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Related Concept Videos

Biosynthesis of Lipids01:29

Biosynthesis of Lipids

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Microbial membranes exhibit remarkable diversity in lipid composition, reflecting evolutionary adaptations to various environmental conditions. The three domains of life—Bacteria, Archaea, and Eukarya—synthesize membrane lipids through distinct biosynthetic pathways, leading to fundamental structural differences that impact membrane stability, function, and adaptability.Fatty Acid-Based Lipids in Bacteria and EukaryaBacteria and eukaryotes share a common fatty acid biosynthesis...
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Lipids are an essential component of all biological membranes. The average lipid content in mammalian membranes is 50%, though it can be as low as 20% in the inner mitochondrial membrane or as high as 80% in the myelin sheath present around the nerve cells.
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Biological membranes show uneven distribution of different types of lipids in the inner and outer layers, resulting in transverse asymmetric membranes. The treatment of the erythrocyte membrane with the enzyme phospholipase confirmed the asymmetric nature of the lipid bilayer. The enzyme hydrolyzes lipids into fatty acids and hydrophilic groups. The phospholipase acts only on the outer layer of the membrane, while the inner layer remains intact. The phospholipase treatment resulted in 80%...
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Lipopolysaccharides (LPS) are crucial components of the outer membrane of Gram-negative bacteria, serving both structural and functional roles. It contributes to membrane stability and protects bacteria from host immune responses. LPS is composed of three major regions—lipid A, a core oligosaccharide, and an O antigen. The biosynthesis and assembly of LPS involve a highly coordinated set of enzymatic reactions and transport mechanisms. Additionally, LPS is recognized as an endotoxin,...
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Phosphoinositides and PIPs01:42

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Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
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Lipids function as structural components of cellular membranes, in addition to acting as energy reservoirs and signaling molecules. They are thus crucial to all living organisms.  The three biologically important classes of lipids are triglycerides, phospholipids, and steroids.
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Related Experiment Video

Updated: Feb 27, 2026

A Pipeline to Investigate the Structures and Signaling Pathways of Sphingosine 1-Phosphate Receptors
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Fungal Sphingolipids: Biosynthesis Pathways, Structural Features and Biological Functions.

Zixin Xue1,2,3,4, Liuxi Wang1,2,3,4, Chunmei Du1,2,3,4

  • 1Engineering Research Center of Agricultural Microbiology Technology, Ministry of Education, Heilongjiang University, Harbin 150080, China.

Journal of Fungi (Basel, Switzerland)
|February 26, 2026
PubMed
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This review explores fungal sphingolipids, detailing their structure, function, and metabolism. Understanding these lipids is crucial for developing novel antifungal therapies targeting sphingolipid pathways.

Keywords:
applicationsfunctionsfungimetabolic pathwaysphingolipidstructure

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Area of Science:

  • Biochemistry
  • Mycology
  • Cell Biology

Background:

  • Sphingolipids are vital amphipathic lipids found in eukaryotes and bacteria, regulating signal transduction and cellular homeostasis.
  • Their roles in cell polarity, metabolism, proliferation, and differentiation are well-established, yet fungal sphingolipid research is limited.
  • This review focuses on the understudied area of fungal sphingolipids.

Purpose of the Study:

  • To provide a comprehensive overview of fungal sphingolipid species, structures, biosynthesis, and degradation.
  • To summarize the essential functions of sphingolipids in fungal cell membranes, morphology, pathogenicity, and homeostasis.
  • To discuss the potential of targeting sphingolipid pathways for antifungal drug development.

Main Methods:

  • Literature review and synthesis of existing research on fungal sphingolipids.
  • Analysis of sphingolipid structures, metabolic pathways (biosynthesis and degradation), and functional roles in fungi.
  • Exploration of potential therapeutic strategies targeting fungal sphingolipid metabolism.

Main Results:

  • Detailed characterization of various fungal sphingolipid species and their structural attributes.
  • Elucidation of sphingolipid involvement in fungal cell membrane integrity, morphological changes, and pathogenicity.
  • Identification of sphingolipid metabolic pathways as promising targets for novel antifungal agents.
  • Summary of sphingolipid roles in fungal apoptosis and homeostasis.

Conclusions:

  • Fungal sphingolipids are critical for cell structure, development, and pathogenicity.
  • Targeting sphingolipid biosynthesis or degradation pathways presents a viable strategy for developing new antifungal drugs.
  • Further research into fungal sphingolipid metabolism is essential for advancing antifungal therapies.