<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-06-17T21:25:42Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/11297" metadataPrefix="mods">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/11297</identifier><datestamp>2026-01-28T01:05:45Z</datestamp><setSpec>com_10259_4862</setSpec><setSpec>com_10259_5086</setSpec><setSpec>com_10259_2604</setSpec><setSpec>col_10259_9974</setSpec></header><metadata><mods:mods xmlns:mods="http://www.loc.gov/mods/v3" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-1.xsd">
<mods:name>
<mods:namePart>Aparicio Fernández, Jesús Manuel</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>Mendes, Marta V.</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>Antón Fidalgo, Nuria</mods:namePart>
</mods:name>
<mods:name>
<mods:namePart>Martín Martín, Juan Francisco</mods:namePart>
</mods:name>
<mods:extension>
<mods:dateAvailable encoding="iso8601">2026-01-27T12:59:49Z</mods:dateAvailable>
</mods:extension>
<mods:extension>
<mods:dateAccessioned encoding="iso8601">2026-01-27T12:59:49Z</mods:dateAccessioned>
</mods:extension>
<mods:originInfo>
<mods:dateIssued encoding="iso8601">2002</mods:dateIssued>
</mods:originInfo>
<mods:identifier type="isbn">81-7736-113-9</mods:identifier>
<mods:identifier type="isbn">9788177361131</mods:identifier>
<mods:identifier type="uri">https://hdl.handle.net/10259/11297</mods:identifier>
<mods:abstract>Macrolides constitute a large class of natural&#xd;
metabolites produced by giant multifunctional&#xd;
enzymes in a process resembling fatty acid&#xd;
biosynthesis. Like f atty acids, macrolides and other&#xd;
polyketides are assernbled by decarboxylative&#xd;
condensations of simple carboxylic acids. But while&#xd;
fatty acid intermediates are fully reduced, macrolide&#xd;
and other polyketide intermediates suffer the&#xd;
suppression of reduction or dehydration reactions at&#xd;
given biosynthetic steps. In the last years much&#xd;
progress has 'been made in our understanding of the&#xd;
linear and modular organisation of the gene clusters,&#xd;
and the enzymes encoded by them, responsiblefor...</mods:abstract>
<mods:language>
<mods:languageTerm>eng</mods:languageTerm>
</mods:language>
<mods:accessCondition type="useAndReproduction">info:eu-repo/semantics/closedAccess</mods:accessCondition>
<mods:titleInfo>
<mods:title>Biosynthetic rules for marcrolide construction</mods:title>
</mods:titleInfo>
<mods:genre>info:eu-repo/semantics/bookPart</mods:genre>
</mods:mods></metadata></record></GetRecord></OAI-PMH>