Annotations: 3A2K

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF11734	e3a2kA2	A: beta complex topology	X: PheT/TilS domain (From Topology)	H: PheT/TilS domain (From Topology)	T: PheT/TilS domain	F: PF11734	ECOD (1.6)
A	PF09179	e3a2kA3	A: a+b two layers	X: MesJ substrate recognition domain-like (From Topology)	H: MesJ substrate recognition domain-like (From Topology)	T: MesJ substrate recognition domain-like	F: PF09179	ECOD (1.6)
A	PF01171	e3a2kA1	A: a/b three-layered sandwiches	X: HUP domain-like	H: HUP domains (From Topology)	T: HUP domains	F: PF01171	ECOD (1.6)
B	PF11734	e3a2kB1	A: beta complex topology	X: PheT/TilS domain (From Topology)	H: PheT/TilS domain (From Topology)	T: PheT/TilS domain	F: PF11734	ECOD (1.6)
B	PF09179	e3a2kB3	A: a+b two layers	X: MesJ substrate recognition domain-like (From Topology)	H: MesJ substrate recognition domain-like (From Topology)	T: MesJ substrate recognition domain-like	F: PF09179	ECOD (1.6)
B	PF01171	e3a2kB2	A: a/b three-layered sandwiches	X: HUP domain-like	H: HUP domains (From Topology)	T: HUP domains	F: PF01171	ECOD (1.6)

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	1.10.10.1360	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	tRNA (Ile)-lysidine synthase	CATH (4.3.0)
A	3.30.465.60	Alpha Beta	2-Layer Sandwich	Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase	domain 3	CATH (4.3.0)
B	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)
B	1.10.10.1360	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	tRNA (Ile)-lysidine synthase	CATH (4.3.0)
B	3.30.465.60	Alpha Beta	2-Layer Sandwich	Uridine Diphospho-n-acetylenolpyruvylglucosamine Reductase	domain 3	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF09179	TilS substrate binding domain (TilS)	TilS substrate binding domain	This domain is found in the tRNA(Ile) lysidine synthetase (TilS) protein.	Domain
A, B	PF01171	PP-loop family (ATP_bind_3)	PP-loop family	-	Family
A, B	PF11734	TilS substrate C-terminal domain (TilS_C)	TilS substrate C-terminal domain	This domain is found in the tRNA(Ile) lysidine synthetase (TilS) protein.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	tRNA(Ile)-lysidine synthase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding catalytic activity ligase activity, forming carbon-nitrogen bonds ligase activity	cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing cellular metabolic process tRNA modification primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing cellular metabolic process tRNA modification primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process organic cyclic compound metabolic process RNA modification biosynthetic process ncRNA metabolic process macromolecule modification nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity
C, D	bacterial tRNA	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR015262	tRNA(Ile)-lysidine synthase, substrate-binding domain	Domain
A, B	IPR011063	tRNA(Ile)-lysidine/2-thiocytidine synthase, N-terminal	Domain
A, B	IPR012795	tRNA(Ile)-lysidine synthase, N-terminal	Domain
A, B	IPR012796	Lysidine-tRNA(Ile) synthetase, C-terminal	Domain
A, B	IPR012094	tRNA(Ile)-lysidine synthase	Family
A, B	IPR014729	Rossmann-like alpha/beta/alpha sandwich fold	Homologous Superfamily

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 R01GM133198.