ID   HUTH_ANAD2              Reviewed;         508 AA.
AC   B8J950;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   03-MAR-2009, sequence version 1.
DT   25-MAY-2022, entry version 66.
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}; OrderedLocusNames=A2cp1_2116;
OS   Anaeromyxobacter dehalogenans (strain 2CP-1 / ATCC BAA-258).
OC   Bacteria; Proteobacteria; Deltaproteobacteria; Myxococcales;
OC   Cystobacterineae; Anaeromyxobacteraceae; Anaeromyxobacter.
OX   NCBI_TaxID=455488;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=2CP-1 / ATCC BAA-258;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Saunders E., Brettin T., Detter J.C.,
RA   Han C., Larimer F., Land M., Hauser L., Kyrpides N., Ovchinnikova G.,
RA   Beliaev A.S., Richardson P.;
RT   "Complete sequence of Anaeromyxobacter dehalogenans 2CP-1.";
RL   Submitted (JAN-2009) to the EMBL/GenBank/DDBJ databases.
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; CP001359; ACL65456.1; -; Genomic_DNA.
DR   RefSeq; WP_012633308.1; NC_011891.1.
DR   AlphaFoldDB; B8J950; -.
DR   SMR; B8J950; -.
DR   EnsemblBacteria; ACL65456; ACL65456; A2cp1_2116.
DR   KEGG; acp:A2cp1_2116; -.
DR   HOGENOM; CLU_014801_4_0_7; -.
DR   OMA; CAPQVAG; -.
DR   UniPathway; UPA00379; UER00549.
DR   Proteomes; UP000007089; 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..508
FT                   /note="Histidine ammonia-lyase"
FT                   /id="PRO_1000125086"
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   508 AA;  53111 MW;  DDEAEECCD0318BFC CRC64;
     METLLLDGET LTLEQVRAVA TGAARAALAP AARERVRRSR ALVDARLEDG EAHYGINTGF
     GTLAEVRIPR ADLERLQRNL VLSHAAGVGA PLPLPEARAL VLLRANVLAK GVSGIREHTL
     DLLLAMLERG VVPVVPERGS VGASGDLAPL AHLALVLIGD GEAFLAPPGA AGRPERLPGG
     EALRRAGLEP VVLQPKEGLA LVNGTQAMAA VGTLALLRAE RLAALADLAG AMTLEGLLGS
     HRPFAPEIQA ARGQPGQIAA AAHLRALLAG SELNASHQGP GCHKVQDPYS LRCMPQVHGA
     ARDGIDFCRG VLAREVNAAT DNPLVFPDTG EIVSGGNFHG QPVALALDVL AVAASHLAAI
     SERRVEQLVN PSLSGLPPFL APQHGLNSGF MIAQVTSAAL VSENKVLCHP ASVDSIPSSA
     GREDHVSMGM TAALKARQVV ENVRTCLAIE LLVAAQALDL RAPLRPAQRV AEAHARLRER
     VPHLSEDRAL HRDIEAVSRL VDEGALEP