Imposing order on the family of ubiquitin-conjugating (E2) enzymes through intracellular perturbation with nanobodies
通过纳米抗体的细胞内扰动对泛素结合 (E2) 酶家族施加顺序
基本信息
- 批准号:10671648
- 负责人:
- 金额:$ 123.9万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2019
- 资助国家:美国
- 起止时间:2019-09-30 至 2024-07-31
- 项目状态:已结题
- 来源:
- 关键词:AffectAlpacaAntibodiesAreaBiologyCRISPR/Cas technologyCamelsCellsCellular biologyChargeComplementComplexCrystallizationCytosolElementsEngineeringEnsureEnzymesEukaryotic CellFamilyGoalsImmunizationImmunoglobulin FragmentsImmunoglobulinsIn VitroIndividualInflammatory ResponseInternetKnowledgeLlamaMethodsModificationMolecularMolecular ChaperonesMusMutagenesisNatural SourcePathway interactionsProcessProductionPropertyProteinsProteomeReactionResolutionScreening procedureSortingSourceSystemUbiquitinUbiquitin familyUbiquitin-Activating EnzymesUbiquitin-Conjugating EnzymesUbiquitinationantigen bindingexperimental studygenetic approachin vivointerestmouse modelmulticatalytic endopeptidase complexnanobodiesnovelprotein protein interactionscreeningsmall hairpin RNAthioestertoolubiquitin ligaseubiquitin-protein ligaseyeast two hybrid system
项目摘要
Abstract
The ubiquitin-proteasome system affects almost every aspect of eukaryotic cell biology. Ubiquitin conjugation is
organized in a highly hierarchical manner, with a family of ~40 E2-type ubiquitin conjugating enzymes interposed
between one or two E1-type ubiquitin-activating enzymes and literally hundreds of E3 ubiquitin ligases, the latter
charged with substrate modification. The multiplicity of E2s and the many E3s they serve has made it challenging
to sort out their individual contributions to the overall process in living cells: most of what is known for the
properties of E2s is based on in vitro experiments. In this proposal I will therefore fill this gap in our knowledge
and study the in vivo properties of the E2 family. I will apply new methods to deliver E2s -in thioester linkage with
a tagged ubiquitin- into living cells, a goal not previously within reach, to probe their contributions to the overall
process of ubiquitylation. Using mice genetically modified for the purpose, I will further develop a suite of antibody
fragments that will be used to control and direct interactions of the different E2s intracellularly in ways not
previously possible. The focus of my proposal is thus on an in vivo analysis of ubiquitylation, using a newly
developed toolkit that will find application in other areas of biology. Single domain antibody fragments (VHHs or
nanobodies) are the smallest immunoglobulin-derived fragments that retain antigen binding properties. Currently
their production revolves around the use of camelids as the only natural source of heavy chain-only antibodies,
from which VHHs are then derived. VHHs are unusual, in that they can be expressed in the cytosol as single
chains with retention of antigen binding properties. Consequently, they can be used to disrupt intracellular protein-
protein interactions, or to enforce interactions between proteins that would not occur on their own accord. These
properties I will exploit to manipulate the above E2s and the reactions in which they participate, especially in the
context of the inflammatory response. I propose to engineer mice such that they are capable of producing heavy
chain only antibodies as a source of VHHs, thus eliminating the need for immunization of the larger and more
cumbersome llamas, camels or alpacas. Screening for antibody fragments with suitable properties will employ a
novel bacterial two-hybrid screening procedure to maximize the likelihood of obtaining single domain antibodies
that can recognize and modulate E2s in living cells.
While my approach is centered on E2s, it will serve as an example of how standard genetic approaches
(mutagenesis; deletion; shRNA; Cas9/CRISPR) can be complemented by methods that leave the target proteome
intact, instead relying on exogenously introduced biologicals (VHHs or nanobodies) as molecular perturbants.
The ability of VHHs to serve as crystallization chaperones ensures that the consequences of such perturbations
can be understood at molecular, if not atomic resolution. This concept is obviously transposable to any complex
pathway of interest. Therein lies an additional pioneering element of this proposal.
