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HUTH_XANCB
ID   HUTH_XANCB              Reviewed;         513 AA.
AC   B0RUX3;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 72.
DE   RecName: Full=Histidine ammonia-lyase {ECO:0000255|HAMAP-Rule:MF_00229};
DE            Short=Histidase {ECO:0000255|HAMAP-Rule:MF_00229};
DE            EC=4.3.1.3 {ECO:0000255|HAMAP-Rule:MF_00229};
GN   Name=hutH {ECO:0000255|HAMAP-Rule:MF_00229};
GN   OrderedLocusNames=xcc-b100_2681;
OS   Xanthomonas campestris pv. campestris (strain B100).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Xanthomonadales;
OC   Xanthomonadaceae; Xanthomonas.
OX   NCBI_TaxID=509169;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=B100;
RX   PubMed=18304669; DOI=10.1016/j.jbiotec.2007.12.013;
RA   Vorhoelter F.-J., Schneiker S., Goesmann A., Krause L., Bekel T.,
RA   Kaiser O., Linke B., Patschkowski T., Rueckert C., Schmid J., Sidhu V.K.,
RA   Sieber V., Tauch A., Watt S.A., Weisshaar B., Becker A., Niehaus K.,
RA   Puehler A.;
RT   "The genome of Xanthomonas campestris pv. campestris B100 and its use for
RT   the reconstruction of metabolic pathways involved in xanthan
RT   biosynthesis.";
RL   J. Biotechnol. 134:33-45(2008).
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         Evidence={ECO:0000255|HAMAP-Rule:MF_00229};
CC   -!- PATHWAY: Amino-acid degradation; L-histidine degradation into L-
CC       glutamate; N-formimidoyl-L-glutamate from L-histidine: step 1/3.
CC       {ECO:0000255|HAMAP-Rule:MF_00229}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00229}.
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. {ECO:0000255|HAMAP-Rule:MF_00229}.
CC   -!- SIMILARITY: Belongs to the PAL/histidase family. {ECO:0000255|HAMAP-
CC       Rule:MF_00229}.
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DR   EMBL; AM920689; CAP52042.1; -; Genomic_DNA.
DR   AlphaFoldDB; B0RUX3; -.
DR   SMR; B0RUX3; -.
DR   KEGG; xca:xcc-b100_2681; -.
DR   HOGENOM; CLU_014801_4_0_6; -.
DR   OMA; CAPQVAG; -.
DR   UniPathway; UPA00379; UER00549.
DR   Proteomes; UP000001188; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0004397; F:histidine ammonia-lyase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0019556; P:histidine catabolic process to glutamate and formamide; IEA:UniProtKB-UniPathway.
DR   GO; GO:0019557; P:histidine catabolic process to glutamate and formate; IEA:UniProtKB-UniPathway.
DR   CDD; cd00332; PAL-HAL; 1.
DR   Gene3D; 1.10.275.10; -; 1.
DR   HAMAP; MF_00229; His_ammonia_lyase; 1.
DR   InterPro; IPR001106; Aromatic_Lyase.
DR   InterPro; IPR024083; Fumarase/histidase_N.
DR   InterPro; IPR005921; HutH.
DR   InterPro; IPR008948; L-Aspartase-like.
DR   InterPro; IPR022313; Phe/His_NH3-lyase_AS.
DR   PANTHER; PTHR10362; PTHR10362; 1.
DR   Pfam; PF00221; Lyase_aromatic; 1.
DR   SUPFAM; SSF48557; SSF48557; 1.
DR   TIGRFAMs; TIGR01225; hutH; 1.
DR   PROSITE; PS00488; PAL_HISTIDASE; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Histidine metabolism; Lyase.
FT   CHAIN           1..513
FT                   /note="Histidine ammonia-lyase"
FT                   /id="PRO_1000100457"
FT   MOD_RES         144
FT                   /note="2,3-didehydroalanine (Ser)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00229"
FT   CROSSLNK        143..145
FT                   /note="5-imidazolinone (Ala-Gly)"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00229"
SQ   SEQUENCE   513 AA;  53125 MW;  912B61D86B6DEA81 CRC64;
     MSASVVLQPG QVTLAQWRAL YRGAEVTLDP ACAQAVLRSA QTVEAIVARG EPVYGVNTGF
     GKLASVRIER DDLQTLQRNI VLSHAAGVGD PTPVPVVRLM MALKLTSLAQ GASGIQPDTL
     ALLEAMLRQG ITPVVPCQGS VGASGDLAPL SHLAAVMIGV GEAFVGDQRL PAADALARAQ
     LQPRVLGAKE GLALLNGTQF STACALAGLF EIETVLQAAL VTGALSVEAA KGSDTPFDAR
     IHALRGQPGQ IATAAALRAL MAESAIRESH RLGDVRVQDP YCLRCQPQVM GAALDVMRQA
     ARTLEIEANG VSDNPLVFSD TGEALSGGNF HAEPVAFAAD MLALAVCEIG SISERRTAML
     VDPALSGLPA FLTPRPGLNS GFMIPQVTAA ALVSENKQCA YPASVDSIPT SANQEDHVSM
     AAHGARRLLA MADNAAHVIG IELLAAVQGC DFHAPLRSSA ALEAARALLR AQVPTLQDDR
     YFHPDMLAAS ALVRSGALAT AVGIVLPGVE LSA
 
 
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