ID   DHQS_METTP              Reviewed;         362 AA.
AC   A0B6K6;
DT   05-MAY-2009, integrated into UniProtKB/Swiss-Prot.
DT   05-MAY-2009, sequence version 2.
DT   25-MAY-2022, entry version 71.
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=Mthe_0539;
OS   Methanothrix thermoacetophila (strain DSM 6194 / JCM 14653 / NBRC 101360 /
OS   PT) (Methanosaeta thermophila).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC   Methanotrichales; Methanotrichaceae; Methanothrix.
OX   NCBI_TaxID=349307;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 6194 / JCM 14653 / NBRC 101360 / PT;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Pitluck S., Chain P.,
RA   Malfatti S., Shin M., Vergez L., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Kim E., Smith K.S., Ingram-Smith C., Richardson P.;
RT   "Complete sequence of Methanosaeta thermophila PT.";
RL   Submitted (OCT-2006) to the EMBL/GenBank/DDBJ databases.
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABK14330.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; CP000477; ABK14330.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; A0B6K6; -.
DR   STRING; 349307.Mthe_0539; -.
DR   EnsemblBacteria; ABK14330; ABK14330; Mthe_0539.
DR   KEGG; mtp:Mthe_0539; -.
DR   HOGENOM; CLU_056379_0_0_2; -.
DR   Proteomes; UP000000674; 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..362
FT                   /note="3-dehydroquinate synthase"
FT                   /id="PRO_0000372053"
SQ   SEQUENCE   362 AA;  39924 MW;  425EE1ADC737D284 CRC64;
     MKEKWLMALA SEWDDVKPLI TTALESGFDC VVVSRDHIEL VRELGSIRIA CFGRERGSED
     LLIMDTSVPR ENQIKSVEKI GRPIGGYVEI RSKEDELFAT ELGKHVDYLL VVGTDWKVIP
     LENMIAALQG YDCKIISCVR SSEEAEVALS TLEHGADGVL LDTRDPSEIK RVQAAAERLG
     MSRIDLKTAT VVAVKPVGMG DRVCVDTCSL MRRGEGMLVG SQSRAFFLVQ SEAEESPYVA
     ARPFRVNAGA VHAYIRVGDK TRYLSELKSG DEVTIVDKDG MTRSAVVGRV KIERRPMILV
     EAEVDGERVS TLLQNAETIK LVSHDGTPIS VAELKPGDKV LVHVETSARH FGMSIEETII
     ER