2NXQ

Crystal structure of calcium binding protein 1 from Entamoeba histolytica: a novel arrangement of EF hand motifs

External Resource: Annotation

Domain Annotation: SCOP/SCOPe 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 Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d2nxqa_	All alpha proteins	EF Hand-like	EF-hand	Calmodulin-like	EHCABP	(Entamoeba histolytica HM-1:IMSS ) [TaxId: 294381 ],	SCOPe (2.08)
B	d2nxqb_	All alpha proteins	EF Hand-like	EF-hand	Calmodulin-like	EHCABP	(Entamoeba histolytica HM-1:IMSS ) [TaxId: 294381 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	EF-hand_7_7	e2nxqA1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_7	ECOD (1.6)
B	EF-hand_7_7	e2nxqB1	A: alpha arrays	X: EF-hand	H: EF-hand-related	T: EF-hand	F: EF-hand_7_7	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	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF13499	EF-hand domain pair (EF-hand_7)	EF-hand domain pair	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Calcium-binding protein	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding cytoskeletal protein binding actin binding protein-containing complex binding protein binding actin filament binding actin monomer binding	localization import into cell transport phagocytosis cellular process endocytosis establishment of localization vesicle-mediated transport regulation of cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of actin filament-based process regulation of actin filament bundle assembly cellular component biogenesis localization import into cell transport phagocytosis cellular process endocytosis establishment of localization vesicle-mediated transport regulation of cytoskeleton organization regulation of cellular process regulation of cellular component organization regulation of actin filament-based process regulation of actin filament bundle assembly cellular component biogenesis cellular component organization cellular component assembly actin filament bundle organization actin filament-based process cellular component organization or biogenesis regulation of biological process regulation of actin filament organization actin cytoskeleton organization biological regulation actin filament organization regulation of cellular component biogenesis regulation of organelle organization organelle organization actin filament bundle assembly regulation of actin cytoskeleton organization regulation of supramolecular fiber organization supramolecular fiber organization cytoskeleton organization regulation of localization positive regulation of cellular component organization positive regulation of biological process positive regulation of endocytosis positive regulation of cellular process regulation of endocytosis regulation of transport regulation of phagocytosis regulation of vesicle-mediated transport positive regulation of phagocytosis positive regulation of transport regulation of protein modification process regulation of catalytic activity regulation of protein phosphorylation regulation of transferase activity regulation of primary metabolic process regulation of nitrogen compound metabolic process organic substance metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process nitrogen compound metabolic process protein metabolic process phosphorus metabolic process protein modification process organonitrogen compound metabolic process protein phosphorylation phosphorylation cellular metabolic process regulation of protein metabolic process regulation of cellular metabolic process primary metabolic process regulation of protein kinase activity regulation of macromolecule metabolic process regulation of molecular function regulation of kinase activity macromolecule modification regulation of phosphorylation regulation of phosphorus metabolic process metabolic process macromolecule metabolic process regulation of metabolic process positive regulation of macropinocytosis regulation of macropinocytosis macropinocytosis positive regulation of pinocytosis regulation of pinocytosis pinocytosis	cell projection pseudopodium cellular anatomical entity plasma membrane bounded cell projection phagocytic cup cell periphery plasma membrane membrane intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A, B	IPR002048	EF-hand domain	Domain
A, B	IPR011992	EF-hand domain pair	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.