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ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemical Diversity in the Sialic Acids and Related α-Keto Acids: An Evolutionary PerspectiveTakashi Angata and Ajit VarkiView Author Information Glycobiology Research and Training Center, Departments of Medicine and Cellular and Molecular Medicine, University of CaliforniaSan Diego, La Jolla, California 92093-0687 Cite this: Chem. Rev. 2002, 102, 2, 439–470Publication Date (Web):January 4, 2002Publication History Received19 July 2001Published online4 January 2002Published inissue 1 February 2002https://doi.org/10.1021/cr000407mCopyright © 2002 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views6815Altmetric-Citations970LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit Read OnlinePDF (340 KB) Get e-AlertscloseSupporting Info (2)»Supporting Information Supporting Information SUBJECTS:Bacteria,Carbohydrates,Genetics,Genomics,Peptides and proteins Get e-Alerts