6L7A

CsgFG complex in Curli biogenesis system


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.38 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Assembly and substrate recognition of curli biogenesis system.

Yan, Z.Yin, M.Chen, J.Li, X.

(2020) Nat Commun 11: 241-241

  • DOI: https://doi.org/10.1038/s41467-019-14145-7
  • Primary Citation of Related Structures:  
    6L7A, 6L7C

  • PubMed Abstract: 

    A major component of bacterial biofilms is curli amyloid fibrils secreted by the curli biogenesis system. Understanding the curli biogenesis mechanism is critical for developing therapeutic agents for biofilm-related infections. Here we report a systematic study of the curli biogenesis system, highlighted by structural, biochemical and functional analysis of the secretion channel complexes (CsgF-CsgG) with and without the curli substrate. The dual-pore architecture of the CsgF-CsgG complex was observed and used to develop an approach to inhibit the curli secretion by physically reducing the size of the CsgF pore. We further elucidated the assembly of the CsgFG complex with curli components (CsgA and CsgB) and curli-cell association through CsgF. Importantly, the recognition of the CsgA substrate by CsgG was uncovered. Nine crevices outside of the CsgG channel provide specific and highly-conserved recognition sites for CsgA N-terminus. Together with analysis of CsgE, our study provides comprehensive insights into curli biogenesis.


