Annotations: 3CS1

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	HRDC	e3cs1A1	A: a/b three-layered sandwiches	X: Cytochrome P450	H: Cytochrome P450	T: Cytochrome P450	F: HRDC	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.238.10	Mainly Alpha	Orthogonal Bundle	Recoverin	domain 1	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Flagellar calcium-binding protein	cation binding ion binding binding calcium ion binding metal ion binding small molecule binding	-	membrane-bounded organelle cell projection cellular anatomical structure organelle cilium motile cilium plasma membrane bounded cell projection

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR003299	Flagellar calcium-binding protein calflagin	Family
A	IPR054322	Flagellar calcium-binding protein, EF-hand domain	Domain
A	IPR018247	EF-Hand 1, calcium-binding site	Binding Site
A	IPR002048	EF-hand domain	Domain
A	IPR011992	EF-hand domain pair	Homologous Superfamily

Protein Modification Annotation

Modified Residue(s)
Chain	Residue(s)	Description
A	CSX	Parent Component: CYS RESID: AA0451 PSI-MOD : 2'-(S-L-cysteinyl)-6'-hydroxy-L-tryptophan sulfoxide MOD:01380

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.