9MN1 | pdb_00009mn1

E. coli SR1 single-ring GroEL oligomer

PDB DOI: https://doi.org/10.2210/pdb9MN1/pdb
EM Map EMD-48410: EMDB EMDataResource

Classification: CHAPERONE
Organism(s): Escherichia coli
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2024-12-20 Released: 2026-01-21
Deposition Author(s): Johnson, S.M., Chen, Q.
Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 2.40 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 9MN1

This is version 1.0 of the entry. See complete history.

Literature

Deciphering the unique mechanism whereby bis-sulfonamido-2-phenylbenzoxazole (PBZ) GroEL/ES inhibitors modulate chaperonin ATPase and client protein folding functions.

Stevens, M., Doud, E., Norambuena, J., Tepper, K., Trindl, C.A., Carpenter, R., Chapman, E., Boyd, J.M., Wells, C., Chen, Q., Johnson, S.M.

To be published.

Macromolecule Content

Total Structure Weight: 883.72 kDa
Atom Count: 59,500
Modeled Residue Count: 8,015
Deposited Residue Count: 8,351
Unique protein chains: 2

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
60 kDa chaperonin	A, B, C, D, E A, B, C, D, E, F, G, H, I, J, K, L, M, N	548	Escherichia coli	Mutation(s): 0 Gene Names: groEL, groL, mopA, BN17_41231, BU34_16740, ECs5124, LF82_0923 EC: 5.6.1.7
UniProt
Find proteins for Q548M1 (Escherichia coli) Explore Q548M1 Go to UniProtKB: Q548M1
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q548M1
Sequence Annotations Expand
Reference Sequence

