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5.1.99.3	748459	 Reaction mechanism and catalytic fingerprint of allantoin racemase	J. Phys. Chem. B	 118	 7457-7466 	2014	Klebsiella pneumoniae subsp. pneumoniae ATCC 700721	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=24914486&form=6&db=m	
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5.1.99.3	747111	 The structure and function of a microbial allantoin racemase reveal the origin and conservation of a catalytic mechanism	Biochemistry	 55	 6421-6432 	2016	Pseudomonas fluorescens DSM 50090	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=27797489&form=6&db=m	
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5.1.99.3	2445	Allantoin racemase: a new enzyme from Pseudomonas species	Biochim. Biophys. Acta	391	240-248	1975	Pseudomonas putida	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=237557&form=6&db=m	
5.1.99.3	2445	Allantoin racemase: a new enzyme from Pseudomonas species	Biochim. Biophys. Acta	391	240-248	1975	Pseudomonas fluorescens	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=237557&form=6&db=m	
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5.1.99.3	715939	Characterization of the structure and function of Klebsiella pneumoniae allantoin racemase	J. Mol. Biol.	410	447-460	2011	Klebsiella pneumoniae subsp. pneumoniae MGH78578	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=21616082&form=6&db=m	
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5.1.99.3	692892	Purine utilization by Klebsiella oxytoca M5al: genes for ring-oxidizing and -opening enzymes	J. Bacteriol.	191	1006-1017	2008	Klebsiella michiganensis M5al	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=19060149&form=6&db=m	
5.1.99.3	692892	Purine utilization by Klebsiella oxytoca M5al: genes for ring-oxidizing and -opening enzymes	J. Bacteriol.	191	1006-1017	2008	Klebsiella oxytoca M5al	http://www.ncbi.nlm.nih.gov/htbin-post/Entrez/query?uid=19060149&form=6&db=m