SAXSdb — 8et3

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1. Protein Identity and Related Structures Protein Identity & Related Structures

ATP-dependent Clp protease ATP-binding subunit ClpX

Escherichia coli

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	ATP-dependent Clp protease proteolytic subunit × 7 （P0A6G7） Green fluorescent protein × 1 （P42212） Stringent starvation protein B × 2 （P0AFZ4） PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ADENOSINE-5'-DIPHOSPHATE × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	C3TLS7_ECOLX
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 1–424； UniProt 1–424 Author chain B； PDBConstruct 1–424； UniProt 1–424 Author chain C； PDBConstruct 1–424； UniProt 1–424 Author chain D； PDBConstruct 1–424； UniProt 1–424 Author chain E； PDBConstruct 1–424； UniProt 1–424 Author chain F； PDBConstruct 1–424； UniProt 1–424

ATP-dependent Clp protease proteolytic subunit

Escherichia coli

UniProt P0A6G7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	ATP-dependent Clp protease ATP-binding subunit ClpX × 6 （C3TLS7） Green fluorescent protein × 1 （P42212） Stringent starvation protein B × 2 （P0AFZ4） PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ADENOSINE-5'-DIPHOSPHATE × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	CLPP_ECOLI
Isoform	—
PDB entities	2
Chains and sequence ranges	Author chain H； PDBConstruct 1–192； UniProt 16–207 Author chain I； PDBConstruct 1–192； UniProt 16–207 Author chain J； PDBConstruct 1–192； UniProt 16–207 Author chain K； PDBConstruct 1–192； UniProt 16–207 Author chain L； PDBConstruct 1–192； UniProt 16–207 Author chain M； PDBConstruct 1–192； UniProt 16–207 Author chain N； PDBConstruct 1–192； UniProt 16–207

Green fluorescent protein

Escherichia coli

UniProt P42212

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	ATP-dependent Clp protease ATP-binding subunit ClpX × 6 （C3TLS7） ATP-dependent Clp protease proteolytic subunit × 7 （P0A6G7） Stringent starvation protein B × 2 （P0AFZ4） PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ADENOSINE-5'-DIPHOSPHATE × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	GFP_AEQVI
Isoform	—
PDB entities	3
Chains and sequence ranges	Author chain S； PDBConstruct 27–262； UniProt 3–238

Stringent starvation protein B

Escherichia coli

UniProt P0AFZ4

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Protein heterocomplex	Heteromer	Protein 16	ATP-dependent Clp protease ATP-binding subunit ClpX × 6 （C3TLS7） ATP-dependent Clp protease proteolytic subunit × 7 （P0A6G7） Green fluorescent protein × 1 （P42212） PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER × 4 ADENOSINE-5'-DIPHOSPHATE × 2	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SSPB_ECO57
Isoform	—
PDB entities	4
Chains and sequence ranges	Author chain Y； PDBConstruct 1–165； UniProt 1–165 Author chain Z； PDBConstruct 1–165； UniProt 1–165

The page prioritizes protein identity, the current assembly, associated components, oligomeric state and cross-PDB links. Chain mapping and sequence ranges are retained as data evidence. Internal IDs, import timestamps and assembly operation expressions are maintenance fields and are not shown here.

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2. Structure Basics 2. Structure Basics

Entry ID entry_id	8et3
Deposition date deposition_date	2022-10-16
Structure title title	Cryo-EM structure of a delivery complex containing the SspB adaptor, an ssrA-tagged substrate, and the AAA+ ClpXP protease
Keywords keywords	AAA+ protease, ClpXP, SspB adaptor, HYDROLASE, CHAPERONE; CHAPERONE
Experimental Method method	ELECTRON MICROSCOPY

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3. Official assembly/model SAXS Official SAXS Profiles

This page reads only the latest assembly calculations. Every curve maps to an explicit PDB entry, official biological assembly and coordinate model.

8et3__assembly_1__model_1

Assembly 1 · Model 1 · CRYSOL 4.1.3-1-20251215 (887e7ef)

Download this curve (.dat)

8et3__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

8et3__assembly_1__model_1 | P(r) · Pending

P(r) will be calculated and displayed separately for the same assembly/model.

Rg（Guinier）	50.06 Å
Rg (electron density)	49.40 Å
Total Rg	49.55 Å
Atom count	56926
Residues	3639
Excluded volume	506100 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`8et3__assembly_1__model_1`	hexadecameric （16）	Success	4.1.3-1-20251215 (887e7ef)	View Download

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4. Crystallography and Experiment 4. Crystallography & Experiment

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5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Description description	ATP-dependent Clp protease ATP-binding subunit ClpX
Molecular weight formula_weight	46414.8 kDa
Source method src_method	man
Copy count entity_count	6

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B,C,D,E,F
Atom count atom_count	56926

MTDKRKDGSGKLLYCSFCGKSQHEVRKLIAGPSVYICDECVDLCNDIIREEIKEVAPHRERSALPTPHEIRNHLDDYVIGQEQAKKVLAVAVYNHYKRLRNGDTSNGVELGKSNILLIGPTGSGKTLLAETLARLLDVPFTMADATTLTEAGYVGEDVENIIQKLLQKCDYDVQKAQRGIVYIDEIDKISRKSDNPSITRDVSGEGVQQALLKLIEGTVAAVPPQGGRKHPQQEFLQVDTSKILFICGGAFAGLDKVISHRVETGSGIGFGATVKAKSDKASEGELLAQVEPEDLIKFGLIPEFIGRLPVVATLNELSEEALIQILKEPKNALTKQYQALFNLEGVDLEFRDEALDAIAKKAMARKTGARGLRSIVEAALLDTMYDLPSMEDVEKVVIDESVIDGQSEPLLIYGKPEAQQASGE

