ID   HEM3_HAMD5              Reviewed;         309 AA.
AC   C4K4E3;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   07-JUL-2009, sequence version 1.
DT   25-MAY-2022, entry version 64.
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=HDEF_0703;
OS   Hamiltonella defensa subsp. Acyrthosiphon pisum (strain 5AT).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; aphid secondary symbionts; Candidatus Hamiltonella.
OX   NCBI_TaxID=572265;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=5AT;
RX   PubMed=19451630; DOI=10.1073/pnas.0900194106;
RA   Degnan P.H., Yu Y., Sisneros N., Wing R.A., Moran N.A.;
RT   "Hamiltonella defensa, genome evolution of protective bacterial
RT   endosymbiont from pathogenic ancestors.";
RL   Proc. Natl. Acad. Sci. U.S.A. 106:9063-9068(2009).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP001277; ACQ67436.1; -; Genomic_DNA.
DR   RefSeq; WP_015873257.1; NC_012751.1.
DR   AlphaFoldDB; C4K4E3; -.
DR   SMR; C4K4E3; -.
DR   STRING; 572265.HDEF_0703; -.
DR   EnsemblBacteria; ACQ67436; ACQ67436; HDEF_0703.
DR   GeneID; 66260558; -.
DR   KEGG; hde:HDEF_0703; -.
DR   eggNOG; COG0181; Bacteria.
DR   HOGENOM; CLU_019704_0_2_6; -.
DR   OMA; LWQANHI; -.
DR   UniPathway; UPA00251; UER00319.
DR   Proteomes; UP000002334; 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..309
FT                   /note="Porphobilinogen deaminase"
FT                   /id="PRO_1000204655"
FT   MOD_RES         242
FT                   /note="S-(dipyrrolylmethanemethyl)cysteine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00260"
SQ   SEQUENCE   309 AA;  34081 MW;  C90EA999F24370A4 CRC64;
     MSNNMIRLAT RQSPLALWQA HYVKTGLEFF HPDLKVILLP MVTQGDNILG TALSKTGGKG
     LFVKELERAV LDNRADIAVH SIKDMPLYFP EGLGLVAVCE REDPRDAFLS LRYHDVAQLP
     EGSVVGTSSL RRQCQLYKNY PGIVVRDLRG NVGARLKKLD QGDYDAIVLA VAGLKRLGLE
     NRMTQILRPE TSLPAAGQGA IGIECRLDDT VTLQRVATLN HRPSQLKISC ERALLKRLEG
     GCQTPIGSYA EIENDELWLR AFVGAPDGQL IIDGERRGNF DSAEKIGFEL ANELLSRGAE
     AILAQLNRQ