ID   SUS_BETVU               Reviewed;         766 AA.
AC   Q42652;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   25-MAY-2022, entry version 77.
DE   RecName: Full=Sucrose synthase;
DE            EC=2.4.1.13;
DE   AltName: Full=Sucrose-UDP glucosyltransferase;
DE   Flags: Fragment;
GN   Name=SS1;
OS   Beta vulgaris (Sugar beet).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   Caryophyllales; Chenopodiaceae; Betoideae; Beta.
OX   NCBI_TaxID=161934;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Tap root;
RX   PubMed=8639746; DOI=10.1007/bf00020799;
RA   Hesse H., Willmitzer L.;
RT   "Expression analysis of a sucrose synthase gene from sugar beet (Beta
RT   vulgaris L.).";
RL   Plant Mol. Biol. 30:863-872(1996).
CC   -!- FUNCTION: Sucrose-cleaving enzyme that provides UDP-glucose and
CC       fructose for various metabolic pathways.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=an NDP-alpha-D-glucose + D-fructose = a ribonucleoside 5'-
CC         diphosphate + H(+) + sucrose; Xref=Rhea:RHEA:16241,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:17992, ChEBI:CHEBI:37721,
CC         ChEBI:CHEBI:57930, ChEBI:CHEBI:76533; EC=2.4.1.13;
CC   -!- TISSUE SPECIFICITY: Expressed most predominantly in tap root.
CC   -!- SIMILARITY: Belongs to the glycosyltransferase 1 family. Plant sucrose
CC       synthase subfamily. {ECO:0000305}.
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DR   EMBL; X81974; CAA57499.1; -; mRNA.
DR   PIR; S71493; S71493.
DR   AlphaFoldDB; Q42652; -.
DR   SMR; Q42652; -.
DR   CAZy; GT4; Glycosyltransferase Family 4.
DR   PRIDE; Q42652; -.
DR   GO; GO:0016157; F:sucrose synthase activity; IEA:UniProtKB-EC.
DR   GO; GO:0010555; P:response to mannitol; IEA:EnsemblPlants.
DR   GO; GO:0009414; P:response to water deprivation; IEA:EnsemblPlants.
DR   GO; GO:0010431; P:seed maturation; IEA:EnsemblPlants.
DR   GO; GO:0005982; P:starch metabolic process; IEA:EnsemblPlants.
DR   GO; GO:0005985; P:sucrose metabolic process; IEA:EnsemblPlants.
DR   InterPro; IPR001296; Glyco_trans_1.
DR   InterPro; IPR000368; Sucrose_synth.
DR   InterPro; IPR012820; Sucrose_synthase_pln/cyn.
DR   PANTHER; PTHR45839; PTHR45839; 1.
DR   Pfam; PF00534; Glycos_transf_1; 1.
DR   Pfam; PF00862; Sucrose_synth; 1.
DR   TIGRFAMs; TIGR02470; sucr_synth; 1.
PE   2: Evidence at transcript level;
KW   Glycosyltransferase; Transferase.
FT   CHAIN           <1..766
FT                   /note="Sucrose synthase"
FT                   /id="PRO_0000204646"
FT   REGION          220..698
FT                   /note="GT-B glycosyltransferase"
FT                   /evidence="ECO:0000250|UniProtKB:P49040"
FT   NON_TER         1
SQ   SEQUENCE   766 AA;  87241 MW;  407803ECD8EC4A82 CRC64;
     AGGKQILSDG PFSEVLRSAQ EAIVVPPFVA IAVRPRPGVW EYVRVNVSEL NVEQLTVSEY
     LHFKEELVDG KADDHYVLEL DFEPFNESVP RPTRSSSIGN GVQFLNRHLS SSMFCNKDCL
     EPLLDFLRVH KHKGVVMMLN DRIQTIQRLQ SALSKAEDYL IKLPADTPYS EFEFVIQGMG
     FERGWGDTAE RVLEMMHLLL DILQAPDPST LETFLGRLPM VFNVVILSVH GYFGQAHVLG
     LPDTGGQIVY ILDQVRSLEH EMLQRIKKQG LDVTPRILIV SRLIPDAKGT TCNQRMEKVS
     GTEHASILRV PFRSEKGILR KWISRFDVWP YLETFTEDAA GEIIGELQGR PDLIIGNYSD
     GNIVASLLSH KMGVTQCNIA HALEKTKYPD SDIYWKRFED KYHFSCQFSA DLMAMNHADF
     IITSTYQEIA GTKNTVGQYE SHKAFTFPGL YRVVHGIDVF DPKFNIVSPG ADMAIYFPFS
     EKDVTCLTSL HRLIEQLLFK PEQNEEHIGV LDDTSKPIIF SMARLDRVKN ITGLVECYGK
     NAKLRELANL VVVAGYNDVK KSNDREEIAE IEKMHRLIQE YNLRGQFRWI ASQTNRVRNG
     ELYRYICDKG GIFAQPAFYE AFGLTVVEAM TCGLPTFATC HGGPAEIIED GVSGFHIDPY
     HADQAEKMTE FFVKCREDPN YWTKISAGGL LRIKERYTWQ KYSERLMTLA GVYGFWKYVS
     KLERRETRRY LEMFYILKFR DLANSVPLAT DEEPSTTDAV ATFRGP