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Results 1 - 4 of 4
EC Number Natural Substrates Commentary (Nat. Sub.)
Show all pathways known for 5.1.1.4Display the word mapDisplay the reaction diagram Show all sequences 5.1.1.4L-Pro overexpression of TcPRAC leads to an increase in parasite differentiation into infective forms and its subsequent penetration into host cells. During infection of its mammalian host, the parasite secretes a proline racemase that contributes to parasite immune evasion by acting as a B-cell mitogen
Show all pathways known for 5.1.1.4Display the word mapDisplay the reaction diagram Show all sequences 5.1.1.4L-proline -
Show all pathways known for 5.1.1.4Display the word mapDisplay the reaction diagram Show all sequences 5.1.1.4L-proline the simplest mechanism for ProR isomerization of L-Pro to D-Pro entails the Cys130/Cys300 dyad in the thiolate/thiol forms, respectively, while His132 and Asp296 are in their neutral and carboxylate forms, in this scheme Cys130 is deprotonated either by a water molecule or an initially neutral form of the amine moiety of the substrate, thus, His132 and Asp296 do not serve a catalytic acid-base role in the racemization step but interact tightly with the ammonium moiety of the substrate, the ProR catalytic cycle involves 2 proton-transfer reactions in either direction of the racemization
Show all pathways known for 5.1.1.4Display the word mapDisplay the reaction diagram Show all sequences 5.1.1.4more a free and intact active site of the enzyme is necessary to allow mitogenicity
Results 1 - 4 of 4