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- EMDB-18507: Structure of BAM-EspP complex in the non-closing EspP state -

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Basic information

Entry
Database: EMDB / ID: EMD-18507
TitleStructure of BAM-EspP complex in the non-closing EspP state
Map data
Sample
  • Complex: BAM-EspP complex with BamA-G431C/EspP-N1293C mutations in nanodisc
    • Complex: BAM
      • Protein or peptide: Outer membrane protein assembly factor BamA
      • Protein or peptide: Outer membrane protein assembly factor BamB
      • Protein or peptide: Outer membrane protein assembly factor BamC
      • Protein or peptide: Outer membrane protein assembly factor BamD
      • Protein or peptide: Outer membrane protein assembly factor BamE
    • Complex: EspP
      • Protein or peptide: EspP epsilon
KeywordsComplex / MEMBRANE PROTEIN
Function / homology
Function and homology information


Bam protein complex / Gram-negative-bacterium-type cell outer membrane assembly / protein insertion into membrane / cell outer membrane / protein-macromolecule adaptor activity / periplasmic space / cell adhesion / serine-type endopeptidase activity / response to antibiotic / cell surface ...Bam protein complex / Gram-negative-bacterium-type cell outer membrane assembly / protein insertion into membrane / cell outer membrane / protein-macromolecule adaptor activity / periplasmic space / cell adhesion / serine-type endopeptidase activity / response to antibiotic / cell surface / proteolysis / extracellular region / identical protein binding / membrane
Similarity search - Function
Peptidase S6, IgA endopeptidase / Peptidase family S6 domain / Immunoglobulin A1 protease / Peptidase family S6 domain profile. / Autotransporter beta-domain / Outer membrane autotransporter barrel / Autotransporter beta-domain / Autotransporter beta-domain profile. / Autotransporter beta-domain / Autotransporter beta-domain superfamily ...Peptidase S6, IgA endopeptidase / Peptidase family S6 domain / Immunoglobulin A1 protease / Peptidase family S6 domain profile. / Autotransporter beta-domain / Outer membrane autotransporter barrel / Autotransporter beta-domain / Autotransporter beta-domain profile. / Autotransporter beta-domain / Autotransporter beta-domain superfamily / Autotransporter, pectate lyase C-like domain superfamily / Outer membrane protein assembly factor BamB / NlpB/DapX lipoprotein / Outer membrane protein assembly factor BamC / Outer membrane protein assembly factor BamC, C-terminal / NlpB/DapX lipoprotein / Outer membrane protein assembly factor BamD / Outer membrane protein assembly factor BamE / Lipoprotein SmpA/OmlA / Outer membrane lipoprotein BamD-like / SmpA / OmlA family / Outer membrane lipoprotein / BamE-like / Outer membrane protein assembly factor BamA / POTRA domain, BamA/TamA-like / Surface antigen variable number repeat / Pyrrolo-quinoline quinone repeat / PQQ-like domain / POTRA domain / POTRA domain profile. / Surface antigen D15-like / Bacterial surface antigen (D15) / Omp85 superfamily domain / Pyrrolo-quinoline quinone beta-propeller repeat / beta-propeller repeat / Pectin lyase fold/virulence factor / Quinoprotein alcohol dehydrogenase-like superfamily / Prokaryotic membrane lipoprotein lipid attachment site profile. / Tetratricopeptide-like helical domain superfamily / WD40/YVTN repeat-like-containing domain superfamily
Similarity search - Domain/homology
EspP epsilon / Outer membrane protein assembly factor BamC / Outer membrane protein assembly factor BamE / Outer membrane protein assembly factor BamA / Outer membrane protein assembly factor BamD / Outer membrane protein assembly factor BamB
Similarity search - Component
Biological speciesEscherichia coli K-12 (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.36 Å
AuthorsXie T / Pang J / Shen C / Chang S / Tang X / Zhang X / Dong H / Zhou R
Funding support China, 1 items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC) China
CitationJournal: To Be Published
Title: Dynamic topology-mediated maturation of beta-barrel proteins in BAM-catalyzed folding
Authors: Xie T / Chan KC / Pang J / Shen C / Chang S / Buratto D / Tang X / Zhang X / Dong H / Zhou R
History
DepositionSep 25, 2023-
Header (metadata) releaseOct 2, 2024-
Map releaseOct 2, 2024-
UpdateOct 2, 2024-
Current statusOct 2, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_18507.png

Downloads & links

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Map

FileDownload / File: emd_18507.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.93 Å/pix.
x 256 pix.
= 238.08 Å		0.93 Å/pix.
x 256 pix.
= 238.08 Å		0.93 Å/pix.
x 256 pix.
= 238.08 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.93 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.06
Minimum - Maximum-0.78236353 - 1.4021909
Average (Standard dev.)-0.0002910889 (±0.027553191)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 238.08 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: Local refinement

Fileemd_18507_additional_1.map
AnnotationLocal refinement
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_18507_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #1

Fileemd_18507_half_map_2.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : BAM-EspP complex with BamA-G431C/EspP-N1293C mutations in nanodisc

