Annotations: 5MKQ

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	UCR_6-4kD	e5mkqB1	A: a/b three-layered sandwiches	X: HAD domain-like	H: The swivelling beta/beta/alpha domain	T: The swivelling beta/beta/alpha domain	F: UCR_6-4kD	ECOD (v294.1)
A	UCR_6-4kD	e5mkqA1	A: a/b three-layered sandwiches	X: HAD domain-like	H: The swivelling beta/beta/alpha domain	T: The swivelling beta/beta/alpha domain	F: UCR_6-4kD	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)
A	3.40.50.620	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	HUPs	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	TtuA PH0300	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 iron-sulfur cluster binding 4 iron, 4 sulfur cluster binding metal cluster binding RNA binding tRNA binding nucleic acid binding cation binding metal ion binding transferase activity catalytic activity	tRNA thio-modification RNA metabolic process tRNA wobble uridine modification nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process tRNA processing tRNA wobble base modification RNA processing tRNA modification primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process tRNA thio-modification RNA metabolic process tRNA wobble uridine modification nucleobase-containing compound metabolic process RNA biosynthetic process nucleic acid biosynthetic process tRNA processing tRNA wobble base modification RNA processing tRNA modification primary metabolic process gene expression nucleobase-containing compound biosynthetic process macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process RNA modification biosynthetic process macromolecule modification metabolic process cellular process macromolecule metabolic process tRNA wobble position uridine thiolation	protein-containing complex cellular anatomical structure intracellular anatomical structure catalytic complex cytosolic tRNA wobble base thiouridylase complex sulfurtransferase complex transferase complex cytoplasm cytosol intracellular protein-containing complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR001763	Rhodanese-like domain	Domain
A, B	IPR011063	tRNA(Ile)-lysidine/2-thiocytidine synthase, N-terminal	Domain
A, B	IPR014729	Rossmann-like alpha/beta/alpha sandwich fold	Homologous Superfamily
A, B	IPR000541	Cytoplasmic tRNA 2-thiolation protein 1	Family
A, B	IPR035107	tRNA thiolation protein, TtcA/Ctu1 type	Family
A, B	IPR054306	2-thiouridine synthetase TtuA-like, N-terminal LIM domain	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.