HEM3_SYNSC
ID HEM3_SYNSC Reviewed; 317 AA.
AC Q3ALS9;
DT 11-SEP-2007, integrated into UniProtKB/Swiss-Prot.
DT 22-NOV-2005, sequence version 1.
DT 03-AUG-2022, entry version 94.
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};
GN OrderedLocusNames=Syncc9605_0679;
OS Synechococcus sp. (strain CC9605).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC unclassified Synechococcus.
OX NCBI_TaxID=110662;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CC9605;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Schmutz J., Martinez M., Larimer F.,
RA Land M., Kyrpides N., Ivanova N., Richardson P.;
RT "Complete sequence of Synechococcus sp. CC9605.";
RL Submitted (JUL-2005) to the EMBL/GenBank/DDBJ databases.
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 -!- PATHWAY: Porphyrin-containing compound metabolism; chlorophyll
CC biosynthesis. {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; CP000110; ABB34453.1; -; Genomic_DNA.
DR RefSeq; WP_011363681.1; NC_007516.1.
DR AlphaFoldDB; Q3ALS9; -.
DR SMR; Q3ALS9; -.
DR STRING; 110662.Syncc9605_0679; -.
DR EnsemblBacteria; ABB34453; ABB34453; Syncc9605_0679.
DR KEGG; syd:Syncc9605_0679; -.
DR eggNOG; COG0181; Bacteria.
DR HOGENOM; CLU_019704_0_2_3; -.
DR OMA; LWQANHI; -.
DR OrthoDB; 1450400at2; -.
DR UniPathway; UPA00251; UER00319.
DR UniPathway; UPA00668; -.
DR GO; GO:0004418; F:hydroxymethylbilane synthase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0015995; P:chlorophyll biosynthetic process; IEA:UniProtKB-UniPathway.
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 Chlorophyll biosynthesis; Porphyrin biosynthesis; Transferase.
FT CHAIN 1..317
FT /note="Porphobilinogen deaminase"
FT /id="PRO_0000304281"
FT MOD_RES 245
FT /note="S-(dipyrrolylmethanemethyl)cysteine"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00260"
SQ SEQUENCE 317 AA; 34318 MW; 3C123A4A855B330F CRC64;
MALTELRIAS RRSQLAMVQT NWVKAELEKA HPGLKITVEA MATQGDKILD VALAKIGDKG
LFTKELEAQM LVDRADIAVH SLKDLPTNLP EGLMLGCITE REDPADALVV NAKNQAYKLE
TLPEGSVVGT SSLRRLAQLR HHYPHLIFKD VRGNVITRLE KLDSGDYDCL ILAAAGLGRL
GFSDRIHQLI PGEISLHAVG QGALGIECVE GKPEVLEAIK VLEHTPTSQR CLAERAFLRE
LEGGCQVPIG VNTRFEGDQL ILTGMVASLD GKRLIRDQTS GEASEAEAIG IALANTLKGQ
GAGEILKEIF ETVRPEA
