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6pep

Focussed refinement of InvGN0N1:SpaPQR:PrgIJ from the Salmonella SPI-1 injectisome needle complex

Method: ELECTRON MICROSCOPY
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1. Protein Identity and Related Structures Protein Identity & Related Structures

Surface presentation of antigens protein SpaP

OrganismNot specified

UniProt P40700

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 69 Surface presentation of antigens protein SpaR × 1 （P40701） Surface presentation of antigens protein SpaQ × 4 （P0A1L7） Protein InvG × 16 （P35672） Protein PrgJ × 6 （P41785） Protein PrgI × 13 （P41784） Protein PrgH × 24 （P41783） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
6pem 6pep 6q14 6q15 6q16 7agx 7ah9 7ahi

8 assemblies

View Construct and Data Evidence
UniProt name SPAP_SALTY
Isoform —
PDB entities 1
Chains and sequence ranges Author chain 0； PDBConstruct 1–224； UniProt 1–224 Author chain 1； PDBConstruct 1–224； UniProt 1–224 Author chain 2； PDBConstruct 1–224； UniProt 1–224 Author chain 3； PDBConstruct 1–224； UniProt 1–224 Author chain 4； PDBConstruct 1–224； UniProt 1–224

Surface presentation of antigens protein SpaR

OrganismNot specified

UniProt P40701

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 69 Surface presentation of antigens protein SpaP × 5 （P40700） Surface presentation of antigens protein SpaQ × 4 （P0A1L7） Protein InvG × 16 （P35672） Protein PrgJ × 6 （P41785） Protein PrgI × 13 （P41784） Protein PrgH × 24 （P41783） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
6pem 6pep 6q14 6q15 6q16 7agx 7ah9 7ahi

8 assemblies

View Construct and Data Evidence
UniProt name SPAR_SALTY
Isoform —
PDB entities 2
Chains and sequence ranges Author chain 5； PDBConstruct 1–263； UniProt 1–263

Surface presentation of antigens protein SpaQ

OrganismNot specified

UniProt P0A1L7

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 69 Surface presentation of antigens protein SpaP × 5 （P40700） Surface presentation of antigens protein SpaR × 1 （P40701） Protein InvG × 16 （P35672） Protein PrgJ × 6 （P41785） Protein PrgI × 13 （P41784） Protein PrgH × 24 （P41783） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
6pem 6pep 6q14 6q15 6q16 7agx 7ah9 7ahi

8 assemblies

View Construct and Data Evidence
UniProt name SPAQ_SALTY
Isoform —
PDB entities 3
Chains and sequence ranges Author chain 6； PDBConstruct 1–86； UniProt 1–86 Author chain 7； PDBConstruct 1–86； UniProt 1–86 Author chain 8； PDBConstruct 1–86； UniProt 1–86 Author chain 9； PDBConstruct 1–86； UniProt 1–86

Protein InvG

OrganismNot specified

UniProt P35672

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 69 Surface presentation of antigens protein SpaP × 5 （P40700） Surface presentation of antigens protein SpaR × 1 （P40701） Surface presentation of antigens protein SpaQ × 4 （P0A1L7） Protein PrgJ × 6 （P41785） Protein PrgI × 13 （P41784） Protein PrgH × 24 （P41783） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
4g08

1 assemblies

Homodimer

None

Homotetramer

None

Other homooligomers
2y9k 3j1v 5tcq 6dv3 6dv6 6pee

6 assemblies

Heteromeric or nucleic-acid complex
5tcr 6pem 6pep 6q14 6q15 6q16 6xfk 6xfl 7ah9 7ahi

