Protein
Probable starch synthase 4, chloroplastic/amyloplastic
Organism
Arabidopsis thaliana
Function
Probably involved in the priming of starch granule formation. May play a regulatory role in the control of starch accumulation in plastids. Is necessary and sufficient to establish the correct number of starch granules observed in chloroplasts.
Similarity
Belongs to the glycosyltransferase 1 family. Bacterial/plant glycogen synthase subfamily.
Sequence
MTTKLSSFCFLTHGLAGISCEREHGSSRRFFYLPSRRLVSTSCKMRQQRGFDSSKRQEVKKGSPKPILSINSGLQSNNDEESDLENGSADSVPSLKSDAEKGSSIHGSIDMNHADENLEKKDDIQTTEVTRRKSKTAKKKGESIHATIDIGHDDGKNLDNITVPEVAKALSLNKSEGEQISDGQFGELMTMIRSAEKNILRLDEARATALDDLNKILSDKEALQGEINVLEMKLSETDERIKTAAQEKAHVELLEEQLEKLRHEMISPIESDGYVLALSKELETLKLENLSLRNDIEMLKSELDSVKDTGERVVVLEKECSGLESSVKDLESKLSVSQEDVSQLSTLKIECTDLWAKVETLQLLLDRATKQAEQAVIVLQQNQDLRNKVDKIEESLKEANVYKESSEKIQQYNELMQHKVTLLEERLEKSDAEIFSYVQLYQESIKEFQETLESLKEESKKKSRDEPVDDMPWDYWSRLLLTVDGWLLEKKIASNDADLLRDMVWKKDRRIHDTYIDVKDKNERDAISAFLKLVSSPTSSGLYVVHIAAEMAPVAKVGGLGDVVAGLGKALQRKGHLVEIILPKYDCMQYDRVRDLRALDTVVESYFDGKLYKNKIWIGTVEGLPVHFIEPQHPSKFFWRGQFYGEQDDFRRFSYFSRAALELLLQSGKKPDIIHCHDWQTAFVAPLYWDLYAPKGLDSARICFTCHNFEYQGTASASELGSCGLDVNQLNRPDRMQDHSSGDRVNPVKGAIIFSNIVTTVSPTYAQEVRTAEGGKGLHSTLNFHSKKFIGILNGIDTDSWNPATDPFLKAQFNAKDLQGKEENKHALRKQLGLSSAESRRPLVGCITRLVPQKGVHLIRHAIYRTLELGGQFVLLGSSPVPHIQREFEGIEQQFKSHDHVRLLLKYDEALSHTIYAASDLFIIPSIFEPCGLTQMIAMRYGSIPIARKTGGLNDSVFDIDDDTIPTQFQNGFTFQTADEQGFNYALERAFNHYKKDEEKWMRLVEKVMSIDFSWGSSATQYEELYTRSVSRARAVPNRT