_EC 2.4.1.21 Starch synthase. 9 PDB entries  
EC 2.-.-.- Transferases. [17,943 PDB entries]
EC 2.4.-.- Glycosyltransferases. [1,918 PDB entries]
EC 2.4.1.- Hexosyltransferases. [944 PDB entries]
EC 2.4.1.21 Starch synthase. [9 PDB entries]    
1rzu

Reaction: ADP-glucose + (1,4-alpha-D-glucosyl)(n) = Adp + (1,4-alpha-D- glucosyl)(n+1).
 


ADP-glucose
+
(1,4-alpha-D-glucosyl)(n)
=
ADP
+
(1,4-alpha-D- glucosyl)(n+1)
Molecule diagrams generated from .mol files obtained from the KEGG ftp site.

Other name(s): ADP-glucose--starch glucosyltransferase. Glycogen synthase. Starch (bacterial glycogen) synthase.
Comments: The description (accepted name) varies according to the source of the enzyme and the nature of its synthetic product, e.g. starch synthase, bacterial glycogen synthase. A similar enzyme utilizes UDP-alpha-D-glucose (cf. Ec 2.4.1.11).
Links:   [IntEnz]   [ExPASy]   [KEGG]  

There are 9 PDB entries in enzyme class E.C.2.4.1.21

  PDB code Protein
1rzu
Crystal structure of the glycogen synthase from a. Tumefacie complex with adp
Source: Agrobacterium tumefaciens. Organism_taxid: 358. Gene: glga1, glga, atu4075, agr_l_1562. Expressed in: escherichia coli bl21(de3). Expression_system_taxid: 469008.
Chains: A, B (477 residues) CATH domains: Unassigned 3.40.50.2000
Bound ligand:   Het Group ADP corresponds to enzyme product ADP
1rzv
Crystal structure of the glycogen synthase from agrobacterium tumefaciens (non-complexed form)
Source: Agrobacterium tumefaciens. Organism_taxid: 358. Gene: glga1, glga, atu4075, agr_l_1562. Expressed in: agrobacterium tumefaciens. Expression_system_taxid: 358.
Chains: A, B (477 residues) CATH domains: Unassigned 3.40.50.2000
2qzs
Crystal structure of wild-type e.Coli gs in complex with adp and glucose(wtgsb)
Source: Escherichia coli. Organism_taxid: 562. Gene: glga. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (477 residues) CATH domains: Unassigned 3.40.50.2000
Bound ligands:   Het Group GLC is 78.00% similar to enzyme reactant (1,4-alpha-D-glucosyl)(n)
  Het Group ADP corresponds to enzyme product ADP
2r4t
Crystal structure of wild-type e.Coli gs in complex with adp and glucose(wtgsc)
Source: Escherichia coli. Gene: glga. Expressed in: escherichia coli.
Chain: A (477 residues) CATH domains: Unassigned 3.40.50.2000
Bound ligands:   Het Group GLC is 78.00% similar to enzyme reactant (1,4-alpha-D-glucosyl)(n)
  Het Group ADP corresponds to enzyme product ADP
2r4u
Crystal structure of wild-type e.Coli gs in complex with adp and glucose(wtgsd)
Source: Escherichia coli. Gene: glga. Expressed in: escherichia coli.
Chain: A (477 residues) CATH domains: Unassigned 3.40.50.2000
Bound ligands:   Het Group GLC is 78.00% similar to enzyme reactant (1,4-alpha-D-glucosyl)(n)
  Het Group ADP corresponds to enzyme product ADP
3cop
Crystal structure of e.Coli gs mutant e377a in complex with adp and acceptor analogue heppso
Source: Escherichia coli. Organism_taxid: 562. Gene: glga. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (476 residues) CATH domains: Unassigned 3.40.50.2000
Bound ligands:   Het Group GLC is 78.00% similar to enzyme reactant (1,4-alpha-D-glucosyl)(n)
  Het Group ADP corresponds to enzyme product ADP
3cx4
Crystal structure of e.Coli gs mutant e377a in complex with adp and oligosaccharides
Source: Escherichia coli. Organism_taxid: 562. Gene: glga. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (476 residues) CATH domains: Unassigned 3.40.50.2000
Bound ligands:   Het Group GLC is 78.00% similar to enzyme reactant (1,4-alpha-D-glucosyl)(n)
  Het Group ADP corresponds to enzyme product ADP
3d1j
Crystal structure of e.Coli gs mutant dmgs(c7s;c408s)
Source: Escherichia coli. Organism_taxid: 562. Gene: glga. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (475 residues) CATH domains: Unassigned 3.40.50.2000
3guh
Crystal structure of wild-type e.Coli gs in complex with adp and dgm
Source: Escherichia coli. Organism_taxid: 83333. Gene: b3429, glga, jw3392. Expressed in: escherichia coli. Expression_system_taxid: 562.
Chain: A (477 residues) CATH domains: Unassigned 3.40.50.2000
Bound ligands:   Het Group ASO is 71.00% similar to enzyme reactant (1,4-alpha-D-glucosyl)(n)
  Het Group ADP corresponds to enzyme product ADP