ID   AROC_ACTSZ              Reviewed;         360 AA.
AC   A6VMY7;
DT   26-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   04-NOV-2026, 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=Asuc_0966;
OS   Actinobacillus succinogenes (strain ATCC 55618 / DSM 22257 / CCUG 43843 /
OS   130Z).
OC   Bacteria; Pseudomonadati; Pseudomonadota; Gammaproteobacteria;
OC   Pasteurellales; Pasteurellaceae; Actinobacillus.
OX   NCBI_TaxID=339671;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 55618 / DSM 22257 / CCUG 43843 / 130Z;
RX   PubMed=21118570; DOI=10.1186/1471-2164-11-680;
RA   McKinlay J.B., Laivenieks M., Schindler B.D., McKinlay A.A.,
RA   Siddaramappa S., Challacombe J.F., Lowry S.R., Clum A., Lapidus A.L.,
RA   Burkhart K.B., Harkins V., Vieille C.;
RT   "A genomic perspective on the potential of Actinobacillus succinogenes for
RT   industrial succinate production.";
RL   BMC Genomics 11:680-680(2010).
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; Evidence={ECO:0000255|HAMAP-
CC         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}.
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DR   EMBL; CP000746; ABR74334.1; -; Genomic_DNA.
DR   RefSeq; WP_012072711.1; NC_009655.1.
DR   AlphaFoldDB; A6VMY7; -.
DR   SMR; A6VMY7; -.
DR   STRING; 339671.Asuc_0966; -.
DR   KEGG; asu:Asuc_0966; -.
DR   eggNOG; COG0082; Bacteria.
DR   HOGENOM; CLU_034547_0_2_6; -.
DR   OMA; AAAEWEI; -.
DR   OrthoDB; 9771806at2; -.
DR   UniPathway; UPA00053; UER00090.
DR   Proteomes; UP000001114; Chromosome.
DR   GO; GO:0005829; C:cytosol; IEA:TreeGrafter.
DR   GO; GO:0004107; F:chorismate synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0010181; F:FMN binding; IEA:TreeGrafter.
DR   GO; GO:0009073; P:aromatic amino acid biosynthetic process; IEA:InterPro.
DR   GO; GO:0009423; P:chorismate biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd07304; Chorismate_synthase; 1.
DR   FunFam; 3.60.150.10:FF:000001; Chorismate synthase; 1.
DR   Gene3D; 3.60.150.10; Chorismate synthase AroC; 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   NCBIfam; NF003793; aroC; 1.
DR   NCBIfam; TIGR00033; aroC; 1.
DR   PANTHER; PTHR21085; CHORISMATE SYNTHASE; 1.
DR   PANTHER; PTHR21085:SF0; CHORISMATE SYNTHASE; 1.
DR   Pfam; PF01264; Chorismate_synt; 1.
DR   PIRSF; PIRSF001456; Chorismate_synth; 1.
DR   SUPFAM; SSF103263; Chorismate synthase, 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; Reference proteome.
FT   CHAIN           1..360
FT                   /note="Chorismate synthase"
FT                   /id="PRO_1000071964"
FT   BINDING         48
FT                   /ligand="NADP(+)"
FT                   /ligand_id="ChEBI:CHEBI:58349"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         54
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         246..247
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         286
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         301..305
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
FT   BINDING         327
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00300"
SQ   SEQUENCE   360 AA;  38967 MW;  E413021353257FCA CRC64;
     MAGNSIGQLF RVTTFGESHG IALGCIVDGV PPNMALSEAD IQPDLDRRKP GTSRYTTARR
     EADEIQILSG VFEGKTTGTS IGLIIKNADQ RSKDYGDIMD KFRPGHADYT YQQKYGIRDY
     RGGGRSSARE TAMRVAAGAI AKKYLRERFG IEIRGYLSQI GEVKIDPQTV ADVTKINWQQ
     VADNPFFCPD KSAVEKFDEL IRKLKKEGNS IGAKLTVVAE NVPVGLGEPV FDRLDAELAH
     ALMGINAVKA VEIGDGFDVV AQKGTEHRDE MTPAGFLSNH AGGILGGISN GQPIIATIAL
     KPTSSITIPG RTVDINNKPV ELITKGRHDP CVGIRAVPIA EAMVAIILLD HLLRFKAQCK
//