Annotations: 3HR0

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF20662	e3hr0A1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF20662	ECOD (1.6)
B	PF20662	e3hr0B1	A: alpha superhelices	X: Repetitive alpha hairpins	H: ARM repeat (From Topology)	T: ARM repeat	F: PF20662	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.287.1060	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	ESAT-6-like	CATH (4.3.0)
A	1.20.58.1970	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)
B	1.10.287.1060	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	ESAT-6-like	CATH (4.3.0)
B	1.20.58.1970	Mainly Alpha	Up-down Bundle	Methane Monooxygenase Hydroxylase	Chain G, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF20662	Conserved oligomeric Golgi complex subunit 4, C-terminal (COG4_C)	Conserved oligomeric Golgi complex subunit 4, C-terminal	-	Repeat

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	CoG4	identical protein binding protein binding binding	localization transport retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum cellular process establishment of localization Golgi vesicle transport vesicle-mediated transport retrograde transport, vesicle recycling within Golgi intra-Golgi vesicle-mediated transport protein localization establishment of protein localization cellular localization nitrogen compound transport organic substance transport localization transport retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum cellular process establishment of localization Golgi vesicle transport vesicle-mediated transport retrograde transport, vesicle recycling within Golgi intra-Golgi vesicle-mediated transport protein localization establishment of protein localization cellular localization nitrogen compound transport organic substance transport protein transport cellular macromolecule localization macromolecule localization glycosylation metabolic process cellular component organization organelle organization cellular component organization or biogenesis Golgi organization endomembrane system organization	membrane-bounded organelle Golgi membrane intracellular anatomical structure Golgi apparatus membrane cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle bounding membrane of organelle organelle cytoplasm organelle membrane cytosol membrane-bounded organelle Golgi membrane intracellular anatomical structure Golgi apparatus membrane cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle bounding membrane of organelle organelle cytoplasm organelle membrane cytosol Golgi apparatus subcompartment organelle subcompartment trans-Golgi network membrane trans-Golgi network Golgi transport complex protein-containing complex vesicle tethering complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR048682	Conserved oligomeric Golgi complex subunit 4	Family
A, B	IPR013167	COG4 transport protein, middle alpha-helical bundle	Domain
A, B	IPR048684	Conserved oligomeric Golgi complex subunit 4, C-terminal	Domain
A, B	IPR048680	Conserved oligomeric Golgi complex subunit 4, N-terminal	Domain

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A, B	Pharos: Q9H9E3	COG4-CDG congenital disorder of glycosylation microcephalic osteodysplastic dysplasia, Saul-Wilson type diabetes mellitus intellectual disability precancerous condition Condition, Preneoplastic inborn errors of metabolism ovarian cancer

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.