10 assemblies

View Construct and Data Evidence
UniProt name INVG_SALTY
Isoform —
PDB entities 4
Chains and sequence ranges Author chain A； PDBConstruct 1–562； UniProt 1–562 Author chain B； PDBConstruct 1–562； UniProt 1–562 Author chain C； PDBConstruct 1–562； UniProt 1–562 Author chain D； PDBConstruct 1–562； UniProt 1–562 Author chain F； PDBConstruct 1–562； UniProt 1–562 Author chain G； PDBConstruct 1–562； UniProt 1–562 Author chain H； PDBConstruct 1–562； UniProt 1–562 Author chain I； PDBConstruct 1–562； UniProt 1–562 Author chain J； PDBConstruct 1–562； UniProt 1–562 Author chain K； PDBConstruct 1–562； UniProt 1–562 Author chain L； PDBConstruct 1–562； UniProt 1–562 Author chain M； PDBConstruct 1–562； UniProt 1–562 Author chain N； PDBConstruct 1–562； UniProt 1–562 Author chain O； PDBConstruct 1–562； UniProt 1–562 Author chain P； PDBConstruct 1–562； UniProt 1–562 Author chain Q； PDBConstruct 1–562； UniProt 1–562

Protein PrgJ

OrganismNot specified

UniProt P41785

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 69 Surface presentation of antigens protein SpaP × 5 （P40700） Surface presentation of antigens protein SpaR × 1 （P40701） Surface presentation of antigens protein SpaQ × 4 （P0A1L7） Protein InvG × 16 （P35672） Protein PrgI × 13 （P41784） Protein PrgH × 24 （P41783） Consistent with protein count

Other States of the Same Protein in the Database

Monomer

None

Homodimer

None

Homotetramer

None

Other homooligomers

None

Heteromeric or nucleic-acid complex
6pep 6q15 6q16 7agx 7ah9 7ahi

6 assemblies

View Construct and Data Evidence
UniProt name PRGJ_SALTY
Isoform —
PDB entities 5
Chains and sequence ranges Author chain AM； PDBConstruct 1–101； UniProt 1–101 Author chain AN； PDBConstruct 1–101； UniProt 1–101 Author chain AO； PDBConstruct 1–101； UniProt 1–101 Author chain AP； PDBConstruct 1–101； UniProt 1–101 Author chain AQ； PDBConstruct 1–101； UniProt 1–101 Author chain AR； PDBConstruct 1–101； UniProt 1–101

Protein PrgI

OrganismNot specified

UniProt P41784

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 69 Surface presentation of antigens protein SpaP × 5 （P40700） Surface presentation of antigens protein SpaR × 1 （P40701） Surface presentation of antigens protein SpaQ × 4 （P0A1L7） Protein InvG × 16 （P35672） Protein PrgJ × 6 （P41785） Protein PrgH × 24 （P41783） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
2jow 2kv7 2x9c 2x9c

4 assemblies

Homodimer

None

Homotetramer
2mex

1 assemblies

Other homooligomers
2lpz 6dwb 6znh

3 assemblies

Heteromeric or nucleic-acid complex
3zqb 3zqb 3zqe 3zqe 6pep 6q15 6q16 7agx 7ah9 7ahi 7rye

11 assemblies

View Construct and Data Evidence
UniProt name PRGI_SALTY
Isoform —
PDB entities 6
Chains and sequence ranges Author chain AS； PDBConstruct 1–80； UniProt 1–80 Author chain AT； PDBConstruct 1–80； UniProt 1–80 Author chain AU； PDBConstruct 1–80； UniProt 1–80 Author chain AV； PDBConstruct 1–80； UniProt 1–80 Author chain AW； PDBConstruct 1–80； UniProt 1–80 Author chain AX； PDBConstruct 1–80； UniProt 1–80 Author chain AY； PDBConstruct 1–80； UniProt 1–80 Author chain AZ； PDBConstruct 1–80； UniProt 1–80 Author chain BA； PDBConstruct 1–80； UniProt 1–80 Author chain BB； PDBConstruct 1–80； UniProt 1–80 Author chain BC； PDBConstruct 1–80； UniProt 1–80 Author chain BD； PDBConstruct 1–80； UniProt 1–80 Author chain BE； PDBConstruct 1–80； UniProt 1–80

