Sendker, F.L.* ; Lo, Y.K.* ; Heimerl, T.* ; Bohn, S. ; Persson, L.J.* ; Mais, C.N.* ; Sadowska, W.* ; Paczia, N.* ; Nußbaum, E.* ; Del Carmen Sánchez Olmos, M.* ; Forchhammer, K.* ; Schindler, D.* ; Erb, T.J.* ; Benesch, J.L.P.* ; Marklund, E.G.* ; Bange, G.* ; Schuller, J.M.* ; Hochberg, G.K.A.*
Emergence of fractal geometries in the evolution of a metabolic enzyme.
Nature 628, 894-900 (2024)
Fractals are patterns that are self-similar across multiple length-scales1. Macroscopic fractals are common in nature2-4; however, so far, molecular assembly into fractals is restricted to synthetic systems5-12. Here we report the discovery of a natural protein, citrate synthase from the cyanobacterium Synechococcus elongatus, which self-assembles into Sierpiński triangles. Using cryo-electron microscopy, we reveal how the fractal assembles from a hexameric building block. Although different stimuli modulate the formation of fractal complexes and these complexes can regulate the enzymatic activity of citrate synthase in vitro, the fractal may not serve a physiological function in vivo. We use ancestral sequence reconstruction to retrace how the citrate synthase fractal evolved from non-fractal precursors, and the results suggest it may have emerged as a harmless evolutionary accident. Our findings expand the space of possible protein complexes and demonstrate that intricate and regulatable assemblies can evolve in a single substitution.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Cryo-em; Citrate Synthase; Phylogenetic Analysis; Sierpinski Triangles; Algorithms; Symmetry; Muscle; Forms
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2024
Prepublished im Jahr
0
HGF-Berichtsjahr
2024
ISSN (print) / ISBN
0028-0836
e-ISSN
1476-4687
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 628,
Heft: 8009,
Seiten: 894-900
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Nature Publishing Group
Verlagsort
London
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
Fakultät
Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Enabling and Novel Technologies
PSP-Element(e)
G-503000-001
Förderungen
ERC
European Union
International Max Planck Research School for Principles of Microbial Life
DFG
Leverhulme Trust
Swedish Research Council
Helmholtz Association
Max Planck Society
Copyright
Erfassungsdatum
2024-06-05