STRUCTURE OF TYROSYL-T/RNA SYNTHETASE REFINED AT 2.3 ANGSTROMS RESOLUTION. INTERACTION OF THE ENZYME WITH THE TYROSYL ADENYLATE INTERMEDIATE
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 | d2ts1a_ | Alpha and beta proteins (a/b) | Adenine nucleotide alpha hydrolase-like | Nucleotidylyl transferase | Class I aminoacyl-tRNA synthetases (RS), catalytic domain | Tyrosyl-tRNA synthetase (TyrRS) | (Geobacillus stearothermophilus ) [TaxId: 1422 ], | SCOPe (2.08) |
Domain Annotation: SCOP2 Classification SCOP2 Database Homepage
Domain Annotation: ECOD Classification ECOD Database Homepage
Domain Annotation: CATH CATH Database Homepage
| Chain | Domain | Class | Architecture | Topology | Homology | Provenance Source (Version) |
|---|---|---|---|---|---|---|
| A | 3.40.50.620 | Alpha Beta | 3-Layer(aba) Sandwich | Rossmann fold | HUPs | CATH (4.3.0) |
| A | 1.10.240.10 | Mainly Alpha | Orthogonal Bundle | Tyrosyl-Transfer RNA Synthetase | Tyrosyl-Transfer RNA Synthetase | CATH (4.3.0) |
Protein Family Annotation Pfam Database Homepage
| Chains | Accession | Name | Description | Comments | Source |
|---|---|---|---|---|---|
| PF00579 | tRNA synthetases class I (W and Y) (tRNA-synt_1b) | tRNA synthetases class I (W and Y) | - | Family |
Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage
InterPro: Protein Family Classification InterPro Database Homepage
| Chains | Accession | Name | Type |
|---|---|---|---|
| IPR002942 | RNA-binding S4 domain | Domain | |
| IPR024107 | Tyrosine-tRNA ligase, bacterial-type, type 1 | Family | |
| IPR054608 | Tyrosine--tRNA ligase SYY-like, C-terminal domain | Domain | |
| IPR001412 | Aminoacyl-tRNA synthetase, class I, conserved site | Conserved Site | |
| IPR014729 | Rossmann-like alpha/beta/alpha sandwich fold | Homologous Superfamily | |
| IPR002307 | Tyrosine-tRNA ligase | Family | |
| IPR002305 | Aminoacyl-tRNA synthetase, class Ic | Family | |
| IPR024088 | Tyrosine-tRNA ligase, bacterial-type | Family | |
| IPR036986 | RNA-binding S4 domain superfamily | Homologous Superfamily |
Structure Motif Annotation: Mechanism and Catalytic Site Atlas M-CSA Database Homepage
| Chains | Enzyme Name | Description | Catalytic Residues |
|---|---|---|---|
| tyrosine-tRNA ligase M-CSA #197 | Tyrosine-tRNA ligases (TyrRS; also known as Tyrosyl-tRNA synthetases, EC:6.1.1.1) are widely distributed, being found in archaea, bacteria and eukaryotes. TyrRS is a homodimer which attaches Tyr to the appropriate tRNA. TyrRS is a class I tRNA synthetases, so it aminoacylates the 2'-OH of the nucleotide at the 3' end of the tRNA. | Defined by 10 residues: THR:A-40HIS:A-45HIS:A-48LYS:A-82ARG:A-86GLN:A-173ASP:A-194LYS:A-230LYS:A-233THR:A-234 | EC: 6.1.1.1 (PDB Primary Data) |














