ID   HEM3_MARN8              Reviewed;         313 AA.
AC   A1TXW9;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 88.
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=Maqu_0487;
OS   Marinobacter nauticus (strain ATCC 700491 / DSM 11845 / VT8) (Marinobacter
OS   aquaeolei).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pseudomonadales;
OC   Marinobacteraceae; Marinobacter.
OX   NCBI_TaxID=351348;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 700491 / DSM 11845 / VT8;
RX   PubMed=21335390; DOI=10.1128/aem.01866-10;
RA   Singer E., Webb E.A., Nelson W.C., Heidelberg J.F., Ivanova N., Pati A.,
RA   Edwards K.J.;
RT   "Genomic potential of Marinobacter aquaeolei, a biogeochemical
RT   'opportunitroph'.";
RL   Appl. Environ. Microbiol. 77:2763-2771(2011).
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; CP000514; ABM17588.1; -; Genomic_DNA.
DR   RefSeq; WP_011784032.1; NC_008740.1.
DR   AlphaFoldDB; A1TXW9; -.
DR   SMR; A1TXW9; -.
DR   STRING; 351348.Maqu_0487; -.
DR   EnsemblBacteria; ABM17588; ABM17588; Maqu_0487.
DR   KEGG; maq:Maqu_0487; -.
DR   eggNOG; COG0181; Bacteria.
DR   HOGENOM; CLU_019704_0_2_6; -.
DR   OMA; LWQANHI; -.
DR   OrthoDB; 1450400at2; -.
DR   UniPathway; UPA00251; UER00319.
DR   Proteomes; UP000000998; 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; Transferase.
FT   CHAIN           1..313
FT                   /note="Porphobilinogen deaminase"
FT                   /id="PRO_1000047752"
FT   MOD_RES         242
FT                   /note="S-(dipyrrolylmethanemethyl)cysteine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00260"
SQ   SEQUENCE   313 AA;  34535 MW;  A04F88915B1057E9 CRC64;
     MSKRTLRIAT RSSALALWQA EFIKAELERL HDNVDVELIK IKTQGDKILD VPLAKIGGKG
     LFVKELEEAM LDGRADLAVH SMKDVPMEFP EGLGLVAICE REDPTDAFVS NQYEHIDQLP
     EGAVVGTASL RREAQLRANR PDLQIKVLRG NVNTRLAKLD AGEYDAIVLA SSGLKRLGFH
     DRIRYCLPDT FSLPAVGQGA LGIECRVGDT ELLELIDPLN HTDTWDRVSA ERALNRRLEG
     GCQVPIAAYA LLEDDNTLWL RGLVGAVDGT QIFRVEGRAP RAEGERLGRE LAEQLLSMGA
     DKVLAEIYGH TPR