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- EMDB-8908: Cryo-EM structure of beta-galactosidase using RELION on Amazon We... -

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Basic information

Entry
Database: EMDB / ID: EMD-8908
TitleCryo-EM structure of beta-galactosidase using RELION on Amazon Web Services
Map dataSharped, filtered 3D reconstruction from RELION
Sample
  • Complex: beta-galactosidase
    • Protein or peptide: Beta-galactosidase
Function / homology
Function and homology information


alkali metal ion binding / lactose catabolic process / beta-galactosidase complex / beta-galactosidase / beta-galactosidase activity / carbohydrate binding / magnesium ion binding / identical protein binding
Similarity search - Function
Glycoside hydrolase, family 2, beta-galactosidase / Beta galactosidase small chain/ domain 5 / Beta-galactosidase, domain 4 / Beta galactosidase small chain / Beta-galactosidase, domain 4 / Beta galactosidase small chain / Glycoside hydrolase, family 2, active site / Glycosyl hydrolases family 2 acid/base catalyst. / Glycoside hydrolase, family 2, conserved site / Glycosyl hydrolases family 2 signature 1. ...Glycoside hydrolase, family 2, beta-galactosidase / Beta galactosidase small chain/ domain 5 / Beta-galactosidase, domain 4 / Beta galactosidase small chain / Beta-galactosidase, domain 4 / Beta galactosidase small chain / Glycoside hydrolase, family 2, active site / Glycosyl hydrolases family 2 acid/base catalyst. / Glycoside hydrolase, family 2, conserved site / Glycosyl hydrolases family 2 signature 1. / Glycoside hydrolase, family 2 / Glycoside hydrolase family 2, catalytic domain / Glycosyl hydrolases family 2, TIM barrel domain / Glycoside hydrolase, family 2, immunoglobulin-like beta-sandwich / Glycosyl hydrolases family 2, sugar binding domain / Glycosyl hydrolases family 2 / Glycosyl hydrolases family 2, sugar binding domain / Beta-Galactosidase/glucuronidase domain superfamily / Glycoside hydrolase-type carbohydrate-binding / Galactose mutarotase-like domain superfamily / Galactose-binding-like domain superfamily / Glycoside hydrolase superfamily / Immunoglobulin-like fold
Similarity search - Domain/homology
Biological speciesEscherichia coli (E. coli) / Escherichia coli (strain K12) (bacteria)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.2 Å
AuthorsCianfrocco MA / Lahiri I / DiMaio F / Leschziner AE
Funding support United States, 2 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM107214 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM123089 United States
CitationJournal: J Struct Biol / Year: 2018
Title: cryoem-cloud-tools: A software platform to deploy and manage cryo-EM jobs in the cloud.
Authors: Michael A Cianfrocco / Indrajit Lahiri / Frank DiMaio / Andres E Leschziner /
Abstract: Access to streamlined computational resources remains a significant bottleneck for new users of cryo-electron microscopy (cryo-EM). To address this, we have developed tools that will submit cryo-EM ...Access to streamlined computational resources remains a significant bottleneck for new users of cryo-electron microscopy (cryo-EM). To address this, we have developed tools that will submit cryo-EM analysis routines and atomic model building jobs directly to Amazon Web Services (AWS) from a local computer or laptop. These new software tools ("cryoem-cloud-tools") have incorporated optimal data movement, security, and cost-saving strategies, giving novice users access to complex cryo-EM data processing pipelines. Integrating these tools into the RELION processing pipeline and graphical user interface we determined a 2.2 Å structure of ß-galactosidase in ∼55 h on AWS. We implemented a similar strategy to submit Rosetta atomic model building and refinement to AWS. These software tools dramatically reduce the barrier for entry of new users to cloud computing for cryo-EM and are freely available at cryoem-tools.cloud.
History
DepositionJun 13, 2018-
Header (metadata) releaseJul 11, 2018-
Map releaseJul 11, 2018-
UpdateDec 2, 2020-
Current statusDec 2, 2020Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.0233
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.0233
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6drv
  • Surface level: 0.0233
  • Imaged by UCSF Chimera
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  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-6drv
  • Imaged by Jmol
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_8908.png

