2SEC | pdb_00002sec

STRUCTURAL COMPARISON OF TWO SERINE PROTEINASE-PROTEIN INHIBITOR COMPLEXES. EGLIN-C-SUBTILISIN CARLSBERG AND CI-2-SUBTILISIN NOVO

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
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 [auth E]	d2sece_	Alpha and beta proteins (a/b)	Subtilisin-like	Subtilisin-like	Subtilases	Subtilisin	(Bacillus licheniformis ) [TaxId: 1402 ],	SCOPe (2.08)
B [auth I]	d2seci_	Alpha and beta proteins (a+b)	CI-2 family of serine protease inhibitors	CI-2 family of serine protease inhibitors	CI-2 family of serine protease inhibitors	Eglin C	medicinal leech (Hirudo medicinalis ) [TaxId: 6421 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth E]	SCOP2B Superfamily	Subtilisin-like	8040158	3000226	SCOP2B (2022-06-29)
B [auth I]	SCOP2B Superfamily	CI-2 serine protease inhibitor-like	8034986	3000827	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 E]		e2secE1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: Hexokinase_2	F:	ECOD (20:10:01)
B [auth I]		e2secI1	A: C-terminal subdomain in Lon-related proteases catalytic domains	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: DUF3197	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth E]	3.40.50.200	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	Peptidase S8/S53 domain	CATH (4.3.0)
B [auth I]	3.30.10.10	Alpha Beta	2-Layer Sandwich	Trypsin Inhibitor V	Chain A	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth E]	SUBTILISIN CARLSBERG	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
B [auth I]	EGLIN C	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	response to stimulus response to stress response to wounding	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth E]	IPR023828	Peptidase S8, subtilisin, Ser-active site	Active Site
A [auth E]	IPR010259	Peptidase S8 propeptide/proteinase inhibitor I9	Domain
A [auth E]	IPR022398	Peptidase S8, subtilisin, His-active site	Active Site
A [auth E]	IPR000209	Peptidase S8/S53 domain	Domain
A [auth E]	IPR015500	Peptidase S8, subtilisin-related	Family
A [auth E]	IPR036852	Peptidase S8/S53 domain superfamily	Homologous Superfamily
A [auth E]	IPR023827	Peptidase S8, subtilisin, Asp-active site	Active Site
A [auth E]	IPR050131	Subtilisin-like serine protease	Family
A [auth E]	IPR037045	Peptidase S8 propeptide/proteinase inhibitor I9 superfamily	Homologous Superfamily
A [auth E]	IPR034202	Subtilisin Carlsberg-like catalytic domain	Domain
B [auth I]	IPR000864	Proteinase inhibitor I13, potato inhibitor I	Family
B [auth I]	IPR036354	Proteinase inhibitor I13, potato inhibitor I 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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.