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Starch and sucrose metabolism

State Icon Reaction EC-Number Confidence maximal confidence score from EnzymeDetector
amylose <=> glycogen 2.4.1.18 1,4-alpha-glucan branching enzyme
2.4.1.25 4-alpha-glucanotransferase
3.2.1.1 alpha-amylase
3.2.1.116 glucan 1,4-alpha-maltotriohydrolase
3.2.1.133 glucan 1,4-alpha-maltohydrolase
3.2.1.135 neopullulanase
3.2.1.41 pullulanase
3.2.1.54 cyclomaltodextrinase
3.2.1.68 isoamylase









sucrose + (1rarr6)-alpha-D-glucan <=> D-fructose + (1rarr6)-alpha-D-glucan 2.4.1.125 sucrose---1,6-alpha-glucan 3(6)-alpha-glucosyltransferase
2.4.1.5 dextransucrase


maltose <=> D-glucose + maltotriose 2.4.1.25 4-alpha-glucanotransferase

maltooligosyltrehalose + H2O <=> amylose + trehalose 3.2.1.141 4-alpha-D-{(1->4)-alpha-D-glucano}trehalose trehalohydrolase

alpha-maltose_1-phosphate + amylose <=> phosphate + amylose 2.4.99.16 starch synthase (maltosyl-transferring)

alpha-D-glucose_1-phosphate + 3-phospho-D-glyceroyl_phosphate <=> H+ + alpha-glucose_1,6-bisphosphate + 3-phospho-D-glycerate 2.7.1.106 glucose-1,6-bisphosphate synthase
5.4.2.2 phosphoglucomutase (alpha-D-glucose-1,6-bisphosphate-dependent)


amylose <=> maltooligosyltrehalose 5.4.99.15 (1->4)-alpha-D-glucan 1-alpha-D-glucosylmutase

trehalose + protein_Npi-phospho-L-histidine <=> alpha,alpha''-Trehalose_6-phosphate + protein_L-histidine 2.7.1.201 protein-Npi-phosphohistidine---trehalose phosphotransferase

D-glucose_6-phosphate + H2O <=> D-glucose + phosphate 3.1.3
3.1.3.1 alkaline phosphatase
3.1.3.10 glucose-1-phosphatase
3.1.3.104 5-amino-6-(5-phospho-D-ribitylamino)uracil phosphatase
3.1.3.2 acid phosphatase
3.1.3.20 phosphoglycerate phosphatase
3.1.3.23 sugar-phosphatase
3.1.3.25 inositol-phosphate phosphatase
3.1.3.26 4-phytase
3.1.3.29 N-acylneuraminate-9-phosphatase
3.1.3.38 3-phosphoglycerate phosphatase
3.1.3.4 phosphatidate phosphatase
3.1.3.58 sugar-terminal-phosphatase
3.1.3.68 2-deoxyglucose-6-phosphatase
3.1.3.8 3-phytase
3.1.3.9 glucose-6-phosphatase
3.1.7.1 prenyl-diphosphatase
3.6.1.1 inorganic diphosphatase


















UDP-glucose + rhodopsin <=> UDP + beta-D-Glucoside 2.4.1.35 phenol beta-glucosyltransferase

ADP-glucose + alpha-D-glucose_1-phosphate <=> ADP + alpha-maltose_1-phosphate + H+ 2.4.1.342 alpha-maltose-1-phosphate synthase

trehalose_phosphate + H2O <=> trehalose + phosphate 3.1.3.1 alkaline phosphatase
3.1.3.101 validoxylamine A 7'-phosphate phosphatase
3.1.3.12 trehalose-phosphatase



Dextran + H2O <=> isomaltose 2.4.1.2 dextrin dextranase
3.2.1.11 dextranase
3.2.1.94 glucan 1,6-alpha-isomaltosidase



H+ + alpha-D-glucose_1-phosphate + ATP <=> ADP-glucose + diphosphate 2.7.7.24 glucose-1-phosphate thymidylyltransferase
2.7.7.27 glucose-1-phosphate adenylyltransferase
2.7.7.9 UTP---glucose-1-phosphate uridylyltransferase



cellooligomers + H2O <=> cellobiose + H2O 3.2.1.176 cellulose 1,4-beta-cellobiosidase (reducing end)
3.2.1.4 cellulase
3.2.1.91 cellulose 1,4-beta-cellobiosidase (non-reducing end)



