Annotations: 3DSQ

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Lipocalin	e3dsqB1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Lipocalin	ECOD (v295.2)
A	Lipocalin	e3dsqA1	A: alpha arrays	X: HTH	H: HTH	T: tetra-helical, lambda repressor-like	F: Lipocalin	ECOD (v295.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.287.540	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)
B	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)
A	1.10.287.540	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	Helix hairpin bin	CATH (4.3.0)
A	3.30.930.10	Alpha Beta	2-Layer Sandwich	BirA Bifunctional Protein	domain 2	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Pyrrolysyl-tRNA synthetase	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 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 catalytic activity ligase activity catalytic activity, acting on a protein RNA binding tRNA binding nucleic acid binding transferase activity identical protein binding protein binding	amino acid activation tRNA aminoacylation RNA metabolic process primary metabolic process amino acid metabolic process nucleic acid metabolic process tRNA metabolic process nucleobase-containing compound metabolic process metabolic process cellular process macromolecule metabolic process	-

Chains	Accession	Name	Type
A, B	IPR006195	Aminoacyl-tRNA synthetase, class II	Domain
A, B	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)	Homologous Superfamily
A, B	IPR002319	Phenylalanyl-tRNA synthetase	Domain
A, B	IPR023877	Pyrrolysyl-tRNA ligase, C-terminal	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.

3DSQ | pdb_00003dsq