ID   HEM3_THEAC              Reviewed;         295 AA.
AC   Q9HKM5;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2001, sequence version 1.
DT   25-MAY-2022, entry version 116.
DE   RecName: Full=Probable porphobilinogen deaminase;
DE            Short=PBG;
DE            EC=2.5.1.61;
DE   AltName: Full=Hydroxymethylbilane synthase;
DE            Short=HMBS;
DE   AltName: Full=Pre-uroporphyrinogen synthase;
GN   Name=hemC; OrderedLocusNames=Ta0572;
OS   Thermoplasma acidophilum (strain ATCC 25905 / DSM 1728 / JCM 9062 / NBRC
OS   15155 / AMRC-C165).
OC   Archaea; Candidatus Thermoplasmatota; Thermoplasmata; Thermoplasmatales;
OC   Thermoplasmataceae; Thermoplasma.
OX   NCBI_TaxID=273075;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25905 / DSM 1728 / JCM 9062 / NBRC 15155 / AMRC-C165;
RX   PubMed=11029001; DOI=10.1038/35035069;
RA   Ruepp A., Graml W., Santos-Martinez M.-L., Koretke K.K., Volker C.,
RA   Mewes H.-W., Frishman D., Stocker S., Lupas A.N., Baumeister W.;
RT   "The genome sequence of the thermoacidophilic scavenger Thermoplasma
RT   acidophilum.";
RL   Nature 407:508-513(2000).
CC   -!- FUNCTION: Tetrapolymerization of the monopyrrole PBG into the
CC       hydroxymethylbilane pre-uroporphyrinogen in several discrete steps.
CC       {ECO:0000250}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + 4 porphobilinogen = hydroxymethylbilane + 4 NH4(+);
CC         Xref=Rhea:RHEA:13185, ChEBI:CHEBI:15377, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:57845, ChEBI:CHEBI:58126; EC=2.5.1.61;
CC   -!- COFACTOR:
CC       Name=dipyrromethane; Xref=ChEBI:CHEBI:60342; Evidence={ECO:0000250};
CC       Note=Binds 1 dipyrromethane group covalently. {ECO:0000250};
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; protoporphyrin-IX
CC       biosynthesis; coproporphyrinogen-III from 5-aminolevulinate: step 2/4.
CC   -!- MISCELLANEOUS: The porphobilinogen subunits are added to the
CC       dipyrromethane group. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the HMBS family. {ECO:0000305}.
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DR   EMBL; AL445064; CAC11712.1; -; Genomic_DNA.
DR   RefSeq; WP_010900997.1; NC_002578.1.
DR   AlphaFoldDB; Q9HKM5; -.
DR   SMR; Q9HKM5; -.
DR   STRING; 273075.Ta0572; -.
DR   EnsemblBacteria; CAC11712; CAC11712; CAC11712.
DR   GeneID; 1456162; -.
DR   KEGG; tac:Ta0572; -.
DR   eggNOG; arCOG04299; Archaea.
DR   HOGENOM; CLU_019704_1_0_2; -.
DR   OMA; LWQANHI; -.
DR   OrthoDB; 95523at2157; -.
DR   UniPathway; UPA00251; UER00319.
DR   Proteomes; UP000001024; Chromosome.
DR   GO; GO:0004418; F:hydroxymethylbilane synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0018160; P:peptidyl-pyrromethane cofactor linkage; IEA:InterPro.
DR   GO; GO:0006782; P:protoporphyrinogen IX biosynthetic process; IEA:UniProtKB-UniPathway.
DR   Gene3D; 3.30.160.40; -; 1.
DR   HAMAP; MF_00260; Porphobil_deam; 1.
DR   InterPro; IPR000860; HemC.
DR   InterPro; IPR022419; Porphobilin_deaminase_cofac_BS.
DR   InterPro; IPR022417; Porphobilin_deaminase_N.
DR   InterPro; IPR022418; Porphobilinogen_deaminase_C.
DR   InterPro; IPR036803; Porphobilinogen_deaminase_C_sf.
DR   PANTHER; PTHR11557; PTHR11557; 1.
DR   Pfam; PF01379; Porphobil_deam; 1.
DR   Pfam; PF03900; Porphobil_deamC; 1.
DR   PIRSF; PIRSF001438; 4pyrrol_synth_OHMeBilane_synth; 1.
DR   PRINTS; PR00151; PORPHBDMNASE.
DR   SUPFAM; SSF54782; SSF54782; 1.
DR   TIGRFAMs; TIGR00212; hemC; 1.
DR   PROSITE; PS00533; PORPHOBILINOGEN_DEAM; 1.
PE   3: Inferred from homology;
KW   Porphyrin biosynthesis; Reference proteome; Transferase.
FT   CHAIN           1..295
FT                   /note="Probable porphobilinogen deaminase"
FT                   /id="PRO_0000143032"
FT   MOD_RES         234
FT                   /note="S-(dipyrrolylmethanemethyl)cysteine"
FT                   /evidence="ECO:0000250"
SQ   SEQUENCE   295 AA;  32775 MW;  E25EE90441ACBF3F CRC64;
     MITIRIGTRP SRLAVRQAEI VASAIRHAGY EVEIVKYRSE GDSDLKSPLY SIGKTGVFVE
     RLNSLILSGD IDAAVHSAKD IPYEIDRRLR ISAVMPRGRF EDALVSENPL SKLPPGSVIG
     TSSLRRRYQI LYQRKDVKVS NIRGNVDTRI EKMRSEGMAG IVMALAAIDR LELNLRYWPF
     DPEKFVPAPN QGIIAVVSED GSKASEVLSS INDADTYDDM MAERSITQGL KLGCSTPVGI
     LSRHTGKGMR ILAQFFAMDG SDMMMFDQHV DGLDDVDGIV SYIRENLPEE YGYKL