4HX2 | pdb_00004hx2

Crystal structure of Streptomyces caespitosus sermetstatin in complex with Bacillus licheniformis subtilisin

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)
D	d4hx2d_	Alpha and beta proteins (a+b)	Subtilisin inhibitor	Subtilisin inhibitor	automated matches	automated matches	(Streptomyces caespitosus ) [TaxId: 53502 ],	SCOPe (2.08)
B	d4hx2b1	Alpha and beta proteins (a+b)	Subtilisin inhibitor	Subtilisin inhibitor	automated matches	automated matches	(Streptomyces caespitosus ) [TaxId: 53502 ],	SCOPe (2.08)
B	d4hx2b2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Streptomyces caespitosus ) [TaxId: 53502 ],	SCOPe (2.08)
C	d4hx2c_	Alpha and beta proteins (a/b)	Subtilisin-like	Subtilisin-like	Subtilases	automated matches	(Bacillus licheniformis ) [TaxId: 1402 ],	SCOPe (2.08)
A	d4hx2a_	Alpha and beta proteins (a/b)	Subtilisin-like	Subtilisin-like	Subtilases	automated matches	(Bacillus licheniformis ) [TaxId: 1402 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Subtilisin inhibitor	8070139	3001859	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Subtilisin inhibitor	8070139	3001859	SCOP2B (2022-06-29)
C	SCOP2 Family	Subtilases	8100483	4000409	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	Subtilisin-like	8100484	3000226	SCOP2 (2022-06-29)
A	SCOP2B Superfamily	Subtilisin-like	8100484	3000226	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)
D	SSI	e4hx2D1	A: a+b two layers	X: Subtilisin inhibitor (From Topology)	H: Subtilisin inhibitor (From Topology)	T: Subtilisin inhibitor	F: SSI	ECOD (1.6)
B	SSI	e4hx2B1	A: a+b two layers	X: Subtilisin inhibitor (From Topology)	H: Subtilisin inhibitor (From Topology)	T: Subtilisin inhibitor	F: SSI	ECOD (1.6)
C	Peptidase_S8	e4hx2C1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Subtilisin-like (From Topology)	T: Subtilisin-like	F: Peptidase_S8	ECOD (1.6)
A	Peptidase_S8	e4hx2A1	A: a/b three-layered sandwiches	X: Subtilisin-like	H: Subtilisin-like (From Topology)	T: Subtilisin-like	F: Peptidase_S8	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	3.30.350.10	Alpha Beta	2-Layer Sandwich	Subtilisin Inhibitor	Subtilisin inhibitor-like	CATH (4.3.0)
B	3.30.350.10	Alpha Beta	2-Layer Sandwich	Subtilisin Inhibitor	Subtilisin inhibitor-like	CATH (4.3.0)
C	3.40.50.200	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Peptidase S8/S53 domain	CATH (4.3.0)
A	3.40.50.200	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Peptidase S8/S53 domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
B, D	PF00720	Subtilisin inhibitor-like (SSI)	Subtilisin inhibitor-like		Domain
A, C	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

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B, D	Neutral proteinase inhibitor ScNPI	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity serine-type endopeptidase inhibitor activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity endopeptidase inhibitor activity cation binding ion binding binding metal ion binding small molecule binding	-	cellular anatomical structure extracellular region
A, C	KerA	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	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure extracellular region extracellular space

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, D	IPR036819	Subtilisin inhibitor-like superfamily	Homologous Superfamily
B, D	IPR000691	Proteinase inhibitor I16, Streptomyces subtilisin-type inhibitor	Family
B, D	IPR023549	Subtilisin inhibitor	Domain
A, C	IPR023828	Peptidase S8, subtilisin, Ser-active site	Active Site
A, C	IPR022398	Peptidase S8, subtilisin, His-active site	Active Site
A, C	IPR000209	Peptidase S8/S53 domain	Domain
A, C	IPR015500	Peptidase S8, subtilisin-related	Family
A, C	IPR036852	Peptidase S8/S53 domain superfamily	Homologous Superfamily
A, C	IPR023827	Peptidase S8, subtilisin, Asp-active site	Active Site
A, C	IPR050131	Subtilisin-like serine protease	Family
A, C	IPR037045	Peptidase S8 propeptide/proteinase inhibitor I9 superfamily	Homologous Superfamily
A, C	IPR034202	Subtilisin Carlsberg-like catalytic domain	Domain

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.