Category:LBGAD

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Crenarchaeol, Calditocaldarchaeol, H-shaped etc.

Upper classes: LB LBG LBGA

Calditocaldarchaeol
EEL3007.png

Thermoacidophilic archaea in the order Sulfolobales have caldoarchaeols ether-linked with calditol as its major membrane lipid. The caldoarchaeol core may have multiple five-membered rings in its isoprenyl chains, whose number correlates with the growth temperature. The ring number can be detected by mass spectrometry[1]

強酸性高温下で生育するSulfolobales目に属する菌はカルドアーキオールの片側にカルジトールがエーテル結合した骨格を主要な膜脂質としています。カルドアーキオール骨格は温度に応じて複数の5員環構造を作り、その数を質量分析計で同定する方法も知られています。

Crenarchaeol
EEL0251.png

Crenarchaeol is a glycerol dialkyl glycerol tetraether (GDGT) with a unique cyclohexane moiety. It is used as a biomarker for ammonia-oxidizing archaea (AOA) such as Nitrosopumilus maritimus and 'Candidatus Nitrosocaldus yellowstonii'. It is abundant in tropical ocean water and certain soils including marine sediments.

クレンアーキオールは変わったシクロヘキサン骨格を持つGDGTで、Nitrosopumilus maritimus や 'Candidatus Nitrosocaldus yellowstonii' のようなアンモニア酸化アーキアに特徴的(バイオマーカー)と考えられています。

海水や地底に多く存在しています。

Trialkyl caldarchaeol
LBGADB0N04.png

Trialkyl type is considered a precursor of caldarchaeol, before forming a C-C bond between the isopranyl chains of two archaeols. It is observed in only several species and its biosynthesis is still unclear.

トリアルキル型はカルドアーキオールの前駆体、二分子のアーキオールの間で C-C 結合が完成する前の状態、と考えられています。しかし限られた菌でしか見つかっておらず、具体的な生合成経路はわかっていません。

  1. Murae T et al.(2002) J Mass Spectrom 37(2):209 PMID 11857765

List

Showing below 11 results of search LBGAD.

  1. LBGADB0N01:   calditocaldarchaeol  dibiphytanylglycerol-calditoltetraether  calditoglycero-caldarchaeol  calditoglycerocaldarchaeol  GDNT  
  2. LBGADB0N02:   H-shaped caldarchaeol  
  3. LBGADB0N03:   crenarchaeol  
  4. LBGADB0N04:   trialkylcaldarchaeol  caldarchaeol (trialkyl-type)  
  5. LBGADG0N01:   trialkylcaldarchaetidylglycerol  trialkylcaldarchaetidyl-glycerol  caldarchaetidylglycerol (trialkyl-type)  caldarchaetidyl-glycerol (trialkyl-type)  
  6. LBGADI1N01:   trialkylcaldarchaetidyl-myo-inositol  
  7. LBGADI2G01:   glucopyranosyl-β-calditocaldarchaetidyl-myo-inositol  
  8. LBGADI2N01:   myo-inositolphosphoric-trialkylcaldarchaetidyl-myo-inositol  
  9. LBGADI2S01:   HSO3-glucopyranosyl-β-calditocaldarchaetidyl-myo-inositol  
  10. LBGADN1G01:   glucopyranosyl-β-calditocaldarchaeol  
  11. LBGADN1S01:   HSO3-glucopyranosyl-β-calditocaldarchaeol  

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