» Articles » PMID: 22819216

Structures of Lysenin Reveal a Shared Evolutionary Origin for Pore-forming Proteins and Its Mode of Sphingomyelin Recognition

Abstract

Pore-forming proteins insert from solution into membranes to create lesions, undergoing a structural rearrangement often accompanied by oligomerization. Lysenin, a pore-forming toxin from the earthworm Eisenia fetida, specifically interacts with sphingomyelin (SM) and may confer innate immunity against parasites by attacking their membranes to form pores. SM has important roles in cell membranes and lysenin is a popular SM-labeling reagent. The structure of lysenin suggests common ancestry with other pore-forming proteins from a diverse set of eukaryotes and prokaryotes. The complex with SM shows the mode of its recognition by a protein in which both the phosphocholine headgroup and one acyl tail are specifically bound. Lipid interaction studies and assays using viable target cells confirm the functional reliance of lysenin on this form of SM recognition.

Citing Articles

The Molecular Architecture and Mode of Action of ε-Toxin.

Titball R Toxins (Basel). 2024; 16(4).

PMID: 38668605 PMC: 11053738. DOI: 10.3390/toxins16040180.


Hypo-Osmotic Stress and Pore-Forming Toxins Adjust the Lipid Order in Sheep Red Blood Cell Membranes.

Whiting R, Stanton S, Kucheriava M, Smith A, Pitts M, Robertson D Membranes (Basel). 2023; 13(7).

PMID: 37504986 PMC: 10385129. DOI: 10.3390/membranes13070620.


Story of Pore-Forming Proteins from Deadly Disease-Causing Agents to Modern Applications with Evolutionary Significance.

Gupta L, Molla J, Prabhu A Mol Biotechnol. 2023; 66(6):1327-1356.

PMID: 37294530 DOI: 10.1007/s12033-023-00776-1.


Lipids in Pathophysiology and Development of the Membrane Lipid Therapy: New Bioactive Lipids.

Torres M, Parets S, Fernandez-Diaz J, Beteta-Gobel R, Rodriguez-Lorca R, Roman R Membranes (Basel). 2021; 11(12).

PMID: 34940418 PMC: 8708953. DOI: 10.3390/membranes11120919.


The Natterin Proteins Diversity: A Review on Phylogeny, Structure, and Immune Function.

Lima C, Disner G, Falcao M, Seni-Silva A, Maleski A, Souza M Toxins (Basel). 2021; 13(8).

PMID: 34437409 PMC: 8402412. DOI: 10.3390/toxins13080538.


References
1.
Kiyokawa E, Makino A, Ishii K, Otsuka N, Yamaji-Hasegawa A, Kobayashi T . Recognition of sphingomyelin by lysenin and lysenin-related proteins. Biochemistry. 2004; 43(30):9766-73. DOI: 10.1021/bi049561j. View

2.
Schneider T, Sheldrick G . Substructure solution with SHELXD. Acta Crystallogr D Biol Crystallogr. 2002; 58(Pt 10 Pt 2):1772-9. DOI: 10.1107/s0907444902011678. View

3.
Bruhn H, Winkelmann J, Andersen C, Andra J, Leippe M . Dissection of the mechanisms of cytolytic and antibacterial activity of lysenin, a defence protein of the annelid Eisenia fetida. Dev Comp Immunol. 2006; 30(7):597-606. DOI: 10.1016/j.dci.2005.09.002. View

4.
Anderluh G, Lakey J . Disparate proteins use similar architectures to damage membranes. Trends Biochem Sci. 2008; 33(10):482-90. DOI: 10.1016/j.tibs.2008.07.004. View

5.
Riffel N, Harlos K, Iourin O, Rao Z, Kingsman A, Stuart D . Atomic resolution structure of Moloney murine leukemia virus matrix protein and its relationship to other retroviral matrix proteins. Structure. 2002; 10(12):1627-36. DOI: 10.1016/s0969-2126(02)00896-1. View