3D4U

Bovine thrombin-activatable fibrinolysis inhibitor (TAFIa) in complex with tick-derived carboxypeptidase inhibitor.

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	d3d4ua_	Alpha and beta proteins (a/b)	Phosphorylase/hydrolase-like	Zn-dependent exopeptidases	automated matches	automated matches	(Bos taurus ) [TaxId: 9913 ],	SCOPe (2.08)
B	d3d4ub1	Small proteins	Defensin-like	Defensin-like	Tick carboxypeptidase inhibitor-like	Carboxypeptidase inhibitor	(Rhipicephalus bursa ) [TaxId: 67831 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Pancreatic carboxypeptidase-like	8069424	4000582	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Zn-dependent exopeptidases	8069425	3000662	SCOP2 (2022-06-29)
B	SCOP2 Family	Tick carboxypeptidase inhibitor-like	8028068	4002790	SCOP2 (2022-06-29)
B	SCOP2 Family	Tick carboxypeptidase inhibitor-like	8028069	4002790	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Defensin-like	8040447	3000681	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Defensin-like	8040448	3000681	SCOP2 (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_M14	e3d4uA1	A: a/b three-layered sandwiches	X: Phosphorylase/hydrolase-like	H: Zn-dependent exopeptidases (From Topology)	T: Zn-dependent exopeptidases	F: Peptidase_M14	ECOD (1.6)
B	Inhibitor_I68_C	e3d4uB2	A: few secondary structure elements	X: Defensin-like	H: Defensin-related	T: Defensin-related	F: Inhibitor_I68_C	ECOD (1.6)
B	Inhibitor_I68_N	e3d4uB1	A: few secondary structure elements	X: Defensin-like	H: Defensin-related	T: Defensin-related	F: Inhibitor_I68_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.630.10	Alpha Beta	3-Layer(aba) Sandwich	Aminopeptidase	Zn peptidases	CATH (4.3.0)
B	3.30.1680.50	Alpha Beta	2-Layer Sandwich	ligand-binding face of the semaphorins, domain 2	Carboxypeptidase inhibitor, N-terminal domain	CATH (4.3.0)
B	2.20.20.10	Mainly Beta	Single Sheet	Anthopleurin-A	Anthopleurin-A	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00246	Zinc carboxypeptidase (Peptidase_M14)	Zinc carboxypeptidase		Domain
B	PF10468	Carboxypeptidase inhibitor I68 (Inhibitor_I68)	Carboxypeptidase inhibitor I68	This is a family of tick carboxypetidase inhibitors.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Carboxypeptidase B2	peptidase activity catalytic activity, acting on a protein metallocarboxypeptidase activity hydrolase activity metallopeptidase activity exopeptidase activity catalytic activity metalloexopeptidase activity carboxypeptidase activity cation binding transition metal ion binding zinc ion binding ion binding binding peptidase activity catalytic activity, acting on a protein metallocarboxypeptidase activity hydrolase activity metallopeptidase activity exopeptidase activity catalytic activity metalloexopeptidase activity carboxypeptidase activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding	multicellular organismal process regulation of body fluid levels response to stimulus regulation of response to external stimulus negative regulation of biological process regulation of response to wounding regulation of coagulation response to stress regulation of response to stress coagulation regulation of multicellular organismal process regulation of biological quality response to wounding regulation of hemostasis multicellular organismal process regulation of body fluid levels response to stimulus regulation of response to external stimulus negative regulation of biological process regulation of response to wounding regulation of coagulation response to stress regulation of response to stress coagulation regulation of multicellular organismal process regulation of biological quality response to wounding regulation of hemostasis wound healing regulation of biological process negative regulation of response to stimulus negative regulation of wound healing regulation of blood coagulation negative regulation of blood coagulation biological regulation hemostasis response to external stimulus negative regulation of response to wounding blood coagulation negative regulation of hemostasis fibrinolysis negative regulation of coagulation regulation of response to stimulus negative regulation of response to external stimulus regulation of wound healing negative regulation of multicellular organismal process proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	cellular anatomical structure extracellular region extracellular space
B	Carboxypeptidase inhibitor	enzyme regulator activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity peptidase regulator activity peptidase inhibitor activity endopeptidase regulator activity metalloendopeptidase inhibitor activity endopeptidase inhibitor activity toxin activity	biological process involved in interspecies interaction between organisms acquisition of nutrients from host biological process involved in interaction with host biological process involved in symbiotic interaction	cellular anatomical structure extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR036990	Metallocarboxypeptidase-like, propeptide	Homologous Superfamily
A	IPR033849	Carboxypeptidase B2	Domain
A	IPR003146	Carboxypeptidase, activation peptide	Domain
A	IPR000834	Peptidase M14, carboxypeptidase A	Domain
B	IPR019509	Carboxypeptidase inhibitor I68	Family
B	IPR023355	Myotoxin/Anemone neurotoxin domain 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.