Annotations: 2K6D

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2k6da_	All beta proteins	SH3-like barrel	SH3-domain	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2k6db2	Alpha and beta proteins (a+b)	beta-Grasp (ubiquitin-like)	Ubiquitin-like	Ubiquitin-related	Ubiquitin	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2k6db3	Artifacts	Tags	Tags	Tags	C-terminal Tags	human (Homo sapiens ) [TaxId: 9606 ],	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	8062088	4000369	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	SH3-domain	8062089	3000153	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Ubiquitin-like	8043829	3000157	SCOP2B (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	e2k6dA1	A: beta barrels	X: SH3	H: SH3	T: SH3	F: SH3_1	ECOD (1.6)
B	ubiquitin_1	e2k6dB1	A: a+b two layers	X: beta-Grasp	H: Ubiquitin-related	T: Ubiquitin-like	F: ubiquitin_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)
B	3.10.20.90	Alpha Beta	Roll	Ubiquitin-like (UB roll)	Phosphatidylinositol 3-kinase Catalytic Subunit	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
B	PF00240	Ubiquitin family (ubiquitin)	Ubiquitin family	This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry ...	This family contains a number of ubiquitin-like proteins: SUMO (smt3 homologue) (see Swiss:Q02724), Nedd8 (see Swiss:P29595), Elongin B (see Swiss:Q15370), Rub1 (see Swiss:Q9SHE7), and Parkin (see Swiss:O60260). A number of them are thought to carry a distinctive five-residue motif termed the proteasome-interacting motif (PIM), which may have a biologically significant role in protein delivery to proteasomes and recruitment of proteasomes to transcription sites [5].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SH3 domain-containing kinase-binding protein 1	SH3 domain binding protein binding binding protein domain specific binding ubiquitin protein ligase binding ubiquitin-like protein ligase binding enzyme binding	localization import into cell transport cellular process endocytosis establishment of localization vesicle-mediated transport apoptotic process cell death programmed cell death regulation of biological process signaling biological regulation cell-cell signaling localization import into cell transport cellular process endocytosis establishment of localization vesicle-mediated transport apoptotic process cell death programmed cell death regulation of biological process signaling biological regulation cell-cell signaling cell communication cell migration cell motility developmental process regulation of developmental process regulation of cell shape cell morphogenesis regulation of cell morphogenesis anatomical structure morphogenesis anatomical structure development regulation of biological quality regulation of anatomical structure morphogenesis cellular component organization organelle organization cellular component organization or biogenesis cytoskeleton organization multicellular organismal process regulation of cellular process regulation of leukocyte activation positive regulation of biological process regulation of cell activation lymphocyte activation leukocyte activation positive regulation of lymphocyte activation positive regulation of cell activation regulation of B cell activation positive regulation of leukocyte activation regulation of multicellular organismal process regulation of immune system process positive regulation of immune system process positive regulation of cellular process B cell activation cell activation positive regulation of B cell activation immune system process positive regulation of multicellular organismal process regulation of lymphocyte activation actin cytoskeleton organization actin filament organization actin filament-based process supramolecular fiber organization	cellular anatomical structure anchoring junction cell junction focal adhesion cell-substrate junction cell-cell junction intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane membrane-bounded organelle intracellular vesicle cellular anatomical structure anchoring junction cell junction focal adhesion cell-substrate junction cell-cell junction intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane membrane-bounded organelle intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cytoplasmic vesicle organelle vesicle endocytic vesicle GABA-ergic synapse synapse glutamatergic synapse cell projection neuron projection plasma membrane bounded cell projection cytoplasmic vesicle membrane vesicle membrane organelle membrane cytoskeleton membraneless organelle intracellular membraneless organelle postsynaptic density postsynapse neuron to neuron synapse postsynaptic specialization asymmetric synapse
B	Ubiquitin	protein tag activity molecular tag activity ubiquitin protein ligase binding protein binding binding ubiquitin-like protein ligase binding enzyme binding RNA binding nucleic acid binding	catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis metabolic process cellular process macromolecule metabolic process protein metabolic process protein ubiquitination macromolecule modification catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process modification-dependent macromolecule catabolic process modification-dependent protein catabolic process proteolysis metabolic process cellular process macromolecule metabolic process protein metabolic process protein ubiquitination macromolecule modification post-translational protein modification protein modification process protein modification by small protein conjugation protein modification by small protein conjugation or removal	membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane organelle endocytic vesicle membrane cytoplasm membrane-bounded organelle intracellular anatomical structure membrane intracellular vesicle intracellular membrane-bounded organelle intracellular organelle cellular anatomical structure cytoplasmic vesicle membrane bounding membrane of organelle cytoplasmic vesicle vesicle membrane organelle endocytic vesicle membrane cytoplasm vesicle organelle membrane endocytic vesicle extracellular exosome extracellular vesicle extracellular organelle extracellular region extracellular space extracellular membrane-bounded organelle cytosol endosome membrane endosome endomembrane system mitochondrial membrane mitochondrion organelle outer membrane organelle envelope mitochondrial envelope mitochondrial outer membrane outer membrane cell periphery plasma membrane nucleus membrane-enclosed lumen intracellular organelle lumen nucleoplasm organelle lumen nuclear lumen organelle subcompartment endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum endoplasmic reticulum membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR050384	Endophilin/SH3RF	Family
A	IPR036028	SH3-like domain superfamily	Homologous Superfamily
A	IPR035771	SH3 domain-containing kinase-binding protein 1, second SH3 domain	Domain
A	IPR001452	SH3 domain	Domain
A	IPR035772	SH3 domain-containing kinase-binding protein 1, third SH3 domain	Domain
A	IPR035770	SH3 domain-containing kinase-binding protein 1, first SH3 domain	Domain
B	IPR019954	Ubiquitin conserved site	Conserved Site
B	IPR000626	Ubiquitin-like domain	Domain
B	IPR019956	Ubiquitin domain	Domain
B	IPR050158	Ubiquitin and ubiquitin-like	Family
B	IPR029071	Ubiquitin-like domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q96B97	malignant colon neoplasm osteosarcoma pancreatic intraductal papillary-mucinous carcinoma primitive neuroectodermal tumor acute myeloid leukemia atypical teratoid rhabdoid tumor breast fibroadenoma glioblastoma large cell medulloblastoma malignant glioma non-small cell lung carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm Sjogren syndrome astrocytic tumor malignant colon neoplasm osteosarcoma pancreatic intraductal papillary-mucinous carcinoma primitive neuroectodermal tumor acute myeloid leukemia atypical teratoid rhabdoid tumor breast fibroadenoma glioblastoma large cell medulloblastoma malignant glioma non-small cell lung carcinoma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm Sjogren syndrome astrocytic tumor benign colon neoplasm colonic neoplasm interstitial cystitis malignant pancreatic neoplasm oligodendroglioma pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia tuberculosis atopic eczema breast carcinoma gastric carcinoma invasive ductal breast carcinoma malignant ependymoma medulloblastoma
B	Pharos: P0CG48	acute myeloid leukemia heart disease myocardial infarction pancreatic ductal adenocarcinoma astrocytic tumor lung cancer osteosarcoma renal cell carcinoma glioblastoma malignant pancreatic neoplasm ovarian cancer

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.