SAXSdb — 5k94

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

Maltose-binding periplasmic protein,Protein translocase subunit SecA,Maltose-binding periplasmic protein

Escherichia coli O157:H7

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Monomer	Protein 1	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 water × 1	Consistent with protein count
2	Insufficient information	Monomer	Protein 1	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	MALE_ECO57
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 3–173； UniProt 27–197 Author chain A； PDBConstruct 314–508； UniProt 202–396 Author chain B； PDBConstruct 3–173； UniProt 27–197 Author chain B； PDBConstruct 314–508； UniProt 202–396

Maltose-binding periplasmic protein,Protein translocase subunit SecA,Maltose-binding periplasmic protein

Escherichia coli O157:H7

UniProt Q8X996

State in the Current Structure

Assembly	Physical composition	Protein state	Molecular copy count	Associated components	Data consistency
1	Insufficient information	Monomer	Protein 1	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 water × 1	Consistent with protein count
2	Insufficient information	Monomer	Protein 1	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL × 1 water × 1	Consistent with protein count

Other States of the Same Protein in the Database

View Construct and Data Evidence

UniProt name	SECA_ECO57
Isoform	—
PDB entities	1
Chains and sequence ranges	Author chain A； PDBConstruct 174–313； UniProt 229–368 Author chain B； PDBConstruct 174–313； UniProt 229–368

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	5k94
Deposition date deposition_date	2016-05-31
Structure title title	Deletion-Insertion Chimera of MBP with the Preprotein Cross-Linking Domain of the SecA ATPase
Keywords keywords	preprotein translocase, SecA, preprotein cross-linking domain, PPXD, MBP chimera, PROTEIN TRANSPORT; PROTEIN TRANSPORT
Experimental Method method	X-RAY DIFFRACTION

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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.

5k94__assembly_1__model_1

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

Download this curve (.dat)

5k94__assembly_1__model_1 | I(q)

100 plotted points; both axes use logarithmic scales.

5k94__assembly_1__model_1 | P(r) · Pending

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

Rg（Guinier）	26.75 Å
Rg (electron density)	25.75 Å
Total Rg	26.63 Å
Atom count	3987
Residues	506
Excluded volume	71073 Å³
Maximum q	0.500 Å⁻¹

Assembly	Model	Structure unit	Oligomeric description	Status	CRYSOL	Actions
1	1	`5k94__assembly_1__model_1`	monomeric （1）	Success	4.1.3-1-20251215 (887e7ef)	View Download
2	1	`5k94__assembly_2__model_1`	monomeric （1）	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 (3)

Entity 1 Entity 1 polymer

Description description	Maltose-binding periplasmic protein,Protein translocase subunit SecA,Maltose-binding periplasmic protein
Molecular weight formula_weight	56426.7 kDa
Source method src_method	man
Copy count entity_count	2

Polymer Polymer

Polymer type type	polypeptide(L)
Chain IDs strand_id	A,B
Atom count atom_count	8428

GAKIEEGKLVIWINGDKGYNGLAEVGKKFEKDTGIKVTVEHPDKLEEKFPQVAATGDGPDIIFWAHDRFGGYAQSGLLAEITPDKAFQDKLYPFTWDAVRYNGKLIAYPIAVEALSLIYNKDLLPNPPKTWEEIPALDKELKAKGKSALMFNLQEPYFTWPLIAADGGYAFKYAEDSSEMYKRVNKIIPHLIRQEKEDSETFQGEGHFSVDEKSRQVNLTERGLVLIEELLVKEGIMDEGESLYSPANIMLMHHVTAALRAHALFTRDVDYIVKDGEVIIVDEHTGRTMQGRRWSDGLHQAVEAKEGVQIQNEYDIKDVGVDNAGAKAGLTFLVDLIKNKHMNADTDYSIAEAAFNKGETAMTINGPWAWSNIDTSKVNYGVTVLPTFKGQPSKPFVGVLSAGINAASPNKELAKEFLENYLLTDEGLEAVNKDKPLGAVALKSYEEELAKDPRIAATMENAQKGEIMPNIPQMSAFWYAVRTAVINAASGRQTVDEALKDAQTRITK

Source Source

Source organism organism	Escherichia coli O157:H7
NCBI taxonomy ID ncbi_taxonomy_id	83334
Host organism host_organism	Escherichia coli

Entity 2 Entity 2 non-polymer

Description description	2-[3-(2-HYDROXY-1,1-DIHYDROXYMETHYL-ETHYLAMINO)-PROPYLAMINO]-2-HYDROXYMETHYL-PROPANE-1,3-DIOL
Molecular weight formula_weight	282.3 kDa
Source method src_method	syn
Copy count entity_count	2

Entity 3 Entity 3 water

Description description	water
Molecular weight formula_weight	18.0 kDa
Source method src_method	nat
Copy count entity_count	454

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Unit-cell length a length_a	140.880 Å
Unit-cell length b length_b	165.260 Å
Unit-cell length c length_c	43.820 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	8

Space group space_group	P 21 21 2
Space-group number int_tables_number	18
Crystal system crystal_system	—

Resolution resolution	2.100 Å
Low-resolution limit resolution_low	17.965 Å
R factor r_factor	0.2034
R_work r_work	0.2020
R_free r_free	0.2296

Deletion-Insertion Chimera of MBP with the Preprotein Cross-Linking Domain of the SecA ATPase

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

Maltose-binding periplasmic protein,Protein translocase subunit SecA,Maltose-binding periplasmic protein

State in the Current Structure

Other States of the Same Protein in the Database

Maltose-binding periplasmic protein,Protein translocase subunit SecA,Maltose-binding periplasmic protein

State in the Current Structure

Other States of the Same Protein in the Database

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

5k94__assembly_1__model_1

5k94__assembly_1__model_1 | I(q)

5k94__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)

Deletion-Insertion Chimera of MBP with the Preprotein Cross-Linking Domain of the SecA ATPase

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

Maltose-binding periplasmic protein,Protein translocase subunit SecA,Maltose-binding periplasmic 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

Maltose-binding periplasmic protein,Protein translocase subunit SecA,Maltose-binding periplasmic 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

2. Structure Basics 2. Structure Basics

3. Official assembly/model SAXS Official SAXS Profiles

5k94__assembly_1__model_1

5k94__assembly_1__model_1 | I(q)

5k94__assembly_1__model_1 | P(r) · Pending

4. Crystallography and Experiment 4. Crystallography & Experiment

Unit cell Unit Cell

Symmetry Symmetry

Refinement Refinement

Diffraction experiment Diffraction

5. Entities and Polymers Entities & Polymers (3)

Entity 1 Entity 1 polymer

Polymer Polymer

Source Source

Entity 2 Entity 2 non-polymer

Entity 3 Entity 3 water

7. Citations (1)