ID   HEM3_FRATT              Reviewed;         300 AA.
AC   Q5NI31;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   03-AUG-2022, entry version 97.
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=FTT_0259;
OS   Francisella tularensis subsp. tularensis (strain SCHU S4 / Schu 4).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC   Francisellaceae; Francisella.
OX   NCBI_TaxID=177416;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SCHU S4 / Schu 4;
RX   PubMed=15640799; DOI=10.1038/ng1499;
RA   Larsson P., Oyston P.C.F., Chain P., Chu M.C., Duffield M., Fuxelius H.-H.,
RA   Garcia E., Haelltorp G., Johansson D., Isherwood K.E., Karp P.D.,
RA   Larsson E., Liu Y., Michell S., Prior J., Prior R., Malfatti S.,
RA   Sjoestedt A., Svensson K., Thompson N., Vergez L., Wagg J.K., Wren B.W.,
RA   Lindler L.E., Andersson S.G.E., Forsman M., Titball R.W.;
RT   "The complete genome sequence of Francisella tularensis, the causative
RT   agent of tularemia.";
RL   Nat. Genet. 37:153-159(2005).
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; AJ749949; CAG44892.1; -; Genomic_DNA.
DR   RefSeq; WP_003021732.1; NZ_CP010290.1.
DR   RefSeq; YP_169311.1; NC_006570.2.
DR   AlphaFoldDB; Q5NI31; -.
DR   SMR; Q5NI31; -.
DR   IntAct; Q5NI31; 1.
DR   STRING; 177416.FTT_0259; -.
DR   DNASU; 3192416; -.
DR   EnsemblBacteria; CAG44892; CAG44892; FTT_0259.
DR   KEGG; ftu:FTT_0259; -.
DR   eggNOG; COG0181; Bacteria.
DR   OMA; LWQANHI; -.
DR   UniPathway; UPA00251; UER00319.
DR   Proteomes; UP000001174; 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..300
FT                   /note="Porphobilinogen deaminase"
FT                   /id="PRO_0000142939"
FT   MOD_RES         239
FT                   /note="S-(dipyrrolylmethanemethyl)cysteine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00260"
SQ   SEQUENCE   300 AA;  33333 MW;  23CE1EE5D1AD8B27 CRC64;
     MKQITIASRE SKLALWQTNF VKNRIQLELN IPCEISTMKT QGDIILDQPL NKIGGKALFM
     KELEVAMLSN KADIAVHSLK DVPYQLPQGF CLAGFMPRED PRDAFVSNKY NSIDDLPKGA
     VVGTSSLRRK AQLLHYRDDL EIRDLRGNIQ TRLSKLDNGD YDAIILASAG LIRLELVERI
     TQFIPVEISL PAVGQGIVVI EALERDNDLL EKIQKLNCRE SSRVATAERA FNQELKGGCH
     VAIGAYAELD NNQITLMAMV ASSDGKKILK RKMIGDDPTK LGKLLAQEMI ALGAYKILES