Annotations: 8R2A

CpKRS complexed with lysine and an inhibitor

External Resource: Annotation

Domain Annotation: ECOD Classification
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D [auth B]	WD40	e8r2aB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
C	WD40	e8r2aC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
B [auth D]	WD40	e8r2aD1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: WD40	ECOD (v294.2)
A		e8r2aA01	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F:	ECOD (v294.2)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B [auth D], C, D [auth B]	PF00152	tRNA synthetases class II (D, K and N) (tRNA-synt_2)	tRNA synthetases class II (D, K and N)		Domain
A, B [auth D], C, D [auth B]	PF01336	OB-fold nucleic acid binding domain (tRNA_anti-codon)	OB-fold nucleic acid binding domain	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an am ...	This family contains OB-fold domains that bind to nucleic acids [4]. The family includes the anti-codon binding domain of lysyl, aspartyl, and asparaginyl -tRNA synthetases (See Pfam:PF00152). Aminoacyl-tRNA synthetases catalyse the addition of an amino acid to the appropriate tRNA molecule EC:6.1.1.-. This family also includes part of RecG helicase involved in DNA repair. Replication factor A is a hetero-trimeric complex, that contains a subunit in this family [2,3]. This domain is also found at the C-terminus of bacterial DNA polymerase III alpha chain.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B [auth D], C, D [auth B]	Lysine--tRNA ligase	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 lysine-tRNA ligase activity catalytic activity ligase activity RNA binding tRNA binding nucleic acid binding	lysyl-tRNA aminoacylation 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 nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process lysyl-tRNA aminoacylation 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 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 cytosol

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B [auth D], C, D [auth B]	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)	Homologous Superfamily
A, B [auth D], C, D [auth B]	IPR034762	Bacterial/eukaryotic lysine-tRNA ligase, class II	Family
A, B [auth D], C, D [auth B]	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
A, B [auth D], C, D [auth B]	IPR006195	Aminoacyl-tRNA synthetase, class II	Domain
A, B [auth D], C, D [auth B]	IPR018149	Lysyl-tRNA synthetase, class II, C-terminal	Domain
A, B [auth D], C, D [auth B]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A, B [auth D], C, D [auth B]	IPR004364	Aminoacyl-tRNA synthetase, class II (D/K/N)	Domain
A, B [auth D], C, D [auth B]	IPR002313	Lysine-tRNA ligase, class II	Family
A, B [auth D], C, D [auth B]	IPR044136	Lysine-tRNA ligase, class II, N-terminal	Domain
A, B [auth D], C, D [auth B]	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)	Homologous Superfamily
A, B [auth D], C, D [auth B]	IPR034762	Bacterial/eukaryotic lysine-tRNA ligase, class II	Family
A, B [auth D], C, D [auth B]	IPR004365	OB-fold nucleic acid binding domain, AA-tRNA synthetase-type	Domain
A, B [auth D], C, D [auth B]	IPR006195	Aminoacyl-tRNA synthetase, class II	Domain
A, B [auth D], C, D [auth B]	IPR018149	Lysyl-tRNA synthetase, class II, C-terminal	Domain
A, B [auth D], C, D [auth B]	IPR012340	Nucleic acid-binding, OB-fold	Homologous Superfamily
A, B [auth D], C, D [auth B]	IPR004364	Aminoacyl-tRNA synthetase, class II (D/K/N)	Domain
A, B [auth D], C, D [auth B]	IPR002313	Lysine-tRNA ligase, class II	Family
A, B [auth D], C, D [auth B]	IPR044136	Lysine-tRNA ligase, class II, N-terminal	Domain

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

8R2A | pdb_00008r2a

CpKRS complexed with lysine and an inhibitor

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

Protein Family Annotation Pfam Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage