1B3I | pdb_00001b3i

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1b3ia_	All beta proteins	Cupredoxin-like	Cupredoxins	Plastocyanin/azurin-like	Plastocyanin	(Prochlorothrix hollandica ) [TaxId: 1223 ],	SCOPe (2.08)

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Cupredoxins	8034750	3000886	SCOP2B (2022-06-29)

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Copper-bind	e1b3iA1	A: beta sandwiches	X: Cupredoxin-like	H: Cupredoxin-related (From Topology)	T: Cupredoxin-related	F: Copper-bind	ECOD (1.6)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.420	Mainly Beta	Sandwich	Immunoglobulin-like	Cupredoxins - blue copper proteins	CATH (4.2.0)

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	PROTEIN (PLASTOCYANIN)	cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding electron transfer activity	-	intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region intracellular anatomical structure plasma membrane-derived chromatophore membrane membrane plasma membrane intracellular membraneless organelle plasma membrane-derived chromatophore thylakoid membrane intracellular organelle cell periphery cellular anatomical structure plasma membrane-derived thylakoid membrane organelle membraneless organelle plasma membrane region bacterial thylakoid cytoplasm photosynthetic membrane thylakoid

Chains	Accession	Name	Type
A	IPR002387	Plastocyanin	Family
A	IPR000923	Blue (type 1) copper domain	Domain
A	IPR028871	Blue (type 1) copper protein, binding site	Binding Site
A	IPR008972	Cupredoxin	Homologous Superfamily
A	IPR023511	Plastocyanin, cyanobacteria	Family
A	IPR001235	Blue (type 1) copper protein, plastocyanin-type	Family

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Monotopic/peripheral	All beta monotopic/peripheral	Multicopper oxidase	Plastocyanin/azurin-like

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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