3ECA
CRYSTAL STRUCTURE OF ESCHERICHIA COLI L-ASPARAGINASE, AN ENZYME USED IN CANCER THERAPY (ELSPAR)
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | d3ecaa_ | Alpha and beta proteins (a/b) | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Asparaginase type II | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
B | d3ecab_ | Alpha and beta proteins (a/b) | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Asparaginase type II | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
C | d3ecac_ | Alpha and beta proteins (a/b) | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Asparaginase type II | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
D | d3ecad_ | Alpha and beta proteins (a/b) | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Glutaminase/Asparaginase | Asparaginase type II | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
A | SCOP2B Superfamily | Glutaminase/Asparaginase | 8033474 | 3001625 | SCOP2B (2022-06-29) |
B | SCOP2B Superfamily | Glutaminase/Asparaginase | 8033474 | 3001625 | SCOP2B (2022-06-29) |
C | SCOP2B Superfamily | Glutaminase/Asparaginase | 8033474 | 3001625 | SCOP2B (2022-06-29) |
D | SCOP2B Superfamily | Glutaminase/Asparaginase | 8033474 | 3001625 | SCOP2B (2022-06-29) |
Domain Annotation: ECOD Classification ECOD Database Homepage
Chains | Family Name | Domain Identifier | Architecture | Possible Homology | Homology | Topology | Family | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
A | PRK04183 | e3ecaA3 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase C-terminal domain (From Topology) | H: Glutaminase/Asparaginase C-terminal domain (From Topology) | T: Glutaminase/Asparaginase C-terminal domain | F: PRK04183 | ECOD (1.6) |
A | Asparaginase | e3ecaA2 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase N-terminal domain (From Topology) | H: Glutaminase/Asparaginase N-terminal domain (From Topology) | T: Glutaminase/Asparaginase N-terminal domain | F: Asparaginase | ECOD (1.6) |
B | PRK04183 | e3ecaB3 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase C-terminal domain (From Topology) | H: Glutaminase/Asparaginase C-terminal domain (From Topology) | T: Glutaminase/Asparaginase C-terminal domain | F: PRK04183 | ECOD (1.6) |
B | Asparaginase | e3ecaB2 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase N-terminal domain (From Topology) | H: Glutaminase/Asparaginase N-terminal domain (From Topology) | T: Glutaminase/Asparaginase N-terminal domain | F: Asparaginase | ECOD (1.6) |
C | PRK04183 | e3ecaC3 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase C-terminal domain (From Topology) | H: Glutaminase/Asparaginase C-terminal domain (From Topology) | T: Glutaminase/Asparaginase C-terminal domain | F: PRK04183 | ECOD (1.6) |
C | Asparaginase | e3ecaC2 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase N-terminal domain (From Topology) | H: Glutaminase/Asparaginase N-terminal domain (From Topology) | T: Glutaminase/Asparaginase N-terminal domain | F: Asparaginase | ECOD (1.6) |
D | PRK04183 | e3ecaD3 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase C-terminal domain (From Topology) | H: Glutaminase/Asparaginase C-terminal domain (From Topology) | T: Glutaminase/Asparaginase C-terminal domain | F: PRK04183 | ECOD (1.6) |
D | Asparaginase | e3ecaD2 | A: a/b three-layered sandwiches | X: Glutaminase/Asparaginase N-terminal domain (From Topology) | H: Glutaminase/Asparaginase N-terminal domain (From Topology) | T: Glutaminase/Asparaginase N-terminal domain | F: Asparaginase | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 3.40.50.1170 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | L-asparaginase, N-terminal domain | CATH (4.3.0) |
A | 3.40.50.40 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | CATH (4.3.0) | |
B | 3.40.50.1170 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | L-asparaginase, N-terminal domain | CATH (4.3.0) |
B | 3.40.50.40 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | CATH (4.3.0) | |
C | 3.40.50.1170 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | L-asparaginase, N-terminal domain | CATH (4.3.0) |
C | 3.40.50.40 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | CATH (4.3.0) | |
D | 3.40.50.1170 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | L-asparaginase, N-terminal domain | CATH (4.3.0) |
D | 3.40.50.40 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF00710 | Asparaginase, N-terminal (Asparaginase) | Asparaginase, N-terminal | This is the N-terminal domain of this enzyme. | Domain | |
PF17763 | Glutaminase/Asparaginase C-terminal domain (Asparaginase_C) | Glutaminase/Asparaginase C-terminal domain | This domain is found at the C-terminus of asparaginase enzymes. | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR027473 | L-asparaginase, C-terminal | Homologous Superfamily | |
IPR027475 | Asparaginase/glutaminase, active site 2 | Active Site | |
IPR036152 | Asparaginase/glutaminase-like superfamily | Homologous Superfamily | |
IPR020827 | Asparaginase/glutaminase, active site 1 | Active Site | |
IPR037152 | L-asparaginase, N-terminal domain superfamily | Homologous Superfamily | |
IPR040919 | Asparaginase/glutaminase, C-terminal | Domain | |
IPR027474 | L-asparaginase, N-terminal | Domain | |
IPR004550 | L-asparaginase, type II | Family | |
IPR006034 | Asparaginase/glutaminase-like | Family |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
asparaginase M-CSA #455 | Asparaginase (EC 3.5.1.1) and glutaminaase (EC 3.5.1.38) remove amino groups from asparagine and glutamine respectively leaving aspartate and glutamate. This entry covers both enzymes, though is derived from asparaginase. Enzymes from both EC families have some activity in the other. Two forms exist in E.coli, type I is cytoplasmic, type II is periplasmic. The type II form has a higher affinity for the substrate and its production is induced under anaerobic conditions when amino acids are the primary carbon source. Type II L-asparaginase is the most studied, because it is an important anti-cancer drug due to its ability to lower the levels of asparagine available to cancerous cells lacking in asparaginase synthase. | Defined by 6 residues: THR:A-12TYR:A-25THR:A-89ASP:A-90LYS:A-162GLU:C-283 | EC: 3.5.1.1 (PDB Primary Data) |