ID   DHQS_HALWD              Reviewed;         399 AA.
AC   Q18DY6;
DT   05-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2006, sequence version 1.
DT   25-MAY-2022, entry version 75.
DE   RecName: Full=3-dehydroquinate synthase {ECO:0000255|HAMAP-Rule:MF_01244};
DE            Short=DHQ synthase {ECO:0000255|HAMAP-Rule:MF_01244};
DE            EC=1.4.1.24 {ECO:0000255|HAMAP-Rule:MF_01244};
DE   AltName: Full=3-dehydroquinate synthase II {ECO:0000255|HAMAP-Rule:MF_01244};
GN   Name=aroB' {ECO:0000255|HAMAP-Rule:MF_01244}; OrderedLocusNames=HQ_1155A;
OS   Haloquadratum walsbyi (strain DSM 16790 / HBSQ001).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Haloferacales;
OC   Haloferacaceae; Haloquadratum.
OX   NCBI_TaxID=362976;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 16790 / HBSQ001;
RX   PubMed=16820047; DOI=10.1186/1471-2164-7-169;
RA   Bolhuis H., Palm P., Wende A., Falb M., Rampp M., Rodriguez-Valera F.,
RA   Pfeiffer F., Oesterhelt D.;
RT   "The genome of the square archaeon Haloquadratum walsbyi: life at the
RT   limits of water activity.";
RL   BMC Genomics 7:169-169(2006).
CC   -!- FUNCTION: Catalyzes the oxidative deamination and cyclization of 2-
CC       amino-3,7-dideoxy-D-threo-hept-6-ulosonic acid (ADH) to yield 3-
CC       dehydroquinate (DHQ), which is fed into the canonical shikimic pathway
CC       of aromatic amino acid biosynthesis. {ECO:0000255|HAMAP-Rule:MF_01244}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2-amino-2,3,7-trideoxy-D-lyxo-hept-6-ulosonate + H2O + NAD(+)
CC         = 3-dehydroquinate + H(+) + NADH + NH4(+); Xref=Rhea:RHEA:25956,
CC         ChEBI:CHEBI:15377, ChEBI:CHEBI:15378, ChEBI:CHEBI:28938,
CC         ChEBI:CHEBI:32364, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC         ChEBI:CHEBI:58859; EC=1.4.1.24; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_01244};
CC   -!- SIMILARITY: Belongs to the archaeal-type DHQ synthase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01244}.
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DR   EMBL; AM180088; CAJ51285.1; -; Genomic_DNA.
DR   RefSeq; WP_011570450.1; NC_008212.1.
DR   AlphaFoldDB; Q18DY6; -.
DR   STRING; 362976.HQ_1155A; -.
DR   EnsemblBacteria; CAJ51285; CAJ51285; HQ_1155A.
DR   GeneID; 4193719; -.
DR   KEGG; hwa:HQ_1155A; -.
DR   eggNOG; arCOG04353; Archaea.
DR   HOGENOM; CLU_056379_0_0_2; -.
DR   OMA; HFGMAIK; -.
DR   Proteomes; UP000001975; Chromosome.
DR   GO; GO:0003856; F:3-dehydroquinate synthase activity; IEA:InterPro.
DR   GO; GO:0102042; F:dehydroquinate synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0051287; F:NAD binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009073; P:aromatic amino acid family biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0008652; P:cellular amino acid biosynthetic process; IEA:UniProtKB-KW.
DR   HAMAP; MF_01244; Arch_DHQ_synthase; 1.
DR   InterPro; IPR002812; DHQ_synth.
DR   PANTHER; PTHR33563; PTHR33563; 1.
DR   Pfam; PF01959; DHQS; 1.
DR   PIRSF; PIRSF006655; DHQ_synth; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; NAD;
KW   Oxidoreductase; Reference proteome.
FT   CHAIN           1..399
FT                   /note="3-dehydroquinate synthase"
FT                   /id="PRO_0000372045"
SQ   SEQUENCE   399 AA;  43552 MW;  18870C9295C4E970 CRC64;
     MTESRSHSRR VWIKADSDVG DWKTRKRRIT TGLEAGVDCV LVDPEDISRV QSLGDVSIAA
     FTSTADSETD SSAETEGVEE ADTVVIGKES ESDGTDDFPE TLSASADLSA IETHSNNTVV
     ETGAYIRILS EEYEALAETA AADASYTIVI GEDWTIIPLE NLIARIGSET TLIAGVTSAE
     EAQTAFETLE IGADGVLLDT DDPDEIRETV AVRDATERET LELEWATVID IERAGMADRV
     CVDTANLMQH NEGMLIGSMS RGLIFVHAET AESPYIASRP FRVNAGAVHA YLRTPDGGTA
     YLSELQSGDT VQVVNTDGQT REAIVGRVKI EKRPMFRIEL EYDDDRVETL LQNAETIKVN
     TQSGRTAVTD LESGDEIRLF YEETARHFGE AVEESIIEK