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Information on EC 2.4.1.242 - NDP-glucose-starch glucosyltransferase and Organism(s) Zea mays and UniProt Accession P04713

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EC Tree
     2 Transferases
         2.4 Glycosyltransferases
             2.4.1 Hexosyltransferases
                2.4.1.242 NDP-glucose-starch glucosyltransferase
IUBMB Comments
Unlike EC 2.4.1.11, glycogen(starch) synthase and EC 2.4.1.21, starch synthase, which use UDP-glucose and ADP-glucose, respectively, this enzyme can use either UDP- or ADP-glucose. Mutants that lack the Wx (waxy) allele cannot produce this enzyme, which plays an important role in the normal synthesis of amylose. In such mutants, only amylopectin is produced in the endosperm or pollen .
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Zea mays
UNIPROT: P04713
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Word Map
The taxonomic range for the selected organisms is: Zea mays
The expected taxonomic range for this enzyme is: Eukaryota, Archaea, Bacteria
Synonyms
sgp-1, wx-b1, wx-a1, waxy protein, gbss1, wx-d1, gbssii, wx protein, gbss i, granule bound starch synthase i, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
granule-bound starch synthase I
-
SYSTEMATIC NAME
IUBMB Comments
NDP-glucose:(1->4)-alpha-D-glucan 4-alpha-D-glucosyltransferase
Unlike EC 2.4.1.11, glycogen(starch) synthase and EC 2.4.1.21, starch synthase, which use UDP-glucose and ADP-glucose, respectively, this enzyme can use either UDP- or ADP-glucose. Mutants that lack the Wx (waxy) allele cannot produce this enzyme, which plays an important role in the normal synthesis of amylose. In such mutants, only amylopectin is produced in the endosperm [3] or pollen [5].
CAS REGISTRY NUMBER
COMMENTARY hide
9031-53-2
-
ORGANISM
COMMENTARY hide
LITERATURE
UNIPROT
SEQUENCE DB
SOURCE
-
UniProt
Manually annotated by BRENDA team
SOURCE TISSUE
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
SOURCE
LOCALIZATION
ORGANISM
UNIPROT
COMMENTARY hide
GeneOntology No.
LITERATURE
SOURCE
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
SSG1_MAIZE
605
0
65967
Swiss-Prot
Chloroplast (Reliability: 5)
MOLECULAR WEIGHT
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
55000
SDS-PAGE
58000
calculated from sequence of cDNA
REF.
AUTHORS
TITLE
JOURNAL
VOL.
PAGES
YEAR
ORGANISM (UNIPROT)
PUBMED ID
SOURCE
Grimaud, F.; Rogniaux, H.; James, M.G.; Myers, A.M.; Planchot, V.
Proteome and phosphoproteome analysis of starch granule-associated proteins from normal maize and mutants affected in starch biosynthesis
J. Exp. Bot.
59
3395-3406
2008
Zea mays (P04713)
Manually annotated by BRENDA team