2PF4

Crystal structure of the full-length simian virus 40 small t antigen complexed with the protein phosphatase 2A Aalpha subunit

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2pf4a_	All alpha proteins	alpha-alpha superhelix	ARM repeat	HEAT repeat	Constant regulatory domain of protein phosphatase 2a, pr65alpha	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
B	d2pf4b_	All alpha proteins	alpha-alpha superhelix	ARM repeat	HEAT repeat	Constant regulatory domain of protein phosphatase 2a, pr65alpha	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
C	d2pf4c_	All alpha proteins	alpha-alpha superhelix	ARM repeat	HEAT repeat	Constant regulatory domain of protein phosphatase 2a, pr65alpha	house mouse (Mus musculus ) [TaxId: 10090 ],	SCOPe (2.08)
D	d2pf4d_	All alpha proteins	alpha-alpha superhelix	ARM repeat	HEAT repeat	Constant regulatory domain of protein phosphatase 2a, pr65alpha	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)
E	SCOP2B Superfamily	T-antigen specific domain-like	8033309	3001888	SCOP2B (2022-06-29)
F	SCOP2B Superfamily	T-antigen specific domain-like	8033309	3001888	SCOP2B (2022-06-29)
G	SCOP2B Superfamily	T-antigen specific domain-like	8033309	3001888	SCOP2B (2022-06-29)
H	SCOP2B Superfamily	T-antigen specific domain-like	8033309	3001888	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	PF02985,PF13646	e2pf4A1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF02985,PF13646	ECOD (1.6)
B	PF02985,PF13646	e2pf4B1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF02985,PF13646	ECOD (1.6)
C	PF02985,PF13646	e2pf4C1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF02985,PF13646	ECOD (1.6)
D	PF02985,PF13646	e2pf4D1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF02985,PF13646	ECOD (1.6)
E	F_UNCLASSIFIED	e2pf4E4	A: alpha bundles	X: Chaperone J-domain (From Topology)	H: Chaperone J-domain (From Topology)	T: Chaperone J-domain	F: F_UNCLASSIFIED	ECOD (1.6)
E	PF02380	e2pf4E3	A: few secondary structure elements	X: T-antigen specific domain-like (From Topology)	H: T-antigen specific domain-like (From Topology)	T: T-antigen specific domain-like	F: PF02380	ECOD (1.6)
F	F_UNCLASSIFIED	e2pf4F4	A: alpha bundles	X: Chaperone J-domain (From Topology)	H: Chaperone J-domain (From Topology)	T: Chaperone J-domain	F: F_UNCLASSIFIED	ECOD (1.6)
F	PF02380	e2pf4F3	A: few secondary structure elements	X: T-antigen specific domain-like (From Topology)	H: T-antigen specific domain-like (From Topology)	T: T-antigen specific domain-like	F: PF02380	ECOD (1.6)
G	F_UNCLASSIFIED	e2pf4G2	A: alpha bundles	X: Chaperone J-domain (From Topology)	H: Chaperone J-domain (From Topology)	T: Chaperone J-domain	F: F_UNCLASSIFIED	ECOD (1.6)
G	PF02380	e2pf4G1	A: few secondary structure elements	X: T-antigen specific domain-like (From Topology)	H: T-antigen specific domain-like (From Topology)	T: T-antigen specific domain-like	F: PF02380	ECOD (1.6)
H	F_UNCLASSIFIED	e2pf4H2	A: alpha bundles	X: Chaperone J-domain (From Topology)	H: Chaperone J-domain (From Topology)	T: Chaperone J-domain	F: F_UNCLASSIFIED	ECOD (1.6)
H	PF02380	e2pf4H1	A: few secondary structure elements	X: T-antigen specific domain-like (From Topology)	H: T-antigen specific domain-like (From Topology)	T: T-antigen specific domain-like	F: PF02380	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)
B	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)
C	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)
D	1.25.10.10	Mainly Alpha	Alpha Horseshoe	Leucine-rich Repeat Variant	Leucine-rich Repeat Variant	CATH (4.3.0)
E	1.10.287.110	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	DnaJ domain	CATH (4.3.0)
E	1.20.120.1860	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Small t-antigen, unique domain	CATH (4.3.0)
F	1.10.287.110	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	DnaJ domain	CATH (4.3.0)
F	1.20.120.1860	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Small t-antigen, unique domain	CATH (4.3.0)
G	1.10.287.110	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	DnaJ domain	CATH (4.3.0)
H	1.10.287.110	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	DnaJ domain	CATH (4.3.0)
H	1.20.120.1860	Mainly Alpha	Up-down Bundle	Four Helix Bundle (Hemerythrin (Met), subunit A)	Small t-antigen, unique domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF13646	HEAT repeats (HEAT_2)	HEAT repeats	-	Repeat
A, B, C, D	PF02985	HEAT repeat (HEAT)	HEAT repeat	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Serine/threonine-protein phosphatase 2A 65 kDa regulatory subunit A alpha isoform	protein antigen binding protein binding binding antigen binding enzyme regulator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity catalytic activity, acting on a protein hydrolase activity, acting on ester bonds phosphatase activity protein antigen binding protein binding binding antigen binding enzyme regulator activity phosphatase regulator activity molecular function regulator activity protein phosphatase regulator activity phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity catalytic activity, acting on a protein hydrolase activity, acting on ester bonds phosphatase activity hydrolase activity catalytic activity protein heterodimerization activity protein dimerization activity	meiotic spindle elongation meiotic chromosome segregation sexual reproduction spindle elongation reproductive process microtubule cytoskeleton organization meiotic cell cycle process cellular component organization meiotic nuclear division cell cycle cellular component organization or biogenesis chromosome segregation spindle organization cell cycle process meiotic spindle elongation meiotic chromosome segregation sexual reproduction spindle elongation reproductive process microtubule cytoskeleton organization meiotic cell cycle process cellular component organization meiotic nuclear division cell cycle cellular component organization or biogenesis