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Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
10 kDa chaperonin	O, P, Q, R, S O, P, Q, R, S, T, U	97	Escherichia coli	Mutation(s): 0 Gene Names: groS, groES, mopB, BN17_41221, BU34_16745, ECs5123, LF82_0924
UniProt
Find proteins for Q7BGE6 (Escherichia coli) Explore Q7BGE6 Go to UniProtKB: Q7BGE6
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q7BGE6
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ATP (Subject of Investigation/LOI) Query on ATP Download:Ideal Coordinates CCD File SDF format, chain Z [auth B] SDF format, chain W [auth A] SDF format, chain OA [auth G] SDF format, chain LA [auth F] SDF format, chain IA [auth E] SDF format, chain FA [auth D] SDF format, chain CA [auth C] MOL2 format, chain Z [auth B] MOL2 format, chain W [auth A] MOL2 format, chain OA [auth G] MOL2 format, chain LA [auth F] MOL2 format, chain IA [auth E] MOL2 format, chain FA [auth D] MOL2 format, chain CA [auth C] mmCIF format, chain Z [auth B] mmCIF format, chain W [auth A] mmCIF format, chain OA [auth G] mmCIF format, chain LA [auth F] mmCIF format, chain IA [auth E] mmCIF format, chain FA [auth D] mmCIF format, chain CA [auth C]	CA [auth C] FA [auth D] IA [auth E] LA [auth F] OA [auth G] CA [auth C], FA [auth D], IA [auth E], LA [auth F], OA [auth G], W [auth A], Z [auth B]	ADENOSINE-5'-TRIPHOSPHATE C₁₀ H₁₆ N₅ O₁₃ P₃ ZKHQWZAMYRWXGA-KQYNXXCUSA-N		Interactions Focus chain CA [auth C] Focus chain FA [auth D] Focus chain IA [auth E] Focus chain LA [auth F] Focus chain OA [auth G] Focus chain W [auth A] Focus chain Z [auth B] Interactions & Density Focus chain CA [auth C] Focus chain FA [auth D] Focus chain IA [auth E] Focus chain LA [auth F] Focus chain OA [auth G] Focus chain W [auth A] Focus chain Z [auth B]
ADP (Subject of Investigation/LOI) Query on ADP Download:Ideal Coordinates CCD File SDF format, chain XA [auth J] SDF format, chain UA [auth I] SDF format, chain RA [auth H] SDF format, chain JB [auth N] SDF format, chain GB [auth M] SDF format, chain DB [auth L] SDF format, chain AB [auth K] MOL2 format, chain XA [auth J] MOL2 format, chain UA [auth I] MOL2 format, chain RA [auth H] MOL2 format, chain JB [auth N] MOL2 format, chain GB [auth M] MOL2 format, chain DB [auth L] MOL2 format, chain AB [auth K] mmCIF format, chain XA [auth J] mmCIF format, chain UA [auth I] mmCIF format, chain RA [auth H] mmCIF format, chain JB [auth N] mmCIF format, chain GB [auth M] mmCIF format, chain DB [auth L] mmCIF format, chain AB [auth K]	AB [auth K] DB [auth L] GB [auth M] JB [auth N] RA [auth H] AB [auth K], DB [auth L], GB [auth M], JB [auth N], RA [auth H], UA [auth I], XA [auth J]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain AB [auth K] Focus chain DB [auth L] Focus chain GB [auth M] Focus chain JB [auth N] Focus chain RA [auth H] Focus chain UA [auth I] Focus chain XA [auth J] Interactions & Density Focus chain AB [auth K] Focus chain DB [auth L] Focus chain GB [auth M] Focus chain JB [auth N] Focus chain RA [auth H] Focus chain UA [auth I] Focus chain XA [auth J]
K Query on K Download:Ideal Coordinates CCD File SDF format, chain ZA [auth K] SDF format, chain Y [auth B] SDF format, chain WA [auth J] SDF format, chain V [auth A] SDF format, chain TA [auth I] SDF format, chain QA [auth H] SDF format, chain NA [auth G] SDF format, chain KA [auth F] SDF format, chain IB [auth N] SDF format, chain HA [auth E] SDF format, chain FB [auth M] SDF format, chain EA [auth D] SDF format, chain CB [auth L] SDF format, chain BA [auth C] MOL2 format, chain ZA [auth K] MOL2 format, chain Y [auth B] MOL2 format, chain WA [auth J] MOL2 format, chain V [auth A] MOL2 format, chain TA [auth I] MOL2 format, chain QA [auth H] MOL2 format, chain NA [auth G] MOL2 format, chain KA [auth F] MOL2 format, chain IB [auth N] MOL2 format, chain HA [auth E] MOL2 format, chain FB [auth M] MOL2 format, chain EA [auth D] MOL2 format, chain CB [auth L] MOL2 format, chain BA [auth C] mmCIF format, chain ZA [auth K] mmCIF format, chain Y [auth B] mmCIF format, chain WA [auth J] mmCIF format, chain V [auth A] mmCIF format, chain TA [auth I] mmCIF format, chain QA [auth H] mmCIF format, chain NA [auth G] mmCIF format, chain KA [auth F] mmCIF format, chain IB [auth N] mmCIF format, chain HA [auth E] mmCIF format, chain FB [auth M] mmCIF format, chain EA [auth D] mmCIF format, chain CB [auth L] mmCIF format, chain BA [auth C]	BA [auth C] CB [auth L] EA [auth D] FB [auth M] HA [auth E] BA [auth C], CB [auth L], EA [auth D], FB [auth M], HA [auth E], IB [auth N], KA [auth F], NA [auth G], QA [auth H], TA [auth I], V [auth A], WA [auth J], Y [auth B], ZA [auth K]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N		Interactions Focus chain BA [auth C] Focus chain CB [auth L] Focus chain EA [auth D] Focus chain FB [auth M] Focus chain HA [auth E] Focus chain IB [auth N] Focus chain KA [auth F] Focus chain NA [auth G] Focus chain QA [auth H] Focus chain TA [auth I] Focus chain V [auth A] Focus chain WA [auth J] Focus chain Y [auth B] Focus chain ZA [auth K] Interactions & Density Focus chain BA [auth C] Focus chain CB [auth L] Focus chain EA [auth D] Focus chain FB [auth M] Focus chain HA [auth E] Focus chain IB [auth N] Focus chain KA [auth F] Focus chain NA [auth G] Focus chain QA [auth H] Focus chain TA [auth I] Focus chain V [auth A] Focus chain WA [auth J] Focus chain Y [auth B] Focus chain ZA [auth K]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain YA [auth J] SDF format, chain X [auth A] SDF format, chain VA [auth I] SDF format, chain SA [auth H] SDF format, chain PA [auth G] SDF format, chain MA [auth F] SDF format, chain KB [auth N] SDF format, chain JA [auth E] SDF format, chain HB [auth M] SDF format, chain GA [auth D] SDF format, chain EB [auth L] SDF format, chain DA [auth C] SDF format, chain BB [auth K] SDF format, chain AA [auth B] MOL2 format, chain YA [auth J] MOL2 format, chain X [auth A] MOL2 format, chain VA [auth I] MOL2 format, chain SA [auth H] MOL2 format, chain PA [auth G] MOL2 format, chain MA [auth F] MOL2 format, chain KB [auth N] MOL2 format, chain JA [auth E] MOL2 format, chain HB [auth M] MOL2 format, chain GA [auth D] MOL2 format, chain EB [auth L] MOL2 format, chain DA [auth C] MOL2 format, chain BB [auth K] MOL2 format, chain AA [auth B] mmCIF format, chain YA [auth J] mmCIF format, chain X [auth A] mmCIF format, chain VA [auth I] mmCIF format, chain SA [auth H] mmCIF format, chain PA [auth G] mmCIF format, chain MA [auth F] mmCIF format, chain KB [auth N] mmCIF format, chain JA [auth E] mmCIF format, chain HB [auth M] mmCIF format, chain GA [auth D] mmCIF format, chain EB [auth L] mmCIF format, chain DA [auth C] mmCIF format, chain BB [auth K] mmCIF format, chain AA [auth B]	AA [auth B] BB [auth K] DA [auth C] EB [auth L] GA [auth D] AA [auth B], BB [auth K], DA [auth C], EB [auth L], GA [auth D], HB [auth M], JA [auth E], KB [auth N], MA [auth F], PA [auth G], SA [auth H], VA [auth I], X [auth A], YA [auth J]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain AA [auth B] Focus chain BB [auth K] Focus chain DA [auth C] Focus chain EB [auth L] Focus chain GA [auth D] Focus chain HB [auth M] Focus chain JA [auth E] Focus chain KB [auth N] Focus chain MA [auth F] Focus chain PA [auth G] Focus chain SA [auth H] Focus chain VA [auth I] Focus chain X [auth A] Focus chain YA [auth J] Interactions & Density Focus chain AA [auth B] Focus chain BB [auth K] Focus chain DA [auth C] Focus chain EB [auth L] Focus chain GA [auth D] Focus chain HB [auth M] Focus chain JA [auth E] Focus chain KB [auth N] Focus chain MA [auth F] Focus chain PA [auth G] Focus chain SA [auth H] Focus chain VA [auth I] Focus chain X [auth A] Focus chain YA [auth J]

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 2.40 Å
Aggregation State: PARTICLE
Reconstruction Method: SINGLE PARTICLE

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-01-21

Deposition Author(s):

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R01GM120350

Revision History (Full details and data files)

Version 1.0: 2026-01-21
Type: Initial release

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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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.