摘要
泛素-蛋白酶体系统影响着真核细胞生物学的几乎每一个方面。泛素缀合是
以高度层次化的方式组织,其中插入了约40个E2型泛素结合酶家族
一个或两个E1型泛素激活酶和数以百计的E3泛素连接酶之间,后者
负责基板改性。E2的多样性和它们所服务的许多E3使其具有挑战性
来整理它们对活细胞中整个过程的贡献:大多数已知的
E2 s的特性是基于体外实验。因此,在本建议中,我将填补我们知识上的这一空白
并研究E2家族的体内特性。我将应用新的方法来递送E2 s-in硫酯键,
一个标记的泛素-进入活细胞,一个目标,以前没有达到,以探测他们的贡献,整体
泛素化的过程。以转基因小鼠为目的,我将进一步开发一套抗体
这些片段将用于控制和指导细胞内不同E2的相互作用,
以前可能的。因此,我的建议的重点是在体内分析泛素化,使用新的
开发的工具包将在生物学的其他领域找到应用。单结构域抗体片段(VHH或
纳米抗体)是保留抗原结合特性的最小免疫球蛋白衍生片段。目前
它们的生产围绕着使用骆驼科动物作为仅有重链的抗体的唯一天然来源,
然后从其导出VHH。VHH是不寻常的,因为它们可以在胞质溶胶中表达为单一的VHH。
保留抗原结合特性的链。因此,它们可用于破坏细胞内蛋白质-
蛋白质相互作用,或加强蛋白质之间不会自行雅阁发生的相互作用。这些
我将利用这些性质来操纵上述E2和它们参与的反应,特别是在
炎症反应的背景。我建议改造老鼠,使它们能够产生重
链抗体作为VHH的来源,从而消除了对较大和较大的免疫的需要。
笨重的美洲驼骆驼或羊驼筛选具有合适性质的抗体片段将采用
最大化获得单结构域抗体的可能性的新型细菌双杂交筛选方法
能够识别和调节活细胞中的E2。
虽然我的方法是以E2为中心的,但它将作为标准遗传方法的一个例子,
(诱变;缺失; shRNA; Cas9/CRISPR)可以通过留下靶蛋白质组的方法来补充。
完整的,而不是依赖于外源引入的生物制剂(VHH或纳米抗体)作为分子扰动剂。
VHH作为结晶伴侣的能力确保了这种扰动的后果
即使不是原子级的,也可以用分子级的分辨率来理解。这个概念显然可以转置到任何复形
兴趣之路。这就是这项建议的另一个开拓性因素。
项目成果
期刊论文数量(9)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Antigen discovery tools for adaptive immune receptor repertoire research.
- DOI:10.1016/j.coisb.2020.10.002
- 发表时间:2020-12
- 期刊:
- 影响因子:3.7
- 作者:Bousbaine D;Ploegh HL
- 通讯作者:Ploegh HL
A class II MHC-targeted vaccine elicits immunity against SARS-CoV-2 and its variants.
- DOI:10.1073/pnas.2116147118
- 发表时间:2021-11-02
- 期刊:
- 影响因子:11.1
- 作者:Pishesha N;Harmand TJ;Rothlauf PW;Praest P;Alexander RK;van den Doel R;Liebeskind MJ;Vakaki MA;McCaul N;Wijne C;Verhaar E;Pinney W 3rd;Heston H;Bloyet LM;Pontelli MC;Ilagan MXG;Jan Lebbink R;Buchser WJ;Wiertz EJHJ;Whelan SPJ;Ploegh HL
- 通讯作者:Ploegh HL
An armed anti-immunoglobulin light chain nanobody protects mice against influenza A and B infections.
武装抗免疫球蛋白轻链纳米抗体可保护小鼠免受甲型和乙型流感病毒感染。
- DOI:10.1126/sciimmunol.adg9459
- 发表时间:2023
- 期刊:
- 影响因子:24.8
- 作者:Liu,Xin;Balligand,Thomas;Carpenet,Claire;Ploegh,HiddeL
- 通讯作者:Ploegh,HiddeL
USP16 is an ISG15 cross-reactive deubiquitinase that targets pro-ISG15 and ISGylated proteins involved in metabolism.
- DOI:10.1073/pnas.2315163120
- 发表时间:2023-12
- 期刊:
- 影响因子:11.1
- 作者:Jin Gan;Adán Pinto-Fernández;D. Flierman;J. L. Akkermans;D. O’Brien;Helene Greenwood;H. C. Scott;Günter Fritz;K. Knobeloch;J. Neefjes;Hans van Dam;H. Ovaa;H. Ploegh;Benedikt M. Kessler;P. Geurink;A. Sapmaz
- 通讯作者:Jin Gan;Adán Pinto-Fernández;D. Flierman;J. L. Akkermans;D. O’Brien;Helene Greenwood;H. C. Scott;Günter Fritz;K. Knobeloch;J. Neefjes;Hans van Dam;H. Ovaa;H. Ploegh;Benedikt M. Kessler;P. Geurink;A. Sapmaz
Nanobodies in cancer.
- DOI:10.1016/j.smim.2020.101425
- 发表时间:2021-03
- 期刊:
- 影响因子:7.8
- 作者:Verhaar ER;Woodham AW;Ploegh HL
- 通讯作者:Ploegh HL
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Hidde L. Ploegh其他文献
Translating cell biology in vitro to immunity in vivo
将体外细胞生物学转化为体内免疫
- DOI:
10.1038/nature02762 - 发表时间:
2004-07-08 - 期刊:
- 影响因子:48.500
- 作者:
Marianne Boes;Hidde L. Ploegh - 通讯作者:
Hidde L. Ploegh
Procédés de ligature et utilisations associées
结扎与应用协会程序
- DOI:
- 发表时间:
2010 - 期刊:
- 影响因子:0
- 作者:
Hidde L. Ploegh;John M. Antos;Maximilian Wei;Carla P. Guimaraes - 通讯作者:
Carla P. Guimaraes
A mouse monoclonal antibody against Alexa Fluor 647.
