ID   HEM3_HYPNA              Reviewed;         321 AA.
AC   Q0BX92;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 114.
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=HNE_3227;
OS   Hyphomonas neptunium (strain ATCC 15444).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomonadales;
OC   Hyphomonadaceae; Hyphomonas.
OX   NCBI_TaxID=228405;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 15444;
RX   PubMed=16980487; DOI=10.1128/jb.00111-06;
RA   Badger J.H., Hoover T.R., Brun Y.V., Weiner R.M., Laub M.T., Alexandre G.,
RA   Mrazek J., Ren Q., Paulsen I.T., Nelson K.E., Khouri H.M., Radune D.,
RA   Sosa J., Dodson R.J., Sullivan S.A., Rosovitz M.J., Madupu R.,
RA   Brinkac L.M., Durkin A.S., Daugherty S.C., Kothari S.P., Giglio M.G.,
RA   Zhou L., Haft D.H., Selengut J.D., Davidsen T.M., Yang Q., Zafar N.,
RA   Ward N.L.;
RT   "Comparative genomic evidence for a close relationship between the
RT   dimorphic prosthecate bacteria Hyphomonas neptunium and Caulobacter
RT   crescentus.";
RL   J. Bacteriol. 188:6841-6850(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; CP000158; ABI75549.1; -; Genomic_DNA.
DR   RefSeq; WP_011648197.1; NC_008358.1.
DR   AlphaFoldDB; Q0BX92; -.
DR   SMR; Q0BX92; -.
DR   STRING; 228405.HNE_3227; -.
DR   PRIDE; Q0BX92; -.
DR   EnsemblBacteria; ABI75549; ABI75549; HNE_3227.
DR   KEGG; hne:HNE_3227; -.
DR   eggNOG; COG0181; Bacteria.
DR   HOGENOM; CLU_019704_0_2_5; -.
DR   OMA; LWQANHI; -.
DR   OrthoDB; 1450400at2; -.
DR   UniPathway; UPA00251; UER00319.
DR   Proteomes; UP000001959; 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..321
FT                   /note="Porphobilinogen deaminase"
FT                   /id="PRO_1000125673"
FT   MOD_RES         250
FT                   /note="S-(dipyrrolylmethanemethyl)cysteine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00260"
SQ   SEQUENCE   321 AA;  34257 MW;  CB1EAA872D4A897B CRC64;
     MTQIDPPKGG KRLRLGTRGS PLALAQAHQI ADGIRAASAG AYDCEIVAFT TTGDKLTTER
     LINSGGKGLF TRELDDALSR GELDLAVHSL KDVPSVLPPG QIFAAFPKRE DPRDGFLSHG
     AKSIQDLPEG ATLGTASLRR EAQALALRPD LKVVTFRGNV ATRMRKLEEG LADATFLAMA
     GLTRLGLSEV ATPIPLEDML PAAGQGIIGV VTRDDVDTEL LEILGQLSHE PSRVAAIAER
     AFLEKLDGSC RTPIAAHLFD RGDEWQLIGE VLSPGGTTRW RGDGVCRKDA TDAQLVLLGR
     AVAQEIIFAA KEALPVFGDE R