Join Nostr
2026-09-22 05:37:56 UTC
in reply to

Greg Egan on Nostr: How does a single amino-acid substitution render the diphtheria toxin non-toxic? I ...

How does a single amino-acid substitution render the diphtheria toxin non-toxic?

https://pmc.ncbi.nlm.nih.gov/articles/PMC3325714/

I have only skimmed this paper, but the short answer seems to be that the two proteins fold into almost identical shapes, but CRM197 is more flexible at a crucial binding site.