Annotations: 4TU3

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B [auth A]	SCOP2B Superfamily	Winged helix DNA-binding domain	8106700	3000034	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth X]	Syja_N_N	e4tu3X2	A: a+b complex topology	X: Phosphoinositide phosphatase SAC1 N-terminal domain (From Topology)	H: Phosphoinositide phosphatase SAC1 N-terminal domain (From Topology)	T: Phosphoinositide phosphatase SAC1 N-terminal domain	F: Syja_N_N	ECOD (1.6)
A [auth X]	Syja_N_C	e4tu3X1	A: a/b three-layered sandwiches	X: Flavodoxin-like	H: Flavoproteins/Phosphotyrosine protein phosphatases-like	T: (Phosphotyrosine protein) phosphatases II	F: Syja_N_C	ECOD (1.6)
B [auth A]	GPP34	e4tu3A1	A: alpha arrays	X: Golgi phosphoprotein 3 (From Topology)	H: Golgi phosphoprotein 3 (From Topology)	T: Golgi phosphoprotein 3	F: GPP34	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth A]	1.10.3630.10	Mainly Alpha	Orthogonal Bundle	yeast vps74-n-term truncation variant fold	yeast vps74-n-term truncation variant domain like	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth X]	PF02383	SacI homology domain (Syja_N)	SacI homology domain	-	Family
B [auth A]	PF05719	Golgi phosphoprotein 3 (GPP34) (GPP34)	Golgi phosphoprotein 3 (GPP34)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth X]	Phosphoinositide phosphatase SAC1	phosphoric ester hydrolase activity phosphatidylinositol-3,5-bisphosphate 3-phosphatase activity hydrolase activity, acting on ester bonds phosphatidylinositol bisphosphate phosphatase activity phosphatase activity hydrolase activity phosphatidylinositol-3,5-bisphosphate phosphatase activity phosphatidylinositol phosphate phosphatase activity catalytic activity phosphatidylinositol-3-phosphate phosphatase activity phosphatidylinositol monophosphate phosphatase activity phosphatidylinositol-4-phosphate phosphatase activity phosphatidylinositol phosphate 4-phosphatase activity	membrane organization catabolic process transport macroautophagy membrane fusion organelle membrane fusion cellular metabolic process autophagy establishment of localization vesicle-mediated transport vesicle organization cellular component organization organelle fusion cellular catabolic process localization membrane organization catabolic process transport macroautophagy membrane fusion organelle membrane fusion cellular metabolic process autophagy establishment of localization vesicle-mediated transport vesicle organization cellular component organization organelle fusion cellular catabolic process localization organelle organization autophagosome-lysosome fusion cellular process metabolic process cellular component organization or biogenesis vesicle fusion process utilizing autophagic mechanism phosphatidylinositol metabolic process dephosphorylation glycerophospholipid metabolic process lipid modification primary metabolic process phospholipid metabolic process organophosphate metabolic process phosphatidylinositol dephosphorylation phospholipid dephosphorylation phosphate-containing compound metabolic process cellular lipid metabolic process glycerolipid metabolic process phosphorus metabolic process lipid metabolic process cellular homeostasis chemical homeostasis homeostatic process intracellular sphingolipid homeostasis intracellular chemical homeostasis lipid homeostasis	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle Golgi apparatus subcompartment Golgi apparatus organelle subcompartment Golgi cisterna endomembrane system Golgi stack membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle Golgi apparatus subcompartment Golgi apparatus organelle subcompartment Golgi cisterna endomembrane system Golgi stack Golgi medial cisterna cell cortex cortical endoplasmic reticulum cell periphery endoplasmic reticulum subcompartment endoplasmic reticulum endoplasmic reticulum tubular network Golgi membrane membrane bounding membrane of organelle organelle membrane mitochondrial membrane organelle outer membrane organelle envelope mitochondrial envelope mitochondrial outer membrane outer membrane serine palmitoyltransferase complex protein-containing complex catalytic complex palmitoyltransferase complex transferase complex host intracellular membrane-bounded organelle host cellular component cytoplasmic viral factory host intracellular part host cell cytoplasm part host intracellular organelle host cell viral assembly compartment viral factory host cell cytoplasm host cell part host intracellular region nuclear outer membrane-endoplasmic reticulum membrane network endoplasmic reticulum membrane
