3HRI

Histidyl-tRNA synthetase (apo) from Trypanosoma brucei

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-synt_His	e3hriA1	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_His	ECOD (1.6)
A	HGTP_anticodon	e3hriA2	A: a/b three-layered sandwiches	X: Anticodon-binding domain of Class II aaRS (From Topology)	H: Anticodon-binding domain of Class II aaRS (From Topology)	T: Anticodon-binding domain of Class II aaRS	F: HGTP_anticodon	ECOD (1.6)
B	tRNA-synt_His	e3hriB4	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_His	ECOD (1.6)
B	HGTP_anticodon	e3hriB3	A: a/b three-layered sandwiches	X: Anticodon-binding domain of Class II aaRS (From Topology)	H: Anticodon-binding domain of Class II aaRS (From Topology)	T: Anticodon-binding domain of Class II aaRS	F: HGTP_anticodon	ECOD (1.6)
C	tRNA-synt_His	e3hriC1	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_His	ECOD (1.6)
C	HGTP_anticodon	e3hriC2	A: a/b three-layered sandwiches	X: Anticodon-binding domain of Class II aaRS (From Topology)	H: Anticodon-binding domain of Class II aaRS (From Topology)	T: Anticodon-binding domain of Class II aaRS	F: HGTP_anticodon	ECOD (1.6)
D	tRNA-synt_His	e3hriD3	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_His	ECOD (1.6)
D	HGTP_anticodon	e3hriD4	A: a/b three-layered sandwiches	X: Anticodon-binding domain of Class II aaRS (From Topology)	H: Anticodon-binding domain of Class II aaRS (From Topology)	T: Anticodon-binding domain of Class II aaRS	F: HGTP_anticodon	ECOD (1.6)
E	tRNA-synt_His	e3hriE1	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_His	ECOD (1.6)
E	HGTP_anticodon	e3hriE2	A: a/b three-layered sandwiches	X: Anticodon-binding domain of Class II aaRS (From Topology)	H: Anticodon-binding domain of Class II aaRS (From Topology)	T: Anticodon-binding domain of Class II aaRS	F: HGTP_anticodon	ECOD (1.6)
F	tRNA-synt_His	e3hriF3	A: a+b three layers	X: Class II aaRS and biotin synthetases (From Topology)	H: Class II aaRS and biotin synthetases (From Topology)	T: Class II aaRS and biotin synthetases	F: tRNA-synt_His	ECOD (1.6)
F	HGTP_anticodon	e3hriF4	A: a/b three-layered sandwiches	X: Anticodon-binding domain of Class II aaRS (From Topology)	H: Anticodon-binding domain of Class II aaRS (From Topology)	T: Anticodon-binding domain of Class II aaRS	F: HGTP_anticodon	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
A	3.40.50.800	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Anticodon-binding domain	CATH (4.3.0)
B	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
B	3.40.50.800	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Anticodon-binding domain	CATH (4.3.0)
C	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
C	3.40.50.800	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Anticodon-binding domain	CATH (4.3.0)
D	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
D	3.40.50.800	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Anticodon-binding domain	CATH (4.3.0)
E	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
E	3.40.50.800	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Anticodon-binding domain	CATH (4.3.0)
F	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
F	3.40.50.800	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Anticodon-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D, E A, B, C, D, E, F	PF13393	Histidyl-tRNA synthetase (tRNA-synt_His)	Histidyl-tRNA synthetase	This is a family of class II aminoacyl-tRNA synthetase-like and ATP phosphoribosyltransferase regulatory subunits.	Domain
A, B, C, D, E A, B, C, D, E, F	PF03129	Anticodon binding domain (HGTP_anticodon)	Anticodon binding domain	This domain is found in histidyl, glycyl, threonyl and prolyl tRNA synthetases [1] it is probably the anticodon binding domain [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D, E A, B, C, D, E, F	Histidyl-tRNA synthetase	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 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 histidine-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 macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process biosynthetic process metabolic process amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process translation gene expression tRNA aminoacylation for protein translation 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 histidyl-tRNA aminoacylation	cellular anatomical structure intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D, E A, B, C, D, E, F	IPR015807	Histidine-tRNA ligase	Family
A, B, C, D, E A, B, C, D, E, F	IPR006195	Aminoacyl-tRNA synthetase, class II	Domain
A, B, C, D, E A, B, C, D, E, F	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR041715	Class II Histidinyl-tRNA synthetase (HisRS)-like catalytic core domain	Domain
A, B, C, D, E A, B, C, D, E, F	IPR004516	Histidine-tRNA ligase/ATP phosphoribosyltransferase regulatory subunit	Family
A, B, C, D, E A, B, C, D, E, F	IPR036621	Anticodon-binding domain superfamily	Homologous Superfamily
A, B, C, D, E A, B, C, D, E, F	IPR004154	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.