Annotations: 2XC7

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	PHAX-RBD-like domain	8051751	4007501	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	RNA_GG_binding domain-like	8051913	3002072	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	RNA_GG_bind	e2xc7A1	A: alpha arrays	X: PHAX RNA-binding domain (From Topology)	H: PHAX RNA-binding domain (From Topology)	T: PHAX RNA-binding domain	F: RNA_GG_bind	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.1440	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	PHAX RNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF10258	Phosphorylated adapter RNA export protein, RNA-binding domain (PHAX_RNA-bd)	Phosphorylated adapter RNA export protein, RNA-binding domain	The phosphorylated adaptor for RNA export (PHAX) protein transports U3 snoRNA from the nucleus after transcription [1, 2]. This entry represents the highly conserved U3 snoRNA-binding domain of PHAX, which is characterised by having two pairs of adja ...	The phosphorylated adaptor for RNA export (PHAX) protein transports U3 snoRNA from the nucleus after transcription [1, 2]. This entry represents the highly conserved U3 snoRNA-binding domain of PHAX, which is characterised by having two pairs of adjacent glycines with the sequence motif GGx12GG. This domain adopts a novel helical fold and binds non-specific single-stranded RNA and comprises five alpha-helices linked by short loops containing 1 to 4 residues, apart from helices alpha3 and 4 that are linked by 13 residues. The fold is unique to this kind of RNA binding domains which show no structural homology with other RNA-binding domains [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PHOSPHORYLATED ADAPTER RNA EXPORT PROTEIN	mRNA cap binding complex binding protein-containing complex binding binding toxic substance binding RNA binding organic cyclic compound binding nucleic acid binding	protein localization establishment of protein localization cellular localization nitrogen compound transport transport organic substance transport establishment of localization localization protein transport cellular macromolecule localization macromolecule localization cellular process regulation of cellular process negative regulation of biological process protein localization establishment of protein localization cellular localization nitrogen compound transport transport organic substance transport establishment of localization localization protein transport cellular macromolecule localization macromolecule localization cellular process regulation of cellular process negative regulation of biological process negative regulation of nitrogen compound metabolic process negative regulation of cellular metabolic process regulation of primary metabolic process nucleobase-containing compound metabolic process regulation of nitrogen compound metabolic process cellular catabolic process post-transcriptional regulation of gene expression regulation of RNA metabolic process heterocycle metabolic process organic substance biosynthetic process negative regulation of nucleobase-containing compound metabolic process regulation of nucleobase-containing compound metabolic process regulation of biological quality RNA catabolic process regulation of biological process cellular metabolic process negative regulation of metabolic process cellular nitrogen compound metabolic process primary metabolic process regulation of cellular metabolic process aromatic compound catabolic process cellular nitrogen compound catabolic process nucleobase-containing compound catabolic process organic cyclic compound metabolic process regulation of gene expression biosynthetic process heterocycle catabolic process nucleic acid catabolic process metabolic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of metabolic process negative regulation of RNA metabolic process negative regulation of cellular catabolic process catabolic process cellular biosynthetic process RNA metabolic process macromolecule catabolic process organic substance metabolic process negative regulation of cellular process nitrogen compound metabolic process negative regulation of macromolecule metabolic process negative regulation of catabolic process regulation of biosynthetic process biological regulation negative regulation of RNA catabolic process regulation of macromolecule metabolic process regulation of catabolic process gene expression macromolecule biosynthetic process nucleic acid metabolic process organic cyclic compound catabolic process regulation of cellular biosynthetic process RNA stabilization regulation of RNA stability regulation of cellular catabolic process organic substance catabolic process cellular aromatic compound metabolic process RNA transport nucleocytoplasmic transport snRNA export from nucleus nuclear transport nucleic acid transport intracellular transport RNA export from nucleus establishment of RNA localization establishment of localization in cell RNA localization ncRNA export from nucleus snRNA transport nucleobase-containing compound transport nuclear export	membrane-bounded organelle Cajal body intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen membrane-bounded organelle Cajal body intracellular anatomical structure nucleus membrane-enclosed lumen cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle lumen nuclear body intracellular organelle nucleoplasm organelle lumen organelle nuclear lumen cytoplasm cytosol somatodendritic compartment cell body neuronal cell body protein-containing complex ribonucleoprotein complex
B [auth P]	5'-(APUPCP*GP)-3'	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR038092	Phosphorylated adapter RNA export protein, RNA-binding domain superfamily	Homologous Superfamily
A	IPR039047	Phosphorylated adapter RNA export protein	Family
A	IPR019385	Phosphorylated adapter RNA export protein, RNA-binding domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9H814	atypical teratoid rhabdoid tumor exocrine pancreatic carcinoma glioblastoma malignant pancreatic neoplasm colorectal cancer gastric cancer hepatocellular carcinoma osteoporosis diabetes mellitus gastric carcinoma large cell medulloblastoma ovarian cancer

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.