Bruce Lichtenstein
Bruce Lichtenstein
@lichtenstein.bsky.social
Biophysical chemist and Protein Designer. I like making new molecules do new things.
Group leader at the Centre for Enzyme Innovation at the University of Portsmouth.
Reposted by Bruce Lichtenstein
If you use Boltz1/2, BioEmu, Chai1, or other MSA-dependent models, you’re likely using our ColabFold server. Please be considerate! Avoid large submissions across many IPs instead generate the MSA locally. Our server is an old-timer from 2014 and can’t handle that load.
August 15, 2025 at 5:48 PM
FreePMC articles… (mostly) no longer available outside the US.
July 1, 2025 at 3:51 PM
A hill I will die upon: coriander has basically no taste, sub-herbaceous if I had to decide, so it tastes neither like citrus or soap; thus everyone is wrong.
April 20, 2025 at 6:49 PM
Due process is the bedrock of any functioning judicial system. Just the act of carving exceptions ends any value or faith in the rule of law. The US democracy is teetering and we are ill equipped for the power vacuum that will follow.
April 14, 2025 at 9:46 PM
Experimental validation of protein design models is critical, but what is perhaps more critical is doing so across research teams and lab environments. Same goes for beta testing the algorithms as well. The statistics of success, prior to release, should incorporate elements of usability.
April 7, 2025 at 5:14 PM
Reposted by Bruce Lichtenstein
'No one can expect individual scientists to make a stand, at professional and even personal danger (even though some are doing so),' writes Philip Ball. 'But prudence cannot mean timidity, nor can it risk looking like it.'
Scientific institutions have a long history of anticipatory obedience
Societies should learn from this and speak up to support inclusion
www.chemistryworld.com
February 9, 2025 at 10:00 AM
Substrate morphological preference in plastic depolymerases is poorly understood, but manipulating the surface charge of a highly active PETase, we were able to invert the preference, improve hydrolyitic activity, and discover a new mechanism for synergy along the way.

doi.org/10.1101/2025...
Engineering surface electrostatics affords control over morphological preference, synergy, and activity in polymer degrading enzymes
The biocatalytic recycling of plastics, such as polyethylene terephthalate (PET), promises a sustainable alternative to our present open-loop cycles. Engineering of PET-hydrolases for this purpose has...
doi.org
January 7, 2025 at 9:59 AM
Perhaps at the moment, only a thought experiment, but would structure prediction training benefit from a more judicious selection of structured elements from PDBs; e.g. intentionally avoiding using structural elements supporting non-biological, crystal contacts.
November 28, 2024 at 11:43 AM