KEGG   ENZYME: 2.4.1.82Help
Entry
EC 2.4.1.82                 Enzyme                                 

Name
galactinol---sucrose galactosyltransferase;
1-alpha-D-galactosyl-myo-inositol:sucrose 6-alpha-D-galactosyltransferase;
alpha-D-galactosyl-(1->3)-myo-inositol:sucrose 6-alpha-D-galactosyltransferase;
raffinose synthase;
RafS
Class
Transferases;
Glycosyltransferases;
Hexosyltransferases
BRITE hierarchy
Sysname
alpha-D-galactosyl-(1->3)-1D-myo-inositol:sucrose 6-alpha-D-galactosyltransferase
Reaction(IUBMB)
alpha-D-galactosyl-(1->3)-1D-myo-inositol + sucrose = myo-inositol + raffinose [RN:R02411 R06071]
Reaction(KEGG)
Substrate
alpha-D-galactosyl-(1->3)-1D-myo-inositol [CPD:C01235];
sucrose [CPD:C00089]
Product
myo-inositol [CPD:C00137];
raffinose [CPD:C00492]
Comment
4-Nitrophenyl alpha-D-galactopyranoside can also act as donor. The enzyme also catalyses an exchange reaction between raffinose and sucrose (cf. EC 2.4.1.123, inositol 3-alpha-galactosyltransferase).
History
EC 2.4.1.82 created 1976, modified 2003
Pathway
Galactose metabolism
Orthology
K06617  
raffinose synthase
Genes
ATH: 
AT1G55740(SIP1) AT3G57520(SIP2) AT5G20250(DIN10) AT5G40390(SIP1)
ALY: 
CRB: 
EUS: 
CIT: 
CIC: 
GMX: 
MTR: 
CAM: 
FVE: 
CSV: 
RCU: 
POP: 
POPTR_0004s21770g POPTR_0006s05130g(POPTRDRAFT_560522) POPTR_0006s06460g(POPTRDRAFT_762165) POPTR_0007s02450g(POPTRDRAFT_802600) POPTR_0011s16940g POPTR_0016s05500g(POPTRDRAFT_734995) POPTR_0018s12670g(POPTRDRAFT_779719) POPTR_582552 POPTR_595025
VVI: 
SLY: 
SOT: 
OSA: 
DOSA: 
Os01t0170000-01(Os01g0170000) Os06t0172800-00(Os06g0172800) Os07t0209100-01(Os07g0209100) Os08t0495800-01(Os08g0495800)
BDI: 
SBI: 
SORBI_01g004130(SORBIDRAFT_01g004130) SORBI_02g006320(SORBIDRAFT_02g006320) SORBI_03g004540(SORBIDRAFT_03g004540) SORBI_07g028620(SORBIDRAFT_07g028620) SORBI_10g004950(SORBIDRAFT_10g004950)
ZMA: 
SITA: 
SMO: 
PPP: 
CRE: 
VCN: 
OLU: 
OTA: 
MIS: 
MPP: 
CSL: 
CVR: 
TPS: 
EHX: 
GTT: 
 » show all
Taxonomy
Reference
1  [PMID:4774118]
  Authors
Lehle L, Tanner W.
  Title
The function of myo-inositol in the biosynthesis of raffinose. Purification and characterization of galactinol:sucrose 6-galactosyltransferase from Vicia faba seeds.
  Journal
Eur. J. Biochem. 38 (1973) 103-10.
  Organism
Vicia faba
Reference
2  [PMID:5491608]
  Authors
Lehle L, Tanner W, Kandler O.
  Title
Myo-inositol, a cofactor in the biosynthesis of raffinose.
  Journal
Hoppe. Seylers. Z. Physiol. Chem. 351 (1970) 1494-8.
  Organism
Vicia faba
Other DBs
ExplorEnz - The Enzyme Database: 
IUBMB Enzyme Nomenclature: 
ExPASy - ENZYME nomenclature database: 
BRENDA, the Enzyme Database: 
CAS: 
62213-45-0

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