE\xDD\xBF\xE2 是因为该数据以十六进制的形式进行存储和显示。 这种表示方法常用于处理二进制 数据 或特殊 字符 ，如Unicode 字符 。

2023年8月26日 · Immune escape of BA.2.75, BQ, XBB and XBF variants was also evident in bivalently boosted individuals, however, cross-neutralization was improved for those with hybrid immunity. Our results...

2023年3月28日 · As of March 2023, XBB.1.5, a recombinant sublineage of XBB, is currently the dominant form globally (Fig. S1A, Supplementary Appendix). XBB emerged as a result of recombination between two BA.2 descendants, BJ.1 and BM.1.1.1 (a progeny of BA.2.75).

1998年12月15日 · We show that XBF-2 acts as a transcriptional repressor and that its effects can be phenocopied with either the engrailed or hairy repressor domain fused to the XBF-2 DNA-binding domain. A fusion of the DNA-binding domain to the activator domain of VP16 blocks the effects of XBF-2 and prevents neural plate development in the embryo.

We have identified Xenopus Brain Factor 2 (XBF-2) as a potent neuralizing activity in an expression cloning screen. In ectodermal explants, XBF-2 converts cells from an epidermal to a neural fate. Such explants contain neurons with distinct axonal profiles and express both anterior and posterior cen …

2010年4月9日 · HECT ligases directly catalyse protein ubiquitination and have been found to non-covalently interact with ubiquitin. We report crystal structures of the Nedd4 HECT domain, alone and in complex with ubiquitin, which show a new binding mode involving two surfaces on ubiquitin and both subdomains of the HECT N-lobe.

2023年11月20日 · Identified in September 2022, the XBB lineage originated from a recombination of two BA.2-derived variants (BJ.1 and BM.1.1.1) and progressively replaced most of previous Omicron strains. Members of this lineage are characterized by enhanced transmissibility rates and immune evasion properties 7, 8.

مصطفى رحيم‎ (@2xbf) • Instagram photos and videos. 1,857 Followers, 296 Following, 9 Posts - ‎مصطفى رحيم (@2xbf)‎ on Instagram: "‎Moved @2xbf مصطفى || Mustafa -الـعَراق | ميـسـان🇮🇶. - كُنت الجزء السعيد لأيَامي دائمًا. You were always the happy part of my days. ₂₀₀₇‎"

We have identified Xenopus Brain Factor 2 (XBF-2) as a potent neuralizing activity in an expression cloning screen. In ectodermal explants, XBF-2 converts cells from an epidermal to a...