1AZZ | pdb_00001azz

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
D	d1azzd_	All beta proteins	Ecotin, trypsin inhibitor	Ecotin, trypsin inhibitor	Ecotin, trypsin inhibitor	Ecotin, trypsin inhibitor	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
C	d1azzc_	All beta proteins	Ecotin, trypsin inhibitor	Ecotin, trypsin inhibitor	Ecotin, trypsin inhibitor	Ecotin, trypsin inhibitor	(Escherichia coli ) [TaxId: 562 ],	SCOPe (2.08)
B	d1azzb_	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	Eukaryotic proteases	Crab collagenase	(Leptuca pugilator ) [TaxId: 6772 ],	SCOPe (2.08)
A	d1azza_	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	Eukaryotic proteases	Crab collagenase	(Leptuca pugilator ) [TaxId: 6772 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D	SCOP2B Superfamily	Ecotin, trypsin inhibitor	8041127	3001256	SCOP2B (2022-06-29)
C	SCOP2 Family	Ecotin, trypsin inhibitor	8028748	4002448	SCOP2 (2022-06-29)
C	SCOP2 Superfamily	Ecotin, trypsin inhibitor	8041127	3001256	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	Trypsin-like serine proteases	8042141	3000114	SCOP2B (2022-06-29)
A	SCOP2 Family	Eukaryotic proteases	8029762	4000286	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Trypsin-like serine proteases	8042141	3000114	SCOP2 (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
D	Copper-bind	e1azzD1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.1)
C	Copper-bind	e1azzC1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.1)
B	Trypsin	e1azzB1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: LigT-related	T: LigT-related	F: Trypsin	ECOD (v294.1)
A	Trypsin	e1azzA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: Alanine racemase-C	F: Trypsin	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
D	2.60.40.550	Mainly Beta	Sandwich	Immunoglobulin-like	Ecotin	CATH (4.3.0)
C	2.60.40.550	Mainly Beta	Sandwich	Immunoglobulin-like	Ecotin	CATH (4.3.0)
B	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)
A	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
C, D	PF03974	Ecotin (Ecotin)	Ecotin	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	ECOTIN	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 identical protein binding protein binding binding protein homodimerization activity protein dimerization activity	response to stimulus defense response response to stress	cellular anatomical structure extracellular region outer membrane-bounded periplasmic space cell envelope periplasmic space
A, B	COLLAGENASE	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	collagen catabolic process catabolic process metabolic process cellular process collagen metabolic process proteolysis primary metabolic process protein metabolic process macromolecule metabolic process	-

Chains	Accession	Name	Type
C, D	IPR005658	Proteinase inhibitor I11, ecotin	Family
C, D	IPR036198	Ecotin superfamily	Homologous Superfamily
C, D	IPR023084	Proteinase inhibitor I11, ecotin, gammaproteobacteria	Family
C, D	IPR027438	Ecotin, C-terminal	Homologous Superfamily
A, B	IPR001254	Serine proteases, trypsin domain	Domain
A, B	IPR050430	Peptidase S1 family serine proteases	Family
A, B	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A, B	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
A, B	IPR001314	Peptidase S1A, chymotrypsin family	Family
A, B	IPR043504	Peptidase_S1_PA_chymotrypsin	Unknown
A, B	IPR033116	Serine proteases, trypsin family, serine active site	Active Site

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.