Annotations: 1XO3

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1xo3a1	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	MoaD/ThiS	C9orf74 homolog	C9orf74 homolog	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d1xo3a2	Artifacts	Tags	Tags	Tags	N-terminal Tags	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	C9orf74 homolog	8031702	4003667	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	MoaD/ThiS-like	8044080	3000330	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Urm1	e1xo3A1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: Urm1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.20.30	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Beta-grasp domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF09138	Urm1 (Ubiquitin related modifier) (Urm1)	Urm1 (Ubiquitin related modifier)	Urm1 is a ubiquitin related protein that modifies proteins in the yeast ubiquitin-like pathway urmylation [1]. Structural comparisons and phylogenetic analysis of the ubiquitin superfamily has indicated that Urm1 has the most conserved structural and ...	Urm1 is a ubiquitin related protein that modifies proteins in the yeast ubiquitin-like pathway urmylation [1]. Structural comparisons and phylogenetic analysis of the ubiquitin superfamily has indicated that Urm1 has the most conserved structural and sequence features of the common ancestor of the entire superfamily [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	RIKEN cDNA 2900073H19	sulfur carrier activity molecular carrier activity protein tag activity molecular tag activity	organonitrogen compound metabolic process primary metabolic process protein urmylation organic substance metabolic process macromolecule modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal tRNA thio-modification cellular biosynthetic process organonitrogen compound metabolic process primary metabolic process protein urmylation organic substance metabolic process macromolecule modification metabolic process protein metabolic process macromolecule metabolic process post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal tRNA thio-modification cellular biosynthetic process RNA metabolic process nucleobase-containing compound metabolic process tRNA processing organic substance biosynthetic process RNA processing cellular metabolic process tRNA modification gene expression macromolecule biosynthetic process nucleic acid metabolic process tRNA metabolic process organic cyclic compound metabolic process RNA modification biosynthetic process ncRNA metabolic process nucleic acid catabolic process cellular process tRNA wobble uridine modification tRNA wobble base modification	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR015221	Ubiquitin-related modifier 1	Family
A	IPR016155	Molybdopterin synthase/thiamin biosynthesis sulphur carrier, beta-grasp	Homologous Superfamily
A	IPR012675	Beta-grasp domain superfamily	Homologous Superfamily

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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.