ID   AROC_SYNSC              Reviewed;         364 AA.
AC   Q3AMV2;
DT   31-OCT-2006, integrated into UniProtKB/Swiss-Prot.
DT   31-OCT-2006, sequence version 2.
DT   03-AUG-2022, entry version 91.
DE   RecName: Full=Chorismate synthase {ECO:0000255|HAMAP-Rule:MF_00300};
DE            Short=CS {ECO:0000255|HAMAP-Rule:MF_00300};
DE            EC=4.2.3.5 {ECO:0000255|HAMAP-Rule:MF_00300};
DE   AltName: Full=5-enolpyruvylshikimate-3-phosphate phospholyase {ECO:0000255|HAMAP-Rule:MF_00300};
GN   Name=aroC {ECO:0000255|HAMAP-Rule:MF_00300};
GN   OrderedLocusNames=Syncc9605_0304;
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: Catalyzes the anti-1,4-elimination of the C-3 phosphate and
CC       the C-6 proR hydrogen from 5-enolpyruvylshikimate-3-phosphate (EPSP) to
CC       yield chorismate, which is the branch point compound that serves as the
CC       starting substrate for the three terminal pathways of aromatic amino
CC       acid biosynthesis. This reaction introduces a second double bond into
CC       the aromatic ring system. {ECO:0000255|HAMAP-Rule:MF_00300}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=5-O-(1-carboxyvinyl)-3-phosphoshikimate = chorismate +
CC         phosphate; Xref=Rhea:RHEA:21020, ChEBI:CHEBI:29748,
CC         ChEBI:CHEBI:43474, ChEBI:CHEBI:57701; EC=4.2.3.5;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00300};
CC   -!- COFACTOR:
CC       Name=FMNH2; Xref=ChEBI:CHEBI:57618;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00300};
CC       Note=Reduced FMN (FMNH(2)). {ECO:0000255|HAMAP-Rule:MF_00300};
CC   -!- PATHWAY: Metabolic intermediate biosynthesis; chorismate biosynthesis;
CC       chorismate from D-erythrose 4-phosphate and phosphoenolpyruvate: step
CC       7/7. {ECO:0000255|HAMAP-Rule:MF_00300}.
CC   -!- SUBUNIT: Homotetramer. {ECO:0000255|HAMAP-Rule:MF_00300}.
CC   -!- SIMILARITY: Belongs to the chorismate synthase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00300}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=ABB34080.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR   EMBL; CP000110; ABB34080.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; WP_041435385.1; NC_007516.1.
DR   AlphaFoldDB; Q3AMV2; -.
DR   SMR; Q3AMV2; -.
DR   STRING; 110662.Syncc9605_0304; -.
DR   EnsemblBacteria; ABB34080; ABB34080; Syncc9605_0304.
DR   KEGG; syd:Syncc9605_0304; -.
DR   eggNOG; COG0082; Bacteria.
DR   HOGENOM; CLU_034547_0_1_3; -.
DR   OrthoDB; 981870at2; -.
DR   UniPathway; UPA00053; UER00090.
DR   GO; GO:0004107; F:chorismate synthase activity; 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   GO; GO:0009423; P:chorismate biosynthetic process; IEA:UniProtKB-UniPathway.
DR   CDD; cd07304; Chorismate_synthase; 1.
DR   Gene3D; 3.60.150.10; -; 1.
DR   HAMAP; MF_00300; Chorismate_synth; 1.
DR   InterPro; IPR000453; Chorismate_synth.
DR   InterPro; IPR035904; Chorismate_synth_AroC_sf.
DR   InterPro; IPR020541; Chorismate_synthase_CS.
DR   PANTHER; PTHR21085; PTHR21085; 1.
DR   Pfam; PF01264; Chorismate_synt; 1.
DR   PIRSF; PIRSF001456; Chorismate_synth; 1.
DR   SUPFAM; SSF103263; SSF103263; 1.
DR   TIGRFAMs; TIGR00033; aroC; 1.
DR   PROSITE; PS00787; CHORISMATE_SYNTHASE_1; 1.
DR   PROSITE; PS00788; CHORISMATE_SYNTHASE_2; 1.
DR   PROSITE; PS00789; CHORISMATE_SYNTHASE_3; 1.
PE   3: Inferred from homology;
KW   Amino-acid biosynthesis; Aromatic amino acid biosynthesis; FAD;
KW   Flavoprotein; FMN; Lyase; NADP.
FT   CHAIN           1..364
FT                   /note="Chorismate synthase"
FT                   /id="PRO_0000256355"
FT   BINDING         47
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         125..127
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         288
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         303..307
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         329
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
SQ   SEQUENCE   364 AA;  38603 MW;  C848297C02BB1879 CRC64;
     MGSSFGDLFR ISTFGESHGG GVGVIVEGCP PRLNLSVESI QAELDRRKPG QSHITTPRKE
     ADQVQVLSGL LDGETTLGTP IAMVVRNKDQ RPGDYKDMAV AFRPSHADAT YQAKYGIQAR
     SGGGRASARE TIGRVAAGAI AKQLLKQAAG TEILAWVKRI HNIEASGIDP QRVQLSDVEA
     NIVRCPESAV AERMVERIEA IGREGDSCGG VIECVVRHPA VGLGMPVFDK LEADLAKAVM
     SLPATKGFEI GSGFDGTLLK GSEHNDAFLP SDDGRLKTAT NNSGGIQGGI SNGEPIVIRV
     AFKPTATIRK EQQTIDSDGK ATTLAGKGRH DPCVLPRAVP MVEAMVALVL ADHLLRQQGQ
     CSLW