Carbohydrate phosphorylase. The members of this family catalyze the formation of glucose 1-phosphate from one of the following polyglucoses; glycogen, starch, glucan or maltodextrin.

Glucan phosphorylase [Carbohydrate transport and metabolism].

4-alpha-glucanotransferase; Provisional

4-alpha-glucanotransferase. These enzymes EC:2.4.1.25 transfer a segment of a (1,4)-alpha-D-glucan to a new 4-position in an acceptor, which may be glucose or (1,4)-alpha-D-glucan.

glycogen phosphorylase and similar proteins. This is a family of oligosaccharide phosphorylases. It includes yeast and mammalian glycogen phosphorylases, plant starch/glucan phosphorylase, as well as the maltodextrin phosphorylases of bacteria. The members of this family catalyze the breakdown of oligosaccharides into glucose-1-phosphate units. They are important allosteric enzymes in carbohydrate metabolism. The allosteric control mechanisms of yeast and mammalian members of this family are different from that of bacterial members. The members of this family belong to the GT-B structural superfamily of glycoslytransferases, which have characteristic N- and C-terminal domains each containing a typical Rossmann fold. The two domains have high structural homology despite minimal sequence homology. The large cleft that separates the two domains includes the catalytic center and permits a high degree of flexibility.

Crystalstructure of putative glycogen phosphorylase from Streptococcus mutans [Streptococcus mutans UA159]

ChainA, 4-alpha-glucanotransferase [Streptococcus agalactiae],6M6T_B Chain B, 4-alpha-glucanotransferase [Streptococcus agalactiae],6M6T_C Chain C, 4-alpha-glucanotransferase [Streptococcus agalactiae],6M6T_D Chain D, 4-alpha-glucanotransferase [Streptococcus agalactiae],6M6T_E Chain E, 4-alpha-glucanotransferase [Streptococcus agalactiae],6M6T_F Chain F, 4-alpha-glucanotransferase [Streptococcus agalactiae],6M6T_G Chain G, 4-alpha-glucanotransferase [Streptococcus agalactiae],6M6T_H Chain H, 4-alpha-glucanotransferase [Streptococcus agalactiae]

Humanliver glycogen phosphorylase (tense state) in complex with the allosteric inhibitor AVE5688 [Homo sapiens],3CEH_B Human liver glycogen phosphorylase (tense state) in complex with the allosteric inhibitor AVE5688 [Homo sapiens],3CEJ_A Human glycogen phosphorylase (tense state) in complex with the allosteric inhibitor AVE2865 [Homo sapiens],3CEJ_B Human glycogen phosphorylase (tense state) in complex with the allosteric inhibitor AVE2865 [Homo sapiens],3CEM_A Human glycogen phosphorylase (tense state) in complex with the allosteric inhibitor AVE9423 [Homo sapiens],3CEM_B Human glycogen phosphorylase (tense state) in complex with the allosteric inhibitor AVE9423 [Homo sapiens]

HUMANLIVER GLYCOGEN PHOSPHORYLASE COMPLEXED WITH N-ACETYL-BETA-D-GLUCOPYRANOSYLAMINE [Homo sapiens],1FC0_B HUMAN LIVER GLYCOGEN PHOSPHORYLASE COMPLEXED WITH N-ACETYL-BETA-D-GLUCOPYRANOSYLAMINE [Homo sapiens],2ATI_A Glycogen Phosphorylase Inhibitors [Homo sapiens],2ATI_B Glycogen Phosphorylase Inhibitors [Homo sapiens]

HUMANLIVER GLYCOGEN PHOSPHORYLASE A COMPLEXED WITH AMP [Homo sapiens]

Maltodextrin phosphorylase OS=Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4) OX=170187 GN=malP PE=3 SV=2

4-alpha-glucanotransferase OS=Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4) OX=170187 GN=malQ PE=3 SV=1

4-alpha-glucanotransferase OS=Streptococcus pneumoniae (strain ATCC BAA-255 / R6) OX=171101 GN=malQ PE=3 SV=1

Glycogen phosphorylase, liver form OS=Mus musculus OX=10090 GN=Pygl PE=1 SV=4

Glycogen phosphorylase OS=Bacillus subtilis (strain 168) OX=224308 GN=glgP PE=2 SV=1