Annotations: 6MRX

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Cas9_PI2	e6mrxA1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: Cas9_PI2	ECOD (v294.1)
C	Cas9_PI2	e6mrxC1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: Cas9_PI2	ECOD (v294.1)
D	Cas9_PI2	e6mrxD1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: Cas9_PI2	ECOD (v294.1)
B	Cas9_PI2	e6mrxB1	A: a/b three-layered sandwiches	X: P-loop domains-like	H: DUF1107-like	T: DUF1107-like	F: Cas9_PI2	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.1290	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (utative)
A	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)
C	2.60.40.1290	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (utative)
C	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)
D	2.60.40.1290	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (utative)
D	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)
B	2.60.40.1290	Mainly Beta	Sandwich	Immunoglobulin-like		CATH (utative)
B	2.120.10.10	Mainly Beta	6 Propeller	Neuraminidase		CATH (utative)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C, D	Sialidase26	hydrolase activity, acting on glycosyl bonds alpha-sialidase activity hydrolase activity, hydrolyzing O-glycosyl compounds hydrolase activity exo-alpha-sialidase activity catalytic activity	sphingolipid catabolic process ceramide metabolic process ganglioside catabolic process carbohydrate derivative catabolic process glycosphingolipid catabolic process lipid catabolic process catabolic process glycolipid metabolic process glycosphingolipid metabolic process liposaccharide metabolic process carbohydrate derivative metabolic process primary metabolic process sphingolipid metabolic process glycolipid catabolic process ceramide catabolic process sphingolipid catabolic process ceramide metabolic process ganglioside catabolic process carbohydrate derivative catabolic process glycosphingolipid catabolic process lipid catabolic process catabolic process glycolipid metabolic process glycosphingolipid metabolic process liposaccharide metabolic process carbohydrate derivative metabolic process primary metabolic process sphingolipid metabolic process glycolipid catabolic process ceramide catabolic process metabolic process cellular process ganglioside metabolic process lipid metabolic process carbohydrate metabolic process oligosaccharide catabolic process oligosaccharide metabolic process carbohydrate catabolic process	cellular anatomical structure membrane intracellular anatomical structure cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C, D	IPR011040	Sialidase	Domain
A, B, C, D	IPR029456	Sialidase, N-terminal	Domain
A, B, C, D	IPR026856	Sialidase family	Family
A, B, C, D	IPR036278	Sialidase 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.