{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,9]],"date-time":"2026-01-09T12:28:59Z","timestamp":1767961739896,"version":"3.49.0"},"reference-count":33,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2001,6,1]],"date-time":"2001-06-01T00:00:00Z","timestamp":991353600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Lipids"],"published-print":{"date-parts":[[2001,6]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A detailed analysis of the lipids of spider silk is given for the first time. Extracts of the silk from the golden orb weaver, <jats:italic>Nephila clavipes<\/jats:italic>, were studied by gas chromatography, mass spectrometry, and chemical derivatizations. The major group of the lipids consisted of methyl\u2010branched 1\u2010methoxyalkanes (methyl ethers) with up to four methyl groups in the chain (chain length between C<jats:sub>28<\/jats:sub> and C<jats:sub>34<\/jats:sub>), which are unique to spiders. The position of the methyl branches was determined by conversion into cyanides, which allowed easy location of methyl branches. The second\u2010largest group included alkanes with a wide structural variety; 2\u2010methyl\u2010branched, even\u2010numbered hydrocarbons predominated. A general numerical method for the estimation of retention indices of alkanes and their derivatives is presented. Further components of the web included alkanols and alkanediols, fatty acids, and glyceryl ethers. Some comments on the biosynthesis of these compounds are also given.<\/jats:p>","DOI":"10.1007\/s11745-001-0768-7","type":"journal-article","created":{"date-parts":[[2006,11,15]],"date-time":"2006-11-15T19:08:45Z","timestamp":1163617725000},"page":"637-647","source":"Crossref","is-referenced-by-count":88,"title":["Composition of the silk lipids of the spider <i>Nephila clavipes<\/i>"],"prefix":"10.1002","volume":"36","author":[{"given":"Stefan","family":"Schulz","sequence":"first","affiliation":[{"name":"Institut f\u00fcr Organische Chemie Technische Universit\u00e4t Braunschweig Hagenring 30Braunschweig D\u201038106 Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2001,6]]},"reference":[{"key":"e_1_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.1038\/scientificamerican0392-70"},{"key":"e_1_2_2_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.199703141"},{"key":"e_1_2_2_4_1","volume-title":"Silk Polymers\u2014Materials Science and Biotechnology, ACS Symposium Series 544","author":"Kaplan D.L.","year":"1994"},{"key":"e_1_2_2_5_1","doi-asserted-by":"publisher","DOI":"10.1081\/MC-100101429"},{"key":"e_1_2_2_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0040-4020(01)80424-5"},{"key":"e_1_2_2_7_1","first-page":"1","volume-title":"Bioorganic Chemistry\u2014Highlights and New Aspects","author":"Schulz S.","year":"1999"},{"key":"e_1_2_2_8_1","doi-asserted-by":"crossref","unstructured":"Schulz S.(1997)Mass Spectrometric Determination of Methyl Group Positions in Long Chain Methyl Ethers and AlcoholsviaNitriles Chem. 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