1DPJ

THE STRUCTURE OF PROTEINASE A COMPLEXED WITH IA3 PEPTIDE INHIBITOR

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1dpja_	All beta proteins	Acid proteases	Acid proteases	Pepsin-like	Acid protease	(Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)
B	d1dpjb_	All alpha proteins	Non-globular all-alpha subunits of globular proteins	Proteinase A inhibitor IA3	Proteinase A inhibitor IA3	Proteinase A inhibitor IA3	baker's yeast (Saccharomyces cerevisiae ) [TaxId: 4932 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Pepsin-like	8030086	4002301	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Acid proteases	8042465	3001059	SCOP2 (2022-06-29)
B	SCOP2 Family	Proteinase A inhibitor IA3	8026721	4001540	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Proteinase A inhibitor IA3	8039100	3001794	SCOP2 (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	PF00026	e1dpjA3	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: PF00026	ECOD (1.6)
B	PF10466	e1dpjB1	A: extended segments	X: Proteinase A inhibitor IA3 (From Topology)	H: Proteinase A inhibitor IA3 (From Topology)	T: Proteinase A inhibitor IA3	F: PF10466	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.70.10	Mainly Beta	Beta Barrel	Cathepsin D, subunit A	domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00026	Eukaryotic aspartyl protease (Asp)	Eukaryotic aspartyl protease	-	Family
B	PF10466	Saccharopepsin inhibitor I34 (Inhibitor_I34)	Saccharopepsin inhibitor I34	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEINASE A	aspartic-type peptidase activity peptidase activity catalytic activity, acting on a protein hydrolase activity aspartic-type endopeptidase activity catalytic activity endopeptidase activity oligosaccharide binding binding carbohydrate binding disordered domain specific binding protein binding protein domain specific binding	cellular catabolic process catabolic process macroautophagy cellular metabolic process autophagy cellular process metabolic process process utilizing autophagic mechanism protein localization establishment of protein localization cellular localization nitrogen compound transport transport protein targeting cellular catabolic process catabolic process macroautophagy cellular metabolic process autophagy cellular process metabolic process process utilizing autophagic mechanism protein localization establishment of protein localization cellular localization nitrogen compound transport transport protein targeting establishment of protein localization to vacuole cytoplasm to vacuole targeting by the Cvt pathway localization cellular macromolecule localization establishment of localization in cell protein targeting to vacuole organic substance transport protein localization to vacuole intracellular transport establishment of localization establishment of protein localization to organelle protein transport macromolecule localization protein localization to organelle vacuolar transport intracellular protein transport microautophagy organonitrogen compound catabolic process organonitrogen compound metabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process organic substance metabolic process proteolysis protein metabolic process macromolecule metabolic process organic substance catabolic process autophagy of peroxisome pexophagy	membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle storage vacuole lytic vacuole vacuole fungal-type vacuole protein-containing complex endoplasmic reticulum membrane-bounded organelle intracellular organelle intracellular anatomical structure mitochondrion organelle cytoplasm cellular anatomical entity intracellular membrane-bounded organelle storage vacuole lytic vacuole vacuole fungal-type vacuole protein-containing complex endoplasmic reticulum endomembrane system
B	PROTEINASE INHIBITOR IA3 PEPTIDE	protein binding binding enzyme binding protease binding enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity aspartic-type endopeptidase inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity	negative regulation of hydrolase activity negative regulation of proteolysis regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity negative regulation of endopeptidase activity regulation of primary metabolic process negative regulation of peptidase activity organic substance metabolic process regulation of proteolysis proteolysis regulation of endopeptidase activity protein metabolic process negative regulation of protein metabolic process negative regulation of hydrolase activity negative regulation of proteolysis regulation of catalytic activity negative regulation of biological process negative regulation of catalytic activity negative regulation of endopeptidase activity regulation of primary metabolic process negative regulation of peptidase activity organic substance metabolic process regulation of proteolysis proteolysis regulation of endopeptidase activity protein metabolic process negative regulation of protein metabolic process negative regulation of macromolecule metabolic process regulation of biological process organonitrogen compound metabolic process regulation of protein metabolic process negative regulation of metabolic process regulation of peptidase activity biological regulation negative regulation of molecular function primary metabolic process regulation of macromolecule metabolic process regulation of molecular function regulation of hydrolase activity metabolic process macromolecule metabolic process regulation of metabolic process organonitrogen compound catabolic process catabolic process protein catabolic process in the vacuole protein catabolic process macromolecule catabolic process organic substance catabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity protein-containing complex membrane-bounded organelle intracellular organelle organelle nucleus intracellular membrane-bounded organelle vacuole

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR001461	Aspartic peptidase A1 family	Family
A	IPR033121	Peptidase family A1 domain	Domain
A	IPR021109	Aspartic peptidase domain superfamily	Homologous Superfamily
A	IPR001969	Aspartic peptidase, active site	Active Site
A	IPR033819	Saccharopepsin	Domain
B	IPR008956	Protease A inhibitor IA3 domain superfamily	Homologous Superfamily
B	IPR019507	Protease A inhibitor IA3	Family

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.