Lucy Crouch
banner
lucyicm.bsky.social
Lucy Crouch
@lucyicm.bsky.social
🦠Scientist 🧪loves gut microbes and CAZymes.
Sir Henry Dale fellow at the IMI, University of Birmingham.
...opportunities always popping up across the College and wider Institute. Definitely get in touch with our HoD Prof Joan Geoghegan if you are interested
September 3, 2025 at 3:39 PM
I should also say, from a personal perspective, being in the Department of MIM is lovely - I have great colleagues and I find it to be a very positive environment. We have great grant writing support from each other and from the grant submission team. There are also loads of exciting...
September 3, 2025 at 3:39 PM
We screened several uncharacterised putative PNGases and discovered PNGaseL has very broad activity against N-glycans from mammalian, insect and plant-derived proteins. This enzyme has fantastic practical applications and is on sale at our industrial partner Ludger www.ludger.com/product-cata...
PNGase L
PNGase L
www.ludger.com
August 27, 2025 at 8:58 AM
Thanks Alex! we will consider your comments
July 18, 2025 at 6:55 PM
Hi Chris, for B.bifidum I can't see any putative high-mannose breakdown CAZymes, but other species do have these. There has been a characterisation in B. longum.
www.nature.com/articles/s41...
Mechanism of high-mannose N-glycan breakdown and metabolism by Bifidobacterium longum - Nature Chemical Biology
The human gut Bifidobacterium longum can use host N-glycans as carbon and energy sources via a specific and cooperative multienzymatic system.
www.nature.com
July 18, 2025 at 9:34 AM
We also generated a model for host glycan breakdown for Bifidobacterium bifidum based on this and previously published works.
July 18, 2025 at 8:52 AM
The structure reveals a C-shaped pocket that likely accommodates peptides and modelling of peptides into this pocket supports this hypothesis.
July 18, 2025 at 8:52 AM
Biochemical characterisation revealed that this enzyme has a preference for N-glycans attached to peptides rather than denatured or native proteins, which suggests that microbes with these enzymes target these types of glycoproteins for use as a nutrient source.
July 18, 2025 at 8:52 AM
Here we describe the first structure of a PNGaseA superfamily member. This structure has the canonical PNGase two β-sandwich catalytic module (pink/gold), but also a large unique β-sheet cradle (silver).
July 18, 2025 at 8:52 AM
If you would like to buy some from Ludger:
www.ludger.com/product-cata...
PNGase L
PNGase L
www.ludger.com
June 5, 2025 at 11:09 AM
Thanks very much Jose! I can't take credit for the title, it was an idea of one of the other amazing supervisors 😆
May 23, 2025 at 2:09 PM