EntireName: BAM-EspP complex with BamA-G431C/EspP-N1293C mutations in nanodisc
Components
  • Complex: BAM-EspP complex with BamA-G431C/EspP-N1293C mutations in nanodisc
    • Complex: BAM
      • Protein or peptide: Outer membrane protein assembly factor BamA
      • Protein or peptide: Outer membrane protein assembly factor BamB
      • Protein or peptide: Outer membrane protein assembly factor BamC
      • Protein or peptide: Outer membrane protein assembly factor BamD
      • Protein or peptide: Outer membrane protein assembly factor BamE
    • Complex: EspP
      • Protein or peptide: EspP epsilon

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Supramolecule #1: BAM-EspP complex with BamA-G431C/EspP-N1293C mutations in nanodisc

SupramoleculeName: BAM-EspP complex with BamA-G431C/EspP-N1293C mutations in nanodisc
type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Escherichia coli K-12 (bacteria)

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Supramolecule #2: BAM

SupramoleculeName: BAM / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#5
Source (natural)Organism: Escherichia coli K-12 (bacteria)

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Supramolecule #3: EspP

SupramoleculeName: EspP / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #6
Source (natural)Organism: Escherichia coli K-12 (bacteria)

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Macromolecule #1: Outer membrane protein assembly factor BamA

MacromoleculeName: Outer membrane protein assembly factor BamA / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 90.689477 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: MAMKKLLIAS LLFSSATVYG AEGFVVKDIH FEGLQRVAVG AALLSMPVRT GDTVNDEDIS NTIRALFATG NFEDVRVLRD GDTLLVQVK ERPTIASITF SGNKSVKDDM LKQNLEASGV RVGESLDRTT IADIEKGLED FYYSVGKYSA SVKAVVTPLP R NRVDLKLV ...String:
MAMKKLLIAS LLFSSATVYG AEGFVVKDIH FEGLQRVAVG AALLSMPVRT GDTVNDEDIS NTIRALFATG NFEDVRVLRD GDTLLVQVK ERPTIASITF SGNKSVKDDM LKQNLEASGV RVGESLDRTT IADIEKGLED FYYSVGKYSA SVKAVVTPLP R NRVDLKLV FQEGVSAEIQ QINIVGNHAF TTDELISHFQ LRDEVPWWNV VGDRKYQKQK LAGDLETLRS YYLDRGYARF NI DSTQVSL TPDKKGIYVT VNITEGDQYK LSGVEVSGNL AGHSAEIEQL TKIEPGELYN GTKVTKMEDD IKKLLGRYGY AYP RVQSMP EINDADKTVK LRVNVDAGNR FYVRKIRFEG NDTSKDAVLR REMRQMEGAW LGSDLVDQGK ERLNRLGFFE TVDT DTQRV PGSPDQVDVV YKVKERNTGS FNFGICYGTE SGVSFQAGVQ QDNWLGTGYA VGINGTKNDY QTYAELSVTN PYFTV DGVS LGGRLFYNDF QADDADLSDY TNKSYGTDVT LGFPINEYNS LRAGLGYVHN SLSNMQPQVA MWRYLYSMGE HPSTSD QDN SFKTDDFTFN YGWTYNKLDR GYFPTDGSRV NLTGKVTIPG SDNEYYKVTL DTATYVPIDD DHKWVVLGRT RWGYGDG LG GKEMPFYENF YAGGSSTVRG FQSNTIGPKA VYFPHQASNY DPDYDYECAT QDGAKDLCKS DDAVGGNAMA VASLEFIT P TPFISDKYAN SVRTSFFWDM GTVWDTNWDS SQYSGYPDYS DPSNIRMSAG IALQWMSPLG PLVFSYAQPF KKYDGDKAE QFQFNIGKTW

UniProtKB: Outer membrane protein assembly factor BamA

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Macromolecule #2: Outer membrane protein assembly factor BamB

MacromoleculeName: Outer membrane protein assembly factor BamB / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 41.918945 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: MQLRKLLLPG LLSVTLLSGC SLFNSEEDVV KMSPLPTVEN QFTPTTAWST SVGSGIGNFY SNLHPALADN VVYAADRAGL VKALNADDG KEIWSVSLAE KDGWFSKEPA LLSGGVTVSG GHVYIGSEKA QVYALNTSDG TVAWQTKVAG EALSRPVVSD G LVLIHTSN ...String:
MQLRKLLLPG LLSVTLLSGC SLFNSEEDVV KMSPLPTVEN QFTPTTAWST SVGSGIGNFY SNLHPALADN VVYAADRAGL VKALNADDG KEIWSVSLAE KDGWFSKEPA LLSGGVTVSG GHVYIGSEKA QVYALNTSDG TVAWQTKVAG EALSRPVVSD G LVLIHTSN GQLQALNEAD GAVKWTVNLD MPSLSLRGES APTTAFGAAV VGGDNGRVSA VLMEQGQMIW QQRISQATGS TE IDRLSDV DTTPVVVNGV VFALAYNGNL TALDLRSGQI MWKRELGSVN DFIVDGNRIY LVDQNDRVMA LTIDGGVTLW TQS DLLHRL LTSPVLYNGN LVVGDSEGYL HWINVEDGRF VAQQKVDSSG FQTEPVAADG KLLIQAKDGT VYSITR

