克拉米迪亚形虫效应体Tarp的N端与宿主河马通路发生接触
George F Aranjuez1, Om Patel1, Dev Patel1
1Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA.
Microbiology spectrum
|March 10, 2025
概括
甲状腺炎虫通过使用Tarp等效应器操纵宿主细胞. 塔尔普的N端区域 (N-Tarp) 改变了Hippo信号通路,促进宿主细胞的生存并影响细胞生长.
科学领域:
- 微生物学 微生物学
- 细胞生物学 细胞生物学
- 遗传学 是一个遗传学.
背景情况:
- 甲状腺炎 (Ct) 是一种主要的细菌性传染病,它使用分泌的效应物来操纵宿主细胞.
- 塔普效应器 (N-Tarp) 功能的N端区域在很大程度上是未知的,尽管它在许多克拉米迪亚物种中存在.
- 宿主细胞的存活对于克拉米迪亚的细胞内生命周期至关重要,但人们对这种机制的了解很少.
研究的目的:
- 研究N-Tarp的体内功能及其与宿主细胞生物学相互作用.
- 确定N-Tarp是否影响调节细胞增殖和存活的保存信号通路.
- 阐明克拉米迪亚促进宿主细胞存活的潜在机制.
主要方法:
- 利用Drosophila melanogaster作为一种体内模型系统来研究N-Tarp.
- 在Drosophila中转基因表达N-Tarp以观察发育和细胞表型.
- 分析了对萨尔瓦多-沃茨-河马信号通路及其下游目标在幼虫翅膀盘的影响.
主要成果:
- 在Drosophila中,N-Tarp的转基因表达导致了翅膀盘的过度生长和成人的翅膀大小的增加.
- 恩-塔普复制了Hippo通路联合激活器Yorkie的过度表达.
- N-Tarp导致Hippo目标基因的上调,通过减少约克或特定目标基因来拯救这些表型.
结论:
- 克拉米迪亚 Tarp 效应物的 N-终端区域足以改变宿主河马的信号传输.
- N-Tarp在Hippo通路联合激活器Yorkie的上游作用.
- 这项研究表明N-Tarp在调节宿主细胞生长和存活中的作用,这可能解释了克拉米迪亚的持久性策略.
关键词:
克拉米迪亚菌落状虫病 (chlamydia trachomatis) 是一种感染性疾病.这种植物是Drosophila.细胞信号传递是细胞的信号传递.效应器的功能 效应器的功能主体-病原体相互作用更多相关视频
13:59Methods to Identify the NMR Resonances of the 13C-Dimethyl N-terminal Amine on Reductively Methylated Proteins
Published on: December 12, 2013
6.2K
12:07Chemical Modification of the Tryptophan Residue in a Recombinant Ca2+-ATPase N-domain for Studying Tryptophan-ANS FRET
Published on: October 9, 2021
3.3K
相关概念视频
01:44Termination of Translation
5.3K
5.3K
01:35Pre-mRNA Processing: Modification of pre-mRNA Ends
9.1K
In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a cap to the 5' end of the growing transcript. In this process, a 5' phosphate is replaced by modified guanosine that has a methyl group attached (7-methyl guanosine). This 5' cap helps...
9.1K
02:42Transcription Attenuation in Prokaryotes
15.1K
Transcriptional attenuation occurs when RNA transcription is prematurely terminated due to the formation of a terminator mRNA hairpin structure. Bacteria use these hairpins to regulate the transcription process and control the synthesis of several amino acids including histidine, lysine, threonine, and phenylalanine. Transcription attenuation takes place in the non-coding regions of mRNA.
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
There are several different mechanisms used to attenuate transcription. In ribosome mediated...
15.1K
01:26Insertion of Single-pass Transmembrane Proteins in the RER
6.5K
Integral membrane proteins are proteins adhered to the lipid bilayer of a cell organelle or membrane. They can be of two types: transmembrane integral proteins that span the lipid bilayer and monotopic proteins that are attached to either side of the membrane but do not pass through it.
Integral transmembrane proteins possess transmembrane and extra membrane domains. The transmembrane domains are primarily made of 20-25 hydrophobic amino acids arranged in a helical secondary confirmation. These...
Integral transmembrane proteins possess transmembrane and extra membrane domains. The transmembrane domains are primarily made of 20-25 hydrophobic amino acids arranged in a helical secondary confirmation. These...
6.5K
01:45Tail-anchoring of Proteins in the ER Membrane
3.0K
Tail-anchored, or TA, proteins are estimated to make up to 3-5% of membrane proteins found in the eukaryotic cell. Such proteins have a single transmembrane domain located approximately 30 amino acid residues upstream from the C-terminal end. As a result, the signal recognition particle (SRP) cannot guide a TA protein to the ER membrane for cotranslational insertion. Hence, they are integrated into the ER membrane post-translationally using their C-terminal end as the anchor. TA proteins...
3.0K
02:01pre-mRNA Processing
52.5K
In eukaryotic cells, transcripts made by RNA polymerase are modified and processed before exiting the nucleus. Unprocessed RNA is called precursor mRNA or pre-mRNA to distinguish it from mature mRNA.
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a “cap” to the 5’ end of the growing transcript. In this process, a 5’ phosphate is replaced by modified guanosine that has a methyl group attached to it (7-Methyl...
Once about 20-40 ribonucleotides have been joined together by RNA polymerase, a group of enzymes adds a “cap” to the 5’ end of the growing transcript. In this process, a 5’ phosphate is replaced by modified guanosine that has a methyl group attached to it (7-Methyl...
52.5K