Annotations: 4K1T

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d4k1ta1	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	automated matches	automated matches	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
A	d4k1ta2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
B	d4k1tb1	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	automated matches	automated matches	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
B	d4k1tb2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
C	d4k1tc1	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	automated matches	automated matches	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)
C	d4k1tc2	Artifacts	Tags	Tags	Tags	N-terminal Tags	(Staphylococcus aureus subsp. aureus NCTC 8325 ) [TaxId: 93061 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Trypsin-like serine proteases	8073978	3000114	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	Trypsin-like serine proteases	8073978	3000114	SCOP2B (2022-06-29)
C	SCOP2B Superfamily	Trypsin-like serine proteases	8073978	3000114	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	Trypsin_2	e4k1tA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Trypsin_2	ECOD (1.6)
B	Trypsin_2	e4k1tB1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Trypsin_2	ECOD (1.6)
C	Trypsin_2	e4k1tC1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel	F: Trypsin_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
B	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
C	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00089	Trypsin (Trypsin)	Trypsin	-	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	Serine protease SplB	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	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, B, C	IPR001254	Serine proteases, trypsin domain	Domain
A, B, C	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, B, C	IPR008353	Peptidase S1B, exfoliative toxin	Family
A, B, C	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
A, B, C	IPR008256	Peptidase S1B	Family
A, B, C	IPR028301	Serine proteases, V8 family, histidine active site	Active Site

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.