proteins similar to glycogen phosphorylase. This family is most closely related to the oligosaccharide phosphorylase domain family and other unidentified sequences. Oligosaccharide phosphorylase catalyzes the breakdown of oligosaccharides into glucose-1-phosphate units. They are important allosteric enzymes in carbohydrate metabolism.

alpha-glucan phosphorylases. This family consists of known phosphorylases, and homologs believed to share the function of using inorganic phosphate to cleave an alpha 1,4 linkage between the terminal glucose residue and the rest of the polymer (maltodextrin, glycogen, etc.). The name of the glucose storage polymer substrate, and therefore the name of this enzyme, depends on the chain lengths and branching patterns. A number of the members of this family have been shown to operate on small maltodextrins, as may be obtained by utilization of exogenous sources. This family represents a distinct clade from the related family modeled by TIGR02093/pfam00343.

Glucan phosphorylase [Carbohydrate transport and metabolism].

glycogen synthase GSY2 and similar proteins. Glycogen synthase, which is most closely related to the GT3 family of glycosyltransferases, catalyzes the transfer of a glucose molecule from UDP-glucose to a terminal branch of a glycogen molecule, a rate-limit step of glycogen biosynthesis. GSY2, the member of this family in S. cerevisiae, has been shown to possess glycogen synthase activity.

Glycogen synthase. This family consists of the eukaryotic glycogen synthase proteins GYS1, GYS2 and GYS3. Glycogen synthase (GS) is the enzyme responsible for the synthesis of -1,4-linked glucose chains in glycogen. It is the rate limiting enzyme in the synthesis of the polysaccharide, and its activity is highly regulated through phosphorylation at multiple sites and also by allosteric effectors, mainly glucose 6-phosphate (G6P).

StructuralBasis for the Recruitment of Glycogen Synthase by Glycogenin [Caenorhabditis elegans],4QLB_B Structural Basis for the Recruitment of Glycogen Synthase by Glycogenin [Caenorhabditis elegans],4QLB_C Structural Basis for the Recruitment of Glycogen Synthase by Glycogenin [Caenorhabditis elegans],4QLB_D Structural Basis for the Recruitment of Glycogen Synthase by Glycogenin [Caenorhabditis elegans]

Crystalstructure of yeast glycogen synthase in complex with uridine-5'-monophosphate [Saccharomyces cerevisiae FostersO],4KQ1_B Crystal structure of yeast glycogen synthase in complex with uridine-5'-monophosphate [Saccharomyces cerevisiae FostersO],4KQ1_C Crystal structure of yeast glycogen synthase in complex with uridine-5'-monophosphate [Saccharomyces cerevisiae FostersO],4KQ1_D Crystal structure of yeast glycogen synthase in complex with uridine-5'-monophosphate [Saccharomyces cerevisiae FostersO],4KQ2_A Glucose1,2cyclic phosphate bound activated state of Yeast Glycogen Synthase [Saccharomyces cerevisiae FostersO],4KQ2_B Glucose1,2cyclic phosphate bound activated state of Yeast Glycogen Synthase [Saccharomyces cerevisiae FostersO],4KQ2_C Glucose1,2cyclic phosphate bound activated state of Yeast Glycogen Synthase [Saccharomyces cerevisiae FostersO],4KQ2_D Glucose1,2cyclic phosphate bound activated state of Yeast Glycogen Synthase [Saccharomyces cerevisiae FostersO]

Glucose-6-Phosphateactivated form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3NB0_B Glucose-6-Phosphate activated form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3NB0_C Glucose-6-Phosphate activated form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3NB0_D Glucose-6-Phosphate activated form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3RT1_A Maltodextarn bound activated state form of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae],3RT1_B Maltodextarn bound activated state form of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae],3RT1_C Maltodextarn bound activated state form of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae],3RT1_D Maltodextarn bound activated state form of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae],5SUL_A Inhibited state structure of yGsy2p [Saccharomyces cerevisiae S288C],5SUL_B Inhibited state structure of yGsy2p [Saccharomyces cerevisiae S288C]

Basalstate form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3NAZ_B Basal state form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3NAZ_C Basal state form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3NAZ_D Basal state form of Yeast Glycogen Synthase [Saccharomyces cerevisiae],3NCH_A Yeast Glycogen Synthase (Gsy2p) Basal State Conformation [Saccharomyces cerevisiae],3NCH_B Yeast Glycogen Synthase (Gsy2p) Basal State Conformation [Saccharomyces cerevisiae],3NCH_C Yeast Glycogen Synthase (Gsy2p) Basal State Conformation [Saccharomyces cerevisiae],3NCH_D Yeast Glycogen Synthase (Gsy2p) Basal State Conformation [Saccharomyces cerevisiae],3O3C_A Glycogen synthase basal state UDP complex [Saccharomyces cerevisiae],3O3C_B Glycogen synthase basal state UDP complex [Saccharomyces cerevisiae],3O3C_C Glycogen synthase basal state UDP complex [Saccharomyces cerevisiae],3O3C_D Glycogen synthase basal state UDP complex [Saccharomyces cerevisiae],3RSZ_A Maltodextran bound basal state conformation of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae],3RSZ_B Maltodextran bound basal state conformation of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae],3RSZ_C Maltodextran bound basal state conformation of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae],3RSZ_D Maltodextran bound basal state conformation of yeast glycogen synthase isoform 2 [Saccharomyces cerevisiae]

yGsy2pin complex with small molecule [Saccharomyces cerevisiae S288C],6U77_B yGsy2p in complex with small molecule [Saccharomyces cerevisiae S288C],6U77_C yGsy2p in complex with small molecule [Saccharomyces cerevisiae S288C],6U77_D yGsy2p in complex with small molecule [Saccharomyces cerevisiae S288C]

Maltodextrin phosphorylase OS=Thermococcus litoralis (strain ATCC 51850 / DSM 5473 / JCM 8560 / NS-C) OX=523849 GN=malP PE=1 SV=1

Glycogen phosphorylase OS=Mycobacterium tuberculosis (strain ATCC 25618 / H37Rv) OX=83332 GN=glgP PE=1 SV=1

Glycogen phosphorylase OS=Mycobacterium tuberculosis (strain CDC 1551 / Oshkosh) OX=83331 GN=glgP PE=3 SV=1

Glycogen phosphorylase OS=Mycobacterium bovis (strain ATCC BAA-935 / AF2122/97) OX=233413 GN=glgP PE=3 SV=1

Glycogen phosphorylase OS=Aquifex aeolicus (strain VF5) OX=224324 GN=glgP PE=3 SV=1