chromosome segregation spindle organization cell cycle process meiotic cell cycle organelle fission meiotic spindle organization organelle organization nuclear division nuclear chromosome segregation cellular process microtubule-based process cytoskeleton organization mitotic nuclear division chromosome organization sister chromatid segregation mitotic cell cycle mitotic cell cycle process chromosome separation mitotic sister chromatid segregation mitotic sister chromatid separation sister chromatid cohesion meiotic sister chromatid cohesion, centromeric centromeric sister chromatid cohesion meiotic sister chromatid cohesion cellular response to stimulus positive regulation of cell communication regulation of cellular process positive regulation of signal transduction response to stimulus signal transduction in absence of ligand signaling positive regulation of biological process regulation of signal transduction regulation of programmed cell death positive regulation of extrinsic apoptotic signaling pathway in absence of ligand extrinsic apoptotic signaling pathway cell communication positive regulation of apoptotic signaling pathway positive regulation of response to stimulus extrinsic apoptotic signaling pathway in absence of ligand signal transduction positive regulation of cellular process regulation of biological process regulation of signaling positive regulation of programmed cell death cell surface receptor signaling pathway regulation of apoptotic process biological regulation positive regulation of extrinsic apoptotic signaling pathway cell death positive regulation of apoptotic process regulation of extrinsic apoptotic signaling pathway apoptotic signaling pathway regulation of response to stimulus regulation of extrinsic apoptotic signaling pathway in absence of ligand regulation of cell communication apoptotic process programmed cell death regulation of apoptotic signaling pathway positive regulation of signaling multicellular organismal process multicellular organismal-level homeostasis leukocyte homeostasis T cell homeostasis homeostatic process immune system process homeostasis of number of cells lymphocyte homeostasis multicellular organismal reproductive process female gamete generation gamete generation female meiotic nuclear division regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction negative regulation of signaling negative regulation of intracellular signal transduction negative regulation of phosphatidylinositol 3-kinase/protein kinase B signal transduction negative regulation of biological process intracellular signal transduction negative regulation of cell communication regulation of intracellular signal transduction intracellular signaling cassette negative regulation of cellular process negative regulation of response to stimulus negative regulation of signal transduction phosphatidylinositol 3-kinase/protein kinase B signal transduction meiotic cell cycle process involved in oocyte maturation cellular developmental process regulation of reproductive process cell development cellular process involved in reproduction in multicellular organism developmental process involved in reproduction oocyte development cell differentiation anatomical structure development cell maturation regulation of cell cycle developmental process regulation of cell cycle process oogenesis regulation of meiotic cell cycle process involved in oocyte maturation developmental maturation anatomical structure maturation germ cell development oocyte maturation oocyte differentiation	phosphatase complex protein-containing complex catalytic complex protein phosphatase type 2A complex protein serine/threonine phosphatase complex intracellular anatomical structure cytoplasm cellular anatomical entity cytosol intracellular organelle organelle intracellular non-membrane-bounded organelle chromosome, centromeric region chromosome phosphatase complex protein-containing complex catalytic complex protein phosphatase type 2A complex protein serine/threonine phosphatase complex intracellular anatomical structure cytoplasm cellular anatomical entity cytosol intracellular organelle organelle intracellular non-membrane-bounded organelle chromosome, centromeric region chromosome chromosomal region non-membrane-bounded organelle somatodendritic compartment cell projection dendrite dendritic tree neuron projection plasma membrane bounded cell projection synapse cell junction glutamatergic synapse cell body neuronal cell body cell periphery plasma membrane membrane lateral plasma membrane membrane-bounded organelle nucleus intracellular membrane-bounded organelle
E, F, G, H	Small T antigen	cation binding ion binding binding metal ion binding small molecule binding	symbiont-mediated perturbation of host cellular process symbiont-mediated suppression of host gene expression biological process involved in interspecies interaction between organisms modulation by symbiont of host process symbiont-mediated perturbation of host gene expression cellular process modulation of process of another organism biological process involved in interaction with host biological process involved in symbiotic interaction	host intracellular membrane-bounded organelle host cellular component host intracellular part host cell part host intracellular region cellular anatomical entity host cell nucleus host intracellular organelle host cell cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR016024	Armadillo-type fold	Homologous Superfamily
A, B, C, D	IPR021133	HEAT, type 2	Repeat
A, B, C, D	IPR011989	Armadillo-like helical	Homologous Superfamily
A, B, C, D	IPR000357	HEAT repeat	Repeat
E, F, G, H	IPR036092	Small/middle T-antigen superfamily	Homologous Superfamily
E, F, G, H	IPR001623	DnaJ domain	Domain
E, F, G, H	IPR003354	Small/middle T-antigen	Domain
E, F, G, H	IPR036869	Chaperone J-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.