Annotations: 1SCJ

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1scja_	Alpha and beta proteins (a/b)	Subtilisin-like	Subtilisin-like	Subtilases	Subtilisin	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)
B	d1scjb_	Alpha and beta proteins (a+b)	Ferredoxin-like	Protease propeptides/inhibitors	Subtilase propeptides/inhibitors	Subtilisin prosegment	(Bacillus subtilis ) [TaxId: 1423 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Subtilases	8031947	4000409	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Subtilisin-like	8044325	3000226	SCOP2 (2022-06-29)
B	SCOP2 Family	Subtilase propeptides/inhibitors	8022870	4001246	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Protease propeptides/inhibitors	8035250	3001155	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	PF00082	e1scjA1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Subtilisin-like (From Topology)	T: Subtilisin-like	F: PF00082	ECOD (1.6)
B	PF05922	e1scjB1	A: a+b two layers	X: Alpha-beta plaits	H: Protease propeptides/inhibitors (From Topology)	T: Protease propeptides/inhibitors	F: PF05922	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.50.200	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Peptidase S8/S53 domain	CATH (4.3.0)
B	3.30.70.80	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Peptidase S8 propeptide/proteinase inhibitor I9	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00082	Subtilase family (Peptidase_S8)	Subtilase family	Subtilases are a family of serine proteases. They appear to have independently and convergently evolved an Asp/Ser/His catalytic triad, like that found in the trypsin serine proteases (see Pfam:PF00089). Structure is an alpha/beta fold containing a 7 ...	Subtilases are a family of serine proteases. They appear to have independently and convergently evolved an Asp/Ser/His catalytic triad, like that found in the trypsin serine proteases (see Pfam:PF00089). Structure is an alpha/beta fold containing a 7-stranded parallel beta sheet, order 2314567.	Domain
B	PF05922	Peptidase inhibitor I9 (Inhibitor_I9)	Peptidase inhibitor I9	This family includes the proteinase B inhibitor from Saccharomyces cerevisiae and the activation peptides from peptidases of the subtilisin family. The subtilisin propeptides are known to function as molecular chaperones, assisting in the folding of ...	This family includes the proteinase B inhibitor from Saccharomyces cerevisiae and the activation peptides from peptidases of the subtilisin family. The subtilisin propeptides are known to function as molecular chaperones, assisting in the folding of the mature peptidase [1], but have also been shown to act as 'temporary inhibitors' [2].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	SUBTILISIN E	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity cation binding ion binding binding metal ion binding small molecule binding	sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	extracellular region cellular anatomical entity
B	SUBTILISIN E	peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity cation binding ion binding binding metal ion binding small molecule binding	sporulation resulting in formation of a cellular spore developmental process anatomical structure morphogenesis anatomical structure formation involved in morphogenesis anatomical structure development sporulation organic substance metabolic process organonitrogen compound metabolic process proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR023828	Peptidase S8, subtilisin, Ser-active site	Active Site
A	IPR010259	Peptidase S8 propeptide/proteinase inhibitor I9	Domain
A	IPR022398	Peptidase S8, subtilisin, His-active site	Active Site
A	IPR000209	Peptidase S8/S53 domain	Domain
A	IPR015500	Peptidase S8, subtilisin-related	Family
A	IPR036852	Peptidase S8/S53 domain superfamily	Homologous Superfamily
A	IPR023827	Peptidase S8, subtilisin, Asp-active site	Active Site
A	IPR037045	Peptidase S8 propeptide/proteinase inhibitor I9 superfamily	Homologous Superfamily
A	IPR034202	Subtilisin Carlsberg-like catalytic domain	Domain
B	IPR023828	Peptidase S8, subtilisin, Ser-active site	Active Site
B	IPR010259	Peptidase S8 propeptide/proteinase inhibitor I9	Domain
B	IPR022398	Peptidase S8, subtilisin, His-active site	Active Site
B	IPR000209	Peptidase S8/S53 domain	Domain
B	IPR015500	Peptidase S8, subtilisin-related	Family
B	IPR036852	Peptidase S8/S53 domain superfamily	Homologous Superfamily
B	IPR023827	Peptidase S8, subtilisin, Asp-active site	Active Site
B	IPR037045	Peptidase S8 propeptide/proteinase inhibitor I9 superfamily	Homologous Superfamily
B	IPR034202	Subtilisin Carlsberg-like catalytic domain	Domain

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.