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RBD

RBD的相关文献在1998年到2023年内共计288篇,主要集中在建筑科学、旅游经济、经济计划与管理 等领域,其中期刊论文116篇、专利文献172篇;相关期刊88种,包括经济研究导刊、浙商、城市建设理论研究(电子版)等; RBD的相关文献由656位作者贡献,包括金艾顺、王应明、胡超等。

RBD—发文量

期刊论文>

论文:116 占比:40.28%

专利文献>

论文:172 占比:59.72%

总计:288篇

RBD—发文趋势图

RBD

-研究学者

  • 金艾顺
  • 王应明
  • 胡超
  • 韩晓建
  • 李婷婷
  • 王建为
  • 李胜龙
  • 李海梅
  • 董金华
  • 陈丽梅
  • 期刊论文
  • 专利文献

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    • Deepa Raghu; Pamela Hamill; Arpitha Banaji; Amy McLaren; Yu-Ting Hsu
    • 摘要: Severe acute respiratory syndrome-associated coronavirus 2 is a major global health issue and is driving the need for new therapeutics.The surface spike protein,which plays a central role in virus infection,is currently the target for vaccines and neutralizing treatments.The emergence of novel variants with multiple mutations in the spike protein may reduce the effectiveness of neutralizing antibodies by altering the binding activity of the protein with angiotensin-converting enzyme 2(ACE2).To understand the impact of spike protein mutations on the binding interactions required for virus infection and the effectiveness of neutralizing monoclonal antibody(mAb)therapies,the binding activities of the original spike protein receptor binding domain(RBD)sequence and the reported spike protein variants were investigated using surface plasmon resonance.In addition,the interactions of the ACE2 receptor,an antispike mAb(mAb1),a neutralizing mAb(mAb2),the original spike RBD sequence,and mutants D614G,N501Y,N439K,Y453F,and E484K were assessed.Compared to the original RBD,the Y453F and N501Y mutants displayed a significant increase in ACE2 binding affinity,whereas D614G had a substantial reduction in binding affinity.All mAb-RBD mutant proteins displayed a reduction in binding affinities relative to the original RBD,except for the E484K-mAb1 interaction.The potential neutralizing capability of mAb1 and mAb2 was investigated.Accordingly,mAb1 failed to inhibit the ACE2-RBD interaction while mAb2 inhibited the ACE2-RBD interactions for all RBD mutants,except mutant E484K,which only displayed partial blocking.
    • 刘巨钊; 杨玉萍; 徐建波; 吕鸿昌; 陈俊宇; 张春椿; 崔琦
    • 摘要: 新冠病毒(SARS-CoV-2)出现越来越多侵染性更强的突变体,比较有代表性的毒株是B.1.351和B.1.617,它们的共同特点是在S蛋白484号位点有氨基酸突变。484号位点是一个与hACE2上的残基K31相互作用的位点。从分子动力学和蛋白质对接的角度入手,通过研究新冠病毒的E484K和E484Q突变,发现与hACE2直接作用的氨基酸残基(A475、N487)间的氢键键长缩短。动力学结果表明,475~489这段氨基酸序列具有高度的活跃性,是一个不应该被忽略的药物设计靶点。可以为开发新冠病毒抑制剂提供新靶点,一定程度上预测新冠病毒未来进化方向,同时也为类似的冠状病毒的突变研究提供新思路。
    • 靳晨晖; 淮洋; 陈鑫; 王刚
    • 摘要: 飞翼布局因其特殊的构型,表现出与常规飞行器较大的性能差异.内埋式弹舱能够帮助战机提高其隐身性能,但舱门干扰和空腔结构下流动较为复杂,多枚弹体在分离过程中极有可能互相发生碰撞或与武器舱接触,威胁载机安全,因而提高内埋式武器的分离品质至关重要.使用改进的非结构嵌套网格径向基函数插值方法、耦合流动控制方程和刚体动力学方程(RBD,Rigid Body Dynam-ics),对一类常规"W"型飞翼布局内埋式武器的分离过程进行数值模拟,分离过程考虑了分离间隔(0 s/0.01 s/0.03 s)对弹体分离品质的影响.仿真结果表明,在前后舱2枚弹体分离的过程中,采用时序分离的方式能够有效提高后舱分离弹体的分离品质,整个分离过程中弹体的姿态变化较为平稳.
    • 李靖1
    • 摘要: 帕金森病是一种随年龄增长发生的神经系统退行性病变,其带来的神经损害是不可逆的,尚无法根治。虽然目前帕金森病患者的寿命已基本与常人无异,但随着时间推移,运动和非运动损伤日渐增加,患者逐步丧失生活自理能力,到最后只有在治不好、死不了、又活不好的困境中苦苦挣扎,这无论是对患者还是家庭,都是一种巨大的负担。其实,对待帕金森病,我们不妨抱着如果不能战胜,那就选择和平共处的心态,积极配合治疗,尽可能的减轻或延缓帕金森病的症状,让生活质量尽可能的少打折扣。本期编辑部走访了南京脑科医院神经内科主任医师、教授刘卫国,请刘教授给大家谈一谈帕金森病。
    • 韩剑磊; 解长雯
    • 摘要: 文章基于旅游体验视角,选择昆明典型的城市RBD片区,通过昆明城市RBD旅游体验模型构建,对昆明市城市RBD进行评价分析,并在此基础上从城市规划、旅游策划、文化传承等方面切入,进行城市游憩商业区(RBD)旅游体验提升路径分析,以期对昆明城市旅游发展提供理论和实践支撑.
