2025-10-01 REL PDBe INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY INITIAL_RELEASE REPOSITORY STRUCTURE_SUMMARY em_admin pdbx_entry_details pdbx_validate_close_contact struct_conn _em_admin.last_update _pdbx_entry_details.has_protein_modification EXPERIMENTAL_SUMMARY em_admin _em_admin.last_update PDBe PDBe 2023-06-08 2023-12-13 2023-12-13 2025-10-01 European Research Council (ERC) BioMatrix 757507 European Union Cryo-EM structure of the c-di-GMP-bound FleQ-FleN master regulator complex from Pseudomonas aeruginosa Torres-Sanchez LT Krasteva PV Biofilm formation, c-di-GMP signaling, second messengers, bacterial secretion, gene regulation, bEBPs Torres-Sanchez L Gery Sana T Decossas M Hashem Y Krasteva PV Structures of the P. aeruginosa FleQ-FleN master regulators reveal large-scale conformational switching in motility and biofilm control. Proc.Natl.Acad.Sci.USA US 120 e2312276120 e2312276120 2023 38051770 doi:10.1073/pnas.2312276120 1091-6490 0040 PNASA6 EMD-17445 other EM volume
c-di-GMP free FleQ-FleN complex
 8pb9 FULLOVERLAP EMDB EMD-17445 other EM volume
c-di-GMP free FleQ-FleN complex
 EMDB EMD-17581 associated EM volume
Cryo-EM structure of the c-di-GMP-bound FleQ-FleN master regulator complex from Pseudomonas aeruginosa
 PDB 8p53 unspecified C-di-GMP bound FleQ-FleN complex from Pseudomonas aeruginosa C-di-GMP bound FleQ-FleN complex from Pseudomonas aeruginosa 0 1 2
C-di-GMP bound complex between FleQ REC and AAA+ domains and FleN D48A mutant from Pseudomonas aeruginosa
Pseudomonas aeruginosa PAO1 0.233 Transcriptional regulator FleQ Pseudomonas aeruginosa PAO1 0.044884315999999994
FleQ-receiver and AAA+ domains of Pseudomonas aeruginosa FleQ
3 Escherichia coli BL21(DE3) LEVO MGSWRETKLLLIDDNLDRSRDLAVILNFLGEDQLTCNSEDWREVAAGLSNSREALCVLLGSVESKGGAVELLKQLASWDE YLPILLIGEPAPADWPEELRRRVLASLEMPPSYNKLLDSLHRAQVYREMYDQARERGRSREPNLFRSLVGTSRAIQQVRQ MMQQVADTDASVLILGESGTGKEVVARNLHYHSKRREGPFVPVNCGAIPAELLESELFGHEKGAFTGAITSRAGRFELAN GGTLFLDEIGDMPLPMQVKLLRVLQERTFERVGSNKTQNVDVRIIAATHKNLEKMIEDGTFREDLYYRLNVFPIEMAPLR ERVEDIALLLNELISRMEHEKRGSIRFNSAAIMSLCRHDWPGNVRELANLVERLAIMHPYGVIGVGELPKKFRHVD G3XCV0 Antiactivator FleN Pseudomonas aeruginosa PAO1 0.030327141
Pseudomonas aeruginosa FleN D48A mutant
2 Escherichia coli BL21(DE3) LEVO GPMGSKQMGSMHPVQVIAVTGGKGGVGKTNVSVNLALALADLGRRVMLLDAALGLANVDVLLGLTPKRTLADVIEGRCEL RDVLLLGPGGVRIVPAASGTQSMVHLSPMQHAGLIQAFSDISDNLDVLVVDTAAGIGDSVVSFVRAAQEVLLVVCDEPTS ITDAYALIKLLNRDHGMTRFRVLANMAHSPQEGRNLFAKLTKVTDRFLDVALQYVGVIPYDESVRKAVQKQRAVYEAFPR SKASLAFKAVAQKVDSWPLPANPRGHLEFFVERLVQHPATGSAV G3XD64 9,9'-[(2R,3R,3aS,5S,7aR,9R,10R,10aS,12S,14aR)-3,5,10,12-tetrahydroxy-5,12-dioxidooctahydro-2H,7H-difuro[3,2-d:3',2'-j][1,3,7,9,2,8]tetraoxadiphosphacyclododecine-2,9-diyl]bis(2-amino-1,9-dihydro-6H-purin-6-one) 0.0006904109999999999 2 C2E PHOSPHOMETHYLPHOSPHONIC ACID ADENYLATE ESTER 0.000505208 2 ACP singleParticle particle 8.0
20 mM HEPES pH 8.0, 250mM NaCl, 2mM MgCl2, and 2% glycerol, 4 uM c-di-GMP, 200 uM ACP
 UltrAuFoil R1.2/1.3 GOLD GOLD HOLEY GLOW DISCHARGE AIR ETHANE 100 277 FEI VITROBOT MARK IV
triple deposition.
FleN-D48A and FleQ (REC-AAA+) coexpression from the pProEx-Htb and pRSFDuet1 vectors. Purified via the HRV3c- cleavable N-terminal hexahistidine tag on FleN
 FEI TITAN KRIOS FLOOD BEAM BRIGHT FIELD FIELD EMISSION GUN 300 2.7 0.8 2.0 GATAN K3 BIOQUANTUM (6k x 4k) 5760 4092 1 14640 50.3 1 Gctf
Gctf through cryoSPARC interface
PHASE FLIPPING AND AMPLITUDE CORRECTION Ab initio cryosparc Crystal structure fitting for handedness determination 1 C1 3.3 OTHER cryoSPARC
Due to flexibility, preferential orientation and partial occupancy for one of the subunits, the data was downsampled and the resolution used for refinement was cut to 3.3 angstrom after Deep EMhancer sharpening.
1283732 OTHER OTHER 3 cryoSPARC
2 045 780 particles total Class I : 1 283 732 particles (63%)
 emd_17581.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 200 200 200 0 0 0 200 200 200 283.8 283.8 283.8 90.0 90.0 90.0 X Y Z -0.001647067 1.9891975 0.0011743561 0.02463723 1.4189999 1.4189999 1.4189999 0.05 AUTHOR Deep EMhancer sharpened map of the c-di-GMP-bound FleQ-FleN master regulator complex of P. aeruginosa 5EXP, 5EXX, 4WXM, 7EJW Other experimental model
the model was interpreted by modular fitting of partial crystal structures and refined against the electron density
Crystal structures fitting Refined in Phenix, coot and Namdinator
REAL emd_17581_additional_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 200 200 200 0 0 0 200 200 200 283.8 283.8 283.8 90.0 90.0 90.0 X Y Z -0.33165315 1.0122507 0.0002563561 0.027368348 1.4189999 1.4189999 1.4189999 AUTHOR Unsharpened map of the c-di-GMP-bound FleQ-FleN master regulator complex of P. aeruginosa emd_17581_half_map_2.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 200 200 200 0 0 0 200 200 200 283.8 283.8 283.8 90.0 90.0 90.0 X Y Z -0.3568949 1.0279461 0.00096625177 0.02817729 1.4189999 1.4189999 1.4189999 AUTHOR Half-map of the c-di-GMP-bound FleQ-FleN master regulator complex of P. aeruginosa emd_17581_half_map_1.map.gz 1 IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) 200 200 200 0 0 0 200 200 200 283.8 283.8 283.8 90.0 90.0 90.0 X Y Z -0.35278448 1.0582893 0.000962415 0.028170513 1.4189999 1.4189999 1.4189999 AUTHOR Half-map of the c-di-GMP-bound FleQ-FleN master regulator complex of P. aeruginosa