OCA at 09:30, 15 April 2026

2026-04-15T09:30:03Z

← Older revision		Revision as of 09:30, 15 April 2026
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	~~'''Unreleased structure'''~~

	~~The entry~~ 9sov is ~~ON HOLD until Paper~~ Publication		==CorZ in complex with SAH and myxarylin, Methyltransferase==
			<StructureSection load='9sov' size='340' side='right'caption='[[9sov]], [[Resolution\|resolution]] 2.70Å' scene=''>
			== Structural highlights ==
			<table><tr><td colspan='2'>[[9sov]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Corallococcus_coralloides Corallococcus coralloides]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=9SOV OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=9SOV FirstGlance]. <br>
			</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models\|Method:]]</b></td><td class="sblockDat" id="methodDat">X-ray diffraction, [[Resolution\|Resolution]] 2.7Å</td></tr>
			<tr id='ligand'><td class="sblockLbl"><b>[[Ligand\|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=A1JPI:(7~{S},10~{S},13~{S})-13-(methylamino)-10-(2-methylpropyl)-18-oxidanyl-9,12-bis(oxidanylidene)-2,4,8,11-tetrazatricyclo[13.3.1.1^{2,5}]icosa-1(19),3,5(20),15,17-pentaene-7-carboxylic+acid'>A1JPI</scene>, <scene name='pdbligand=SAH:S-ADENOSYL-L-HOMOCYSTEINE'>SAH</scene></td></tr>
			<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=9sov FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=9sov OCA], [https://pdbe.org/9sov PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=9sov RCSB], [https://www.ebi.ac.uk/pdbsum/9sov PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=9sov ProSAT]</span></td></tr>
			</table>
			<div style="background-color:#fffaf0;">
			== Publication Abstract from PubMed ==
			Biarylitides are a new class of ribosomally synthesized and post-translationally modified peptides (RiPPs) featuring the smallest reported precursor peptide and cytochrome P450-mediated cross-links. Here, we report the complete in vitro reconstitution of the myxobacterial biarylitide, myxarylin. We demonstrate that cross-linking is the first step and acts as a gatekeeper for downstream processing. The cytochrome P450 enzyme P450(BytO) from the myxarylin biosynthetic gene cluster exhibits remarkable substrate tolerance, allowing biosynthesis of new-to-nature thioamidated biarylitides through an unprecedented modular precursor peptide engineering approach. Surprisingly, changes in the precursor peptide sequence resulted in a shift in the installation of the P450(BytO)-mediated modification from the expected C- to the N-terminus. Leader peptide removal follows cross-linking and is likely carried out by a prolyl oligopeptidase (POP), a member of the serine protease family. The last step of the pathway involves N-terminal methylation, which also prevents premature degradation of the pathway intermediates by the POP. The crystal structure of the methyltransferase in complex with SAH and myxarylin allowed us to rationalize its substrate selectivity and guide protein engineering to expand its substrate scope.

	~~Authors~~: ~~Mueller~~, R., Sikandar, A.		Myxarylin: Total In Vitro Biosynthesis, Expansion of Substrate Scope, and Bioengineered Thioamidated Biarylitides.,Sikandar A, Vianey L, Schliessmann K, Shen Q, Mackay CL, Haeckl FPJ, Urlacher VB, Naismith JH, Muller R J Am Chem Soc. 2026 Feb 25;148(7):6970-6980. doi: 10.1021/jacs.5c17257. Epub 2026 , Feb 13. PMID:41687121<ref>PMID:41687121</ref>

	~~Description~~: ~~CorZ in complex with SAH and myxarylin, Methyltransferase~~		From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.<br>
	[[Category: ~~Unreleased~~ Structures]]		</div>
	[[Category: Mueller, R]]		<div class="pdbe-citations 9sov" style="background-color:#fffaf0;"></div>
	[[Category: Sikandar, A]]		== References ==
			<references/>
			__TOC__
			</StructureSection>
			[[Category: Corallococcus coralloides]]
			[[Category: Large Structures]]
			[[Category: Mueller R]]
			[[Category: Sikandar A]]

OCA: Protected "9sov" [edit=sysop:move=sysop]

2025-09-24T04:29:31Z

Protected "9sov" [edit=sysop:move=sysop]

← Older revision	Revision as of 04:29, 24 September 2025
(No difference)

OCA: New page: '''Unreleased structure''' The entry 9sov is ON HOLD until Paper Publication Authors: Mueller, R., Sikandar, A. Description: CorZ in complex with SAH and myxarylin, Methyltransferase [...

2025-09-24T04:29:30Z

New page: '''Unreleased structure''' The entry 9sov is ON HOLD until Paper Publication Authors: Mueller, R., Sikandar, A. Description: CorZ in complex with SAH and myxarylin, Methyltransferase [...

New page

'''Unreleased structure'''

The entry 9sov is ON HOLD until Paper Publication

Authors: Mueller, R., Sikandar, A.

Description: CorZ in complex with SAH and myxarylin, Methyltransferase
[[Category: Unreleased Structures]]
[[Category: Mueller, R]]
[[Category: Sikandar, A]]

9sov - Revision history

OCA at 09:30, 15 April 2026

OCA: Protected "9sov" [edit=sysop:move=sysop]

OCA: New page: '''Unreleased structure''' The entry 9sov is ON HOLD until Paper Publication Authors: Mueller, R., Sikandar, A. Description: CorZ in complex with SAH and myxarylin, Methyltransferase [...