1B2M
THREE-DIMENSIONAL STRUCTURE OF RIBONULCEASE T1 COMPLEXED WITH AN ISOSTERIC PHOSPHONATE ANALOGUE OF GPU: ALTERNATE SUBSTRATE BINDING MODES AND CATALYSIS.
External Resource: Annotation
Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage
Chains | Domain Info | Class | Fold | Superfamily | Family | Domain | Species | Provenance Source (Version) |
---|---|---|---|---|---|---|---|---|
D [auth A] | d1b2ma_ | Alpha and beta proteins (a+b) | Microbial ribonucleases | Microbial ribonucleases | Fungal ribonucleases | RNase T1 | (Aspergillus oryzae ) [TaxId: 5062 ], | SCOPe (2.08) |
E [auth B] | d1b2mb_ | Alpha and beta proteins (a+b) | Microbial ribonucleases | Microbial ribonucleases | Fungal ribonucleases | RNase T1 | (Aspergillus oryzae ) [TaxId: 5062 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Chains | Type | Family Name | Domain Identifier | Family Identifier | Provenance Source (Version) |
---|---|---|---|---|---|
D [auth A] | SCOP2B Superfamily | Microbial ribonucleases | 8033542 | 3001847 | SCOP2B (2022-06-29) |
E [auth B] | SCOP2B Superfamily | Microbial ribonucleases | 8033542 | 3001847 | 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) |
---|---|---|---|---|---|---|---|---|
D [auth A] | Ribonuclease | e1b2mA1 | A: a+b two layers | X: Microbial ribonucleases-like | H: Microbial ribonucleases (From Topology) | T: Microbial ribonucleases | F: Ribonuclease | ECOD (1.6) |
E [auth B] | Ribonuclease | e1b2mB1 | A: a+b two layers | X: Microbial ribonucleases-like | H: Microbial ribonucleases (From Topology) | T: Microbial ribonucleases | F: Ribonuclease | ECOD (1.6) |
Domain Annotation: CATH CATH Database Homepage
Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
---|---|---|---|---|---|---|
D [auth A] | 3.10.450.30 | Alpha Beta | Roll | Nuclear Transport Factor 2 | Chain: A, | CATH (4.3.0) |
E [auth B] | 3.10.450.30 | Alpha Beta | Roll | Nuclear Transport Factor 2 | Chain: A, | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
Chains | Accession | Name | Description | Comments | Source |
---|---|---|---|---|---|
D [auth A], E [auth B] | PF00545 | ribonuclease (Ribonuclease) | ribonuclease | This enzyme hydrolyses RNA and oligoribonucleotides. | Domain |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
Chains | Polymer | Molecular Function | Biological Process | Cellular Component |
---|---|---|---|---|
A [auth C], B [auth D], C [auth E] | 5'-R(*GP*(U34))-3' | - | - | - |
D [auth A], E [auth B] | RIBONUCLEASE T1 |
| - |
InterPro: Protein Family Classification InterPro Database Homepage
Chains | Accession | Name | Type |
---|---|---|---|
D [auth A], E [auth B] | IPR051386 | Guanyl-specific ribonuclease N1/T1 | Family |
D [auth A], E [auth B] | IPR016191 | Ribonuclease/ribotoxin | Homologous Superfamily |
D [auth A], E [auth B] | IPR048269 | Ribonuclease ribotoxin, alpha-sarcin type | Family |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
Chains | Enzyme Name | Description | Catalytic Residues |
---|---|---|---|
ribonuclease T1 M-CSA #414 | Ribonuclease T1 is an extracellular enzyme from Aspergillus oryzae that catalyses the hydrolysis of RNA at guanylyl residues yielding new guanosine 3'-phosphate and 5'-OH ends. It enhances the rate of GpC cleavage by about 10^11-fold. This stable, low molecular weight, monomeric endonuclease is the leading representative of a family of related fungal/bacterial proteins that share sequence and three-dimensional structural similarities. | Defined by 6 residues: TYR:D-38 [auth A-38]HIS:D-40 [auth A-40]GLU:D-58 [auth A-58]ARG:D-77 [auth A-77]HIS:D-92 [auth A-92]PHE:D-100 [auth A-100] | EC: 3.1.27.3 (PDB Primary Data) |