Protein
Granule-bound starch synthase 1, chloroplastic/amyloplastic
Organism
Arabidopsis thaliana
Function
Required for the synthesis of amylose (PubMed:25710501). Destroyed as it is released from the starch granules during the night (PubMed:15347792). The circadian expression is controlled by CCA1 and LHY transcription factors (PubMed:12777053).
Similarity
Belongs to the glycosyltransferase 1 family. Bacterial/plant glycogen synthase subfamily.
Sequence
MATVTASSNFVSRTSLFNNHGASSCSDVAQITLKGQSLTHCGLRSFNMVDNLQRRSQAKPVSAKSSKRSSKVKTAGKIVCEKGMSVIFIGAEVGPWSKTGGLGDVLGGLPPALAARGHRVMTICPRYDQYKDAWDTCVVVQIKVGDKVENVRFFHCYKRGVDRVFVDHPIFLAKVVGKTGSKIYGPITGVDYNDNQLRFSLLCQAALEAPQVLNLNSSKYFSGPYGEDVVFVANDWHTALLPCYLKSMYQSRGVYMNAKVVFCIHNIAYQGRFAFDDYSLLNLPISFKSSFDFMDGYEKPVKGRKINWMKAAILEAHRVLTVSPYYAQELISGVDRGVELHKYLRMKTVSGIINGMDVQEWNPSTDKYIDIKYDITTVTDAKPLIKEALQAAVGLPVDRDVPVIGFIGRLEEQKGSDILVEAISKFMGLNVQMVILGTGKKKMEAQILELEEKFPGKAVGVAKFNVPLAHMITAGADFIIVPSRFEPCGLIQLHAMRYGTVPIVASTGGLVDTVKDGYTGFHIGRFNVKCEVVDPDDVIATAKAVTRAVAVYGTSAMQEMVKNCMDQDFSWKGPARLWEKVLLSLNVAGSEAGTEGEEIAPLAKENVATP