UDP-glucose + alpha-D-glucose_6-phosphate <=> UDP + alpha,alpha''-Trehalose_6-phosphate 2.4.1.15 alpha,alpha-trehalose-phosphate synthase (UDP-forming)

D-cellobiose_6''-phosphate + H2O <=> D-glucose_6-phosphate + D-glucose 3.2.1.85 6-phospho-beta-galactosidase
3.2.1.86 6-phospho-beta-glucosidase


amylose <=> alpha-cyclodextrin 2.4.1.19 cyclomaltodextrin glucanotransferase
3.2.1.54 cyclomaltodextrinase


maltose <=> trehalose 5.4.99.16 maltose alpha-D-glucosyltransferase

D-fructose + ATP <=> H+ + beta-D-fructose_6-phosphate + ADP 2.7.1.1 hexokinase
2.7.1.15 ribokinase
2.7.1.2 glucokinase
2.7.1.4 fructokinase




amylose + phosphate <=> amylose + alpha-D-glucose_1-phosphate 2.4.1.1 glycogen phosphorylase

levan + H2O <=> levan + levanbiose 3.2.1.64 2,6-beta-fructan 6-levanbiohydrolase

sucrose + H2O <=> D-fructose + D-glucose 2.4.1.10 levansucrase
2.4.1.24 1,4-alpha-glucan 6-alpha-glucosyltransferase
2.4.1.4 amylosucrase
2.4.1.9 inulosucrase
2.4.1.99 sucrose:sucrose fructosyltransferase
3.2.1.10 oligo-1,6-glucosidase
3.2.1.153 fructan beta-(2,1)-fructosidase
3.2.1.154 fructan beta-(2,6)-fructosidase
3.2.1.20 alpha-glucosidase
3.2.1.21 beta-glucosidase
3.2.1.22 alpha-galactosidase
3.2.1.26 beta-fructofuranosidase
3.2.1.28 alpha,alpha-trehalase
3.2.1.3 glucan 1,4-alpha-glucosidase
3.2.1.48 sucrose alpha-glucosidase
3.2.1.64 2,6-beta-fructan 6-levanbiohydrolase
3.2.1.65 levanase
3.2.1.7 inulinase
3.2.1.70 glucan 1,6-alpha-glucosidase
3.2.1.8 endo-1,4-beta-xylanase
3.2.1.80 fructan beta-fructosidase
3.2.1.84 glucan 1,3-alpha-glucosidase
3.2.1.B3
3.7.1.4 phloretin hydrolase
























GDP-glucose + H2O <=> GMP + glucose_1-phosphate 3.6.1
3.6.1.21 ADP-sugar diphosphatase
3.6.1.45 UDP-sugar diphosphatase
3.6.1.9 nucleotide diphosphatase




GDP-glucose + cellulose <=> GDP + cellulose 2.4.1.29 cellulose synthase (GDP-forming)

alpha-maltose_6''-phosphate + H2O <=> D-glucose + D-glucose_6-phosphate 3.2.1.122 maltose-6'-phosphate glucosidase

UDP-glucose + H2O <=> UMP + alpha-D-aldose_1-phosphate + H+ 3.1.4.1 phosphodiesterase I
3.6.1.45 UDP-sugar diphosphatase
3.6.1.8 ATP diphosphatase
3.6.1.9 nucleotide diphosphatase




ADP-glucose + H2O <=> AMP + alpha-D-glucose_1-phosphate + H+ 3.6.1.13 ADP-ribose diphosphatase
3.6.1.21 ADP-sugar diphosphatase
3.6.1.45 UDP-sugar diphosphatase
3.6.1.9 nucleotide diphosphatase




beta-D-Glucoside + H2O <=> D-glucose + rhodopsin 3.2.1.21 beta-glucosidase

UDP-glucose + D-fructose <=> sucrose + UDP + H+ 2.4.1.13 sucrose synthase
2.4.1.14 sucrose-phosphate synthase


