Na+ controls hypoxic signalling by the mitochondrial respiratory chain

P Hernansanz-Agustín, C Choya-Foces… - Nature, 2020 - nature.com
All metazoans depend on the consumption of O2 by the mitochondrial oxidative
phosphorylation system (OXPHOS) to produce energy. In addition, the OXPHOS uses O2 to …

Fungal ribotoxins: molecular dissection of a family of natural killers

J Lacadena, E Álvarez-García… - FEMS microbiology …, 2007 - academic.oup.com
RNase T1 is the best known representative of a large family of ribonucleolytic proteins
secreted by fungi, mostly Aspergillus and Penicillium species. Ribotoxins stand out among …

Ageritin from pioppino mushroom: The prototype of ribotoxin-like proteins, a novel family of specific ribonucleases in edible mushrooms

S Ragucci, N Landi, R Russo, M Valletta, PV Pedone… - Toxins, 2021 - mdpi.com
Ageritin is a specific ribonuclease, extracted from the edible mushroom Cyclocybe aegerita
(synonym Agrocybe aegerita), which cleaves a single phosphodiester bond located within …

Nanobody-based EGFR-targeting immunotoxins for colorectal cancer treatment

J Narbona, L Hernández-Baraza, RG Gordo, L Sanz… - Biomolecules, 2023 - mdpi.com
Immunotoxins (ITXs) are chimeric molecules that combine the specificity of a targeting
domain, usually derived from an antibody, and the cytotoxic potency of a toxin, leading to the …

The ribotoxin-like protein Ostreatin from Pleurotus ostreatus fruiting bodies: Confirmation of a novel ribonuclease family expressed in basidiomycetes

N Landi, S Ragucci, R Russo, M Valletta… - International Journal of …, 2020 - Elsevier
Fungi produce several toxins active against plants, animal or humans. Among them,
ribotoxins are enzymes that specifically attack ribosomes irreparably compromising protein …

Three-dimensional structure of the actinoporin sticholysin I. Influence of long-distance effects on protein function

S García-Linares, I Castrillo, M Bruix… - Archives of biochemistry …, 2013 - Elsevier
Actinoporins are water-soluble proteins with the ability to form pores upon insertion into
biological membranes. They constitute a family of proteins with high degree of sequence …

Cleavage of the sarcin–ricin loop of 23S rRNA differentially affects EF-G and EF-Tu binding

L García-Ortega, E Álvarez-García… - Nucleic acids …, 2010 - academic.oup.com
Ribotoxins are potent inhibitors of protein biosynthesis and inactivate ribosomes from a
variety of organisms. The ribotoxin α-sarcin cleaves the large 23S ribosomal RNA (rRNA) at …

Production and characterization of a colon cancer-specific immunotoxin based on the fungal ribotoxin α-sarcin

N Carreras-Sangra, J Tomé-Amat… - … , Design & Selection, 2012 - academic.oup.com
A single-chain fusion protein that directed the cytolytic activity of α-sarcin to A33 tumor
antigen expressing cells was constructed and shown to effectively kill targeted cells …

A New Optimized Version of a Colorectal Cancer-Targeted Immunotoxin Based on a Non-Immunogenic Variant of the Ribotoxin α-Sarcin

J Narbona, RG Gordo, J Tomé-Amat, J Lacadena - Cancers, 2023 - mdpi.com
Simple Summary Antitumor therapy with immunotoxins is limited by problems of
immunogenicity and low efficacy in solid tumors. The different strategies to solve these …

Deletion of the NH2-terminal β-hairpin of the ribotoxin α-sarcin produces a nontoxic but active ribonuclease

L Garcıa-Ortega, M Masip, JM Mancheno… - Journal of Biological …, 2002 - ASBMB
Ribotoxins are a family of highly specific fungal ribonucleases that inactivate the ribosomes
by hydrolysis of a single phosphodiester bond of the 28 S rRNA. α-Sarcin, the best …