Annotations: 3FNR

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	DALR_1,tRNA-synt_1_1st	e3fnrA2	A: alpha bundles	X: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases (From Topology)	H: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases (From Topology)	T: Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases	F: DALR_1,tRNA-synt_1_1st	ECOD (1.6)
A	tRNA-synt_1d	e3fnrA1	A: a/b three-layered sandwiches	X: HUP domain-like	H: HUP domains (From Topology)	T: HUP domains	F: tRNA-synt_1d	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.730.10	Mainly Alpha	Orthogonal Bundle	Isoleucyl-tRNA Synthetase	Domain 1	CATH (4.3.0)
A	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00750	tRNA synthetases class I (R), catalytic domain (tRNA-synt_1d)	tRNA synthetases class I (R), catalytic domain	Other tRNA synthetase sub-families are too dissimilar to be included. This family includes only arginyl tRNA synthetase.	Domain
A	PF05746	DALR anticodon binding domain (DALR_1)	DALR anticodon binding domain	This all alpha helical domain is the anticodon binding domain in Arginyl and glycyl tRNA synthetase. This domain is known as the DALR domain after characteristic conserved amino acids [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Arginyl-tRNA synthetase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding ligase activity, forming carbon-oxygen bonds aminoacyl-tRNA ligase activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid catalytic activity, acting on a tRNA arginine-tRNA ligase activity catalytic activity ligase activity	amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process translation gene expression tRNA aminoacylation for protein translation protein biosynthetic process macromolecule biosynthetic process arginyl-tRNA aminoacylation nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process translation gene expression tRNA aminoacylation for protein translation protein biosynthetic process macromolecule biosynthetic process arginyl-tRNA aminoacylation nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process metabolic process cellular process macromolecule metabolic process protein metabolic process	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036695	Arginyl tRNA synthetase N-terminal domain superfamily	Homologous Superfamily
A	IPR005148	Arginyl tRNA synthetase N-terminal domain	Domain
A	IPR001412	Aminoacyl-tRNA synthetase, class I, conserved site	Conserved Site
A	IPR009080	Aminoacyl-tRNA synthetase, class Ia, anticodon-binding	Homologous Superfamily
A	IPR035684	Arginyl-tRNA synthetase, catalytic core domain	Domain
A	IPR001278	Arginine-tRNA ligase	Family
A	IPR014729	Rossmann-like alpha/beta/alpha sandwich fold	Homologous Superfamily
A	IPR008909	DALR anticodon binding	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.