UniProtKB: Outer membrane protein assembly factor BamB

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Macromolecule #3: Outer membrane protein assembly factor BamC

MacromoleculeName: Outer membrane protein assembly factor BamC / type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 36.875277 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: MAYSVQKSRL AKVAGVSLVL LLAACSSDSR YKRQVSGDEA YLEAAPLAEL HAPAGMILPV TSGDYAIPVT NGSGAVGKAL DIRPPAQPL ALVSGARTQF TGDTASLLVE NGRGNTLWPQ VVSVLQAKNY TITQRDDAGQ TLTTDWVQWN RLDEDEQYRG R YQISVKPQ ...String:
MAYSVQKSRL AKVAGVSLVL LLAACSSDSR YKRQVSGDEA YLEAAPLAEL HAPAGMILPV TSGDYAIPVT NGSGAVGKAL DIRPPAQPL ALVSGARTQF TGDTASLLVE NGRGNTLWPQ VVSVLQAKNY TITQRDDAGQ TLTTDWVQWN RLDEDEQYRG R YQISVKPQ GYQQAVTVKL LNLEQAGKPV ADAASMQRYS TEMMNVISAG LDKSATDAAN AAQNRASTTM DVQSAADDTG LP MLVVRGP FNVVWQRLPA ALEKVGMKVT DSTRSQGNMA VTYKPLSDSD WQELGASDPG LASGDYKLQV GDLDNRSSLQ FID PKGHTL TQSQNDALVA VFQAAFSK

UniProtKB: Outer membrane protein assembly factor BamC

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Macromolecule #4: Outer membrane protein assembly factor BamD

MacromoleculeName: Outer membrane protein assembly factor BamD / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 27.85835 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: MTRMKYLVAA ATLSLFLAGC SGSKEEVPDN PPNEIYATAQ QKLQDGNWRQ AITQLEALDN RYPFGPYSQQ VQLDLIYAYY KNADLPLAQ AAIDRFIRLN PTHPNIDYVM YMRGLTNMAL DDSALQGFFG VDRSDRDPQH ARAAFSDFSK LVRGYPNSQY T TDATKRLV ...String:
MTRMKYLVAA ATLSLFLAGC SGSKEEVPDN PPNEIYATAQ QKLQDGNWRQ AITQLEALDN RYPFGPYSQQ VQLDLIYAYY KNADLPLAQ AAIDRFIRLN PTHPNIDYVM YMRGLTNMAL DDSALQGFFG VDRSDRDPQH ARAAFSDFSK LVRGYPNSQY T TDATKRLV FLKDRLAKYE YSVAEYYTER GAWVAVVNRV EGMLRDYPDT QATRDALPLM ENAYRQMQMN AQAEKVAKII AA NSSNT

UniProtKB: Outer membrane protein assembly factor BamD

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Macromolecule #5: Outer membrane protein assembly factor BamE

MacromoleculeName: Outer membrane protein assembly factor BamE / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 13.530256 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
MRCKTLTAAA AVLLMLTAGC STLERVVYRP DINQGNYLTA NDVSKIRVGM TQQQVAYALG TPLMSDPFGT NTWFYVFRQQ PGHEGVTQQ TLTLTFNSSG VLTNIDNKPA LSGNGGHHHH HHHH

UniProtKB: Outer membrane protein assembly factor BamE

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Macromolecule #6: EspP epsilon

MacromoleculeName: EspP epsilon / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Escherichia coli K-12 (bacteria)
Molecular weightTheoretical: 38.727812 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: NIELVSAPKD TNENVFKASK QTIGFSDVTP VITTRETDDK ITWSLTGYNT VANKEATRNA AALFSVDYKA FLNEVNNLNK RMGDLRDIN GEAGAWARIM SGTGSASGGF SDNYTHVQVG VDKKHELDGL DLFTGFTVTH TDSSASADVF SGKTKSVGAG L YASAMFDS ...String:
NIELVSAPKD TNENVFKASK QTIGFSDVTP VITTRETDDK ITWSLTGYNT VANKEATRNA AALFSVDYKA FLNEVNNLNK RMGDLRDIN GEAGAWARIM SGTGSASGGF SDNYTHVQVG VDKKHELDGL DLFTGFTVTH TDSSASADVF SGKTKSVGAG L YASAMFDS GAYIDLIGKY VHHDNEYTAT FAGLGTRDYS THSWYAGAEA GYRYHVTEDA WIEPQAELVY GSVSGKQFAW KD QGMHLSM KDKDYNPLIG RTGVDVGKSF SGKDWKVTAR AGLGYQFDLL ANGETVLRDA SGEKRIKGEK DSRMLMSVGL NAE IRDNVR FGLEFEKSAF GKYNVDNAVC ANFRYSF

UniProtKB: EspP epsilon

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.8
GridModel: Quantifoil R1.2/1.3 / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsCalibrated defocus max: 2.0 µm / Calibrated defocus min: 1.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: NONE
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.36 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 162981
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

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