    • 丛峰峰
    • 摘要: 介绍了地铁可靠性分析中RBD的应用,通过以上海地铁某项目为例,阐述了如何在地铁项目执行过程中使用RBD对系统的可靠性要求进行分配.
    • 陈静
    • 摘要: 当前RBD建设已成为城市转型过程中优化城市片区功能与空间结构、提升城市形象、带动城市复兴的重要手段。黄石后河堤地区城市设计针对该地区原有功能逐渐衰退、活力丧失的现实情况,因地制宜地提出“都市绿廊+城市客厅”的基本理念,妥善处理黄石后河堤遗址等特色资源要素,并通过整合功能结构、优化土地配置、构建连续的步行网络和营造富有特色的天际线等一系列的设计策略,将黄石后河堤地区打造为黄石港区富有特色的RBD,实现由消极空间向积极空间的转变,希望能为城市更新背景下类似地区的RBD建设提供案例启示。%RBD development has become an important approach to improve district function, spatial structure, city image, and city vitality. Houhedi area urban design deals with the functional and vitality loss problems, proposes “green corridor and city hal” concept, deals with relic resources, integrates functional structure, improves land use conifguration, builds continuous pedestrian network, and creates characteristic skyline, and builds the area a RBD of Huangshi port area, and realizes transition of the area from passive space to active space.
    • 王慧娟; 王文玲; 蓝佳明; 邓瑶; 谭文杰
    • 摘要: 目的:制备抗中东呼吸综合征冠状病毒(Middle East respiratory syndrome coronavirus, MERS-CoV)刺突蛋白(S)受体结合区(receptor binding domain,RBD)的单克隆抗体(单抗),并对其特性进行鉴定。方法将昆虫-杆状病毒表达的 MERS-CoV S 蛋白 RBD 片段纯化后免疫 BALB/ c 小鼠,取小鼠脾细胞与骨髓瘤细胞 Sp2/0融合,通过有限稀释法筛选阳性克隆,用酶联免疫吸附试验(ELISA)、免疫印迹法(Western blot)和 MERS-CoV 假病毒中和试验对所获得的细胞克隆进行筛选和鉴定。结果共筛选出12株杂交瘤细胞,ELISA 证实其分泌的单抗与 MERS-CoV S 蛋白 RBD 片段有特异反应;双抗体夹心法鉴定其中两株单抗2E4和2F3为免疫球蛋白 IgM 型,其余10株均为 IgG1型;MERS-CoV 假病毒中和试验结果显示4株单抗:1F1、2E4、3C3、3E6有中和活性;Western blot 分析表明单抗1F1、2E4、3C3、3E6能特异识别 MERS-CoV S 蛋白,而不与 SARS-CoV S 蛋白的 RBD 反应。结论我们制备了12株针对 MERS-CoV S 蛋白 RBD 的鼠源单抗,所获杂交瘤细胞株特异性强,分泌抗体性能稳定,其中4株具有中和活性。%Objective To prepare and screen out monoclonal antibodies against the receptor bind-ing domain (RBD) of Middle East respiratory syndrome coronavirus ( MERS-CoV) spike ( S) protein in mice. Methods The RBD of MERS-CoV S protein expressed in the insect-baculovirus system was purified and then used to immunize the female BALB/ c mice. The spleen cells collected from the mice were fused with myeloma Sp2 / 0 cells. The positive hybridoma cells were obtained by using limited dilution method. Enzyme-linked immunosorbent assay ( ELISA), Western blot assay and neutralization test based on the MERS-CoV pseudovirus were performed for further screening and identification. Results Twelve strains of hybridoma cells that produced the monoclonal antibodies against RBD of MERS-CoV S protein were screened out. All of the 12 monoclonal antibodies (McAbs) could have specific reaction with the RBD of MERS-CoV S protein as indicated by the results of ELISA. Of the 12 McAbs, two were identified as the immunoglobulin M (IgM) isotype and the rest were IgG1 isotype by using double antibodies sandwich ELISA. Four McAbs including 1F1, 2E4, 3C3 and 3E6 were identified as having neutralizing activity by the neutralization test based on MERS-CoV pseudovirus. Results of the Western blot assay showed that the four McAbs (1F1, 2E4, 3C3 and 3E6) could have specific reaction with the RBD of MERS-CoV S protein, but no cross-reac-tion with that of SARS-CoV S protein. Conclusion Twelve mouse-derived McAbs against the RBD of MERS-CoV S protein were obtained. The prepared hybridoma cells showed the characteristics of high speci-ficity and stability in antibody secretion. Four out of the 12 McAbs were proved to have neutralizing activity.
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