1GKA | pdb_00001gka

The molecular basis of the coloration mechanism in lobster shell. beta-crustacyanin at 3.2 A resolution

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 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	d1gkab_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Alpha-crustacyanin	(Homarus gammarus ) [TaxId: 6707 ],	SCOPe (2.08)
A	d1gkaa_	All beta proteins	Lipocalins	Lipocalins	Retinol binding protein-like	Alpha-crustacyanin	(Homarus gammarus ) [TaxId: 6707 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2 Family	Retinol binding protein-like	8068814	4002493	SCOP2 (2022-06-29)
B	SCOP2 Superfamily	Lipocalins	8068815	3001332	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Lipocalin	e1gkaB1	A: beta barrels	X: Lipocalins/Streptavidin	H: Lipocalins	T: Lipocalins	F: Lipocalin	ECOD (develop294)
A	Autotransporter	e1gkaA1	A: alpha bundles	X: Cloacin translocation domain	H: beta-Prism I	T: beta-Prism I	F: Autotransporter	ECOD (develop294)

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
B	CRUSTACYANIN A2 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
A	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
B	IPR022271	Lipocalin, ApoD type	Family
B	IPR012674	Calycin	Homologous Superfamily
B	IPR003057	Invertebrate colouration protein	Family
B	IPR000566	Lipocalin/cytosolic fatty-acid binding domain	Domain
B	IPR022272	Lipocalin family conserved site	Conserved Site
A	IPR022271	Lipocalin, ApoD type	Family
A	IPR012674	Calycin	Homologous Superfamily
A	IPR003057	Invertebrate colouration protein	Family
A	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.