Annotations: 8QX5

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	Rnf-Nqr	e8qx5B1	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Rnf-Nqr	ECOD (v295)
A	Putative_PNPOx,PNP_phzG_C	e8qx5A01	A: alpha arrays	X: HTH	H: HTH	T: Three-helical HTH	F: Putative_PNPOx,PNP_phzG_C	ECOD (v295)

Chains	Accession	Name	Description	Comments	Source
A, B	PF09150	Orange carotenoid protein, N-terminal (Carot_N)	Orange carotenoid protein, N-terminal	Members of this family adopt an alpha-helical structure consisting of two four-helix bundles. They are predominantly found in prokaryotic orange carotenoid protein, and carotenoid binding proteins [1].	Domain

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Orange carotenoid-binding domain-containing protein	ion binding binding anion binding chloride ion binding small molecule binding	detection of light stimulus response to light stimulus detection of external stimulus response to stimulus response to external stimulus detection of abiotic stimulus detection of stimulus light absorption response to abiotic stimulus response to radiation cellular process	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 protein-containing complex membrane protein complex light-harvesting complex phycobilisome

Chains	Accession	Name	Type
A, B	IPR015233	Orange carotenoid-binding protein, N-terminal	Domain
A, B	IPR036917	Orange carotenoid-binding protein, N-terminal domain 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.

8QX5 | pdb_00008qx5