4TS9
Crystal structure of wild type E. Coli purine nucleoside phosphorylase with 6 FMC molecules
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 | d4ts9a_ | Alpha and beta proteins (a/b) | Phosphorylase/hydrolase-like | Purine and uridine phosphorylases | Purine and uridine phosphorylases | Purine nucleoside phosphorylase, PNP | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
B | d4ts9b_ | Alpha and beta proteins (a/b) | Phosphorylase/hydrolase-like | Purine and uridine phosphorylases | Purine and uridine phosphorylases | Purine nucleoside phosphorylase, PNP | (Escherichia coli ) [TaxId: 562 ], | SCOPe (2.08) |
C | d4ts9c_ | Alpha and beta proteins (a/b) | Phosphorylase/hydrolase-like | Purine and uridine phosphorylases | Purine and uridine phosphorylases | Purine nucleoside phosphorylase, PNP | (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 | Purine and uridine phosphorylases | 8037965 | 3000626 | SCOP2B (2022-06-29) |
B | SCOP2B Superfamily | Purine and uridine phosphorylases | 8037965 | 3000626 | SCOP2B (2022-06-29) |
C | SCOP2B Superfamily | Purine and uridine phosphorylases | 8037965 | 3000626 | 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 | PNP_UDP_1 | e4ts9A1 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Peptidyl-tRNA hydrolase-like (From Topology) | T: Peptidyl-tRNA hydrolase-like | F: PNP_UDP_1 | ECOD (1.6) |
B | PNP_UDP_1 | e4ts9B1 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Peptidyl-tRNA hydrolase-like (From Topology) | T: Peptidyl-tRNA hydrolase-like | F: PNP_UDP_1 | ECOD (1.6) |
C | PNP_UDP_1 | e4ts9C1 | A: a/b three-layered sandwiches | X: Phosphorylase/hydrolase-like | H: Peptidyl-tRNA hydrolase-like (From Topology) | T: Peptidyl-tRNA hydrolase-like | F: PNP_UDP_1 | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
A | 3.40.50.1580 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | Nucleoside phosphorylase domain | CATH (4.3.0) |
B | 3.40.50.1580 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | Nucleoside phosphorylase domain | CATH (4.3.0) |
C | 3.40.50.1580 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | Nucleoside phosphorylase domain | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
PF01048 | Phosphorylase superfamily (PNP_UDP_1) | Phosphorylase superfamily | Members of this family include: purine nucleoside phosphorylase (PNP) Uridine phosphorylase (UdRPase) 5'-methylthioadenosine phosphorylase (MTA phosphorylase) | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
IPR018016 | Nucleoside phosphorylase, conserved site | Conserved Site | |
IPR004402 | Purine nucleoside phosphorylase DeoD-type | Family | |
IPR035994 | Nucleoside phosphorylase superfamily | Homologous Superfamily | |
IPR000845 | Nucleoside phosphorylase domain | Domain |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
Purine nucleoside phosphorylase DeoD-type M-CSA #375 | Purine nucleoside phosphorylase is involved in purine metabolism, metabolising adenosine into adenine and guanosine into guanine, for example. Also works on inosine. These pathways allow the cell to produce nucleotide monophosphates when they cannot synthesise them de novo. The enzyme catalyses the reversible phosphorolytic cleavage of the glycosidic bond of purine nucleosides with the overall reaction: beta-purine nucleoside + orthophosphate <-> purine base + alpha-D-pentose-1-phosphate | Defined by 7 residues: GLY:A-20ARG:A-24ARG:A-87SER:A-90ASP:A-204ARG:A-217ARG:C-43 | EC: 2.4.2.1 (PDB Primary Data) |