1ATB | pdb_00001atb

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1atba_	Small proteins	Serine protease inhibitors	Serine protease inhibitors	ATI-like	Ascaris trypsin inhibitor, ATI	pig roundworm (Ascaris suum ) [TaxId: 6253 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Serine protease inhibitors	8038884	3000944	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A		e1atbA1	A: alpha arrays	X: C-terminal subdomain in Lon-related proteases catalytic domains	H: C-terminal subdomain in Lon-related proteases catalytic domains	T: C-terminal subdomain in Lon-related proteases catalytic domains	F:	ECOD (v295.2)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.10.25.10	Mainly Beta	Ribbon	Laminin	Laminin	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	ASCARIS TRYPSIN INHIBITOR	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	-	cellular anatomical structure extracellular region

Chains	Accession	Name	Type
A	IPR036084	Serine protease inhibitor-like superfamily	Homologous Superfamily
A	IPR002919	Trypsin Inhibitor-like, cysteine rich domain	Domain

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.