5HVH | pdb_00005hvh

Crystal Structure of Thrombin-activatable Fibrinolysis Inhibitor in Complex with two Inhibitory Nanobodies

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Pharos: Disease Associations

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d5hvhb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	alpaca (Vicugna pacos ) [TaxId: 30538 ],	SCOPe (2.08)
B	d5hvhb2	Artifacts	Tags	Tags	Tags	C-terminal Tags	alpaca (Vicugna pacos ) [TaxId: 30538 ],	SCOPe (2.08)
B	d5hvhb3	Artifacts	Tags	Tags	Tags	N-terminal Tags	alpaca (Vicugna pacos ) [TaxId: 30538 ],	SCOPe (2.08)
C	d5hvhc1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	alpaca (Vicugna pacos ) [TaxId: 30538 ],	SCOPe (2.08)
C	d5hvhc2	Artifacts	Tags	Tags	Tags	C-terminal Tags	alpaca (Vicugna pacos ) [TaxId: 30538 ],	SCOPe (2.08)
C	d5hvhc3	Artifacts	Tags	Tags	Tags	N-terminal Tags	alpaca (Vicugna pacos ) [TaxId: 30538 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Zn-dependent exopeptidases	8069427	3000662	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	Propep_M14	e5hvhA2	A: a+b two layers	X: Alpha-beta plaits	H: Protease propeptides/inhibitors (From Topology)	T: Protease propeptides/inhibitors	F: Propep_M14	ECOD (1.6)
A	Peptidase_M14	e5hvhA1	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	V-set_1	e5hvhB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_1	ECOD (1.6)
C	V-set_1	e5hvhC1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.70.340	Alpha Beta	2-Layer Sandwich	Alpha-Beta Plaits	Metallocarboxypeptidase-like	CATH (4.3.0)
A	3.40.630.10	Alpha Beta	3-Layer(aba) Sandwich	Aminopeptidase	Zn peptidases	CATH (4.3.0)
B	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
B	VHH-A204	VH	Vicugna pacos (alpaca)	IGHV3S5301, IGHJ401	V-DOMAIN VH	IG	(VH)	IMGT (202546-0)
C	VHH-i83	VH	Vicugna pacos (alpaca)	IGHV3S5301, IGHJ401	V-DOMAIN VH	IG	(VH)	IMGT (202546-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B	Heavy Chain	IGHV1	-	carboxypeptidase b2	SAbDab (2025-11-28)
C	Heavy Chain	IGHV1	-	carboxypeptidase b2	SAbDab (2025-11-28)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF02244	Carboxypeptidase activation peptide (Propep_M14)	Carboxypeptidase activation peptide	Carboxypeptidases are found in abundance in pancreatic secretions. The pro-segment moiety (activation peptide) accounts for up to a quarter of the total length of the peptidase, and is responsible for modulation of folding and activity of the pro- ...	Carboxypeptidases are found in abundance in pancreatic secretions. The pro-segment moiety (activation peptide) accounts for up to a quarter of the total length of the peptidase, and is responsible for modulation of folding and activity of the pro-enzyme.	Domain
A	PF00246	Zinc carboxypeptidase (Peptidase_M14)	Zinc carboxypeptidase		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 extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle organelle vesicle extracellular membrane-bounded organelle
B	VHH-a204	-	-	-
C	VHH-i83	-	-	-

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

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q96IY4	amenorrhea obesity disorder lung carcinoma ovarian cancer psoriasis lung adenocarcinoma non-small cell lung carcinoma pancreatic ductal adenocarcinoma thrombotic disease lung cancer Postpartum Amenorrhea

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.