H+ + alpha-D-glucose_1-phosphate + GTP <=> GDP-glucose + diphosphate 2.7.7.13 mannose-1-phosphate guanylyltransferase
2.7.7.24 glucose-1-phosphate thymidylyltransferase
2.7.7.28 nucleoside-triphosphate-aldose-1-phosphate nucleotidyltransferase
2.7.7.30 fucose-1-phosphate guanylyltransferase
2.7.7.34 glucose-1-phosphate guanylyltransferase
2.7.7.9 UTP---glucose-1-phosphate uridylyltransferase






sucrose + phosphate <=> D-fructose + alpha-D-glucose_1-phosphate 2.4.1.329 sucrose 6F-phosphate phosphorylase
2.4.1.7 sucrose phosphorylase


H+ + alpha-D-glucose_1-phosphate + CTP <=> CDP-glucose + diphosphate 2.7.7.24 glucose-1-phosphate thymidylyltransferase
2.7.7.33 glucose-1-phosphate cytidylyltransferase
2.7.7.9 UTP---glucose-1-phosphate uridylyltransferase



phosphate + trehalose <=> beta-D-glucose_1-phosphate + D-glucose 2.4.1.64 alpha,alpha-trehalose phosphorylase

UDP-glucose + beta-D-fructose_6-phosphate <=> sucrose_6F-phosphate + UDP + H+ 2.4.1.13 sucrose synthase
2.4.1.14 sucrose-phosphate synthase


D-glucose_6-phosphate <=> beta-D-fructose_6-phosphate 2.6.1.16 glutamine---fructose-6-phosphate transaminase (isomerizing)
5.3.1.8 mannose-6-phosphate isomerase
5.3.1.9 glucose-6-phosphate isomerase



maltose + H2O <=> D-glucose 3.2.1.1 alpha-amylase
3.2.1.10 oligo-1,6-glucosidase
3.2.1.107 protein-glucosylgalactosylhydroxylysine glucosidase
3.2.1.133 glucan 1,4-alpha-maltohydrolase
3.2.1.177 alpha-D-xyloside xylohydrolase
3.2.1.20 alpha-glucosidase
3.2.1.207 mannosyl-oligosaccharide alpha-1,3-glucosidase
3.2.1.21 beta-glucosidase
3.2.1.22 alpha-galactosidase
3.2.1.28 alpha,alpha-trehalase
3.2.1.3 glucan 1,4-alpha-glucosidase
3.2.1.48 sucrose alpha-glucosidase
3.2.1.58 glucan 1,3-beta-glucosidase
3.2.1.70 glucan 1,6-alpha-glucosidase














trehalose_phosphate + H2O <=> D-glucose_6-phosphate + D-glucose 3.2.1.122 maltose-6'-phosphate glucosidase
3.2.1.93 alpha,alpha-phosphotrehalase


cellobiose + H2O <=> D-glucose 3.1.1.20 tannase
3.2.1.108 lactase
3.2.1.149 beta-primeverosidase
3.2.1.21 beta-glucosidase
3.2.1.23 beta-galactosidase
3.2.1.25 beta-mannosidase
3.2.1.28 alpha,alpha-trehalase
3.2.1.38 beta-D-fucosidase
3.2.1.39 glucan endo-1,3-beta-D-glucosidase
3.2.1.4 cellulase
3.2.1.58 glucan 1,3-beta-glucosidase
3.2.1.6 endo-1,3(4)-beta-glucanase
3.2.1.74 glucan 1,4-beta-glucosidase
3.2.1.B26
3.2.1.B28
3.2.1.B33
3.2.1.B34
3.2.1.B35
3.2.1.B40
3.7.1.4 phloretin hydrolase




















UDP-glucose + amylose <=> UDP + starch 2.4.1.11 glycogen(starch) synthase
2.4.1.21 starch synthase (glycosyl-transferring)
2.4.1.242 NDP-glucose---starch glucosyltransferase



cellotriose + H2O <=> cellobiose + D-glucose 3.2.1.151 xyloglucan-specific endo-beta-1,4-glucanase
3.2.1.176 cellulose 1,4-beta-cellobiosidase (reducing end)
3.2.1.21 beta-glucosidase
3.2.1.25 beta-mannosidase
3.2.1.39 glucan endo-1,3-beta-D-glucosidase
3.2.1.4 cellulase
3.2.1.73 licheninase
3.2.1.74 glucan 1,4-beta-glucosidase
3.2.1.91 cellulose 1,4-beta-cellobiosidase (non-reducing end)









phosphate + maltose <=> beta-D-glucose_1-phosphate + D-glucose 2.4.1.8 maltose phosphorylase

