3CI2 | pdb_00003ci2

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d3ci2a_	Alpha and beta proteins (a+b)	CI-2 family of serine protease inhibitors	CI-2 family of serine protease inhibitors	CI-2 family of serine protease inhibitors	Chymotrypsin inhibitor CI-2	(Hordeum vulgare ) [TaxId: 4513 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	CI-2 serine protease inhibitor-like	8070227	3000827	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Staphylokinase	e3ci2A1	A: a/b three-layered sandwiches	X: ETN0001 domain-like	H: ETN0001 domain-like	T: Mss4-like	F: Staphylokinase	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.10.10	Alpha Beta	2-Layer Sandwich	Trypsin Inhibitor V	Chain A	CATH (4.3.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	CHYMOTRYPSIN INHIBITOR 2	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	response to stimulus response to stress response to wounding	-

Chains	Accession	Name	Type
A	IPR000864	Proteinase inhibitor I13, potato inhibitor I	Family
A	IPR036354	Proteinase inhibitor I13, potato inhibitor I 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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.

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