ID   TPS3_VITAC              Reviewed;         814 AA.
AC   A0A2K9RFZ8;
DT   22-APR-2020, integrated into UniProtKB/Swiss-Prot.
DT   25-APR-2018, sequence version 1.
DT   03-AUG-2022, entry version 13.
DE   RecName: Full=Syn-copalyl diphosphate synthase TPS3, chloroplastic {ECO:0000303|PubMed:29315936};
DE            EC=5.5.1.14 {ECO:0000269|PubMed:29315936};
DE   AltName: Full=Terpene synthase 3 {ECO:0000303|PubMed:29315936};
DE            Short=VacTPS3 {ECO:0000303|PubMed:29315936};
DE   Flags: Precursor;
GN   Name=TPS3 {ECO:0000303|PubMed:29315936};
OS   Vitex agnus-castus (Chaste tree).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Lamiales; Lamiaceae; Viticoideae; Vitex.
OX   NCBI_TaxID=54477;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA], FUNCTION, CATALYTIC ACTIVITY, PATHWAY, AND
RP   TISSUE SPECIFICITY.
RC   TISSUE=Fruit, Leaf, and Trichome gland;
RX   PubMed=29315936; DOI=10.1111/tpj.13822;
RA   Heskes A.M., Sundram T.C.M., Boughton B.A., Jensen N.B., Hansen N.L.,
RA   Crocoll C., Cozzi F., Rasmussen S., Hamberger B., Hamberger B., Staerk D.,
RA   Moeller B.L., Pateraki I.;
RT   "Biosynthesis of bioactive diterpenoids in the medicinal plant Vitex agnus-
RT   castus.";
RL   Plant J. 93:943-958(2018).
RN   [2]
RP   REVIEW ON MENSTRUAL CYCLE DISORDERS.
RX   PubMed=12809367; DOI=10.1078/094471103322004866;
RA   Wuttke W., Jarry H., Christoffel V., Spengler B., Seidlova-Wuttke D.;
RT   "Chaste tree (Vitex agnus-castus)--pharmacology and clinical indications.";
RL   Phytomedicine 10:348-357(2003).
RN   [3]
RP   PATHWAY, AND REVIEW.
RX   PubMed=30468448; DOI=10.1039/c8np00077h;
RA   Liu Y., Jing S.-X., Luo S.-H., Li S.-H.;
RT   "Non-volatile natural products in plant glandular trichomes: chemistry,
RT   biological activities and biosynthesis.";
RL   Nat. Prod. Rep. 36:626-665(2019).
CC   -!- FUNCTION: Involved in the biosynthesis of labdane-type diterpenoid
CC       including cleroda-dienols, and peregrinol lactones and furan
CC       derivatives, dopaminergic diterpenoids that can bind to dopamine
CC       receptors in the human pituitary gland, have probably ability to lower
CC       prolactin levels, and are used to treat menstrual cycle disorders (e.g.
CC       premenstrual syndrome and mastodynia) (Probable). Terpene synthase that
CC       produces syn-copalyl diphosophate from geranylgeranyl diphosphate
CC       (GGPP) (PubMed:29315936). {ECO:0000269|PubMed:29315936,
CC       ECO:0000305|PubMed:12809367, ECO:0000305|PubMed:29315936,
CC       ECO:0000305|PubMed:30468448}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2E,6E,10E)-geranylgeranyl diphosphate = 9alpha-copalyl
CC         diphosphate; Xref=Rhea:RHEA:25524, ChEBI:CHEBI:58622,
CC         ChEBI:CHEBI:58756; EC=5.5.1.14;
CC         Evidence={ECO:0000269|PubMed:29315936};
CC       PhysiologicalDirection=left-to-right; Xref=Rhea:RHEA:25525;
CC         Evidence={ECO:0000269|PubMed:29315936};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000250|UniProtKB:Q38802};
CC   -!- PATHWAY: Secondary metabolite biosynthesis; terpenoid biosynthesis.
CC       {ECO:0000305|PubMed:29315936, ECO:0000305|PubMed:30468448}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast {ECO:0000255}.
CC   -!- TISSUE SPECIFICITY: Mostly expressed in trichomes of leaves and fruits.
CC       {ECO:0000269|PubMed:29315936}.
