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324965 occurrences (No.62 in the rank) during 5 years in the PubMed. [cache]
384) Biochemical analysis revealed that, in contrast to other RiPPs, the core region of the plesiocin precursor peptide noticeably enhanced the enzyme-precursor interaction via the conserved glutamate residues.
* Molecular mechanism underlying substrate recognition of the peptide macrocyclase PsnB.
- Graspetides, also known as ω-ester-containing peptides (OEPs), are a family of ribosomally synthesized and post-translationally modified peptides (RiPPs) bearing side chain-to-side chain macrolactone or macrolactam linkages. Here, we present the molecular details of precursor peptide recognition by the macrocyclase enzyme PsnB in the biosynthesis of plesiocin, a group 2 graspetide. Biochemical analysis revealed that, in contrast to other RiPPs, the core region of the plesiocin precursor peptide noticeably enhanced the enzyme-precursor interaction via the conserved glutamate residues. We obtained four crystal structures of symmetric or asymmetric PsnB dimers, including those with a bound core peptide and a nucleotide, and suggest that the highly conserved Arg213 at the enzyme active site specifically recognizes a ring-forming acidic residue before phosphorylation. Collectively, this study provides insights into the mechanism underlying substrate recognition in graspetide biosynthesis and lays a foundation for engineering new variants.
Overview of verb reveal
The verb reveal has 3 senses (first 2 from tagged texts)
1. (34) uncover, bring out, unveil, reveal -- (make visible; "Summer brings out bright clothes"; "He
brings out the best in her")
2. (17) unwrap, disclose, let on, bring out, reveal, discover, expose, divulge, break, give away,
let out -- (make known to the public information that was previously known only to a few people or
that was meant to be kept a secret; "The auction house would not disclose the price at which the van
Gogh had sold"; "The actress won't reveal how old she is"; "bring out the truth"; "he broke the news
to her"; "unwrap the evidence in the murder case")
3. reveal -- (disclose directly or through prophets; "God rarely reveal his plans for Mankind")
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