Asgard Archaea illuminate the Origin of Eukaryotic Cellular Complexity pdf epub mobi txt 電子書 下載 2024


Asgard Archaea illuminate the Origin of Eukaryotic Cellular  Complexity

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Katarzyna Zaremba-Niedzwiedzka
Nature
2017-1-17
76
30 USD
9787579620211

圖書標籤: 演化生物學  微生物學  古生物學  分子生物學   


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发表于2024-11-03

Asgard Archaea illuminate the Origin of Eukaryotic Cellular Complexity epub 下載 mobi 下載 pdf 下載 txt 電子書 下載 2024

Asgard Archaea illuminate the Origin of Eukaryotic Cellular Complexity epub 下載 mobi 下載 pdf 下載 txt 電子書 下載 2024

Asgard Archaea illuminate the Origin of Eukaryotic Cellular Complexity pdf epub mobi txt 電子書 下載 2024



圖書描述

The origin and cellular complexity of eukaryotes represent a major enigma in biology. Current data support scenarios in which an archaeal host cell and an alphaproteobacterial (mitochondrial) endosymbiont merged together, resulting in the first eukaryotic cell. The host cell is related to Lokiarchaeota, an archaeal phylum with many eukaryotic features. The emergence of the structural complexity that characterizes eukaryotic cells remains unclear. Here we describe the ‘Asgard’ superphylum, a group of uncultivated archaea that, as well as Lokiarchaeota, includes Thor-, Odin- and Heimdallarchaeota. Asgard archaea affiliate with eukaryotes in phylogenomic analyses, and their genomes are enriched for proteins formerly considered specific to eukaryotes. Notably, thorarchaeal genomes encode several homologues of eukaryotic membrane-trafficking machinery components, including Sec23/24 and TRAPP domains. Furthermore, we identify thorarchaeal proteins with similar features to eukaryotic coat proteins involved in vesicle biogenesis. Our results expand the known repertoire of ‘eukaryote-specific’ proteins in Archaea, indicating that the archaeal host cell already contained many key components that govern eukaryotic cellular complexity.

Asgard Archaea illuminate the Origin of Eukaryotic Cellular Complexity 下載 mobi epub pdf txt 電子書

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Asgard Archaea illuminate the Origin of Eukaryotic Cellular Complexity pdf epub mobi txt 電子書 下載
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用戶評價

評分

* Asgard超門: Heimdall, Ordin, Thor, Loki; * 7個地點,Sediment, Vent, Springs, 其中包括大西洋中脊Loki's Cattle; * 先進化齣內摺Membrance,再共生綫粒體獲得巨大能量和進化優勢

評分

* Asgard超門: Heimdall, Ordin, Thor, Loki; * 7個地點,Sediment, Vent, Springs, 其中包括大西洋中脊Loki's Cattle; * 先進化齣內摺Membrance,再共生綫粒體獲得巨大能量和進化優勢

評分

* Asgard超門: Heimdall, Ordin, Thor, Loki; * 7個地點,Sediment, Vent, Springs, 其中包括大西洋中脊Loki's Cattle; * 先進化齣內摺Membrance,再共生綫粒體獲得巨大能量和進化優勢

評分

* Asgard超門: Heimdall, Ordin, Thor, Loki; * 7個地點,Sediment, Vent, Springs, 其中包括大西洋中脊Loki's Cattle; * 先進化齣內摺Membrance,再共生綫粒體獲得巨大能量和進化優勢

評分

* Asgard超門: Heimdall, Ordin, Thor, Loki; * 7個地點,Sediment, Vent, Springs, 其中包括大西洋中脊Loki's Cattle; * 先進化齣內摺Membrance,再共生綫粒體獲得巨大能量和進化優勢

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