CC   -!- DOMAIN: The Asp-Xaa-Asp-Asp (DXDD) motif is important for the catalytic
CC       activity, presumably through binding to Mg(2+). {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the terpene synthase family. {ECO:0000305}.
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DR   EMBL; MG696750; AUT77122.1; -; mRNA.
DR   AlphaFoldDB; A0A2K9RFZ8; -.
DR   SMR; A0A2K9RFZ8; -.
DR   UniPathway; UPA00213; -.
DR   GO; GO:0009507; C:chloroplast; IEA:UniProtKB-SubCell.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:InterPro.
DR   GO; GO:0051498; F:syn-copalyl diphosphate synthase activity; IDA:UniProtKB.
DR   GO; GO:0010333; F:terpene synthase activity; IEA:InterPro.
DR   GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniPathway.
DR   Gene3D; 1.10.600.10; -; 1.
DR   Gene3D; 1.50.10.130; -; 1.
DR   InterPro; IPR008949; Isoprenoid_synthase_dom_sf.
DR   InterPro; IPR001906; Terpene_synth_N.
DR   InterPro; IPR036965; Terpene_synth_N_sf.
DR   InterPro; IPR005630; Terpene_synthase_metal-bd.
DR   InterPro; IPR008930; Terpenoid_cyclase/PrenylTrfase.
DR   Pfam; PF01397; Terpene_synth; 1.
DR   Pfam; PF03936; Terpene_synth_C; 1.
DR   SUPFAM; SSF48239; SSF48239; 2.
DR   SUPFAM; SSF48576; SSF48576; 1.
PE   1: Evidence at protein level;
KW   Chloroplast; Isomerase; Magnesium; Metal-binding; Plastid; Transit peptide.
FT   TRANSIT         1..52
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000255"
FT   CHAIN           53..814
FT                   /note="Syn-copalyl diphosphate synthase TPS3,
FT                   chloroplastic"
FT                   /id="PRO_0000449309"
FT   MOTIF           386..389
FT                   /note="DXDD motif"
FT                   /evidence="ECO:0000305"
FT   BINDING         248
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:Q38802"
FT   BINDING         386
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:C7BKP9"
FT   BINDING         388
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000250|UniProtKB:C7BKP9"
FT   BINDING         472
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000250|UniProtKB:Q38802"
SQ   SEQUENCE   814 AA;  94102 MW;  20581C8446316C18 CRC64;
     MCSLSTLSPN FSNAYGSKSV SSTASRFPCW QRSNETWKTQ SREVIHWTYV VRCKEVLNEA
     RQGHMNLPHV TLQNDLCERE ALKEDMPLLN EYKMEECIRY IKNMLGSMDD GRITVSPYDT
     AWIALIRDIE GRDIPQFPSS LEWIANNQLS DGSWGDEQFF LAYDRLLNTL ACVVALTYWK
     VHADKSEKGI LFIKENISKL GDANVEQMTC GFEVVFPALL TKAKDLGIHG IPYDAPVMQE
     IFATKDRKME RVPKELLHKV PTCLLHNLEG LGNVDALGKL DWPKLLKLQT PKGSYITSPA
     ASAFAVMETK DKDCLAFINY VVNKFNGGAP TVYPVDIYAR LWAVDRLQRL GISRFFEPEI
     KNCLDYVYRF WTEKGVFSAR ESEFCDIDDT SMSIRLLRLH GYDIKPNALK HFKKDNMFTC
     YVGQGFESPS PIFNLYRASQ VLFPGETILE EARDFSYNFL RERLEKNDLL DKWLISKHLP
     DEIKCGLEMP WYASLPRVEA RFYIENYGVD DIWIGKSLYR MPEINDPVYL ELAKLDYKRC
     QTQHQLEWRH IQQWYEDSSL EEFGISKKDL LLAYFLAAAS IFEPGRSGQR LAWVKSQIMS
     HILTTYFSIK EASSSEQRKS STKLENEQGR GQSRKTTIQR FITIFFGSLQ EIMRDANEQI
     GKDISNLLFD IWRVWLEKLG EGNEEIQEVE LLVSTINICG GHIASKDILS HSEYKTLSRL
     TNKICHQLRQ LDMGNEELIA IEWRKNKTTD SIYREIEKDM QLLVQLVLQD SSNGISKDIK
     QTFLLAAKTF YYRAYFPTEQ IGNHISKVLF EPVV