针对 Alexa Fluor 647 的小鼠单克隆抗体。
- DOI:
- 发表时间:
2014 - 期刊:
- 影响因子:0
- 作者:
Irene Wuethrich;E. Guillén;Hidde L. Ploegh - 通讯作者:
Hidde L. Ploegh
Sec6l-mediated transfer of a membrane protein from the endoplasmic reticulum to the proteasome for destruction
Sec61 介导的膜蛋白从内质网转移到蛋白酶体进行降解
- DOI:
10.1038/384432a0 - 发表时间:
1996-12-05 - 期刊:
- 影响因子:48.500
- 作者:
Emmanuel J. H. J. Wiertz;Domenico Tortorella;Matthew Bogyo;Joyce Yu;Walther Mothes;Thomas R. Jones;Tom A. Rapoport;Hidde L. Ploegh - 通讯作者:
Hidde L. Ploegh
Nanobody-based bispecific antibody engagers targeting CTLA-4 or PD-L1 for cancer immunotherapy
基于纳米抗体的双特异性抗体衔接子靶向 CTLA-4 或 PD-L1 用于癌症免疫治疗
- DOI:
10.1038/s41551-025-01447-z - 发表时间:
2025-07-16 - 期刊:
- 影响因子:26.600
- 作者:
Xin Liu;Camille Le Gall;Ryan K. Alexander;Ella Borgman;Thomas Balligand;Hidde L. Ploegh - 通讯作者:
Hidde L. Ploegh
Hidde L. Ploegh的其他文献
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{{ truncateString('Hidde L. Ploegh', 18)}}的其他基金
Imposing order on the family of ubiquitin-conjugating (E2) enzymes through intracellular perturbation with nanobodies
通过纳米抗体的细胞内扰动对泛素结合 (E2) 酶家族施加顺序
- 批准号:
10464850 - 财政年份:2021
- 资助金额:
$ 123.9万 - 项目类别:
Non-invasive imaging of the anti-tumor immune response
抗肿瘤免疫反应的非侵入性成像
- 批准号:
10520018 - 财政年份:2020
- 资助金额:
$ 123.9万 - 项目类别:
Non-invasive imaging of the anti-tumor immune response
抗肿瘤免疫反应的非侵入性成像
- 批准号:
10318578 - 财政年份:2020
- 资助金额:
$ 123.9万 - 项目类别:
Imposing order on the family of ubiquitin-conjugating (E2) enzymes through intracellular perturbation with nanobodies
通过纳米抗体的细胞内扰动对泛素结合 (E2) 酶家族施加顺序
- 批准号:
10461021 - 财政年份:2019
- 资助金额:
$ 123.9万 - 项目类别:
Imposing order on the family of ubiquitin-conjugating (E2) enzymes through intracellular perturbation with nanobodies
通过纳米抗体的细胞内扰动对泛素结合 (E2) 酶家族施加顺序
- 批准号:
10208670 - 财政年份:2019
- 资助金额:
$ 123.9万 - 项目类别:
Imposing order on the family of ubiquitin-conjugating (E2) enzymes through intracellular perturbation with nanobodies
通过纳米抗体的细胞内扰动对泛素结合 (E2) 酶家族施加顺序
- 批准号:
10002176 - 财政年份:2019
- 资助金额:
$ 123.9万 - 项目类别:
Non-invasive imaging of the immune response based on the use of isotopically labeled single domain antibody fragments
基于使用同位素标记的单域抗体片段的免疫反应的非侵入性成像
- 批准号:
8873207 - 财政年份:2015
- 资助金额:
$ 123.9万 - 项目类别:
Sortase-mediated installation of recognition modules on T cells for redirected ki
分选酶介导在 T 细胞上安装识别模块以实现重定向 ki
- 批准号:
8683479 - 财政年份:2014
- 资助金额:
$ 123.9万 - 项目类别:
Endosomal TLRs and their accessory proteins: cell biology and biochemistry
内体 TLR 及其辅助蛋白:细胞生物学和生物化学
- 批准号:
8454409 - 财政年份:2012
- 资助金额:
$ 123.9万 - 项目类别:
Enzymatic modification of anti-DEC205 to manipulate its immunogenic properties
酶促修饰抗 DEC205 以操纵其免疫原性特性
- 批准号:
8386128 - 财政年份:2012
- 资助金额:
$ 123.9万 - 项目类别:
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