2IPO:
reference: Use of L-asparagine and N-phosphonacetyl-L-asparagine to investigate the linkage of catalysis and homotropic cooperativity in E. coli aspartate transcarbomoylase., Cardia JP, Eldo J, Xia J, O'Day EM, Tsuruta H, Gryncel KR, Kantrowitz ER, Proteins. 2008 May 15;71(3):1088-96. PMID: 18004787

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