  • Organizational Affiliation

    Key Laboratory of Protein Sciences (Tsinghua University), Ministry of Education, Beijing, China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Curli production assembly/transport protein CsgG
A, B, C, D, E
A, B, C, D, E, F, G, H, I
277Escherichia coli O69:H11 str. 08-4661Mutation(s): 0 
Gene Names: BX06_26815
Membrane Entity: Yes 
UniProt
Find proteins for P0AEA2 (Escherichia coli (strain K12))
Explore P0AEA2 
Go to UniProtKB:  P0AEA2
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AEA2
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
CsgF
J, K, L, M, N
J, K, L, M, N, O, P, Q, R
138Escherichia coliMutation(s): 0 
Gene Names: 
csgFA6581_12775A6592_16410A8C65_09935A8G17_17590A8M42_01085A9819_06490A9R57_10355AC789_1c11470ACN002_1089ACN81_09400ACU57_27055ACU90_19250AJ318_00960AKG99_07850AM270_13185AM464_23205AMK83_16440AML07_18510APU18_12970APZ14_01615ARC77_26185AU473_14305AUQ13_23570AUS26_14005AW106_27240AWE53_020770AWF59_023705AWG78_002955AWP75_16905AZZ83_000749B1K96_25200B7C53_12210B9T59_24180BANRA_01291BANRA_01576BANRA_01635BANRA_04608BB545_06045BER14_09940BHS81_06565BHS87_05490BIQ87_05800BIU72_07215BIZ41_17475BJJ90_16050BK292_02235BK334_17375BK373_20095BK400_19610BMT49_08095BMT91_12220BN17_09001BON63_21540BON66_00235BON69_23620BON76_26665BON92_25375BON93_01750BTQ04_04830BTQ06_28615BUE81_01495BvCms12BK_01199BvCms2454_01967BvCms35BK_05180BvCmsA75A_03631BvCmsF63A_02901BvCmsH15A_03205BvCmsHHP001_05125BvCmsHHP019_01648BvCmsHHP056_03328BvCmsJ76A_01745BvCmsKKP061_02124BvCmsKSNP019_00536BvCmsKSNP073_05115BvCmsKSNP081_02155BvCmsKSNP120_02370BvCmsKSP008_00766BvCmsKSP011_05236BvCmsKSP015_04950BvCmsKSP018_00729BvCmsKSP024_02020BvCmsKSP026_03242BvCmsKSP036_02551BvCmsKSP039_03584BvCmsKSP040_00078BvCmsKSP045_01294BvCmsKSP054_01494BvCmsKSP058_01099BvCmsKSP061_05085BvCmsKSP067_02664BvCmsKSP076_00221BvCmsKSP081_01991BvCmsKSP083_04126BvCmsNSNP006_00926BvCmsNSNP023_01666BvCmsNSNP027_01041BvCmsNSNP036_01556BvCmsNSP006_01448BvCmsNSP007_03010BvCmsNSP039_04491BvCmsNSP045_01873BvCmsNSP047_03188BvCmsNSP052_01638BvCmsNSP072_01737BvCmsNSP078_01753BvCmsOUP014_03127BvCmsSINP011_02870BvCmsSINP022_01393BvCmsSINP036_02015BvCmsSIP006_02579BvCmsSIP010_04114BvCmsSIP019_05011BvCmsSIP044_01602BVL39_23020BW690_20185BWP17_14750C1I57_23660C2M16_23325C2U48_03735C3449_22250C4J69_16245C4K41_10685C5N07_21975C5P01_13585C5P43_18785C5P44_04330C6669_24200C6986_06430C6B13_08320C7235_15270C7B02_01110C7B06_10030C7B07_08350C9025_13220C9083_13050C9200_05635C9212_12645C9255_16880C9299_13245C9E25_15565C9E67_18455C9Y80_08970C9Y95_14355C9Z12_15420CA593_23315CDL37_22840CG692_25470CI641_021185CI694_24070COD30_07495COD46_11805CQP61_11360CR538_15905CR539_09835CRD98_09770CRE06_18275CRM83_09165CSB64_07125CT143_19775CT146_19235CVH05_20310CWM24_09415CWS33_22375D0X26_23320D1900_15070D1912_33520D2183_15675D2184_16790D2185_03375D2F89_16725D3821_20245D3822_19530D3C88_18190D3O91_17020D3Y67_15515D4M06_16745D7K63_17880D7K66_17230D7Y10_25390D9D20_13510D9E35_09110D9G11_01800D9G42_02010D9H53_22330D9H70_23200D9H94_04555D9I11_06735D9I18_09120D9I20_14875D9I87_24110D9I97_06115D9J03_24045D9J11_10875D9J44_05170D9K48_17895D9K54_26755D9L89_17300D9L99_25015D9X97_17120DAH26_20385DAH27_16630DAH36_09625DAH37_07515DEN86_26015DEN89_04050DEO11_03635DEO19_16190DIV22_28760DL455_07100DL545_15180DL800_08370DMI04_15810DNB37_24555DNQ41_09265DNR41_04640DOY56_16760DP258_00480DQE83_00815DQF57_17655DQO13_15190DS732_10230DS966_20145DTL43_16545DTL90_00105DTM10_22410DTM25_02505DU333_10225DW236_07305DXT71_23350E0E06_19720E2119_27400E2132_08845E2855_01310E2863_01207E5M00_13230EAI42_03980EAI46_03030EAI52_09335EB509_13100EB510_15335EB515_17370EC3234A_26c00110EC3426_01949EC95NR1_05434ECONIH1_06410ECs1415ECTO6_02921ED225_16610ED600_22300ED607_11755ED611_18205ED648_24045ED903_22580ED944_18280EEA45_10640EEP23_24640EF173_18855EFV06_07775EFV08_14150EGY17_18935EIA08_02665EIA21_07755EJC75_04035EJH97_14750EKI52_04095EL75_2704EL79_2739EL80_2716ELT33_12235EO241_06505EPS94_06625EPS97_23230EQ825_00060ERL57_04175ERS085365_03587ERS085379_02716ERS085383_03172ERS085404_02838ERS085406_01151ERS085416_00210ERS139211_03440ERS150873_02816ERS150876_03011EVY21_12440EWK56_19810EXM29_11820ExPECSC022_03109ExPECSC038_03439EXX06_01125EXX13_00845EXX23_16015EXX24_14295EXX53_14790EXX55_01320EXX71_17360EXX78_02225EXX87_08890EYY78_26035GJ11_06285HmCms184_02447HmCmsJML079_02982HmCmsJML146_03699HmCmsJML204_00878HW43_08900JD73_25430MJ49_00980MS6198_11710MS8345_01023NCTC10418_04583NCTC10429_05442NCTC10766_04503NCTC10767_04990NCTC11022_00191NCTC11126_00990NCTC11341_04818NCTC13127_04125NCTC13462_01067NCTC7922_00566NCTC7927_03442NCTC8009_05720NCTC8179_02810NCTC8622_05879NCTC8960_00713NCTC8985_01811NCTC9007_01932NCTC9036_03192NCTC9045_03609NCTC9055_04891NCTC9058_03886NCTC9062_05238NCTC9075_04088NCTC9111_03151NCTC9119_03148NCTC9434_03595NCTC9701_03328NCTC9703_02363NCTC9706_00463NCTC9777_03104NCTC9962_01914NCTC9969_03241PU06_15680RG28_16620RK56_002580RX35_02724SAMEA3472043_03793SAMEA3472044_05359SAMEA3472047_01444SAMEA3472055_02534SAMEA3472056_01744SAMEA3472070_03172SAMEA3472080_02978SAMEA3472090_04886SAMEA3472108_02247SAMEA3472114_01584SAMEA3472147_02312SAMEA3484427_03684SAMEA3484429_03764SAMEA3485101_00247SAMEA3485113_04376SAMEA3752553_01957SAMEA3752557_01505SAMEA3752559_02004SAMEA3752620_04473SAMEA3753064_00899SAMEA3753097_05333SAMEA3753164_01770SAMEA3753290_02723SK85_01106UN86_07965UN91_14220WQ89_17310WR15_23585

Membrane Entity: Yes 
UniProt
Find proteins for P0AE98 (Escherichia coli (strain K12))
Explore P0AE98 
Go to UniProtKB:  P0AE98
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP0AE98
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.38 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2020-01-15
    Type: Initial release
  • Version 1.1: 2020-01-29
    Changes: Database references
  • Version 1.2: 2024-03-27
    Changes: Data collection, Database references