2ZXC | pdb_00002zxc

Ceramidase complexed with C2

External Resource: Annotation

Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification
Membrane Protein Annotation: OPM

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Neutral/alkaline ceramidase, catalytic domain	8046377	4005049	SCOP2 (2022-06-29)
A	SCOP2 Family	Neutral/alkaline ceramidase, C-terminal domain	8046379	4005051	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DmpA/ArgJ-like	8053796	3001033	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	E set domains	8053793	3000070	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DmpA/ArgJ-like	8053794	3001033	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	DmpA/ArgJ-like	8053795	3001033	SCOP2 (2022-06-29)
B	SCOP2B Superfamily	DmpA/ArgJ-like	8053796	3001033	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	DmpA/ArgJ-like	8053795	3001033	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	E set domains	8053793	3000070	SCOP2B (2022-06-29)
B	SCOP2B Superfamily	DmpA/ArgJ-like	8053794	3001033	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Ceramidse_alk_C	e2zxcA1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Ceramidse_alk_C	ECOD (1.6)
A	Ceramidase_alk	e2zxcA2	A: a+b two layers	X: MocoBD/DmpA-related (From Homology)	H: MocoBD/DmpA-related	T: Neutral ceramidase large domain	F: Ceramidase_alk	ECOD (1.6)
B	Ceramidse_alk_C	e2zxcB1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Ceramidse_alk_C	ECOD (1.6)
B	Ceramidase_alk	e2zxcB2	A: a+b two layers	X: MocoBD/DmpA-related (From Homology)	H: MocoBD/DmpA-related	T: Neutral ceramidase large domain	F: Ceramidase_alk	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	2.60.40.2300	Mainly Beta	Sandwich	Immunoglobulin-like	Neutral/alkaline non-lysosomal ceramidase, C-terminal domain	CATH (4.3.0)
B	2.60.40.2300	Mainly Beta	Sandwich	Immunoglobulin-like	Neutral/alkaline non-lysosomal ceramidase, C-terminal domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF17048	Neutral/alkaline non-lysosomal ceramidase, C-terminal (Ceramidse_alk_C)	Neutral/alkaline non-lysosomal ceramidase, C-terminal	This family represents C-terminal domain of a group of neutral/alkaline ceramidases found in both bacteria and eukaryotes [1,2,3]. The EC classification is EC:3.5.1.23. The enzyme hydrolyses ceramide to generate sphingosine and fatty acid. The enzym ...	This family represents C-terminal domain of a group of neutral/alkaline ceramidases found in both bacteria and eukaryotes [1,2,3]. The EC classification is EC:3.5.1.23. The enzyme hydrolyses ceramide to generate sphingosine and fatty acid. The enzyme plays a regulatory role in a variety of physiological events in eukaryotes and also functions as an exotoxin in particular bacteria. This C-terminal tail of the enzyme is highly conserved across all species and may play a role in the interaction of the enzyme with the plasma membranes [4]. The tail is also vital for the stabilisation of the enzyme as a whole [4].	Domain
A, B	PF04734	Neutral/alkaline non-lysosomal ceramidase, N-terminal (Ceramidase_alk)	Neutral/alkaline non-lysosomal ceramidase, N-terminal	This family represents N-terminal domain of a group of neutral/alkaline ceramidases found in both bacteria and eukaryotes [1,2,3]. The EC classification is EC:3.5.1.23. The enzyme hydrolyses ceramide to generate sphingosine and fatty acid. The enzym ...	This family represents N-terminal domain of a group of neutral/alkaline ceramidases found in both bacteria and eukaryotes [1,2,3]. The EC classification is EC:3.5.1.23. The enzyme hydrolyses ceramide to generate sphingosine and fatty acid. The enzyme plays a regulatory role in a variety of physiological events in eukaryotes and also functions as an exotoxin in particular bacteria. This N-terminal domain carries two metal-binding sites, the first for Zn2+ residing within the domain, and the second, for Mg2+/Ca2+ lying at the interface between the two domains [4].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Neutral ceramidase	cation binding ion binding binding metal ion binding small molecule binding N-acylsphingosine amidohydrolase activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds, in linear amides hydrolase activity catalytic activity hydrolase activity, acting on carbon-nitrogen (but not peptide) bonds	ceramide metabolic process membrane lipid metabolic process sphingolipid catabolic process lipid catabolic process catabolic process sphingolipid metabolic process primary metabolic process membrane lipid catabolic process ceramide catabolic process metabolic process cellular process amide metabolic process lipid metabolic process fatty acid metabolic process ceramide metabolic process membrane lipid metabolic process sphingolipid catabolic process lipid catabolic process catabolic process sphingolipid metabolic process primary metabolic process membrane lipid catabolic process ceramide catabolic process metabolic process cellular process amide metabolic process lipid metabolic process fatty acid metabolic process long-chain fatty acid metabolic process monocarboxylic acid biosynthetic process oxoacid metabolic process small molecule biosynthetic process long-chain fatty acid biosynthetic process carboxylic acid metabolic process lipid biosynthetic process organic acid metabolic process organic acid biosynthetic process fatty acid biosynthetic process carboxylic acid biosynthetic process biosynthetic process small molecule metabolic process monocarboxylic acid metabolic process polyol metabolic process sphingoid biosynthetic process sphingolipid biosynthetic process alcohol metabolic process diol biosynthetic process sphingosine metabolic process sphingoid metabolic process sphingosine biosynthetic process diol metabolic process polyol biosynthetic process alcohol biosynthetic process membrane lipid biosynthetic process diol catabolic process alcohol catabolic process sphingosine catabolic process polyol catabolic process sphingoid catabolic process small molecule catabolic process	cellular anatomical structure membrane extracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR038445	Neutral ceramidase, C-terminal domain superfamily	Homologous Superfamily
A, B	IPR006823	Neutral/alkaline nonlysosomal ceramidase	Family
A, B	IPR031331	Neutral/alkaline non-lysosomal ceramidase, C-terminal	Domain
A, B	IPR031329	Neutral/alkaline non-lysosomal ceramidase, N-terminal	Domain

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Bitopic proteins	Neutral/alkaline ceramidase	Neutral/alkaline non-lysosomal ceramidase

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.