AC MF_00943; DC Protein; auto TR HAMAP; MF_00943; -; 1; level=0 XX Names: Maleate_isomerase XX ID MAIA DE RecName: Full=Maleate isomerase; DE EC=5.2.1.1; DE AltName: Full=Maleate cis-trans isomerase; GN Name=maiA; XX CC -!- FUNCTION: Catalyzes cis-trans isomerization of the C2-C3 double bond in CC maleate to yield fumarate. CC -!- CATALYTIC ACTIVITY: CC Reaction=maleate = fumarate; Xref=Rhea:RHEA:13169, ChEBI:CHEBI:29806, CC ChEBI:CHEBI:30780; EC=5.2.1.1; CC -!- SUBUNIT: Homodimer. CC -!- MISCELLANEOUS: Reaction is initiated by nucleophilic attack of cysteine CC at the double bond, yielding a covalent succinylcysteine-like CC intermediate. CC -!- SIMILARITY: Belongs to the maleate isomerase family. XX DR Pfam; PF17645; Amdase; 1; trigger=no DR PIRSF; PIRSF015736; MI; 1; trigger=no XX KW Isomerase XX GO GO:0050076; F:maleate isomerase activity XX FT From: MAIA_NOCFA (Q5YXQ1) FT BINDING 76..78 FT /ligand="substrate" FT Condition: C-x-V FT BINDING 195..196 FT /ligand="substrate" FT Condition: V-Q FT ACT_SITE 76 FT /note="Nucleophile" FT Condition: C FT ACT_SITE 194 FT /note="Proton donor" FT Condition: C FT BINDING 14 FT /ligand="substrate" FT Condition: N FT BINDING 133 FT /ligand="substrate" FT Condition: Y FT BINDING 163 FT /ligand="substrate" FT Condition: N FT MOD_RES 76 FT /note="S-(2-succinyl)cysteine" FT Condition: C XX Size: 233-282; Related: None; Template: Q5YXQ1; O24766; Q9WX57; Q88FY4; Scope: Bacteria Fusion: Nter: None Cter: None Duplicate: None Plasmid: None Comments: None XX # Revision 1.7 2022/05/14 //