AC MF_00229; DC Protein; auto TR HAMAP; MF_00229; -; 1; level=0 XX Names: His_ammonia_lyase XX ID HUTH case DE RecName: Full=Histidine ammonia-lyase; DE Short=Histidase; DE EC=4.3.1.3; end case case DE RecName: Full=Probable histidine ammonia-lyase; DE Short=Histidase; DE EC=4.3.1.3; end case GN Name=hutH; XX CC -!- CATALYTIC ACTIVITY: CC Reaction=L-histidine = NH4(+) + trans-urocanate; Xref=Rhea:RHEA:21232, CC ChEBI:CHEBI:17771, ChEBI:CHEBI:28938, ChEBI:CHEBI:57595; EC=4.3.1.3; CC -!- PATHWAY: Amino-acid degradation; L-histidine degradation into L- CC glutamate; N-formimidoyl-L-glutamate from L-histidine: step 1/3. CC -!- SUBCELLULAR LOCATION: Cytoplasm. case CC -!- PTM: Contains an active site 4-methylidene-imidazol-5-one (MIO), which CC is formed autocatalytically by cyclization and dehydration of residues CC Ala-Ser-Gly. end case case CC -!- PTM: Contains an active site 4-methylidene-imidazol-5-one (MIO), which CC is formed autocatalytically by cyclization and dehydration of residues CC Cys-Ser-Gly. end case case CC -!- PTM: Contains an active site 4-methylidene-imidazol-5-one (MIO), which CC is formed autocatalytically by cyclization and dehydration of residues CC Ser-Ser-Gly. end case CC -!- SIMILARITY: Belongs to the PAL/histidase family. XX DR Pfam; PF00221; Lyase_aromatic; 1; trigger=no DR NCBIfam; TIGR01225; HutH; 1; trigger=no DR PROSITE; PS00488; PAL_HISTIDASE; 1; trigger=no XX KW Cytoplasm KW Lyase KW Histidine metabolism XX GO GO:0004397; F:histidine ammonia-lyase activity GO GO:0006548; P:histidine catabolic process GO GO:0005737; C:cytoplasm XX FT From: HUTH_PSEPU (P21310) FT MOD_RES 144 FT /note="2,3-didehydroalanine (Ser)" FT Condition: S FT CROSSLNK 143..145 FT /note="5-imidazolinone (Ala-Gly)" FT Condition: [CSA]-S-G XX Size: 495-525; Related: None; Template: P21310; Scope: Bacteria Archaea Fusion: Nter: MF_00372 (hutI) Cter: None Duplicate: in FUSNN Plasmid: in AGRRH, RHIME Comments: None XX # Revision 1.34 2023/06/01 //