6H45 | pdb_00006h45

crystal structure of the human TGT catalytic subunit QTRT1 in complex with queuine

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations
Protein Modification Annotation

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	tRNA-guanine transglycosylase	8079677	3000635	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	tRNA-guanine transglycosylase	8079677	3000635	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	TGT	e6h45B1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: TGT	ECOD (1.6)
A	TGT	e6h45A1	A: a/b barrels	X: TIM beta/alpha-barrel	H: TIM barrels (From Topology)	T: TIM barrels	F: TGT	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.20.20.105	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Queuine tRNA-ribosyltransferase-like	CATH (utative)
A	3.20.20.105	Alpha Beta	Alpha-Beta Barrel	TIM Barrel	Queuine tRNA-ribosyltransferase-like	CATH (utative)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF01702	Queuine tRNA-ribosyltransferase (TGT)	Queuine tRNA-ribosyltransferase	This is a family of queuine tRNA-ribosyltransferases EC:2.4.2.29, also known as tRNA-guanine transglycosylase and guanine insertion enzyme. Queuine tRNA-ribosyltransferase modifies tRNAs for asparagine, aspartic acid, histidine and tyrosine with que ...	This is a family of queuine tRNA-ribosyltransferases EC:2.4.2.29, also known as tRNA-guanine transglycosylase and guanine insertion enzyme. Queuine tRNA-ribosyltransferase modifies tRNAs for asparagine, aspartic acid, histidine and tyrosine with queuine. It catalyses the exchange of guanine-34 at the wobble position with 7-aminomethyl-7-deazaguanine, and the addition of a cyclopentenediol moiety to 7-aminomethyl-7-deazaguanine-34 tRNA; giving a hypermodified base queuine in the wobble position [1,2]. The aligned region contains a zinc binding motif C-x-C-x2-C-x29-H, and important tRNA and 7-aminomethyl-7deazaguanine binding residues [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Queuine tRNA-ribosyltransferase catalytic subunit 1	identical protein binding protein binding binding protein homodimerization activity protein dimerization activity protein heterodimerization activity pentosyltransferase activity glycosyltransferase activity catalytic activity, acting on RNA tRNA-guanosine(34) queuine transglycosylase activity catalytic activity, acting on a nucleic acid catalytic activity, acting on a tRNA transferase activity catalytic activity identical protein binding protein binding binding protein homodimerization activity protein dimerization activity protein heterodimerization activity pentosyltransferase activity glycosyltransferase activity catalytic activity, acting on RNA tRNA-guanosine(34) queuine transglycosylase activity catalytic activity, acting on a nucleic acid catalytic activity, acting on a tRNA transferase activity catalytic activity cation binding ion binding metal ion binding small molecule binding	tRNA modification RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA modification biosynthetic process tRNA processing macromolecule modification tRNA modification RNA metabolic process primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process RNA modification biosynthetic process tRNA processing macromolecule modification metabolic process cellular process macromolecule metabolic process RNA processing	membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle protein-containing complex catalytic complex transferase complex tRNA-guanine transglycosylase complex mitochondrial membrane membrane membrane-bounded organelle intracellular organelle cellular anatomical structure intracellular anatomical structure mitochondrion organelle cytoplasm intracellular membrane-bounded organelle protein-containing complex catalytic complex transferase complex tRNA-guanine transglycosylase complex mitochondrial membrane membrane organelle outer membrane organelle envelope bounding membrane of organelle mitochondrial envelope mitochondrial outer membrane outer membrane organelle membrane cytoplasmic side of membrane cytoplasmic side of mitochondrial outer membrane side of membrane nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036511	Queuine tRNA-ribosyltransferase-like	Homologous Superfamily
A, B	IPR004803	tRNA-guanine transglycosylase	Family
A, B	IPR002616	tRNA-guanine(15) transglycosylase-like	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q9BXR0	psoriasis Alzheimer disease plasma cell myeloma rheumatoid arthritis ovarian cancer progressive supranuclear palsy vascular disease Pick disease

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A, B	OCS	Parent Component: CYS RESID: AA0556 PSI-MOD : L-cysteic acid (L-cysteine sulfonic acid) MOD:00460

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.