Annotations: 3T5X

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e3t5xA3	A: alpha bundles	X: Fusion glycoprotein F2	H: HTH	T: winged helix domain	F:	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.10.10	Mainly Alpha	Orthogonal Bundle	Arc Repressor Mutant, subunit A	Winged helix-like DNA-binding domain superfamily/Winged helix DNA-binding domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01399	PCI domain (PCI)	PCI domain	This domain has also been called the PINT motif (Proteasome, Int-6, Nip-1 and TRIP-15) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B	26S proteasome complex subunit DSS1	protein binding binding ubiquitin binding ubiquitin-like protein binding	cellular response to stimulus double-strand break repair response to stimulus DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress recombinational repair metabolic process cellular process cellular response to stimulus double-strand break repair response to stimulus DNA recombination primary metabolic process DNA metabolic process nucleic acid metabolic process nucleobase-containing compound metabolic process cellular response to stress DNA damage response response to stress recombinational repair metabolic process cellular process macromolecule metabolic process double-strand break repair via homologous recombination DNA repair catabolic process proteasomal protein catabolic process protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process ubiquitin-dependent protein catabolic process protein metabolic process cellular localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport mRNA transport localization mRNA export from nucleus establishment of localization in cell RNA localization nuclear export nucleobase-containing compound transport RNA transport nucleic acid transport intracellular transport gene expression establishment of localization macromolecule biosynthetic process RNA export from nucleus establishment of RNA localization biosynthetic process macromolecule localization cellular component organization cellular component biogenesis proteasome assembly cellular component assembly protein-containing complex organization protein-containing complex assembly cellular component organization or biogenesis	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex catalytic complex peptidase complex proteasome complex endopeptidase complex intracellular protein-containing complex membrane-bounded organelle intracellular organelle integrator complex organelle cellular anatomical structure intracellular anatomical structure cytoplasm cytosol protein-containing complex catalytic complex peptidase complex proteasome complex endopeptidase complex intracellular protein-containing complex membrane-bounded organelle intracellular organelle integrator complex organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle proteasome regulatory particle proteasome regulatory particle, lid subcomplex proteasome accessory complex membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen
A	PCI domain-containing protein 2	DNA binding double-stranded DNA binding binding nucleic acid binding RNA binding	developmental process regulation of biological process negative regulation of hematopoietic progenitor cell differentiation regulation of cellular process regulation of developmental process cellular developmental process hemopoiesis negative regulation of developmental process biological regulation negative regulation of biological process cell development regulation of cell differentiation negative regulation of lymphoid progenitor cell differentiation regulation of lymphoid progenitor cell differentiation cell differentiation developmental process regulation of biological process negative regulation of hematopoietic progenitor cell differentiation regulation of cellular process regulation of developmental process cellular developmental process hemopoiesis negative regulation of developmental process biological regulation negative regulation of biological process cell development regulation of cell differentiation negative regulation of lymphoid progenitor cell differentiation regulation of lymphoid progenitor cell differentiation cell differentiation lymphoid progenitor cell differentiation anatomical structure development negative regulation of cellular process cellular process negative regulation of cell differentiation regulation of hematopoietic progenitor cell differentiation hematopoietic progenitor cell differentiation immune system development multicellular organism development multicellular organismal process spleen development immune system process animal organ development hematopoietic or lymphoid organ development system development cellular localization nitrogen compound transport nucleocytoplasmic transport transport nuclear transport mRNA transport localization mRNA export from nucleus establishment of localization in cell RNA localization nuclear export nucleobase-containing compound transport RNA transport nucleic acid transport poly(A)+ mRNA export from nucleus intracellular transport gene expression establishment of localization macromolecule biosynthetic process RNA export from nucleus establishment of RNA localization biosynthetic process macromolecule localization metabolic process macromolecule metabolic process establishment of protein localization protein transport intracellular protein localization transcription elongation by RNA polymerase II RNA metabolic process primary metabolic process nucleobase-containing compound biosynthetic process nucleic acid metabolic process RNA biosynthetic process nucleobase-containing compound metabolic process DNA-templated transcription nucleic acid biosynthetic process DNA-templated transcription elongation transcription by RNA polymerase II cellular component organization organelle organization chromosome organization cellular component organization or biogenesis transcription-dependent tethering of RNA polymerase II gene DNA at nuclear periphery post-transcriptional tethering of RNA polymerase II gene DNA at nuclear periphery regulation of leukocyte differentiation regulation of leukocyte activation regulation of cell activation mononuclear cell differentiation positive regulation of B cell differentiation lymphocyte differentiation regulation of cell development positive regulation of developmental process positive regulation of cell activation positive regulation of leukocyte activation regulation of immune system process positive regulation of immune system process positive regulation of cell development positive regulation of multicellular organismal process leukocyte differentiation positive regulation of biological process lymphocyte activation leukocyte activation positive regulation of lymphocyte activation regulation of B cell differentiation B cell differentiation positive regulation of hemopoiesis positive regulation of cell differentiation regulation of B cell activation regulation of multicellular organismal process positive regulation of cellular process regulation of lymphocyte differentiation regulation of multicellular organismal development B cell activation cell activation positive regulation of B cell activation regulation of hemopoiesis positive regulation of leukocyte differentiation positive regulation of lymphocyte differentiation regulation of lymphocyte activation chromatin organization chromatin remodeling negative regulation of macromolecule metabolic process regulation of biosynthetic process epigenetic regulation of gene expression negative regulation of metabolic process regulation of macromolecule metabolic process regulation of gene expression negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process negative regulation of gene expression, epigenetic regulation of macromolecule biosynthetic process regulation of metabolic process	membrane-bounded organelle intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle transcription export complex 2 cytoplasm endomembrane system organelle envelope nuclear envelope membrane-bounded organelle intracellular organelle protein-containing complex cellular anatomical structure intracellular anatomical structure organelle nucleus nuclear protein-containing complex intracellular membrane-bounded organelle transcription export complex 2 cytoplasm endomembrane system organelle envelope nuclear envelope nuclear pore nuclear basket nuclear pore

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B	IPR007834	DSS1/SEM1	Family
A	IPR045114	Csn12 family	Family
A	IPR036388	Winged helix-like DNA-binding domain superfamily	Homologous Superfamily
A	IPR000717	Proteasome component (PCI) domain	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
B	Pharos: P60896	squamous cell carcinoma bone disease non-small cell lung carcinoma split hand-foot malformation lung cancer osteoporosis medulloblastoma pneumonia subependymal giant cell astrocytoma
A	Pharos: Q5JVF3	acute myeloid leukemia malignant mesothelioma ovarian cancer atrial fibrillation medulloblastoma brain aneurysm osteosarcoma

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.