Annotations: 4IKB

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PX	e4ikbA1	A: a+b two layers	X: PX domain (From Topology)	H: PX domain (From Topology)	T: PX domain	F: PX	ECOD (1.6)
B	PX	e4ikbB2	A: a+b two layers	X: PX domain (From Topology)	H: PX domain (From Topology)	T: PX domain	F: PX	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.1520.10	Alpha Beta	2-Layer Sandwich	PX Domain	Phox-like domain	CATH (4.3.0)
B	3.30.1520.10	Alpha Beta	2-Layer Sandwich	PX Domain	Phox-like domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00787	PX domain (PX)	PX domain	PX domains bind to phosphoinositides.	Domain
B	PF00787	PX domain (PX)	PX domain	PX domains bind to phosphoinositides.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Sorting nexin-11	binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding	protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization cellular process protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization cellular process intracellular protein transport vesicle organization cellular component organization organelle organization cellular component organization or biogenesis	membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle
B	Sorting nexin-11	binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding	protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization cellular process protein localization cellular localization establishment of protein localization nitrogen compound transport transport organic substance transport intracellular transport establishment of localization localization protein transport establishment of localization in cell cellular macromolecule localization macromolecule localization cellular process intracellular protein transport vesicle organization cellular component organization organelle organization cellular component organization or biogenesis	membrane cellular anatomical entity membrane-bounded organelle intracellular anatomical structure endosome intracellular vesicle intracellular membrane-bounded organelle endomembrane system intracellular organelle cytoplasmic vesicle organelle cytoplasm vesicle

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR043544	Sorting nexin-10/11	Family
A	IPR001683	Phox homology	Domain
A	IPR036871	PX domain superfamily	Homologous Superfamily
B	IPR043544	Sorting nexin-10/11	Family
B	IPR001683	Phox homology	Domain
B	IPR036871	PX domain superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q9Y5W9	endometrial carcinoma epilepsy osteosarcoma
B	Pharos: Q9Y5W9	endometrial carcinoma epilepsy osteosarcoma

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM				PX 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.