NCBI Accession #
NP_001031391.1
NCBI GenBank Nucleotide #
NM_001036314.2
NCBI Official Full Name
Glucose-1-phosphate adenylyltransferase family protein
NCBI Official Symbol
APL4
NCBI Official Synonym Symbols
F2G1.14; F2G1_14
NCBI Protein Information
Glucose-1-phosphate adenylyltransferase family protein
NCBI Summary
Encodes the large subunit of ADP-glucose pyrophosphorylase, the enzyme which catalyzes the first and limiting step in starch biosynthesis. The large subunit plays a regulatory role whereas the small subunit (ApS) is the catalytic isoform. Four isoforms of the large subunit (ApL1-4) have been described.
UniProt Gene Name
At2g21590
UniProt Protein Name
Probable glucose-1-phosphate adenylyltransferase large subunit, chloroplastic
UniProt Synonym Protein Names
ADP-glucose pyrophosphorylase; ADP-glucose synthase; AGPase S; Alpha-D-glucose-1-phosphate adenyl transferase
UniProt Primary Accession #
Q9SIK1
UniProt Related Accession #
Q9SIK1
UniProt Comments
This protein plays a role in synthesis of starch. It catalyzes the synthesis of the activated glycosyl donor, ADP-glucose from Glc-1-P and ATP .