Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

4-alpha-glucanotransferase DPE1, chloroplastic/amyloplastic; Chloroplastic alpha-glucanotransferase involved in maltotriose metabolism. Probably uses maltotriose as substrate to transfer a maltosyl unit from one molecule to another, resulting in glucose and maltopentaose. The latter can then be further metabolized to maltose and maltotriose by beta-amylase. Required for normal starch degradation in leaves; Belongs to the disproportionating enzyme family.

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

4-alpha-glucanotransferase DPE2; Cytosolic alpha-glucanotransferase essential for the cytosolic metabolism of maltose, an intermediate on the pathway by which starch is converted to sucrose in leaves at night. Metabolizes maltose exported from the chloroplast and is specific for beta-maltose. May play a role in freezing tolerance. Temperature drop induces inactivation of DPE2 that leads to rapid accumulation of maltose, a solute that protects cells from freezing damage. Belongs to the disproportionating enzyme family.

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

Isoamylase 1, chloroplastic; Involved in the trimming of pre-amylopectin chains. Accelerates the crystallization of nascent amylopectin molecules during starch synthesis. ISA1 and ISA2 work exclusively together as a multimeric holoenzyme. ISA1-ISA2 removes preferentially branches that are very close to other branches.

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

Isoamylase 2, chloroplastic; Involved in the trimming of pre-amylopectin chains. Accelerates the crystallization of nascent amylopectin molecules during starch synthesis. ISA1 and ISA2 work exclusively together as a multimeric holoenzyme. ISA1-ISA2 removes preferentially branches that are very close to other branches.

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

Isoamylase 3, chloroplastic; Involved in starch catabolism. ISA3 removes different branches than ISA1-ISA2, namely short chains that prevent amylopectin crystallization. May be the debranching enzyme required to assist beta- amylases for starch degradation in leaves at night. Belongs to the glycosyl hydrolase 13 family.

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

Alpha-glucan phosphorylase 1; Phosphorylase is an important allosteric enzyme in carbohydrate metabolism. Enzymes from different sources differ in their regulatory mechanisms and in their natural substrates. However, all known phosphorylases share catalytic and structural properties (By similarity). May be not required for the degradation of starch, but the phosphorolysis of starch may play an important role in water stress tolerance.

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

Alpha-glucan phosphorylase 2, cytosolic; Phosphorylase is an important allosteric enzyme in carbohydrate metabolism. Enzymes from different sources differ in their regulatory mechanisms and in their natural substrates. However, all known phosphorylases share catalytic and structural properties (By similarity).

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

1,4-alpha-glucan-branching enzyme 3, chloroplastic/amyloplastic; 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. Essential during embryogenesis; Belongs to the glycosyl hydrolase 13 family. GlgB subfamily.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

4-alpha-glucanotransferase DPE1, chloroplastic/amyloplastic; Chloroplastic alpha-glucanotransferase involved in maltotriose metabolism. Probably uses maltotriose as substrate to transfer a maltosyl unit from one molecule to another, resulting in glucose and maltopentaose. The latter can then be further metabolized to maltose and maltotriose by beta-amylase. Required for normal starch degradation in leaves; Belongs to the disproportionating enzyme family.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

4-alpha-glucanotransferase DPE2; Cytosolic alpha-glucanotransferase essential for the cytosolic metabolism of maltose, an intermediate on the pathway by which starch is converted to sucrose in leaves at night. Metabolizes maltose exported from the chloroplast and is specific for beta-maltose. May play a role in freezing tolerance. Temperature drop induces inactivation of DPE2 that leads to rapid accumulation of maltose, a solute that protects cells from freezing damage. Belongs to the disproportionating enzyme family.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

Isoamylase 1, chloroplastic; Involved in the trimming of pre-amylopectin chains. Accelerates the crystallization of nascent amylopectin molecules during starch synthesis. ISA1 and ISA2 work exclusively together as a multimeric holoenzyme. ISA1-ISA2 removes preferentially branches that are very close to other branches.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

Isoamylase 2, chloroplastic; Involved in the trimming of pre-amylopectin chains. Accelerates the crystallization of nascent amylopectin molecules during starch synthesis. ISA1 and ISA2 work exclusively together as a multimeric holoenzyme. ISA1-ISA2 removes preferentially branches that are very close to other branches.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

Isoamylase 3, chloroplastic; Involved in starch catabolism. ISA3 removes different branches than ISA1-ISA2, namely short chains that prevent amylopectin crystallization. May be the debranching enzyme required to assist beta- amylases for starch degradation in leaves at night. Belongs to the glycosyl hydrolase 13 family.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

Alpha-glucan phosphorylase 1; Phosphorylase is an important allosteric enzyme in carbohydrate metabolism. Enzymes from different sources differ in their regulatory mechanisms and in their natural substrates. However, all known phosphorylases share catalytic and structural properties (By similarity). May be not required for the degradation of starch, but the phosphorolysis of starch may play an important role in water stress tolerance.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

Alpha-glucan phosphorylase 2, cytosolic; Phosphorylase is an important allosteric enzyme in carbohydrate metabolism. Enzymes from different sources differ in their regulatory mechanisms and in their natural substrates. However, all known phosphorylases share catalytic and structural properties (By similarity).

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]

1,4-alpha-glucan-branching enzyme 3, chloroplastic/amyloplastic; 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. Essential during embryogenesis; Belongs to the glycosyl hydrolase 13 family. GlgB subfamily.

4-alpha-glucanotransferase DPE1, chloroplastic/amyloplastic; Chloroplastic alpha-glucanotransferase involved in maltotriose metabolism. Probably uses maltotriose as substrate to transfer a maltosyl unit from one molecule to another, resulting in glucose and maltopentaose. The latter can then be further metabolized to maltose and maltotriose by beta-amylase. Required for normal starch degradation in leaves; Belongs to the disproportionating enzyme family.

Alpha-amylase 1; Possesses alpha-amylase activity in vitro, but seems not required for breakdown of transitory starch in leaves.

4-alpha-glucanotransferase DPE1, chloroplastic/amyloplastic; Chloroplastic alpha-glucanotransferase involved in maltotriose metabolism. Probably uses maltotriose as substrate to transfer a maltosyl unit from one molecule to another, resulting in glucose and maltopentaose. The latter can then be further metabolized to maltose and maltotriose by beta-amylase. Required for normal starch degradation in leaves; Belongs to the disproportionating enzyme family.

Alpha-amylase 3, chloroplastic; Possesses endoamylolytic activity in vitro, but seems not required for breakdown of transitory starch in leaves. May be involved in the determination of the final structure of glucans by shortening long linear phospho-oligosaccharides in the chloroplast stroma. Can act on both soluble and insoluble glucan substrates to release small linear and branched malto-oligosaccharides. Works synergistically with beta-amylase toward efficient starch degradation. Has activity against p-nitrophenyl maltoheptaoside (BPNP-G7), amylopectin and beta-limit dextrin. Involv [...]