UDP-glucose + D-glucose <=> trehalose + UDP + H+ 2.4.1.245 alpha,alpha-trehalose synthase

ATP + maltose <=> H+ + ADP + alpha-maltose_1-phosphate 2.7.1.175 maltokinase

isomaltose + H2O <=> D-glucose + D-glucose 2.4.1.24 1,4-alpha-glucan 6-alpha-glucosyltransferase
3.2.1.10 oligo-1,6-glucosidase
3.2.1.108 lactase
3.2.1.149 beta-primeverosidase
3.2.1.192 ginsenoside Rb1 beta-glucosidase
3.2.1.20 alpha-glucosidase
3.2.1.205 isomaltose glucohydrolase
3.2.1.21 beta-glucosidase
3.2.1.23 beta-galactosidase
3.2.1.28 alpha,alpha-trehalase
3.2.1.3 glucan 1,4-alpha-glucosidase
3.2.1.33 amylo-alpha-1,6-glucosidase
3.2.1.48 sucrose alpha-glucosidase
3.2.1.58 glucan 1,3-beta-glucosidase
3.2.1.70 glucan 1,6-alpha-glucosidase
3.2.1.75 glucan endo-1,6-beta-glucosidase
3.2.1.B26
3.2.1.B33
3.2.1.B40



















alpha-D-glucose_1-phosphate <=> D-glucose_6-phosphate 5.4.2.10 phosphoglucosamine mutase
5.4.2.2 phosphoglucomutase (alpha-D-glucose-1,6-bisphosphate-dependent)
5.4.2.3 phosphoacetylglucosamine mutase
5.4.2.5 phosphoglucomutase (glucose-cofactor)
5.4.2.8 phosphomannomutase





(1,3-beta-D-glucosyl)n + H2O <=> (1,3-beta-D-glucosyl)n + D-glucose 3.2.1.21 beta-glucosidase
3.2.1.39 glucan endo-1,3-beta-D-glucosidase
3.2.1.58 glucan 1,3-beta-glucosidase
3.2.1.6 endo-1,3(4)-beta-glucanase




alpha-maltose_6''-phosphate + H2O <=> maltose + phosphate 3.1.3.90 maltose 6'-phosphate phosphatase

starch + H2O <=> maltose 3.2.1.1 alpha-amylase
3.2.1.133 glucan 1,4-alpha-maltohydrolase
3.2.1.2 beta-amylase
3.2.1.54 cyclomaltodextrinase




Dextrin + H2O <=> Dextrin + beta-D-glucose 3.2.1.10 oligo-1,6-glucosidase
3.2.1.3 glucan 1,4-alpha-glucosidase


sucrose_6F-phosphate + H2O <=> sucrose + phosphate 3.1.3.24 sucrose-phosphate phosphatase

sucrose + inulin <=> D-glucose + inulin 2.4.1.9 inulosucrase

D-glucose + ATP <=> D-glucose_6-phosphate + ADP + H+ 2.7.1.1 hexokinase
2.7.1.2 glucokinase
2.7.1.4 fructokinase
2.7.1.55 allose kinase
2.7.1.59 N-acetylglucosamine kinase
2.7.1.60 N-acylmannosamine kinase
3.1.3.9 glucose-6-phosphatase







UDP-glucose + (1,3-beta-D-glucosyl)n <=> (1,3-beta-D-glucosyl)n + UDP 2.4.1.34 1,3-beta-glucan synthase

ADP-glucose + D-glucose <=> ADP + trehalose 2.4.1.245 alpha,alpha-trehalose synthase

sucrose + levan <=> levan + D-glucose 2.4.1.10 levansucrase

beta-D-glucose_1-phosphate <=> D-glucose_6-phosphate 5.4.2.6 beta-phosphoglucomutase

cellulose + H2O <=> cellulose + cellobiose 3.2.1.91 cellulose 1,4-beta-cellobiosidase (non-reducing end)

protein_Npi-phospho-L-histidine + cellobiose <=> protein_L-histidine + 6-phospho-beta-D-glucosyl-(1,4)-D-glucose 2.7.1.205 protein-Npi-phosphohistidine---cellobiose phosphotransferase

glycogen + H2O <=> glycogen + D-glucose 2.4.1.25 4-alpha-glucanotransferase
3.2.1.10 oligo-1,6-glucosidase
3.2.1.3 glucan 1,4-alpha-glucosidase
3.2.1.33 amylo-alpha-1,6-glucosidase




levan + H2O <=> levanbiose 3.2.1.64 2,6-beta-fructan 6-levanbiohydrolase
3.2.1.65 levanase


