Annotations: 5CIO

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PF00675,PF05193	e5cioA1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF00675,PF05193	ECOD (1.6)
A	PF22454	e5cioA3	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF22454	ECOD (1.6)
A	PF22455	e5cioA4	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF22455	ECOD (1.6)
A	PF22456	e5cioA2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF22456	ECOD (1.6)
B	PF00675,PF05193	e5cioB1	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF00675,PF05193	ECOD (1.6)
B	PF22454	e5cioB2	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF22454	ECOD (1.6)
B	PF22455	e5cioB4	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF22455	ECOD (1.6)
B	PF22456	e5cioB3	A: a+b two layers	X: LuxS, MPP, ThrRS/AlaRS common domain	H: LuxS, MPP, ThrRS/AlaRS common domain	T: LuxS/MPP-like metallohydrolase	F: PF22456	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF22454	PQQ synthase PqqF, N-terminal lobe domain 2 (PQQ_syn_pqqF_N_2)	PQQ synthase PqqF, N-terminal lobe domain 2	This entry represents domain 2 from the N-terminal lobe of PQQ synthase PqqF, a protein required for coenzyme pyrroloquinoline quinone (PQQ) biosynthesis. It consists of four structurally similar domains organised in N-terminal (domain 1 represented ...	This entry represents domain 2 from the N-terminal lobe of PQQ synthase PqqF, a protein required for coenzyme pyrroloquinoline quinone (PQQ) biosynthesis. It consists of four structurally similar domains organised in N-terminal (domain 1 represented in Pfam: PF00675 and domain 2) and C-terminal (domain 3 and domain 4) lobes [1].	Domain
A, B	PF22456	PQQ synthase PqqF-like, C-terminal lobe domain 4 (PqqF-like_C_4)	PQQ synthase PqqF-like, C-terminal lobe domain 4	This entry represents domain 4 from the C-terminal lobe of PQQ synthase PqqF, a protein required for coenzyme pyrroloquinoline quinone (PQQ) biosynthesis. It consists of four structurally similar domains organised in N-terminal (domain 1 represented ...	This entry represents domain 4 from the C-terminal lobe of PQQ synthase PqqF, a protein required for coenzyme pyrroloquinoline quinone (PQQ) biosynthesis. It consists of four structurally similar domains organised in N-terminal (domain 1 represented in Pfam: PF00675 and domain 2 in Pfam:PF22454) and C-terminal (domain 3 and domain 4) lobes [1]. This domain is also found in other Peptidase M16 members, such as Nardilysin and insulin degrading enzymes from human.	Domain
A, B	PF22455	PQQ synthase PqqF, C-terminal lobe domain 3 (PqqF_C_3)	PQQ synthase PqqF, C-terminal lobe domain 3	This entry represents domain 3 from the C-terminal lobe of PQQ synthase PqqF, a protein required for coenzyme pyrroloquinoline quinone (PQQ) biosynthesis. It consists of four structurally similar domains organised in N-terminal (domain 1 represented ...	This entry represents domain 3 from the C-terminal lobe of PQQ synthase PqqF, a protein required for coenzyme pyrroloquinoline quinone (PQQ) biosynthesis. It consists of four structurally similar domains organised in N-terminal (domain 1 represented in Pfam: PF00675 and domain 2 in Pfam:PF22454) and C-terminal (domain 3 and domain 4) lobes [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
A, B	pyrroloquinoline quinone biosynthesis protein PqqF	peptidase activity catalytic activity, acting on a protein metalloendopeptidase activity hydrolase activity metallopeptidase activity catalytic activity endopeptidase activity cation binding transition metal ion binding zinc ion binding ion binding binding metal ion binding small molecule binding	organonitrogen compound metabolic process amyloid-beta metabolic process metabolic process amide metabolic process cellular catabolic process catabolic process cellular metabolic process cellular process peptide metabolic process peptide catabolic process pyrroloquinoline quinone biosynthetic process tricarboxylic acid metabolic process small molecule biosynthetic process oxoacid metabolic process organonitrogen compound metabolic process amyloid-beta metabolic process metabolic process amide metabolic process cellular catabolic process catabolic process cellular metabolic process cellular process peptide metabolic process peptide catabolic process pyrroloquinoline quinone biosynthetic process tricarboxylic acid metabolic process small molecule biosynthetic process oxoacid metabolic process cellular biosynthetic process organonitrogen compound biosynthetic process carboxylic acid metabolic process organic acid biosynthetic process organic acid metabolic process carboxylic acid biosynthetic process cellular ketone metabolic process biosynthetic process small molecule metabolic process ketone biosynthetic process tricarboxylic acid biosynthetic process regulation of hormone levels biological regulation regulation of biological quality hormone metabolic process hormone catabolic process organonitrogen compound catabolic process proteolysis involved in protein catabolic process primary metabolic process protein catabolic process macromolecule catabolic process proteolysis protein metabolic process macromolecule metabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity cytosol peroxisomal matrix membrane-bounded organelle peroxisome membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle organelle lumen organelle microbody lumen intracellular anatomical structure cytoplasm cellular anatomical entity cytosol peroxisomal matrix membrane-bounded organelle peroxisome membrane-enclosed lumen intracellular membrane-bounded organelle intracellular organelle lumen intracellular organelle organelle lumen organelle microbody lumen microbody

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR007863	Peptidase M16, C-terminal	Domain
A, B	IPR011249	Metalloenzyme, LuxS/M16 peptidase-like	Homologous Superfamily
A, B	IPR011844	Coenzyme PQQ biosynthesis protein PqqF	Family
A, B	IPR011765	Peptidase M16, N-terminal	Domain
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 R01GM133198.