Annotations: 2KRN

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2krna1	All beta proteins	SH3-like barrel	SH3-domain	automated matches	automated matches	mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
A	d2krna2	Artifacts	Tags	Tags	Tags	N-terminal Tags	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	SH3-domain	8088305	4000369	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SH3-domain	8090119	3000153	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	SH3_1	e2krnA1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: SH3_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.30.40	Mainly Beta	Roll	SH3 type barrels.	SH3 Domains	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF14604	Variant SH3 domain (SH3_9)	Variant SH3 domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CD2-associated protein	cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding SH3 domain binding protein domain specific binding cell adhesion molecule binding cadherin binding identical protein binding beta-catenin binding signaling receptor binding cytokine receptor binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding binding actin filament binding SH3 domain binding protein domain specific binding cell adhesion molecule binding cadherin binding identical protein binding beta-catenin binding signaling receptor binding cytokine receptor binding vascular endothelial growth factor receptor binding growth factor receptor binding	developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development developmental process multicellular organismal process gonad development reproductive system development reproductive process sex differentiation animal organ development developmental process involved in reproduction male gonad development male sex differentiation multicellular organism development development of primary male sexual characteristics development of primary sexual characteristics anatomical structure development reproductive structure development system development cellular process cell division apoptotic process cell death programmed cell death organonitrogen compound catabolic process organonitrogen compound metabolic process catabolic process primary metabolic process protein catabolic process macromolecule catabolic process organic substance metabolic process nitrogen compound metabolic process metabolic process protein metabolic process macromolecule metabolic process organic substance catabolic process cellular component organization cellular component biogenesis cellular component assembly protein-containing complex organization protein complex oligomerization protein-containing complex assembly cellular component organization or biogenesis protein heterooligomerization cell migration cell motility vesicle organization organelle organization actin cytoskeleton organization actin filament organization actin filament-based process supramolecular fiber organization cytoskeleton organization kidney development renal system development protein localization regulation of localization regulation of biological process cellular localization regulation of cellular process regulation of protein localization positive regulation of protein localization to nucleus biological regulation positive regulation of biological process regulation of protein localization to nucleus protein localization to nucleus localization regulation of cellular localization cellular macromolecule localization macromolecule localization protein localization to organelle positive regulation of protein localization positive regulation of cellular process cellular response to stimulus immune response-regulating cell surface receptor signaling pathway response to stimulus signaling cell communication positive regulation of response to stimulus immune response-activating signaling pathway immune response-regulating signaling pathway positive regulation of immune response regulation of immune system process signal transduction positive regulation of immune system process cell surface receptor signaling pathway immune response-activating cell surface receptor signaling pathway immune response T cell receptor signaling pathway regulation of response to stimulus immune system process regulation of immune response antigen receptor-mediated signaling pathway activation of immune response intracellular signal transduction intracellular signaling cassette phosphatidylinositol 3-kinase/protein kinase B signal transduction stress-activated MAPK cascade stress-activated protein kinase signaling cascade cellular response to stress response to stress MAPK cascade transforming growth factor beta1 production cellular biosynthetic process cellular metabolic process gene expression macromolecule biosynthetic process biosynthetic process cytokine production organic substance biosynthetic process transforming growth factor beta production regulation of cytoskeleton organization regulation of cellular component organization regulation of actin filament-based process regulation of organelle organization regulation of actin cytoskeleton organization response to transforming growth factor beta response to endogenous stimulus response to growth factor small GTPase-mediated signal transduction negative regulation of signaling regulation of small GTPase mediated signal transduction negative regulation of intracellular signal transduction negative regulation of biological process regulation of signal transduction negative regulation of cell communication regulation of intracellular signal transduction negative regulation of cellular process regulation of signaling negative regulation of response to stimulus negative regulation of small GTPase mediated signal transduction negative regulation of signal transduction regulation of cell communication cell junction organization synapse organization regulation of transforming growth factor beta production regulation of transforming growth factor beta1 production negative regulation of cellular metabolic process regulation of cytokine production regulation of multicellular organismal process negative regulation of macromolecule metabolic process regulation of biosynthetic process negative regulation of transforming growth factor beta1 production negative regulation of metabolic process regulation of cellular metabolic process negative regulation of cytokine production regulation of macromolecule metabolic process negative regulation of cellular biosynthetic process negative regulation of transforming growth factor beta production regulation of cellular biosynthetic process regulation of gene expression negative regulation of gene expression negative regulation of biosynthetic process negative regulation of macromolecule biosynthetic process regulation of macromolecule biosynthetic process negative regulation of multicellular organismal process regulation of metabolic process proteolysis involved in protein catabolic process proteasomal protein catabolic process proteasome-mediated ubiquitin-dependent protein catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis ubiquitin-dependent protein catabolic process cell cycle establishment of protein localization nitrogen compound transport transport positive regulation of establishment of protein localization positive regulation of secretion by cell protein localization to extracellular region positive regulation of protein transport regulation of secretion by cell secretion by cell positive regulation of secretion regulation of transport secretion organic substance transport regulation of establishment of protein localization establishment of protein localization to extracellular region export from cell regulation of protein transport protein secretion establishment of localization positive regulation of protein secretion regulation of protein secretion regulation of secretion positive regulation of transport protein transport immunological synapse formation cell-cell recognition cell activation cell recognition lymphocyte activation leukocyte activation defense response inflammatory response cell adhesion cell-cell adhesion import into cell regulation of receptor-mediated endocytosis regulation of vesicle-mediated transport vesicle-mediated transport endocytosis receptor-mediated endocytosis regulation of endocytosis	cell-cell junction anchoring junction cell junction cellular anatomical entity intracellular organelle intracellular anatomical structure podosome cytoskeleton organelle intracellular non-membrane-bounded organelle actin cytoskeleton non-membrane-bounded organelle cytoplasm cytosol cell-cell junction anchoring junction cell junction cellular anatomical entity intracellular organelle intracellular anatomical structure podosome cytoskeleton organelle intracellular non-membrane-bounded organelle actin cytoskeleton non-membrane-bounded organelle cytoplasm cytosol cell leading edge somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection membrane-bounded organelle intracellular vesicle intracellular membrane-bounded organelle cytoplasmic vesicle vesicle endocytic vesicle neuromuscular junction synapse ruffle perinuclear region of cytoplasm polymeric cytoskeletal fiber actin filament supramolecular fiber supramolecular polymer supramolecular complex protein-containing complex filamentous actin axon cell periphery cell cortex centrosome microtubule organizing center centriolar satellite microtubule cytoskeleton plasma membrane membrane nucleus membrane-enclosed lumen nucleolus intracellular organelle lumen organelle lumen fibrillar center nuclear lumen endosome endomembrane system late endosome

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A	IPR035777	CD2-associated protein, third SH3 domain	Domain
A	IPR001452	SH3 domain	Domain
A	IPR035775	CD2-associated protein, first SH3 domain	Domain
A	IPR035776	CD2-associated protein, second SH3 domain	Domain

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.