9MMZ | pdb_00009mmz

E. coli SR1 single-ring GroEL oligomer

• PDB DOI: https://doi.org/10.2210/pdb9MMZ/pdb
• EM Map EMD-48408: 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)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

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.

Biological Assembly 1  

Global Symmetry: Cyclic - C7  (Explore in 3D)
Global Stoichiometry: Homo 7-mer - A7 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 400.83 kDa 
• Atom Count: 22,358 
• Modeled Residue Count: 3,059 
• Deposited Residue Count: 3,836 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chaperonin GroEL	A, B, C, D, E, F, G [auth H]	548	Escherichia coli	Mutation(s): 0  Gene Names:  groL, groEL, groL_1, A2J79_003959, A2J79_005474, A5U30_003693, ABE91_001090, ACN81_06325, ACU57_19295, B6R15_002033, B6R31_000859, BANRA_00147, BANRA_02830, BB545_11040, BCB93_001198, BG944_005198, BGM66_001100, BGZ_01627, BGZ_05100, BK300_24275, BK383_12940, BKL28_003536, BKL28_005489, BMT50_06320, BMT91_05495, BRV02_002050, BTB68_004143, BTQ06_07135, BvCmsKKP061_03324, BvCmsNSP007_04896, BvCmsSIP010_01340, BXT93_23590, C0P57_003473, C1Q91_002277, C2M16_07145, C2R31_001785, C2R31_005321, C3F40_14340, C6669_06700, C719_002796, C7B02_22870, C9160_20130, C9194_23880, C9Z68_08425, CCS08_01935, CF22_001662, CF22_005318, CG704_01665, CIG67_06440, CQ842_09470, CQ842_11950, CV83915_01888, CWS33_03390, D3C88_27260, D3G36_16020, D3G36_27385, D4N09_04290, D9D43_14725, D9E49_11975, D9J61_09370, DD762_21030, DL968_22275, DNQ45_22695, DNX30_08345, DNX30_30410, DS732_02495, DTL43_02185, DU321_10255, E2865_05408, E4K51_08915, E5H86_25825, E6D34_03900, EAI46_05875, ECs5124, EIA08_20145, EN85_000862, EPS76_03470, EPS97_10040, EWK56_08835, ExPECSC038_04651, F7F11_04220, F7N46_18305, F7N46_27130, F9413_14230, F9461_18160, F9461_28440, F9B07_06155, FGAF848_41910, FIJ20_10460, FJQ40_01790, FKO60_18130, FOI11_014910, FOI11_20770, FPI65_25535, FPS11_04035, FPS11_29800, FVB16_06060, FZU14_15570, G3V95_22465, G3W53_08890, G4A38_02930, G4A47_11060, GAI89_04545, GAJ12_10905, GKF66_07975, GNW61_00495, GNZ05_11940, GOP25_14290, GP711_17780, GP944_08950, GP954_08230, GP975_02890, GQE86_14145, GQM04_14160, GQM13_10590, GQM21_05675, GQN24_09575, GQN34_02395, GRC73_06265, GRW05_17640, GRW24_06445, GTP92_21420, GUC01_08885, HEP30_014195, HHH44_003373, HI055_001395, HI055_004873, HIE29_005290, HJQ60_002547, HJQ60_005759, HKA49_000870, HLX92_12540, HLZ39_23060, HLZ50_12865, HMV95_06875, HV109_21650, HV209_20120, HVV39_15060, HVW04_12630, HVW43_14140, HVY77_23275, I6H00_16320, I6H02_16535, IFC14_000451, IFC14_005433, IH772_04800, J5U05_001408, J8F57_000144, JNA68_20335, JNP96_02875, NCTC10082_01857, NCTC10089_04560, NCTC10418_06721, NCTC10764_04513, NCTC10767_00467, NCTC10865_05650, NCTC10974_05136, NCTC11112_02719, NCTC11181_01789, NCTC11341_03019, NCTC7927_05027, NCTC8333_05251, NCTC8500_05095, NCTC8621_04680, NCTC8622_02021, NCTC8959_04316, NCTC8960_02051, NCTC9044_02622, NCTC9045_05354, NCTC9073_03984, NCTC9077_05690, NCTC9081_01494, NCTC9117_05641, NCTC9702_05313, NCTC9706_01822, NOI85_20245, NY836_27345, OFN31_10965, OGM49_01575, P6223_004291, PWL68_003757, PWL68_005303, Q2V20_10495, Q2V64_07780, QDW62_23655, QO046_18850, R8G00_19495, R8O40_003300, R8O40_005491, RZR61_04445, SAMEA3472044_01554, SAMEA3472056_01662, V9Z47_22995, WR15_07175 EC: 5.6.1.7
UniProt
Find proteins for Q548M1 (Escherichia coli) Explore Q548M1  Go to UniProtKB:  Q548M1

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.20 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-01-21 
Deposition Author(s): Johnson, S.M., Chen, Q.

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

Revision History  

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