Protein PrgH

OrganismNot specified

UniProt P41783

State in the Current Structure

Assembly Physical composition Protein state Molecular copy count Associated components Data consistency
1 Protein heterocomplex Heteromer Protein 69 Surface presentation of antigens protein SpaP × 5 （P40700） Surface presentation of antigens protein SpaR × 1 （P40701） Surface presentation of antigens protein SpaQ × 4 （P0A1L7） Protein InvG × 16 （P35672） Protein PrgJ × 6 （P41785） Protein PrgI × 13 （P41784） Consistent with protein count

Other States of the Same Protein in the Database

Monomer
3gr0 3gr0 3gr0 3gr0 3gr1 3gr1 3gr1 3gr1 3gr1 3gr1 3gr1 3gr1

14 assemblies; showing the first 12

Homodimer

None

Homotetramer

None

Other homooligomers
3gr1 3gr1 3j1w 3j1x 4g2s

5 assemblies

Heteromeric or nucleic-acid complex
2y9j 3j6d 5tcp 5tcr 6duz 6pem 6pep 6q14 6q15 6q16 6uot 6uov

14 assemblies; showing the first 12

View Construct and Data Evidence
UniProt name PRGH_SALTY
Isoform —
PDB entities 7
Chains and sequence ranges Author chain E； PDBConstruct 1–392； UniProt 1–392 Author chain R； PDBConstruct 1–392； UniProt 1–392 Author chain S； PDBConstruct 1–392； UniProt 1–392 Author chain T； PDBConstruct 1–392； UniProt 1–392 Author chain U； PDBConstruct 1–392； UniProt 1–392 Author chain V； PDBConstruct 1–392； UniProt 1–392 Author chain W； PDBConstruct 1–392； UniProt 1–392 Author chain X； PDBConstruct 1–392； UniProt 1–392 Author chain Y； PDBConstruct 1–392； UniProt 1–392 Author chain Z； PDBConstruct 1–392； UniProt 1–392 Author chain a； PDBConstruct 1–392； UniProt 1–392 Author chain b； PDBConstruct 1–392； UniProt 1–392 Author chain c； PDBConstruct 1–392； UniProt 1–392 Author chain d； PDBConstruct 1–392； UniProt 1–392 Author chain e； PDBConstruct 1–392； UniProt 1–392 Author chain f； PDBConstruct 1–392； UniProt 1–392 Author chain g； PDBConstruct 1–392； UniProt 1–392 Author chain h； PDBConstruct 1–392； UniProt 1–392 Author chain i； PDBConstruct 1–392； UniProt 1–392 Author chain j； PDBConstruct 1–392； UniProt 1–392 Author chain k； PDBConstruct 1–392； UniProt 1–392 Author chain l； PDBConstruct 1–392； UniProt 1–392 Author chain m； PDBConstruct 1–392； UniProt 1–392 Author chain n； PDBConstruct 1–392； UniProt 1–392

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_id6pep
Deposition date deposition_date2019-06-20
Structure title titleFocussed refinement of InvGN0N1:SpaPQR:PrgIJ from the Salmonella SPI-1 injectisome needle complex
Keywords keywordsBacterial secretion, type III secretion, PROTEIN TRANSPORT; PROTEIN TRANSPORT
Experimental Method methodELECTRON 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.

6pep__assembly_1__model_1

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

Download this curve (.dat)

6pep__assembly_1__model_1 | I(q)

10-2 10-1 106 107 108 109 q (1/Angstrom) I(q)
100 plotted points; both axes use logarithmic scales.

6pep__assembly_1__model_1 | P(r) · Pending

The new assembly/model P(r) has not been calculated yet This placeholder does not display legacy data r (Angstrom) P(r)
P(r) will be calculated and displayed separately for the same assembly/model.
Rg（Guinier）57.56 Å
Rg (electron density)56.94 Å
Total Rg57.01 Å
Atom count45348
Residues5715
Excluded volume816800 ų
Maximum q0.500 Å⁻¹
Assembly Model Structure unit Oligomeric description Status CRYSOL Actions
1 1 6pep__assembly_1__model_1 69-meric （69） 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 (7)

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7. Citations (1)