Exotoxins and Type III Cytotoxins – Bacterial Toxins
Über den Vortrag
Der Vortrag „Exotoxins and Type III Cytotoxins – Bacterial Toxins“ von Vincent Racaniello, PhD ist Bestandteil des Kurses „Year 1 – Semester 1 – Skin/Musculoskeletal System“. Der Vortrag ist dabei in folgende Kapitel unterteilt:
- Bacterial Toxins
- Bacterial Exotoxins
- Type III Cytotoxins
Quiz zum Vortrag
Which of the following is FALSE regarding exotoxins?
- They contain a secretory injection system.
- They are secreted by bacteria.
- Most of them have an AB structure.
- They often bind receptors on human cells.
- They break up in the cell cytoplasm, where they mediate cell damage.
What is the purpose of the secretory injection system in type III cytotoxins?
- To inject toxins directly into human cells
- To inactivate host cell receptors, allowing toxins to enter the cell directly
- To bind directly to host cell receptors to enter the cytoplasm
- To directly kill the host cell
How does the diphtheria toxin impede protein production in target cells?
- ADP ribosylation of eEF-2
- Increase of cAMP via adenylate cyclase activity
- Increase of ADP, which increases cAMP
- ADP ribosylation of adenylate cyclase
- Inactivation of eEF-2 via an increase in cAMP
Which of the following are neurotoxins?
- Botulinum and tetanus
- Anthrax and tetanus
- Anthrax and cholera
- Cholera and diphtheria
- Botulinum and anthrax
Which of the following pathogens does not employ type III cytotoxins?
- Anthrax
- Salmonella
- Shigella
- Pseudomonas
- Cholera
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Dozent des Vortrages Exotoxins and Type III Cytotoxins – Bacterial Toxins
Vincent Racaniello, PhD
Dr. Vincent Racaniello is a Higgins Professor of Microbiology and Immunology at Columbia University, in New York, USA.
He obtained his PhD at Mount Sinai School of Medicine, in New York City, in 1979 and joined the faculty of Columbia University in 1982.
Because of his achievements, he has received several awards, including the Irma T. Hirschl, Searle Scholars Program, Eli Lilly, and NIH Merit Awards. Dr. Racaniello is interested in using new media for medical education; he writes on his virology blog and hosts and produces several podcasts.
Within Lecturio, Dr. Racaniello teaches courses on Microbiology.
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Amazing stuff but doesnt differ the exotoxins into the four forms of them.
