Annotations: 6NOW

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	F_UNCLASSIFIED	e6nowA2	A: alpha bundles	X: C-terminal helical domain of alanine-tRNA ligase (From Homology)	H: C-terminal helical domain of alanine-tRNA ligase	T: Eukaryotic C-Ala helical domain	F: F_UNCLASSIFIED	ECOD (1.6)
A	F_UNCLASSIFIED	e6nowA1	A: a+b three layers	X: C-terminal domain in DHH phosphoesterases (From Topology)	H: C-terminal domain in DHH phosphoesterases (From Topology)	T: C-terminal domain in DHH phosphoesterases	F: F_UNCLASSIFIED	ECOD (1.6)
B	F_UNCLASSIFIED	e6nowB2	A: alpha bundles	X: C-terminal helical domain of alanine-tRNA ligase (From Homology)	H: C-terminal helical domain of alanine-tRNA ligase	T: Eukaryotic C-Ala helical domain	F: F_UNCLASSIFIED	ECOD (1.6)
B	F_UNCLASSIFIED	e6nowB1	A: a+b three layers	X: C-terminal domain in DHH phosphoesterases (From Topology)	H: C-terminal domain in DHH phosphoesterases (From Topology)	T: C-terminal domain in DHH phosphoesterases	F: F_UNCLASSIFIED	ECOD (1.6)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Alanine--tRNA ligase, mitochondrial	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 hydrolase activity, acting on ester bonds catalytic activity, acting on RNA catalytic activity, acting on a nucleic acid carboxylic ester hydrolase activity aminoacyl-tRNA editing activity hydrolase activity catalytic activity, acting on a tRNA catalytic activity ligase activity, forming carbon-oxygen bonds alanine-tRNA ligase activity aminoacyl-tRNA ligase activity ligase activity cation binding transition metal ion binding zinc ion binding metal ion binding RNA binding tRNA binding nucleic acid binding	amino acid activation tRNA aminoacylation cellular biosynthetic process organonitrogen compound biosynthetic process RNA metabolic process amino acid metabolic process nucleobase-containing compound metabolic process organic substance metabolic process alanyl-tRNA aminoacylation organic substance biosynthetic process protein metabolic process organonitrogen compound metabolic process cellular metabolic process primary metabolic process amino acid activation tRNA aminoacylation cellular biosynthetic process organonitrogen compound biosynthetic process RNA metabolic process amino acid metabolic process nucleobase-containing compound metabolic process organic substance metabolic process alanyl-tRNA aminoacylation organic substance biosynthetic process protein metabolic process organonitrogen compound metabolic process cellular metabolic process primary metabolic process translation gene expression tRNA aminoacylation for protein translation macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process organic cyclic compound metabolic process biosynthetic process metabolic process cellular process macromolecule metabolic process mitochondrial translation mitochondrial gene expression tRNA aminoacylation for mitochondrial protein translation mitochondrial RNA metabolic process mitochondrial alanyl-tRNA aminoacylation	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR045864	Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)	Homologous Superfamily
A, B	IPR018164	Alanyl-tRNA synthetase, class IIc, N-terminal	Domain
A, B	IPR018162	Alanine-tRNA ligase, class IIc, anti-codon-binding domain superfamily	Homologous Superfamily
A, B	IPR012947	Threonyl/alanyl tRNA synthetase, SAD	Domain
A, B	IPR002318	Alanine-tRNA ligase, class IIc	Family
A, B	IPR018163	Threonyl/alanyl tRNA synthetase, class II-like, putative editing domain superfamily	Homologous Superfamily
A, B	IPR009000	Translation protein, beta-barrel domain superfamily	Homologous Superfamily
A, B	IPR018165	Alanyl-tRNA synthetase, class IIc, core domain	Domain
A, B	IPR023033	Alanine-tRNA ligase, eukaryota/bacteria	Family

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q5JTZ9	leukoencephalopathy, progressive, with ovarian failure combined oxidative phosphorylation defect type 8 cardiomyopathy primary ovarian failure Epileptic encephalopathy osteosarcoma hereditary diffuse leukoencephalopathy with axonal spheroids and pigmented glia ovarioleukodystrophy rheumatoid arthritis combined oxidative phosphorylation deficiency leukodystrophy neurodegenerative disease premature menopause

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 R01GM133198.