2EHB

The structure of the C-terminal domain of the protein kinase AtSOS2 bound to the calcium sensor AtSOS3

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	d2ehba_	All alpha proteins	EF Hand-like	EF-hand	automated matches	automated matches	thale cress (Arabidopsis thaliana ) [TaxId: 3702 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	EF-hand	8079621	3001983	SCOP2B (2022-06-29)
B [auth D]	SCOP2 Family	NAF domain-like	8044947	4004218	SCOP2 (2022-06-29)
B [auth D]	SCOP2 Superfamily	KA1-like	8053863	3001856	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	F_UNCLASSIFIED	e2ehbA2	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: F_UNCLASSIFIED	ECOD (1.6)
A	PF00036	e2ehbA1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: PF00036	ECOD (1.6)
B [auth D]	PF03822	e2ehbD1	A: a+b two layers	X: TBP-like	H: Kinase associated domain 1, KA1 (From Topology)	T: Kinase associated domain 1, KA1	F: PF03822	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)
B [auth D]	3.30.310.80	Alpha Beta	2-Layer Sandwich	TATA-Binding Protein	Kinase associated domain 1, KA1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B [auth D]	PF03822	NAF domain (NAF)	NAF domain	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Calcineurin B-like protein 4	protein binding binding kinase binding enzyme binding cation binding ion binding calcium ion binding metal ion binding small molecule binding phosphoric ester hydrolase activity phosphoprotein phosphatase activity protein serine/threonine phosphatase activity catalytic activity, acting on a protein hydrolase activity, acting on ester bonds protein binding binding kinase binding enzyme binding cation binding ion binding calcium ion binding metal ion binding small molecule binding 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 calcium-dependent protein serine/threonine phosphatase activity catalytic activity	potassium ion homeostasis inorganic ion homeostasis homeostatic process cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis intracellular potassium ion homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis response to osmotic stress hypotonic response response to stimulus potassium ion homeostasis inorganic ion homeostasis homeostatic process cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis intracellular potassium ion homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis response to osmotic stress hypotonic response response to stimulus hypotonic salinity response response to stress response to abiotic stimulus response to salt stress cellular response to stimulus regulation of biological process regulation of cellular process signaling biological regulation intracellular signal transduction cell communication calcium-mediated signaling intracellular signaling cassette cellular process signal transduction detection of stimulus response to metal ion response to chemical detection of chemical stimulus detection of calcium ion response to calcium ion response to inorganic substance	phosphatase complex protein-containing complex catalytic complex calcineurin complex protein serine/threonine phosphatase complex intracellular protein-containing complex cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm membrane-bounded organelle intracellular organelle phosphatase complex protein-containing complex catalytic complex calcineurin complex protein serine/threonine phosphatase complex intracellular protein-containing complex cell periphery plasma membrane membrane cellular anatomical entity intracellular anatomical structure cytoplasm membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle
B [auth D]	CBL-interacting serine/threonine-protein kinase 24	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding catalytic activity, acting on a protein kinase activity protein kinase activity transferase activity catalytic activity phosphotransferase activity, alcohol group as acceptor transferase activity, transferring phosphorus-containing groups protein serine/threonine kinase activity protein serine kinase activity	phosphorylation cellular metabolic process phosphate-containing compound metabolic process metabolic process cellular process phosphorus metabolic process cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation signal transduction cell communication phosphorylation cellular metabolic process phosphate-containing compound metabolic process metabolic process cellular process phosphorus metabolic process cellular response to stimulus regulation of biological process regulation of cellular process response to stimulus signaling biological regulation signal transduction cell communication response to osmotic stress response to stress response to abiotic stimulus response to salt stress	membrane-bounded organelle vacuolar membrane plant-type vacuole membrane intracellular anatomical structure membrane vacuole cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle bounding membrane of organelle organelle plant-type vacuole cytoplasm organelle membrane membrane-bounded organelle vacuolar membrane plant-type vacuole membrane intracellular anatomical structure membrane vacuole cellular anatomical entity intracellular membrane-bounded organelle intracellular organelle bounding membrane of organelle organelle plant-type vacuole cytoplasm organelle membrane nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR045198	Calcineurin B-like	Family
A	IPR002048	EF-hand domain	Domain
A	IPR011992	EF-hand domain pair	Homologous Superfamily
B [auth D]	IPR017441	Protein kinase, ATP binding site	Binding Site
B [auth D]	IPR004041	NAF domain	Domain
B [auth D]	IPR011009	Protein kinase-like domain superfamily	Homologous Superfamily
B [auth D]	IPR000719	Protein kinase domain	Domain
B [auth D]	IPR018451	NAF/FISL domain	Domain
B [auth D]	IPR008271	Serine/threonine-protein kinase, active site	Active Site

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.