Protein
1,4-alpha-glucan-branching enzyme 1, chloroplastic/amyloplastic
Function
Catalyzes the formation of the alpha-1,6-glucosidic linkages in starch by scission of a 1,4-alpha-linked oligosaccharide from growing alpha-1,4-glucan chains and the subsequent attachment of the oligosaccharide to the alpha-1,6 position. May preferentially transfer short chains during branching. Responsible for the synthesis of about 75% of the amylopectin found in the starch granules of mature embryos.
Similarity
Belongs to the glycosyl hydrolase 13 family. GlgB subfamily.
Sequence
MVYTISGIRFPVLPSLHKSTLRCDRRASSHSFFLKNNSSSFSRTSLYAKFSRDSETKSSTIAESDKVLIPEDQDNSVSLADQLENPDITSEDAQNLEDLTMKDGNKYNIDESTSSYREVGDEKGSVTSSSLVDVNTDTQAKKTSVHSDKKVKVDKPKIIPPPGTGQKIYEIDPLLQAHRQHLDFRYGQYKRIREEIDKYEGGLDAFSRGYEKFGFTRSATGITYREWAPGAKSAALVGDFNNWNPNADVMTKDAFGVWEIFLPNNADGSPPIPHGSRVKIHMDTPSGIKDSIPAWIKFSVQAPGEIPYNGIYYDPPEEEKYVFKHPQPKRPQSIRIYESHIGMSSPEPKINTYANFRDDVLPRIKKLGYNAVQIMAIQEHSYYASFGYHVTNFFAPSSRFGTPEDLKSLIDRAHELGLLVLMDIVHSHSSNNTLDGLNMFDGTDGHYFHPGSRGYHWMWDSRLFNYGSWEVLRYLLSNARWWLDEYKFDGFRFDGVTSMMYTHHGLQVSFTGNYSEYFGLATDVEAVVYMMLVNDLIHGLFPEAVSIGEDVSGMPTFCLPTQDGGIGFNYRLHMAVADKWIELLKKQDEDWRMGDIVHTLTNRRWLEKCVVYAESHDQALVGDKTLAFWLMDKDMYDFMALDRPSTPLIDRGIALHKMIRLITMGLGGEGYLNFMGNEFGHPEWIDFPRGEQHLPNGKIVPGNNNSYDKCRRRFDLGDADYLRYHGMQEFDRAMQHLEERYGFMTSEHQYISRKNEGDRVIIFERDNLVFVFNFHWTNSYSDYKVGCLKPGKYKIVLDSDDTLFGGFNRLNHTAEYFTSEGWYDDRPRSFLVYAPSRTAVVYALADGVESEPIELSDGVESEPIELSVGVESEPIELSVEEAESEPIERSVEEVESETTQQSVEVESETTQQSVEVESETTQ