ADP-glucose + amylose <=> ADP + amylose 2.4.1.11 glycogen(starch) synthase
2.4.1.21 starch synthase (glycosyl-transferring)
2.4.1.242 NDP-glucose---starch glucosyltransferase



cellulose + H2O <=> cellulose + cellopentaose 3.2.1.4 cellulase

sucrose + amylose <=> D-fructose + amylose 2.4.1.4 amylosucrase

alpha-D-glucose_1-phosphate + UTP + H+ <=> UDP-glucose + diphosphate 2.7.7.23 UDP-N-acetylglucosamine diphosphorylase
2.7.7.24 glucose-1-phosphate thymidylyltransferase
2.7.7.28 nucleoside-triphosphate-aldose-1-phosphate nucleotidyltransferase
2.7.7.33 glucose-1-phosphate cytidylyltransferase
2.7.7.64 UTP-monosaccharide-1-phosphate uridylyltransferase
2.7.7.9 UTP---glucose-1-phosphate uridylyltransferase






cellobiose + phosphate <=> alpha-D-glucose_1-phosphate + D-glucose 2.4.1.20 cellobiose phosphorylase
2.4.1.49 cellodextrin phosphorylase


trehalose + H2O <=> D-glucose + D-glucose 3.2.1.10 oligo-1,6-glucosidase
3.2.1.20 alpha-glucosidase
3.2.1.28 alpha,alpha-trehalase
3.2.1.3 glucan 1,4-alpha-glucosidase




amylose <=> alpha-cyclodextrin 2.4.1.19 cyclomaltodextrin glucanotransferase
3.2.1.54 cyclomaltodextrinase


amylose <=> glycogen 2.4.1.18 1,4-alpha-glucan branching enzyme
2.4.1.25 4-alpha-glucanotransferase
3.2.1.1 alpha-amylase
3.2.1.116 glucan 1,4-alpha-maltotriohydrolase
3.2.1.133 glucan 1,4-alpha-maltohydrolase
3.2.1.135 neopullulanase
3.2.1.41 pullulanase
3.2.1.54 cyclomaltodextrinase
3.2.1.68 isoamylase









sucrose + FAD <=> 3-dehydro-alpha-D-glucosyl-beta-D-fructofuranoside + FADH2 1.1.99.13 glucoside 3-dehydrogenase

starch <=> Dextrin + maltose 3.2.1.1 alpha-amylase
3.2.1.133 glucan 1,4-alpha-maltohydrolase
3.2.1.2 beta-amylase



protein_Npi-phospho-L-histidine + maltose <=> protein_L-histidine + Maltose_6''-phosphate 2.7.1.208 protein-Npi-phosphohistidine---maltose phosphotransferase

alpha-D-glucose_1-phosphate + ATP <=> H+ + alpha-glucose_1,6-bisphosphate + ADP 2.7.1.10 phosphoglucokinase

sucrose + protein_Npi-phospho-L-histidine <=> sucrose_6-phosphate + protein_L-histidine 2.7.1.211 protein-Npi-phosphohistidine---sucrose phosphotransferase

alpha-D-glucose_1-phosphate <=> alpha-glucose_1,6-bisphosphate + D-glucose 2.7.1.41 glucose-1-phosphate phosphodismutase

sucrose_6-phosphate + H2O <=> D-glucose_6-phosphate + D-fructose 3.2.1.122 maltose-6'-phosphate glucosidase
3.2.1.26 beta-fructofuranosidase
3.2.1.B3



UDP-glucose + (1,4-beta-D-glucosyl)n <=> (1,4-beta-D-glucosyl)n + UDP 2.4.1.12 cellulose synthase (UDP-forming)
2.4.1.168 xyloglucan 4-glucosyltransferase


Visualization of the pathway