Annotations: 3HDI

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	Spt4	e3hdiA1	A: a/b three-layered sandwiches	X: Cystatin-like	H: NTF2-like	T: NTF2-like	F: Spt4	ECOD (v294.1)
B	adh_short	e3hdiB1	A: a/b three-layered sandwiches	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: adh_short	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.30.830.10	Alpha Beta	2-Layer Sandwich	Cytochrome Bc1 Complex	Chain A, domain 1	CATH (4.3.0)
B	3.30.830.10	Alpha Beta	2-Layer Sandwich	Cytochrome Bc1 Complex	Chain A, domain 1	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF05193	Peptidase M16 inactive domain (Peptidase_M16_C)	Peptidase M16 inactive domain	Peptidase M16 consists of two structurally related domains. One is the active peptidase, whereas the other is inactive. The two domains hold the substrate like a clamp [1].	Domain
A, B	PF00675	Insulinase (Peptidase family M16) (Peptidase_M16)	Insulinase (Peptidase family M16)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C, D	Synthetic peptide	-	-	-
A, B	Processing protease	cation binding ion binding binding metal ion binding small molecule binding identical protein binding protein binding peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity	proteolysis metabolic process cellular process primary metabolic process protein metabolic process macromolecule metabolic process	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR007863	Peptidase M16, C-terminal	Domain
A, B	IPR011765	Peptidase M16, N-terminal	Domain
A, B	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
A, B	IPR050361	Mitochondrial Processing Peptidase/Ubiquinol-cytochrome c Reductase Complex	Family
A, B	IPR001431	Peptidase M16, zinc-binding site	Binding Site

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.