Annotations: 1OFH

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1ofhb_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
C	d1ofhc_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
A	d1ofha_	Alpha and beta proteins (a/b)	P-loop containing nucleoside triphosphate hydrolases	P-loop containing nucleoside triphosphate hydrolases	Extended AAA-ATPase domain	HslU	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
D [auth G]	d1ofhg_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
E [auth H]	d1ofhh_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
F [auth I]	d1ofhi_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
H [auth M]	d1ofhm_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
I [auth N]	d1ofhn_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)
G [auth L]	d1ofhl_	Alpha and beta proteins (a+b)	Ntn hydrolase-like	N-terminal nucleophile aminohydrolases (Ntn hydrolases)	Proteasome subunits	HslV (ClpQ) protease	(Haemophilus influenzae Rd KW20 ) [TaxId: 71421 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
D [auth G]	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
E [auth H]	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
F [auth I]	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
H [auth M]	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
I [auth N]	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	SCOP2B (2022-06-29)
G [auth L]	SCOP2B Superfamily	Class II glutamine amidotransferases	8036903	3000131	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)
B	ClpB_D2-small	e1ofhB1	A: alpha arrays	X: Histone-like	H: Histone-related	T: AAA+ ATPase lid domain	F: ClpB_D2-small	ECOD (1.6)
B	Sigma54_activat	e1ofhB2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Sigma54_activat	ECOD (1.6)
C	ClpB_D2-small	e1ofhC1	A: alpha arrays	X: Histone-like	H: Histone-related	T: AAA+ ATPase lid domain	F: ClpB_D2-small	ECOD (1.6)
C	Sigma54_activat	e1ofhC2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Sigma54_activat	ECOD (1.6)
A	ClpB_D2-small	e1ofhA1	A: alpha arrays	X: Histone-like	H: Histone-related	T: AAA+ ATPase lid domain	F: ClpB_D2-small	ECOD (1.6)
A	Sigma54_activat	e1ofhA2	A: a/b three-layered sandwiches	X: P-loop domains-like	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: Sigma54_activat	ECOD (1.6)
D [auth G]	Proteasome	e1ofhG1	A: a+b four layers	X: Ntn/PP2C	H: Ntn	T: Proteasome subunits	F: Proteasome	ECOD (1.6)
E [auth H]	Proteasome	e1ofhH1	A: a+b four layers	X: Ntn/PP2C	H: Ntn	T: Proteasome subunits	F: Proteasome	ECOD (1.6)
F [auth I]	Proteasome	e1ofhI1	A: a+b four layers	X: Ntn/PP2C	H: Ntn	T: Proteasome subunits	F: Proteasome	ECOD (1.6)
H [auth M]	Proteasome	e1ofhM1	A: a+b four layers	X: Ntn/PP2C	H: Ntn	T: Proteasome subunits	F: Proteasome	ECOD (1.6)
I [auth N]	Proteasome	e1ofhN1	A: a+b four layers	X: Ntn/PP2C	H: Ntn	T: Proteasome subunits	F: Proteasome	ECOD (1.6)
G [auth L]	Proteasome	e1ofhL1	A: a+b four layers	X: Ntn/PP2C	H: Ntn	T: Proteasome subunits	F: Proteasome	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
B	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
C	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
C	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
A	3.40.50.300	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	P-loop containing nucleotide triphosphate hydrolases	CATH (4.3.0)
A	1.10.8.60	Mainly Alpha	Orthogonal Bundle	Helicase, Ruva Protein	domain 3	CATH (4.3.0)
D [auth G]	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
E [auth H]	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
F [auth I]	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
H [auth M]	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
I [auth N]	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)
G [auth L]	3.60.20.10	Alpha Beta	4-Layer Sandwich	Glutamine Phosphoribosylpyrophosphate, subunit 1, domain 1	Aminohydrolase, N-terminal nucleophile (Ntn) domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B, C	PF00004	ATPase family associated with various cellular activities (AAA) (AAA)	ATPase family associated with various cellular activities (AAA)	AAA family proteins often perform chaperone-like functions that assist in the assembly, operation, or disassembly of protein complexes [2].	Domain
A, B, C	PF07724	AAA domain (Cdc48 subfamily) (AAA_2)	AAA domain (Cdc48 subfamily)	This Pfam entry includes some of the AAA proteins not detected by the Pfam:PF00004 model.	Domain
D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], I [auth N]	PF00227	Proteasome subunit (Proteasome)	Proteasome subunit	The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologues vary greatly in complexity ...	The proteasome is a multisubunit structure that degrades proteins. Protein degradation is an essential component of regulation because proteins can become misfolded, damaged, or unnecessary. Proteasomes and their homologues vary greatly in complexity: from HslV (heat shock locus v), which is encoded by 1 gene in bacteria, to the eukaryotic 20S proteasome, which is encoded by more than 14 genes [1]. Recently evidence of two novel groups of bacterial proteasomes was proposed. The first is Anbu, which is sparsely distributed among cyanobacteria and proteobacteria [1]. The second is call beta-proteobacteria proteasome homologue (BPH) [1].	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B, C	ATP-DEPENDENT HSL PROTEASE ATP-BINDING SUBUNIT HSLU	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 hydrolase activity catalytic activity pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity, acting on acid anhydrides ATP-dependent activity proteasome-activating activity	cellular process protein unfolding catabolic process proteolysis involved in protein catabolic process proteolysis metabolic process primary metabolic process protein catabolic process protein metabolic process macromolecule metabolic process macromolecule catabolic process	protein-containing complex intracellular anatomical structure catalytic complex peptidase complex cellular anatomical entity cytosolic proteasome complex HslUV protease complex proteasome complex endopeptidase complex cytoplasm cytosol intracellular protein-containing complex
D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], I [auth N]	ATP-DEPENDENT PROTEASE HSLV	peptidase activity catalytic activity, acting on a protein threonine-type peptidase activity hydrolase activity catalytic activity endopeptidase activity threonine-type endopeptidase activity cation binding ion binding binding metal ion binding small molecule binding	catabolic process proteolysis involved in protein catabolic process proteolysis metabolic process primary metabolic process protein catabolic process protein metabolic process macromolecule metabolic process macromolecule catabolic process	intracellular anatomical structure cytoplasm cellular anatomical entity protein-containing complex catalytic complex peptidase complex cytosolic proteasome complex HslUV protease complex proteasome complex endopeptidase complex cytosol intracellular protein-containing complex proteasome core complex

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B, C	IPR050052	ATP-dependent Clp protease ATP-binding subunit ClpX	Family
A, B, C	IPR003593	AAA+ ATPase domain	Domain
A, B, C	IPR003959	ATPase, AAA-type, core	Domain
A, B, C	IPR004491	Heat shock protein HslU	Family
A, B, C	IPR019489	Clp ATPase, C-terminal	Domain
A, B, C	IPR027417	P-loop containing nucleoside triphosphate hydrolase	Homologous Superfamily
D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], I [auth N]	IPR023333	Proteasome B-type subunit	Family
D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], I [auth N]	IPR029055	Nucleophile aminohydrolases, N-terminal	Homologous Superfamily
D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], I [auth N]	IPR001353	Proteasome, subunit alpha/beta	Family
D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], D [auth G], E [auth H], F [auth I], G [auth L], H [auth M], I [auth N]	IPR022281	ATP-dependent protease, HslV subunit	Family

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.