Clostridial C3 toxins target monocytes/macrophages and modulate their functions

H Barth, S Fischer, A Möglich, C Förtsch - Frontiers in Immunology, 2015 - frontiersin.org
The C3 enzymes from Clostridium (C.) botulinum (C3bot) and Clostridium limosum (C3lim)
are single chain protein toxins of about 25 kDa that mono-ADP-ribosylate Rho-A,-B, and-C …

Clostridial C3 toxins enter and intoxicate human dendritic cells

M Fellermann, C Huchler, L Fechter, T Kolb… - Toxins, 2020 - mdpi.com
C3 protein toxins produced by Clostridium (C.) botulinum and C. limosum are mono-ADP-
ribosyltransferases, which specifically modify the GTPases Rho A/B/C in the cytosol of …

[HTML][HTML] The pore-forming subunit C2IIa of the binary Clostridium botulinum C2 Toxin reduces the chemotactic translocation of human polymorphonuclear leukocytes

J Eisele, S Schreiner, J Borho, S Fischer… - Frontiers in …, 2022 - frontiersin.org
The binary C2 toxin of Clostridium (C.) botulinum consists of two non-linked proteins, the
enzyme subunit C2I and the separate binding/transport subunit C2II. To exhibit toxic effects …

Rho-inhibiting C2IN-C3 fusion toxin inhibits chemotactic recruitment of human monocytes ex vivo and in mice in vivo

T Martin, A Möglich, I Felix, C Förtsch, A Rittlinger… - Archives of …, 2018 - Springer
Bacterial protein toxins became valuable molecular tools for the targeted modulation of cell
functions in experimental pharmacology and attractive therapeutics because of their potent …

Selective and specific internalization of clostridial C3 ADP‐ribosyltransferases into macrophages and monocytes

J Fahrer, J Kuban, K Heine, G Rupps… - Cellular …, 2010 - Wiley Online Library
The C3 transferases from Clostridium botulinum (C3bot) and Clostridium limosum (C3lim)
mono‐ADP‐ribosylate and thereby inactivate RhoA,‐B and‐C of eukaryotic cells. Due to …

Formation of a Biologically Active Toxin Complex of the Binary Clostridium botulinum C2 Toxin without Cell Membrane Interaction

E Kaiser, G Haug, M Hliscs, K Aktories, H Barth - Biochemistry, 2006 - ACS Publications
Clostridium botulinum produces a binary toxin, which is composed of two separate proteins.
The enzyme component, C2I, is an ADP-ribosyltransferase which modifies G-actin of …

[HTML][HTML] Uptake of Clostridium botulinum C3 exoenzyme into intact HT22 and J774A. 1 cells

A Rohrbeck, L Von Elsner, S Hagemann, I Just - Toxins, 2015 - mdpi.com
The Clostridium botulinum C3 exoenzyme selectively ADP-ribosylates low molecular weight
GTP-binding proteins RhoA, B and C. This covalent modification inhibits Rho signaling …

The C Terminus of Component C2II ofClostridium botulinum C2 Toxin Is Essential for Receptor Binding

D Blöcker, H Barth, E Maier, R Benz… - Infection and …, 2000 - Am Soc Microbiol
The binary Clostridium botulinum C2 toxin consists of two separate proteins, the binding
component C2II (80.5 kDa) and the actin-ADP-ribosylating enzyme component C2I (49.4 …

A recombinant fusion toxin based on enzymatic inactive C3bot1 selectively targets macrophages

L Dmochewitz, C Förtsch, C Zwerger, M Vaeth… - PLoS …, 2013 - journals.plos.org
Background The C3bot1 protein (∼ 23 kDa) from Clostridium botulinum ADP-ribosylates
and thereby inactivates Rho. C3bot1 is selectively taken up into the cytosol of monocytes …

Clostridium Botulinum C3 Exoenzyme and C3-Like Transferases

K Aktories, H Barth, I Just - Bacterial Protein Toxins, 2000 - Springer
Clostridium botulinum adenosine diphosphate (ADP)—ribosyltransferase C3 was the first
bacterial exoenzyme/toxin found to act on small guanosine triphosphate (GTP) ases of the …