ジャーナル: Nat Commun / 年: 2024 タイトル: Towards a molecular picture of the archaeal cell surface. 著者: Matthew C Gaines / Michail N Isupov / Mathew McLaren / Clara L Mollat / Risat Ul Haque / Jake K Stephenson / Shamphavi Sivabalasarma / Cyril Hanus / Daniel Kattnig / Vicki A M Gold / Sonja ...著者: Matthew C Gaines / Michail N Isupov / Mathew McLaren / Clara L Mollat / Risat Ul Haque / Jake K Stephenson / Shamphavi Sivabalasarma / Cyril Hanus / Daniel Kattnig / Vicki A M Gold / Sonja Albers / Bertram Daum / 要旨: Archaea produce various protein filaments with specialised functions. While some archaea produce only one type of filament, the archaeal model species Sulfolobus acidocaldarius generates four. These ...Archaea produce various protein filaments with specialised functions. While some archaea produce only one type of filament, the archaeal model species Sulfolobus acidocaldarius generates four. These include rotary swimming propellers analogous to bacterial flagella (archaella), pili for twitching motility (Aap), adhesive fibres (threads), and filaments facilitating homologous recombination upon UV stress (UV pili). Here, we use cryo-electron microscopy to describe the structure of the S. acidocaldarius archaellum at 2.0 Å resolution, and update the structures of the thread and the Aap pilus at 2.7 Å and 2.6 Å resolution, respectively. We define features unique to archaella of the order Sulfolobales and compare their structure to those of Aap and threads in the context of the S-layer. We define distinct N-glycan patterns in the three filaments and identify a putative O-glycosylation site in the thread. Finally, we ascertain whether N-glycan truncation leads to structural changes in archaella and Aap.
全体 : Aap filament of the S. acidocaldarius species deficient in sulfoq...
全体
名称: Aap filament of the S. acidocaldarius species deficient in sulfoquinovose transferase enzyme
要素
細胞器官・細胞要素: Aap filament of the S. acidocaldarius species deficient in sulfoquinovose transferase enzyme
タンパク質・ペプチド: DUF4352 domain-containing protein
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超分子 #1: Aap filament of the S. acidocaldarius species deficient in sulfoq...
超分子
名称: Aap filament of the S. acidocaldarius species deficient in sulfoquinovose transferase enzyme タイプ: organelle_or_cellular_component / ID: 1 / 親要素: 0 / 含まれる分子: all