6O1F

Complex between soybean trypsin inhibitor beta1-tryptase and a humanized fab

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)
A	d6o1fa_	All beta proteins	Trypsin-like serine proteases	Trypsin-like serine proteases	Eukaryotic proteases	beta-Tryptase	Human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B [auth H]	d6o1fh_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth I]	d6o1fi_	All beta proteins	beta-Trefoil	STI-like	Kunitz (STI) inhibitors	automated matches	Soybean (Glycine max ) [TaxId: 3847 ],	SCOPe (2.08)
D [auth L]	d6o1fl2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D [auth L]	d6o1fl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Trypsin-like serine proteases	8032586	3000114	SCOP2B (2022-06-29)
C [auth I]	SCOP2B Superfamily	STI-like	8042032	3000715	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	Trypsin_1	e6o1fA1	A: beta barrels	X: cradle loop barrel	H: RIFT-related	T: FMN-binding split barrel 2	F: Trypsin_1	ECOD (1.6)
B [auth H]	V-set_8	e6o1fH2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
B [auth H]	C1-set_1	e6o1fH1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
C [auth I]	Kunitz_legume	e6o1fI1	A: beta duplicates or obligate multimers	X: beta-Trefoil (From Topology)	H: beta-Trefoil (From Topology)	T: beta-Trefoil	F: Kunitz_legume	ECOD (1.6)
D [auth L]	C1-set_4	e6o1fL1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
D [auth L]	V-set	e6o1fL2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.40.10.10	Mainly Beta	Beta Barrel	Thrombin, subunit H	Trypsin-like serine proteases	CATH (utative)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth I]	2.80.10.50	Mainly Beta	Trefoil	Trefoil (Acidic Fibroblast Growth Factor, subunit A)		CATH (utative)
D [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

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 [auth H]	Fab hu31A.v11	VH-CH1	Humanized (humanized)	IGHV3-4801, IGHV3-4804, IGHJ401, IGHJ402, IGHJ403, IGHG101, IGHG102, IGHG104, IGHG105, IGHG112, IGHG114, IGHG113, IGHG109, IGHG110, IGHG107, IGHG111	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202507-0)
D [auth L]	Fab hu31A.v11	L-KAPPA	Humanized (humanized)	IGKV1-1601, IGKV1-3901, IGKV1D-3901, IGKJ101, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202507-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H]	Heavy Chain	IGHV3	-	tryptase alpha/beta-1 \| trypsin inhibitor a	SAbDab (2025-02-28)
D [auth L]	Light Chain	IGKV1	Kappa	tryptase alpha/beta-1 \| trypsin inhibitor a	SAbDab (2025-02-28)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00089	Trypsin (Trypsin)	Trypsin		Domain
C [auth I]	PF00197	Trypsin and protease inhibitor (Kunitz_legume)	Trypsin and protease inhibitor		Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Tryptase alpha/beta-1	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 identical protein binding protein binding binding	cellular component organization cellular component disassembly extracellular matrix disassembly extracellular matrix organization cellular process cellular component organization or biogenesis extracellular structure organization external encapsulating structure organization proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process response to stimulus cellular component organization cellular component disassembly extracellular matrix disassembly extracellular matrix organization cellular process cellular component organization or biogenesis extracellular structure organization external encapsulating structure organization proteolysis metabolic process primary metabolic process protein metabolic process macromolecule metabolic process response to stimulus defense response response to stress	cellular anatomical structure extracellular region extracellular space
B [auth H]	Heavy Chain hu31A.v11	-	-	-
C [auth I]	Trypsin inhibitor A	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	-	-
D [auth L]	Light Chain hu31A.v11	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR009003	Peptidase S1, PA clan	Homologous Superfamily
A	IPR001314	Peptidase S1A, chymotrypsin family	Family
A	IPR033116	Serine proteases, trypsin family, serine active site	Active Site
A	IPR001254	Serine proteases, trypsin domain	Domain
A	IPR043504	Peptidase S1, PA clan, chymotrypsin-like fold	Homologous Superfamily
A	IPR018114	Serine proteases, trypsin family, histidine active site	Active Site
C [auth I]	IPR002160	Proteinase inhibitor I3, Kunitz legume	Family
C [auth I]	IPR011065	Kunitz inhibitor STI-like superfamily	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A	Pharos: Q15661	connective tissue disease Flushing contact dermatitis irritable bowel syndrome psoriasis cystic fibrosis lung adenocarcinoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma primary dysautonomia dysautonomia invasive ductal breast carcinoma lung cancer osteosarcoma pancreatic intraductal papillary-mucinous neoplasm connective tissue disease Flushing contact dermatitis irritable bowel syndrome psoriasis cystic fibrosis lung adenocarcinoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous carcinoma primary dysautonomia dysautonomia invasive ductal breast carcinoma lung cancer osteosarcoma pancreatic intraductal papillary-mucinous neoplasm Ehlers-Danlos syndrome malignant pancreatic neoplasm pancreatic ductal adenocarcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia

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.