ID   HEM3_BAUCH              Reviewed;         311 AA.
AC   Q1LU25;
DT   11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Porphobilinogen deaminase {ECO:0000255|HAMAP-Rule:MF_00260};
DE            Short=PBG {ECO:0000255|HAMAP-Rule:MF_00260};
DE            EC=2.5.1.61 {ECO:0000255|HAMAP-Rule:MF_00260};
DE   AltName: Full=Hydroxymethylbilane synthase {ECO:0000255|HAMAP-Rule:MF_00260};
DE            Short=HMBS {ECO:0000255|HAMAP-Rule:MF_00260};
DE   AltName: Full=Pre-uroporphyrinogen synthase {ECO:0000255|HAMAP-Rule:MF_00260};
GN   Name=hemC {ECO:0000255|HAMAP-Rule:MF_00260}; OrderedLocusNames=BCI_0061;
OS   Baumannia cicadellinicola subsp. Homalodisca coagulata.
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Candidatus Baumannia.
OX   NCBI_TaxID=374463;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16729848; DOI=10.1371/journal.pbio.0040188;
RA   Wu D., Daugherty S.C., Van Aken S.E., Pai G.H., Watkins K.L., Khouri H.,
RA   Tallon L.J., Zaborsky J.M., Dunbar H.E., Tran P.L., Moran N.A., Eisen J.A.;
RT   "Metabolic complementarity and genomics of the dual bacterial symbiosis of
RT   sharpshooters.";
RL   PLoS Biol. 4:1079-1092(2006).
CC   -!- FUNCTION: Tetrapolymerization of the monopyrrole PBG into the
CC       hydroxymethylbilane pre-uroporphyrinogen in several discrete steps.
CC       {ECO:0000255|HAMAP-Rule:MF_00260}.
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         Evidence={ECO:0000255|HAMAP-Rule:MF_00260};
CC   -!- COFACTOR:
CC       Name=dipyrromethane; Xref=ChEBI:CHEBI:60342;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00260};
CC       Note=Binds 1 dipyrromethane group covalently. {ECO:0000255|HAMAP-
CC       Rule:MF_00260};
CC   -!- PATHWAY: Porphyrin-containing compound metabolism; protoporphyrin-IX
CC       biosynthesis; coproporphyrinogen-III from 5-aminolevulinate: step 2/4.
CC       {ECO:0000255|HAMAP-Rule:MF_00260}.
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00260}.
CC   -!- MISCELLANEOUS: The porphobilinogen subunits are added to the
CC       dipyrromethane group. {ECO:0000255|HAMAP-Rule:MF_00260}.
CC   -!- SIMILARITY: Belongs to the HMBS family. {ECO:0000255|HAMAP-
CC       Rule:MF_00260}.
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DR   EMBL; CP000238; ABF14184.1; -; Genomic_DNA.
DR   RefSeq; WP_011520272.1; NC_007984.1.
DR   AlphaFoldDB; Q1LU25; -.
DR   SMR; Q1LU25; -.
DR   STRING; 374463.BCI_0061; -.
DR   EnsemblBacteria; ABF14184; ABF14184; BCI_0061.
DR   KEGG; bci:BCI_0061; -.
DR   HOGENOM; CLU_019704_0_2_6; -.
DR   OMA; LWQANHI; -.
DR   OrthoDB; 1450400at2; -.
DR   UniPathway; UPA00251; UER00319.
DR   Proteomes; UP000002427; 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..311
FT                   /note="Porphobilinogen deaminase"
FT                   /id="PRO_0000304214"
FT   MOD_RES         242
FT                   /note="S-(dipyrrolylmethanemethyl)cysteine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00260"
SQ   SEQUENCE   311 AA;  34190 MW;  C776496CBF9DC914 CRC64;
     MLNNILKIAT RQSPLAIWQA NYVRNQLLSF YPTLLIELVP IVTSGDLILD KPLMKAGGKR
     LFIKELEQAM LERRADIAVH SMKDITISFP EGIGLAVLCA REDPRDAFIS THYASIDLLP
     TGAVVGTSSM RRQCQLRERR PDLVMRDLRG NIGTRLEKLD KGEYDALILA AAGLKRLDLA
     HRIRMIIDPT ELLPAVGQGV IGIEYRLEDT HILSILAPLH HSATALRVSA ERAMNAKLAG
     GCQVPIGSYA EIEGDQIWLR ALVGSPDGSL IIRSEGRAPL SQAEILGQSI ANDLLYRGAE
     SILCRAFQVD S