IMM events :
The Institut de Microbiologie de la Méditerranée (IMM) organises scientific seminars for researchers every Friday at 11.30am.
These seminars are announced in the Institute’s diary.
The seminar organising committee is made up of :
– Bénédicte BURLAT, researcher at BIP
– Isabelle IMBERT, teacher-researcher at LISM
– Vladimir PELICIC, researcher at the LCB
– Hugo BISIO, researcher at IGS
Seminar information :
– Frequency: Every Friday
– Time: 11.30 a.m.
– Accessibility: These events are not open to the general public. For open events, please consult the public events page.
List of Seminars:
Below is the list of scientific seminars scheduled for the coming month.
If you have any questions or require further information, please do not hesitate to contact the organising committee: seminaires@imm.cnrs.fr
Yangqi Gu (invited by Chantal Abergel, IGS)
Yangqi Gu (invited by Chantal Abergel, IGS), Medical Research Council, Laboratory of Molecular Biology, Cambridge UK
“The Trinity of extracellular electron transfer in Geobacter”
“Geobacter sulfurreducens is an environmentally important bacterium which attracts a huge interest due to its extraordinary ability of generating bioelectricity.
The bacterium produces protein filaments, called “nanowires” to engage extracellular electron transfer (EET), which is the key to generate bioelectricity. However, the identity is hotly debated in the field and the molecular basis for such bacterial nanowires remains unveiled.
My work used cryo-EM combined with other biochemical and biophysical approaches to understand the molecular basis for Geobacter nanowires.
My work showed that in contrast to the previously hypothesized type IV pili, Geobacter nanowires are made of polymerized multi-heme cytochromes, namely OmcS and OmcZ, and the closely stacked hemes form a conductive channel for efficient electron transfer. My work provides a detailed understanding of Geobacter nanowires and an alternative hypothesis to explain the electrical conduction between bacteria.”
Best,
Yangqi