B [auth A]	Vacuolar protein sorting-associated protein 74	binding phospholipid binding lipid binding phosphatidylinositol phosphate binding phosphatidylinositol-4-phosphate binding phosphatidylinositol binding protein binding enzyme binding	carbohydrate derivative biosynthetic process cellular biosynthetic process cellular metabolic process glycoprotein biosynthetic process carbohydrate derivative metabolic process primary metabolic process glycoprotein metabolic process protein N-linked glycosylation protein glycosylation macromolecule biosynthetic process biosynthetic process glycosylation macromolecule modification macromolecule glycosylation carbohydrate derivative biosynthetic process cellular biosynthetic process cellular metabolic process glycoprotein biosynthetic process carbohydrate derivative metabolic process primary metabolic process glycoprotein metabolic process protein N-linked glycosylation protein glycosylation macromolecule biosynthetic process biosynthetic process glycosylation macromolecule modification macromolecule glycosylation metabolic process cellular process protein metabolic process macromolecule metabolic process protein modification process protein localization Golgi to plasma membrane transport establishment of protein localization cellular localization nitrogen compound transport post-Golgi vesicle-mediated transport transport establishment of protein localization to plasma membrane Golgi to plasma membrane protein transport vesicle-mediated transport localization cellular macromolecule localization protein localization to cell periphery establishment of protein localization to membrane protein localization to plasma membrane localization within membrane protein localization to membrane establishment of localization vesicle-mediated transport to the plasma membrane protein transport macromolecule localization Golgi vesicle transport retrograde vesicle-mediated transport, Golgi to endoplasmic reticulum membrane organization vesicle budding from membrane Golgi vesicle budding cellular component organization vesicle organization organelle organization cellular component organization or biogenesis protein mannosylation protein O-linked mannosylation mannosylation protein O-linked glycosylation maintenance of protein location protein localization to Golgi apparatus maintenance of location maintenance of location in cell maintenance of protein location in cell protein localization to organelle protein retention in Golgi apparatus regulation of cellular process regulation of lipid metabolic process glycerophospholipid metabolic process regulation of primary metabolic process phospholipid metabolic process regulation of phosphate metabolic process phosphate-containing compound metabolic process phosphorus metabolic process phosphatidylinositol metabolic process regulation of biological process regulation of dephosphorylation dephosphorylation biological regulation regulation of phospholipid metabolic process regulation of cellular metabolic process lipid modification regulation of macromolecule metabolic process regulation of phosphatidylinositol dephosphorylation organophosphate metabolic process phosphatidylinositol dephosphorylation phospholipid dephosphorylation cellular lipid metabolic process regulation of phosphorus metabolic process glycerolipid metabolic process regulation of metabolic process lipid metabolic process cellular response to stimulus cellular response to topologically incorrect protein response to stimulus signaling endoplasmic reticulum unfolded protein response cellular response to unfolded protein response to unfolded protein intracellular signal transduction cell communication cellular response to stress response to stress response to topologically incorrect protein signal transduction response to endoplasmic reticulum stress Golgi organization endomembrane system organization	membrane-bounded organelle intracellular anatomical structure Golgi apparatus subcompartment Golgi apparatus organelle subcompartment Golgi cisterna cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle Golgi stack cytoplasm Golgi medial cisterna membrane-bounded organelle intracellular anatomical structure Golgi apparatus subcompartment Golgi apparatus organelle subcompartment Golgi cisterna cellular anatomical entity intracellular membrane-bounded organelle endomembrane system intracellular organelle organelle Golgi stack cytoplasm Golgi medial cisterna trans-Golgi network Golgi membrane membrane bounding membrane of organelle organelle membrane cytosol Golgi cisterna membrane nucleus

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth X]	IPR002013	SAC domain	Domain
B [auth A]	IPR008628	Golgi phosphoprotein 3-like	Family
B [auth A]	IPR038261	Golgi phosphoprotein 3-like domain superfamily	Homologous Superfamily

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.