ID   AROB_HAEIN              Reviewed;         362 AA.
AC   P43879;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   02-SEP-2026, entry version 150.
DE   RecName: Full=3-dehydroquinate synthase {ECO:0000255|HAMAP-Rule:MF_00110};
DE            Short=DHQS {ECO:0000255|HAMAP-Rule:MF_00110};
DE            EC=4.2.3.4 {ECO:0000255|HAMAP-Rule:MF_00110};
GN   Name=aroB {ECO:0000255|HAMAP-Rule:MF_00110};
GN   OrderedLocusNames=HI_0208;
OS   Haemophilus influenzae (strain ATCC 51907 / DSM 11121 / KW20 / Rd).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria;
OC   Pasteurellales; Pasteurellaceae; Haemophilus.
OX   NCBI_TaxID=71421;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 51907 / DSM 11121 / KW20 / Rd;
RX   PubMed=7542800; DOI=10.1126/science.7542800;
RA   Fleischmann R.D., Adams M.D., White O., Clayton R.A., Kirkness E.F.,
RA   Kerlavage A.R., Bult C.J., Tomb J.-F., Dougherty B.A., Merrick J.M.,
RA   McKenney K., Sutton G.G., FitzHugh W., Fields C.A., Gocayne J.D.,
RA   Scott J.D., Shirley R., Liu L.-I., Glodek A., Kelley J.M., Weidman J.F.,
RA   Phillips C.A., Spriggs T., Hedblom E., Cotton M.D., Utterback T.R.,
RA   Hanna M.C., Nguyen D.T., Saudek D.M., Brandon R.C., Fine L.D.,
RA   Fritchman J.L., Fuhrmann J.L., Geoghagen N.S.M., Gnehm C.L., McDonald L.A.,
RA   Small K.V., Fraser C.M., Smith H.O., Venter J.C.;
RT   "Whole-genome random sequencing and assembly of Haemophilus influenzae
RT   Rd.";
RL   Science 269:496-512(1995).
CC   -!- FUNCTION: Catalyzes the conversion of 3-deoxy-D-arabino-heptulosonate
CC       7-phosphate (DAHP) to dehydroquinate (DHQ). {ECO:0000255|HAMAP-
CC       Rule:MF_00110}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=7-phospho-2-dehydro-3-deoxy-D-arabino-heptonate = 3-
CC         dehydroquinate + phosphate; Xref=Rhea:RHEA:21968, ChEBI:CHEBI:32364,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:58394; EC=4.2.3.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00110};
CC   -!- COFACTOR:
CC       Name=NAD(+); Xref=ChEBI:CHEBI:57540; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00110};
CC   -!- COFACTOR:
CC       Name=Co(2+); Xref=ChEBI:CHEBI:48828; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00110};
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00110};
CC       Note=Binds 1 divalent metal cation per subunit. Can use either Co(2+)
CC       or Zn(2+). {ECO:0000255|HAMAP-Rule:MF_00110};
CC   -!- PATHWAY: Metabolic intermediate biosynthesis; chorismate biosynthesis;
CC       chorismate from D-erythrose 4-phosphate and phosphoenolpyruvate: step
CC       2/7. {ECO:0000255|HAMAP-Rule:MF_00110}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00110}.
CC   -!- SIMILARITY: Belongs to the sugar phosphate cyclases superfamily.
CC       Dehydroquinate synthase family. {ECO:0000255|HAMAP-Rule:MF_00110,
CC       ECO:0000305}.
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DR   EMBL; L42023; AAC21876.1; -; Genomic_DNA.
DR   PIR; G64054; G64054.
DR   AlphaFoldDB; P43879; -.
DR   SMR; P43879; -.
DR   STRING; 71421.HI_0208; -.
DR   EnsemblBacteria; AAC21876; AAC21876; HI_0208.
DR   KEGG; hin:HI_0208; -.
DR   PATRIC; fig|71421.8.peg.213; -.
DR   eggNOG; COG0337; Bacteria.
DR   HOGENOM; CLU_001201_0_2_6; -.
DR   OrthoDB; 9806583at2; -.
DR   PhylomeDB; P43879; -.
DR   BioCyc; HINF71421:G1GJ1-219-MONOMER; -.
DR   UniPathway; UPA00053; UER00085.
DR   Proteomes; UP000000579; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0003856; F:3-dehydroquinate synthase activity; IBA:GO_Central.
DR   GO; GO:0009073; P:aromatic amino acid family biosynthetic process; IBA:GO_Central.
DR   GO; GO:0009423; P:chorismate biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd08195; DHQS; 1.
DR   FunFam; 1.20.1090.10:FF:000002; 3-dehydroquinate synthase; 1.
DR   FunFam; 3.40.50.1970:FF:000031; 3-dehydroquinate synthase; 1.
DR   Gene3D; 3.40.50.1970; -; 1.
DR   Gene3D; 1.20.1090.10; Dehydroquinate synthase-like - alpha domain; 1.
DR   HAMAP; MF_00110; DHQ_synthase; 1.
DR   InterPro; IPR050071; Dehydroquinate_synthase.
DR   InterPro; IPR016037; DHQ_synth_AroB.
DR   InterPro; IPR030963; DHQ_synth_fam.
DR   InterPro; IPR030960; DHQS/DOIS_N.
DR   InterPro; IPR056179; DHQS_C.
DR   NCBIfam; TIGR01357; aroB; 1.
DR   PANTHER; PTHR43622; 3-DEHYDROQUINATE SYNTHASE; 1.
DR   PANTHER; PTHR43622:SF7; 3-DEHYDROQUINATE SYNTHASE, CHLOROPLASTIC; 1.
DR   Pfam; PF01761; DHQ_synthase; 1.
DR   Pfam; PF24621; DHQS_C; 1.
DR   PIRSF; PIRSF001455; DHQ_synth; 1.
DR   SUPFAM; SSF56796; Dehydroquinate synthase-like; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; Cobalt;
KW   Cytoplasm; Lyase; Metal-binding; NAD; Nucleotide-binding;
KW   Reference proteome; Zinc.
FT   CHAIN           1..362
FT                   /note="3-dehydroquinate synthase"
FT                   /id="PRO_0000140743"
FT   BINDING         70..75
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         104..108
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         128..129
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         141
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         150
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         168..171
FT                   /ligand="NAD(+)"
FT                   /ligand_id="ChEBI:CHEBI:57540"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         183
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         246
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
FT   BINDING         263
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00110"
SQ   SEQUENCE   362 AA;  39919 MW;  F787324C1428A110 CRC64;
     MLCVNVELQE RRYPILIGSG LLQDERSYPI KRGDRVMIVT NPTVAQFYLD TVIYALEKRG
     CVVDHVLLPD GEKYKTLESL NLIFTALLQG NHGRDTTIIA LGGGVIGDVA GFAAASYQRG
     VRLIQIPTTL LSQVDSSVGG KTAVNHELGK NMIGAFYQPS MVIIDTLTLN TLPKREVNAG
     LAEVIKYGAI LDYEFFEWLE QHIDELVALH PEALQHCISR CCQIKADVVA RDETEKGDRA
     LLNLGHTFGH AIETHLGYGN WLHGEAVSTG MMMAAALSEE LGDISIADVS RLEKLLARAN
     LPTVSPDTMQ PEDYLPHMMR DKKVLSGKLR LVLLKSLGQA YVANDTEHTL VLNAIRRCTQ
     TD
//