{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,11]],"date-time":"2026-04-11T02:35:15Z","timestamp":1775874915522,"version":"3.50.1"},"reference-count":18,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2008,6,28]],"date-time":"2008-06-28T00:00:00Z","timestamp":1214611200000},"content-version":"vor","delay-in-days":12020,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["European Journal of Biochemistry"],"published-print":{"date-parts":[[1975,8]]},"abstract":"<jats:p> <jats:italic>N<\/jats:italic>\u2010Acetylneuraminic acid preparations from the urine of a patient with sialuria contain 1\u20142% of 2\u2010deoxy\u20102,3\u2010dehydro\u2010<jats:italic>N<\/jats:italic>\u2010acetylneuraminic acid. This new human sialic acid was isolated by ion\u2010exchange and partition chromatography. The structure has been elucidated by mass spectrometry and confirmed by comparison with the synthetic compound. The properties of this unsaturated sialic acid in the orcinol\/Fe<jats:sup>3+<\/jats:sup>\/HCl and the periodic acid\/thiobarbituric acid tests as well as in thin\u2010layer and gas\u2010liquid chromatography are described. It does not react with acylneuraminate pyruvate\u2010lyase. The origin of this new human sialic acid is discussed.<\/jats:p>","DOI":"10.1111\/j.1432-1033.1975.tb02228.x","type":"journal-article","created":{"date-parts":[[2005,3,3]],"date-time":"2005-03-03T16:07:12Z","timestamp":1109866032000},"page":"253-258","source":"Crossref","is-referenced-by-count":47,"title":["Isolation and Identification of 2\u2010Deoxy\u20102,3\u2010dehydro\u2010<i>N<\/i>\u2010Acetylneuraminic Acid from the Urine of a Patient with Sialuria"],"prefix":"10.1111","volume":"56","author":[{"given":"Johannis P.","family":"KAMERLING","sequence":"first","affiliation":[]},{"given":"Johannes F. 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