Aquifex aeolicus	-	652558, 669855, 756707, 757192	
Aquifex aeolicus	in noncovalent association with aspartate transcarbamoylase, possible model for the mammalian polypeptide chain CPSase/ATCase/DHOase during pyrimidine biosynthesis	696352	
Aquifex aeolicus	type I enzyme	649180	
Arabidopsis thaliana	-	669854, 670191	
Aspergillus nidulans	-	246650	
Bacillus anthracis	-	718493, 756175	
Bacillus anthracis Sterne	-	756175	
Bacillus subtilis	-	670815	
Betapolyomavirus macacae	-	246629	
Cricetinae	-	172162, 1734, 246635, 246643, 246646, 246649, 667738