4FZ2

Crystal structure of the fourth type of archaeal tRNA splicing endonuclease from Candidatus Micrarchaeum acidiphilum ARMAN-2

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
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)
A	tRNA_int_endo_N	e4fz2A1	A: a+b two layers	X: Homing endonucleases-like	H: tRNA-intron endonuclease N-terminal domain-like (From Topology)	T: tRNA-intron endonuclease N-terminal domain-like	F: tRNA_int_endo_N	ECOD (1.6)
A	tRNA_int_endo	e4fz2A3	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: tRNA_int_endo	ECOD (1.6)
A	tRNA_int_endo_1	e4fz2A4	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: tRNA_int_endo_1	ECOD (1.6)
B	tRNA_int_endo_N	e4fz2B1	A: a+b two layers	X: Homing endonucleases-like	H: tRNA-intron endonuclease N-terminal domain-like (From Topology)	T: tRNA-intron endonuclease N-terminal domain-like	F: tRNA_int_endo_N	ECOD (1.6)
B	tRNA_int_endo	e4fz2B3	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: tRNA_int_endo	ECOD (1.6)
B	tRNA_int_endo_1	e4fz2B4	A: a/b three-layered sandwiches	X: Restriction endonuclease-like	H: tRNA-intron endonuclease catalytic domain-like (From Topology)	T: tRNA-intron endonuclease catalytic domain-like	F: tRNA_int_endo_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1170.20	Alpha Beta	3-Layer(aba) Sandwich	MutS, DNA mismatch repair protein, domain I	tRNA intron endonuclease, N-terminal domain	CATH (4.3.0)
B	3.40.1170.20	Alpha Beta	3-Layer(aba) Sandwich	MutS, DNA mismatch repair protein, domain I	tRNA intron endonuclease, N-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01974	tRNA intron endonuclease, catalytic C-terminal domain (tRNA_int_endo)	tRNA intron endonuclease, catalytic C-terminal domain	Members of this family cleave pre tRNA at the 5' and 3' splice sites to release the intron EC:3.1.27.9.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	tRNA intron endonuclease	endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters tRNA-specific ribonuclease activity endonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity, acting on a tRNA RNA endonuclease activity, producing 3'-phosphomonoesters tRNA-intron endonuclease activity nuclease activity hydrolase activity, acting on ester bonds RNA endonuclease activity catalytic activity endonuclease activity, active with either ribo- or deoxyribonucleic acids and producing 3'-phosphomonoesters tRNA-specific ribonuclease activity endonuclease activity catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid RNA nuclease activity hydrolase activity catalytic activity, acting on a tRNA RNA endonuclease activity, producing 3'-phosphomonoesters tRNA-intron endonuclease activity nuclease activity hydrolase activity, acting on ester bonds RNA endonuclease activity catalytic activity binding organic cyclic compound binding nucleic acid binding	cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process tRNA splicing, via endonucleolytic cleavage and ligation organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process tRNA splicing, via endonucleolytic cleavage and ligation organic substance metabolic process tRNA processing organic substance biosynthetic process RNA processing RNA splicing cellular metabolic process primary metabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process organic cyclic compound metabolic process biosynthetic process RNA splicing, via endonucleolytic cleavage and ligation ncRNA metabolic process nucleic acid catabolic process metabolic process cellular process macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR006677	tRNA intron endonuclease, catalytic domain-like	Domain
A, B	IPR036740	tRNA intron endonuclease, N-terminal domain superfamily	Homologous Superfamily
A, B	IPR011856	tRNA endonuclease-like domain superfamily	Homologous Superfamily
A, B	IPR036167	tRNA intron endonuclease, catalytic domain-like superfamily	Homologous Superfamily
A, B	IPR006676	tRNA-splicing endonuclease	Family

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.