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公司名称: SARSTEDT
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Detection and Quantification of African Swine Fever Virus in MA-104 Cells
Author:
Date:
2021-03-20
[Abstract]  

Detection of live African swine fever virus (ASFV) has historically relied on the use of primary swine macrophages (PSM). PSM do not replicate and have to be isolated fresh from donor swine. We previously identified that a MA-104 cells (ATCC #CRL-2378.1), a commercially available cell line isolated from African green monkey (Cercopithecus aethiops) kidney epithelial cells, supports the detection of ASFV from field samples with a sensitivity comparable to that of primary swine macrophages. Collection of swine blood or lungs is time costing, which is often not readily available in most

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[摘要]  [摘要]活的非洲猪瘟病毒(ASFV)的检测在历史上一直依赖于原代猪巨噬细胞(PSM)的使用。PSM不能复制,必须从供体猪中新鲜分离。我们先前发现,MA-104细胞(ATCC#CRL-2378.1)是一种从非洲绿猴(Cercopithecus aethiops )肾上皮细胞分离的商业细胞系,支持从野外样品中检测ASFV,其灵敏度可与ASFV媲美。原发性猪巨噬细胞。Ç的猪的血液或肺ollection是时间成本计算,这往往是在大多数兽医诊断实验室容易获得的。MA-104细胞因此可以用作原代猪巨噬细胞的替代品,通过避免原代猪巨噬细胞的产生来节省大量的准备时间。

[背景]非洲猪瘟病毒(ASFV)的成员,非洲猪瘟病毒科的家庭,导致野猪和家猪具有高度传染性和致命性出血热,即非洲猪瘟(ASF)。成熟的病毒颗粒(病毒粒子)直径为175-215 nm,脂质双层包裹了二十面体衣壳和180-190千碱基对的双链DNA基因组。根据宿主特征和病毒株,该病毒会引起多种症状,包括高度致死性至亚临床性(Tulman等,2009 ...

Single-run HPLC Quantification of Plant Cell Wall Monosaccharides
Author:
Date:
2020-03-05
[Abstract]  The plant cell wall is a complex network of polysaccharides and proteins that provides strength and structural integrity to plant cells, as well as playing a vital role in growth, development, and defense response. Cell wall polysaccharides can be broadly grouped into three categories: cellulose, pectins, and hemicelluloses. Dynamic interactions between polysaccharides and cell wall-associated proteins contribute to regions of flexibility and rigidity within the cell wall, allowing for remodeling when necessary during growth, environmental adaptation, or stress response activation. These ... [摘要]  [摘要] 植物细胞壁是由多糖和蛋白质组成的复杂网络,可为植物细胞提供强度和结构完整性,并且在生长,发育和防御反应中起着至关重要的作用。细胞壁多糖可大致分为三类:纤维素,果胶和半纤维素。多糖和细胞壁相关蛋白之间的动态相互作用有助于细胞壁内的柔韧性和刚性区域,从而在生长,环境适应或应激反应激活过程中在必要时进行重塑。这些多糖相互作用对于植物生长至关重要,但是它们也增加了植物的难度。 在尝试分析细胞壁结构和组成时进行了反驳。过去,已经使用冗长的方案来量化对纤维素有贡献的细胞壁单糖以及中性和酸性细胞壁多糖。近来,STREA 毫升为单糖定量描述INED方法。该方案结合了简化的水解方法,随后进行了多次运行的高性能阴离子交换色谱和脉冲安培检测(HPAEC-PAD)。在这里,我们介绍了该协议的更新版本,其中我们可以在单个高效液相色谱HPAEC-PAD梯度曲线中分析所有九种细胞壁单糖。包括酶促淀粉降解以及替代的内部标准以提高定量准确性,以及便于数据分析的即用型Python脚本为该协议增加了广泛的应用范围。该方案用于分析拟南芥的浅色幼苗和深色的胚轴,但适用于任何植物组织。

[背景] ...

ARP2/3 Phosphorylation Assay in the Presence of Recombinant Bacterial Effectors
Author:
Date:
2017-04-05
[Abstract]  The Actin-Related Protein 2/3 (ARP2/3) complex is an actin nucleator that generates a branched actin network in mammalian cells. In addition to binding nucleation promoting factors, LeClaire et al. demonstrated that its phosphorylation state is essential key for its activity (LeClaire et al., 2008). In cells, the ARP2/3 complex is phosphorylated on threonine and tyrosine residues of the ARP2, ARP3, and ARPC1 subunits (Vadlamudi et al., 2004; LeClaire et al., 2008; Narayanan et al., 2011; LeClaire et al., 2015). In particular, ... [摘要]  肌动蛋白相关蛋白2/3(ARP2 / 3)复合物是在哺乳动物细胞中产生支链肌动蛋白网络的肌动蛋白成核剂。除了结合成核促进因子之外,LeClaire等人。证明其磷酸化状态是其活性的关键(LeClaire等人,2008)。在细胞中,ARP2 / 3复合物在ARP2,ARP3和ARPC1亚基的苏氨酸和酪氨酸残基上磷酸化(Vadlamudi等人,2004; LeClaire等人)。 ,2008; Narayanan等人,2011; LeClaire等人,2015)。特别地,ARP2亚基的苏氨酸237和238的磷酸化对于允许将ARP2 / 3复合物结构改变为其活性构象是必要的(Narayanan等人,2011; LeClaire等人al ,2015)。虽然对于真核细胞中的许多功能很重要,但ARP2 / 3复合物活性也有利于多种细胞病原体(Haglund和Welch,2011; Welch和Way,2013)。最近,我们证明细菌病原体,嗜肺军团菌,使用注射在宿主细胞质细胞中的细菌蛋白激酶来操纵ARP2 / 3复合磷酸化状态(Michard等人,2015) )。在这里,我们描述如何测试细菌蛋白激酶或另一种蛋白激酶在体外上下文中磷酸化ARP2 / 3复合物的能力。首先,产生和纯化ARP2 / 3复合物和细菌蛋白激酶。然后,将纯化的蛋白质在ATP存在下培养,并通过Western印迹分析ARP2 / ...

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