3SSB

Structure of Insect Metalloproteinase Inhibitor in Complex with Thermolysin

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)
A	d3ssba_	Alpha and beta proteins (a+b)	Zincin-like	Metalloproteases ('zincins'), catalytic domain	Thermolysin-like	Thermolysin	(Bacillus thermoproteolyticus ) [TaxId: 1427 ],	SCOPe (2.08)
D [auth B]	d3ssbb_	Alpha and beta proteins (a+b)	Zincin-like	Metalloproteases ('zincins'), catalytic domain	Thermolysin-like	Thermolysin	(Bacillus thermoproteolyticus ) [TaxId: 1427 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Metalloproteases (zincins) catalytic domain	8042780	3001975	SCOP2B (2022-06-29)
D [auth B]	SCOP2B Superfamily	Metalloproteases (zincins) catalytic domain	8042780	3001975	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	Peptidase_M4_C	e3ssbA1	A: mixed a+b and a/b	X: Zincin-like	H: Metalloproteases (zincins) catalytic domain (From Topology)	T: Metalloproteases (zincins) catalytic domain	F: Peptidase_M4_C	ECOD (1.6)
D [auth B]	Peptidase_M4_C	e3ssbB1	A: mixed a+b and a/b	X: Zincin-like	H: Metalloproteases (zincins) catalytic domain (From Topology)	T: Metalloproteases (zincins) catalytic domain	F: Peptidase_M4_C	ECOD (1.6)
E [auth D]	Conotoxin_like_1	e3ssbD1	A: few secondary structure elements	X: EGF-like	H: Serine protease inhibitors (From Topology)	T: Serine protease inhibitors	F: Conotoxin_like_1	ECOD (1.6)
F [auth J]	TIL	e3ssbJ1	A: few secondary structure elements	X: EGF-like	H: Serine protease inhibitors (From Topology)	T: Serine protease inhibitors	F: TIL	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.10.170.10	Alpha Beta	Roll	Elastase	domain 1	CATH (4.3.0)
A	1.10.390.10	Mainly Alpha	Orthogonal Bundle	Neutral Protease	domain 2	CATH (4.3.0)
D [auth B]	3.10.170.10	Alpha Beta	Roll	Elastase	domain 1	CATH (4.3.0)
D [auth B]	1.10.390.10	Mainly Alpha	Orthogonal Bundle	Neutral Protease	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, D [auth B]	PF01447	Thermolysin metallopeptidase, catalytic domain (Peptidase_M4)	Thermolysin metallopeptidase, catalytic domain	-	Domain
A, D [auth B]	PF02868	Thermolysin metallopeptidase, alpha-helical domain (Peptidase_M4_C)	Thermolysin metallopeptidase, alpha-helical domain	-	Domain
B [auth C], E [auth D]	PF01826	Trypsin Inhibitor like cysteine rich domain (TIL)	Trypsin Inhibitor like cysteine rich domain	This family contains trypsin inhibitors as well as a domain found in many extracellular proteins. The domain typically contains ten cysteine residues that form five disulphide bonds. The cysteine residues that form the disulphide bonds are 1-7, 2-6, ...	This family contains trypsin inhibitors as well as a domain found in many extracellular proteins. The domain typically contains ten cysteine residues that form five disulphide bonds. The cysteine residues that form the disulphide bonds are 1-7, 2-6, 3-5, 4-10 and 8-9.	Domain
C [auth I], F [auth J]	PF01826	Trypsin Inhibitor like cysteine rich domain (TIL)	Trypsin Inhibitor like cysteine rich domain	This family contains trypsin inhibitors as well as a domain found in many extracellular proteins. The domain typically contains ten cysteine residues that form five disulphide bonds. The cysteine residues that form the disulphide bonds are 1-7, 2-6, ...	This family contains trypsin inhibitors as well as a domain found in many extracellular proteins. The domain typically contains ten cysteine residues that form five disulphide bonds. The cysteine residues that form the disulphide bonds are 1-7, 2-6, 3-5, 4-10 and 8-9.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D [auth B]	Thermolysin	cation binding ion binding binding metal ion binding small molecule binding peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase 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
B [auth C], E [auth D]	Inducible metalloproteinase inhibitor protein	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity metalloendopeptidase inhibitor activity endopeptidase inhibitor activity	cellular component organization extracellular matrix organization cellular process cellular component organization or biogenesis extracellular structure organization external encapsulating structure organization developmental process anatomical structure morphogenesis anatomical structure development wound healing response to stimulus response to stress response to wounding	extracellular region extracellular space cellular anatomical entity
C [auth I], F [auth J]	Inducible metalloproteinase inhibitor protein	enzyme regulator activity molecular function inhibitor activity peptidase regulator activity molecular function regulator activity enzyme inhibitor activity peptidase inhibitor activity endopeptidase regulator activity metalloendopeptidase inhibitor activity endopeptidase inhibitor activity	cellular component organization extracellular matrix organization cellular process cellular component organization or biogenesis extracellular structure organization external encapsulating structure organization developmental process anatomical structure morphogenesis anatomical structure development wound healing response to stimulus response to stress response to wounding	extracellular region extracellular space cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, D [auth B]	IPR001570	Peptidase M4, C-terminal	Domain
A, D [auth B]	IPR013856	Peptidase M4 domain	Domain
A, D [auth B]	IPR027268	Peptidase M4/M1, CTD superfamily	Homologous Superfamily
A, D [auth B]	IPR011096	FTP domain	Domain
A, D [auth B]	IPR025711	PepSY domain	Domain
A, D [auth B]	IPR023612	Peptidase M4	Family
B [auth C], E [auth D]	IPR036084	Serine protease inhibitor-like superfamily	Homologous Superfamily
B [auth C], E [auth D]	IPR002919	Trypsin Inhibitor-like, cysteine rich domain	Domain
C [auth I], F [auth J]	IPR036084	Serine protease inhibitor-like superfamily	Homologous Superfamily
C [auth I], F [auth J]	IPR002919	Trypsin Inhibitor-like, cysteine rich 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.