Annotations: 4FWG

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	AAA_32_3rd	e4fwgA3	A: alpha arrays	X: Histone-like	H: Histone-related	T: AAA+ ATPase lid domain	F: AAA_32_3rd	ECOD (1.6)
A	Lon_C_N	e4fwgA6	A: a+b two layers	X: Ribosomal protein S5 domain 2-like (From Topology)	H: Ribosomal protein S5 domain 2-like (From Topology)	T: Ribosomal protein S5 domain 2-like	F: Lon_C_N	ECOD (1.6)
A	AAA_32_1st	e4fwgA2	A: a+b two layers	X: Lon-like protease MtaLonC helical domain (From Topology)	H: Lon-like protease MtaLonC helical domain (From Topology)	T: Lon-like protease MtaLonC helical domain	F: AAA_32_1st	ECOD (1.6)
A	AAA_32_2nd	e4fwgA4	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: AAA_32_2nd	ECOD (1.6)
A	Lon_C_C_1	e4fwgA5	A: a/b three-layered sandwiches	X: C-terminal subdomain in Lon-related proteases catalytic domains (From Topology)	H: C-terminal subdomain in Lon-related proteases catalytic domains (From Topology)	T: C-terminal subdomain in Lon-related proteases catalytic domains	F: Lon_C_C_1	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
A	3.30.230.10	Alpha Beta	2-Layer Sandwich	Ribosomal Protein S5	domain 2	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF05362	Lon protease (S16) C-terminal proteolytic domain (Lon_C)	Lon protease (S16) C-terminal proteolytic domain	The Lon serine proteases must hydrolyse ATP to degrade protein substrates. In Escherichia coli, these proteases are involved in turnover of intracellular proteins, including abnormal proteins following heat-shock. The active site for protease activit ...	The Lon serine proteases must hydrolyse ATP to degrade protein substrates. In Escherichia coli, these proteases are involved in turnover of intracellular proteins, including abnormal proteins following heat-shock. The active site for protease activity resides in a C-terminal domain. The Lon proteases are classified as family S16 in Merops.	Domain
A	PF13654	LonB-like, AAA domain (AAA_32)	LonB-like, AAA domain	This entry includes a wide variety of AAA domains, including some that have lost essential nucleotide binding residues in the P-loop. This domain is found in Lon proteases from archaea and bacteria [1].	Domain
A	PF20436	Archaeal LonB, AAA+ ATPase LID domain (LonB_AAA-LID)	Archaeal LonB, AAA+ ATPase LID domain	The species-specific Lon-insertion domain (LID) is characteristic of Lon proteases (also known as endopeptidase La) and is fused to the AAA+ module [1]. Bacterial and eukaryotic Lons (LonA) have a LID at the N-terminal of AAA+ module; in archaeal Lon ...	The species-specific Lon-insertion domain (LID) is characteristic of Lon proteases (also known as endopeptidase La) and is fused to the AAA+ module [1]. Bacterial and eukaryotic Lons (LonA) have a LID at the N-terminal of AAA+ module; in archaeal Lons (LonB) the LID, represented in this entry, is inserted within the AAA+ module in a series of transmembrane segments known as the membrane-anchoring region (MA). In the Lon-like protease LonC, which does not have ATPase activity, the LID is also within the AAA-like module similar to LonBs; in this case, it is predicted to contain coiled-coil regions rather than transmembrane segments [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	TTC1975 peptidase	binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding peptidase activity catalytic activity, acting on a protein serine hydrolase activity serine-type peptidase activity hydrolase activity serine-type endopeptidase activity catalytic activity endopeptidase activity ATP-dependent peptidase activity ATP-dependent activity	catabolic process metabolic process primary metabolic process protein catabolic process protein metabolic process macromolecule metabolic process macromolecule catabolic process proteolysis	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR041699	Lon protease, AAA domain	Domain
A	IPR008269	Peptidase S16, Lon proteolytic domain	Domain
A	IPR027065	Lon protease	Family
A	IPR020568	Ribosomal protein uS5 domain 2-type superfamily	Homologous Superfamily
A	IPR046843	LonB, AAA+ ATPase LID domain, archaeal-type	Domain
A	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
A	IPR014721	Small ribosomal subunit protein uS5 domain 2-type fold, subgroup	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.