1LLA

CRYSTAL STRUCTURE OF DEOXYGENATED LIMULUS POLYPHEMUS SUBUNIT II HEMOCYANIN AT 2.18 ANGSTROMS RESOLUTION: CLUES FOR A MECHANISM FOR ALLOSTERIC REGULATION

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: SCOP/SCOPe Classification SCOP Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1llaa1	All alpha proteins	Hemocyanin, N-terminal domain	Hemocyanin, N-terminal domain	Hemocyanin, N-terminal domain	Hemocyanin, N-terminal domain	Atlantic horseshoe crab (Limulus polyphemus ) [TaxId: 6850 ],	SCOPe (2.08)
A	d1llaa2	All alpha proteins	Di-copper centre-containing domain	Di-copper centre-containing domain	Hemocyanin middle domain	Arthropod hemocyanin	Atlantic horseshoe crab (Limulus polyphemus ) [TaxId: 6850 ],	SCOPe (2.08)
A	d1llaa3	All beta proteins	Immunoglobulin-like beta-sandwich	E set domains	Arthropod hemocyanin, C-terminal domain	Arthropod hemocyanin, C-terminal domain	Atlantic horseshoe crab (Limulus polyphemus ) [TaxId: 6850 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	E set domains	8054963	3000070	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Hemocyanin N-terminal domain	8038049	3000757	SCOP2B (2022-06-29)
A	SCOP2B Superfamily	Di-copper centre-containing domain	8038071	3000773	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	Hemocyanin_C	e1llaA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Hemocyanin_C	ECOD (1.6)
A	Hemocyanin_M	e1llaA2	A: alpha arrays	X: Di-copper centre-containing domain (From Topology)	H: Di-copper centre-containing domain (From Topology)	T: Di-copper centre-containing domain	F: Hemocyanin_M	ECOD (1.6)
A	Hemocyanin_N	e1llaA3	A: alpha bundles	X: Hemocyanin-N (From Topology)	H: Hemocyanin-N (From Topology)	T: Hemocyanin-N	F: Hemocyanin_N	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1370.10	Mainly Alpha	Up-down Bundle	Hemocyanin, N-terminal domain	Hemocyanin, N-terminal domain	CATH (4.3.0)
A	2.60.40.1520	Mainly Beta	Sandwich	Immunoglobulin-like	Hemocyanin, C-terminal domain	CATH (4.3.0)
A	1.10.1280.10	Mainly Alpha	Orthogonal Bundle	di-copper center containing domain from catechol oxidase	Di-copper center containing domain from catechol oxidase	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00372	Hemocyanin, copper containing domain (Hemocyanin_M)	Hemocyanin, copper containing domain	This family includes arthropod hemocyanins and insect larval storage proteins.	Domain
A	PF03722	Hemocyanin, all-alpha domain (Hemocyanin_N)	Hemocyanin, all-alpha domain	This family includes arthropod hemocyanins and insect larval storage proteins.	Domain
A	PF03723	Hemocyanin, ig-like domain (Hemocyanin_C)	Hemocyanin, ig-like domain	This family includes arthropod hemocyanins and insect larval storage proteins.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	HEMOCYANIN (SUBUNIT TYPE II)	oxidoreductase activity catalytic activity oxygen carrier activity molecular carrier activity cation binding transition metal ion binding copper ion binding ion binding binding metal ion binding small molecule binding anion binding chloride ion binding	oxygen transport localization transport gas transport establishment of localization	extracellular region cellular anatomical entity

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005204	Hemocyanin, N-terminal	Domain
A	IPR036697	Hemocyanin, N-terminal domain superfamily	Homologous Superfamily
A	IPR002227	Tyrosinase copper-binding domain	Domain
A	IPR014756	Immunoglobulin E-set	Homologous Superfamily
A	IPR008922	Di-copper centre-containing domain superfamily	Homologous Superfamily
A	IPR037020	Hemocyanin, C-terminal domain superfamily	Homologous Superfamily
A	IPR000896	Hemocyanin/hexamerin middle domain	Domain
A	IPR013788	Hemocyanin/hexamerin	Family
A	IPR005203	Hemocyanin, C-terminal	Domain

RCSB PDB Core Operations are funded by the National Science Foundation (DBI-1832184), 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 R01GM133198.