1S44 | pdb_00001s44

The structure and refinement of apocrustacyanin C2 to 1.6A resolution and the search for differences between this protein and the homologous apoproteins A1 and C1.

External Resource: Annotation

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

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1s44b_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Alpha-crustacyanin	(Homarus gammarus ) [TaxId: 6707 ],	SCOPe (2.08)
A	d1s44a_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Alpha-crustacyanin	(Homarus gammarus ) [TaxId: 6707 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Lipocalin_2	e1s44B1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins (From Topology)	T: Lipocalins	F: Lipocalin_2	ECOD (1.6)
A	Lipocalin_2	e1s44A1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins (From Topology)	T: Lipocalins	F: Lipocalin_2	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)
A	2.40.128.20	Mainly Beta	Beta Barrel	Lipocalin	Calycin beta-barrel core domain	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Crustacyanin A1 subunit	binding pigment binding	primary metabolic process metabolic process cellular process lipid metabolic process response to oxidative stress response to stimulus response to stress response to chemical response to oxygen-containing compound response to reactive oxygen species	cellular anatomical structure intracellular anatomical structure cytoplasm extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR022271	Lipocalin, ApoD type	Family
A, B	IPR012674	Calycin	Homologous Superfamily
A, B	IPR003057	Invertebrate colouration protein	Family
A, B	IPR000566	Lipocalin/cytosolic fatty-acid binding 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.