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 polymer

Description description	ATP-dependent Clp protease proteolytic subunit
Molecular weight formula_weight	23468.9 kDa
EC 编号 ec_number	3.4.21.92
Source method src_method	man
Copy count entity_count	7

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	H,I,J,K,L,M,N

LVPMVIEQTSRGERSFDIYSRLLKERVIFLTGQVEDHMANLIVAQMLFLEAENPEKDIYLYINSPGGVITAGMSIYDTMQFIKPDVSTICMGQAASMGAFLLTAGAKGKRFCLPNSRVMIHQPLGGYQGQATDIEIHAREILKVKGRMNELMALHTGQSLEQIERDTERDRFLSAPEAVEYGLVDSILTHRNENLYFQSLEHHHHHH

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 3 Entity 3 polymer

Description description	Green fluorescent protein
Molecular weight formula_weight	30855.4 kDa
Source method src_method	man
Copy count entity_count	1

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	S

MGSSHHHHHHDYDIPTTENLYFQGSRKGEELFTGVVPILVELDGDVNGHKFSVSGEGEGDATYGKLTLKFICTTGKLPVPWPTLVTTFGYGVQCFARYPDHMKQHDFFKSAMPEGYVQERTIFFKDDGNYKTRAEVKFEGDTLVNRIELKGIDFKEDGNILGHKLEYNYNSHNVYIMADKQKNGIKVNFKIRHNIEDGSVQLADHYQQNTPIGDGPVLLPDNHYLSTQSALSKDPNEKRDHMVLLEFVTAAGITHGMDELYKAANDENYALAA

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 4 Entity 4 polymer

Description description	Stringent starvation protein B
Molecular weight formula_weight	18279.4 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	Y,Z

MDLSQLTPRRPYLLRAFYEWLLDNQLTPHLVVDVTLPGVQVPMEYARDGQIVLNIAPRAVGNLELANDEVRFNARFGGIPRQVSVPLAAVLAIYARENGAGTMFEPEAAYDEDTSIMNDEEASADNETVMSVIDGDKPDHDDDTHPDDEPPQPPRGGRPALRVVK

Source Source

Source organism organism	Escherichia coli
NCBI taxonomy ID ncbi_taxonomy_id	562
Host organism host_organism	Escherichia coli

Entity 5 Entity 5 non-polymer

Description description	PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER
Molecular weight formula_weight	523.2 kDa
Source method src_method	syn
Copy count entity_count	4

Entity 6 Entity 6 non-polymer

Description description	ADENOSINE-5'-DIPHOSPHATE
Molecular weight formula_weight	427.2 kDa
Source method src_method	syn
Copy count entity_count	2

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6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

Domain ID domain_id	8et3H01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

Domain ID domain_id	8et3I01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

Domain ID domain_id	8et3L01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

Domain ID domain_id	8et3M01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

Domain ID domain_id	8et3N01
Class class	3 — Alpha Beta
Architecture architecture	90 — Alpha-Beta Complex
Topology topology	226 — 2-enoyl-CoA Hydratase; Chain A, domain 1
Homologous superfamily homologous superfamily	10 — 2-enoyl-CoA Hydratase; Chain A, domain 1

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Unit-cell length a length_a	1.000 Å
Unit-cell length b length_b	1.000 Å
Unit-cell length c length_c	1.000 Å
Unit-cell angle α angle_alpha	90.00 °
Unit-cell angle β angle_beta	90.00 °
Unit-cell angle γ angle_gamma	90.00 °
Molecules per unit cell Z z_pdb	—

Space group space_group	P 1
Space-group number int_tables_number	1
Crystal system crystal_system	—

Resolution resolution	3.70 Å
Resolution测定Method resolution_method	—
颗粒数 num_particles	236728

Cryo-EM structure of a delivery complex containing the SspB adaptor, an ssrA-tagged substrate, and the AAA+ ClpXP protease

1. Protein Identity and Related Structures Protein Identity & Related Structures

ATP-dependent Clp protease ATP-binding subunit ClpX

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

ATP-dependent Clp protease proteolytic subunit

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Green fluorescent protein

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

Stringent starvation protein B

State in the Current Structure

Other States of the Same Protein in the Database

Monomer

Homodimer

Homotetramer

Other homooligomers

Heteromeric or nucleic-acid complex

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

8et3__assembly_1__model_1

8et3__assembly_1__model_1 | I(q)

8et3__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

冷冻电镜 EM 3D

5. Entities and Polymers Entities & Polymers (6)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 polymer

Polymer Polymer

Source Source

Entity 3 Entity 3 polymer

Polymer Polymer

Source Source

Entity 4 Entity 4 polymer

Polymer Polymer

Source Source

Entity 5 Entity 5 non-polymer

Entity 6 Entity 6 non-polymer

6. Fold Classification (SCOP + CATH) 5 domains

CATH v4.4 (5 domains)

7. Citations (1)