Annotations: 3HIE

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF15277	e3hieA1	A: beta barrels	X: PH domain-like	H: PH domain-like (From Topology)	T: PH domain-like	F: PF15277	ECOD (1.6)
B	PF15277	e3hieB1	A: beta barrels	X: PH domain-like	H: PH domain-like (From Topology)	T: PH domain-like	F: PF15277	ECOD (1.6)
C	PF15277	e3hieC1	A: beta barrels	X: PH domain-like	H: PH domain-like (From Topology)	T: PH domain-like	F: PF15277	ECOD (1.6)
D	PF15277	e3hieD2	A: beta barrels	X: PH domain-like	H: PH domain-like (From Topology)	T: PH domain-like	F: PF15277	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.30.29.90	Mainly Beta	Roll	PH-domain like		CATH (4.3.0)
B	2.30.29.90	Mainly Beta	Roll	PH-domain like		CATH (4.3.0)
C	2.30.29.90	Mainly Beta	Roll	PH-domain like		CATH (4.3.0)
D	2.30.29.90	Mainly Beta	Roll	PH-domain like		CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C, D	PF15277	Exocyst complex component SEC3 N-terminal PIP2 binding PH (Sec3-PIP2_bind)	Exocyst complex component SEC3 N-terminal PIP2 binding PH	This is the N-terminal domain of fungal and eukaryotic Sec3 proteins. Sec3 is a component of the exocyst complex that is involved in the docking of exocytic vesicles with fusion sites on the plasma membrane.This N-terminal domain contains a cryptic p ...	This is the N-terminal domain of fungal and eukaryotic Sec3 proteins. Sec3 is a component of the exocyst complex that is involved in the docking of exocytic vesicles with fusion sites on the plasma membrane.This N-terminal domain contains a cryptic pleckstrin homology (PH) fold, and all six positively charged lysine and arginine residues in the PH domain predicted to bind the PIP2 head group are conserved. The exocyst complex is essential for many exocytic events, by tethering vesicles at the plasma membrane for fusion. In fission yeast, polarised exocytosis for growth relies on the combined action of the exocyst at cell poles and myosin-driven transport along actin cables [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Exocyst complex component SEC3	binding ion binding phosphatidylinositol-4,5-bisphosphate binding anion binding phosphatidylinositol bisphosphate binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol binding small molecule binding small GTPase binding protein binding enzyme binding GTPase binding	cellular component organization organelle organization organelle inheritance cellular process cellular component organization or biogenesis endoplasmic reticulum inheritance endoplasmic reticulum organization endomembrane system organization Golgi to plasma membrane transport cellular localization post-Golgi vesicle-mediated transport transport localization within membrane establishment of localization cellular component organization organelle organization organelle inheritance cellular process cellular component organization or biogenesis endoplasmic reticulum inheritance endoplasmic reticulum organization endomembrane system organization Golgi to plasma membrane transport cellular localization post-Golgi vesicle-mediated transport transport localization within membrane establishment of localization vesicle-mediated transport vesicle-mediated transport to the plasma membrane localization Golgi vesicle transport protein-containing complex organization secretion exocyst assembly export from cell membrane docking cellular component biogenesis organelle localization by membrane tethering cellular component assembly secretion by cell exocytosis organelle localization protein-containing complex assembly vesicle docking exocytic process vesicle docking involved in exocytosis protein localization establishment of protein localization nitrogen compound transport organic substance transport protein transport cellular macromolecule localization macromolecule localization exocyst localization protein-containing complex localization	incipient cellular bud site cellular anatomical entity site of polarized growth cellular bud cellular bud tip cell projection mating projection cell tip mating projection tip cell pole plasma membrane bounded cell projection cell periphery plasma membrane membrane incipient cellular bud site cellular anatomical entity site of polarized growth cellular bud cellular bud tip cell projection mating projection cell tip mating projection tip cell pole plasma membrane bounded cell projection cell periphery plasma membrane membrane ascospore-type prospore prospore membrane intracellular immature spore cellular bud neck intracellular anatomical structure cytoplasm protein-containing complex cell cortex exocyst vesicle tethering complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR048628	Exocyst complex component Sec3, C-terminal	Domain
A, B, C, D	IPR028258	Exocyst complex component Sec3, PIP2-binding N-terminal domain	Domain
A, B, C, D	IPR019160	Exocyst complex component Sec3, coiled-coil	Domain

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 R01GM133198.