Annotations: 4IC4

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e4ic4A1	A: immunoglobulin/albumin-binding domain-like	X: EGF-related	H: Complement control module/SCR domain	T:	F:	ECOD (20:10:01)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF01237	Oxysterol-binding protein (Oxysterol_BP)	Oxysterol-binding protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Oxysterol-binding protein homolog 3	sterol binding binding steroid binding lipid binding sterol transfer activity lipid transporter activity lipid transfer activity transporter activity	pseudohyphal growth growth cellular process growth of unicellular organism as a thread of attached cells filamentous growth cell growth filamentous growth of a population of unicellular organisms invasive growth in response to glucose limitation invasive filamentous growth localization import into cell transport endocytosis establishment of localization pseudohyphal growth growth cellular process growth of unicellular organism as a thread of attached cells filamentous growth cell growth filamentous growth of a population of unicellular organisms invasive growth in response to glucose limitation invasive filamentous growth localization import into cell transport endocytosis establishment of localization vesicle-mediated transport catabolic process macroautophagy autophagy piecemeal microautophagy of the nucleus metabolic process microautophagy nucleophagy process utilizing autophagic mechanism sexual reproduction reproductive process conjugation with cellular fusion organelle fusion cellular component organization organelle organization nucleus organization karyogamy karyogamy involved in conjugation with cellular fusion cellular component organization or biogenesis maintenance of cell polarity establishment or maintenance of cell polarity secretion by cell exocytosis secretion export from cell macromolecule localization lipid localization lipid transport sterol transport organic hydroxy compound transport cellular localization nitrogen compound transport ER to Golgi ceramide transport intracellular lipid transport intracellular transport ceramide transport establishment of localization in cell reticulophagy	cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane membrane-bounded organelle intracellular membrane-bounded organelle endomembrane system intracellular organelle perinuclear endoplasmic reticulum perinuclear region of cytoplasm organelle cellular anatomical structure intracellular anatomical structure cytoplasm cytosol cell periphery plasma membrane membrane membrane-bounded organelle intracellular membrane-bounded organelle endomembrane system intracellular organelle perinuclear endoplasmic reticulum perinuclear region of cytoplasm organelle endoplasmic reticulum organelle subcompartment endoplasmic reticulum subcompartment nuclear outer membrane-endoplasmic reticulum membrane network organelle membrane endoplasmic reticulum membrane cell cortex cortical endoplasmic reticulum endoplasmic reticulum tubular network

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041680	Pleckstrin homology domain 8	Domain
A	IPR001849	Pleckstrin homology domain	Domain
A	IPR011993	PH-like domain superfamily	Homologous Superfamily
A	IPR018494	Oxysterol-binding protein, conserved site	Conserved Site
A	IPR037239	Oxysterol-binding protein superfamily	Homologous Superfamily
A	IPR000648	Oxysterol-binding protein	Family
A	IPR036598	GOLD domain superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Monotopic/peripheral	Alpha + Beta monotopic/peripheral	OSBP-related proteins	OSBP-related proteins

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 R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.