Downloads & links

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Map

FileDownload / File: emd_8908.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationSharped, filtered 3D reconstruction from RELION
Voxel sizeX=Y=Z: 0.637 Å
Density
Contour LevelBy AUTHOR: 0.0233 / Movie #1: 0.0233
Minimum - Maximum-0.07509618 - 0.13236588
Average (Standard dev.)-0.000012319761 (±0.0059158434)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 244.608 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.6370.6370.637
M x/y/z384384384
origin x/y/z0.0000.0000.000
length x/y/z244.608244.608244.608
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS384384384
D min/max/mean-0.0750.132-0.000

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Supplemental data

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Mask #1

Fileemd_8908_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: Unfiltered, unsharped 3D reconstruction from RELION

Fileemd_8908_additional.map
AnnotationUnfiltered, unsharped 3D reconstruction from RELION
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map 1

Fileemd_8908_half_map_1.map
AnnotationHalf map 1
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map 2

Fileemd_8908_half_map_2.map
AnnotationHalf map 2
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : beta-galactosidase

EntireName: beta-galactosidase
Components
  • Complex: beta-galactosidase
    • Protein or peptide: Beta-galactosidase

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Supramolecule #1: beta-galactosidase

SupramoleculeName: beta-galactosidase / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Escherichia coli (E. coli)
Recombinant expressionOrganism: Escherichia coli (E. coli)
Molecular weightTheoretical: 466 kDa/nm

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Macromolecule #1: Beta-galactosidase

MacromoleculeName: Beta-galactosidase / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: beta-galactosidase
Source (natural)Organism: Escherichia coli (strain K12) (bacteria) / Strain: K12
Molecular weightTheoretical: 116.602484 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MTMITDSLAV VLQRRDWENP GVTQLNRLAA HPPFASWRNS EEARTDRPSQ QLRSLNGEWR FAWFPAPEAV PESWLECDLP EADTVVVPS NWQMHGYDAP IYTNVTYPIT VNPPFVPTEN PTGCYSLTFN VDESWLQEGQ TRIIFDGVNS AFHLWCNGRW V GYGQDSRL ...String:
MTMITDSLAV VLQRRDWENP GVTQLNRLAA HPPFASWRNS EEARTDRPSQ QLRSLNGEWR FAWFPAPEAV PESWLECDLP EADTVVVPS NWQMHGYDAP IYTNVTYPIT VNPPFVPTEN PTGCYSLTFN VDESWLQEGQ TRIIFDGVNS AFHLWCNGRW V GYGQDSRL PSEFDLSAFL RAGENRLAVM VLRWSDGSYL EDQDMWRMSG IFRDVSLLHK PTTQISDFHV ATRFNDDFSR AV LEAEVQM CGELRDYLRV TVSLWQGETQ VASGTAPFGG EIIDERGGYA DRVTLRLNVE NPKLWSAEIP NLYRAVVELH TAD GTLIEA EACDVGFREV RIENGLLLLN GKPLLIRGVN RHEHHPLHGQ VMDEQTMVQD ILLMKQNNFN AVRCSHYPNH PLWY TLCDR YGLYVVDEAN IETHGMVPMN RLTDDPRWLP AMSERVTRMV QRDRNHPSVI IWSLGNESGH GANHDALYRW IKSVD PSRP VQYEGGGADT TATDIICPMY ARVDEDQPFP AVPKWSIKKW LSLPGETRPL ILCEYAHAMG NSLGGFAKYW QAFRQY PRL QGGFVWDWVD QSLIKYDENG NPWSAYGGDF GDTPNDRQFC MNGLVFADRT PHPALTEAKH QQQFFQFRLS GQTIEVT SE YLFRHSDNEL LHWMVALDGK PLASGEVPLD VAPQGKQLIE LPELPQPESA GQLWLTVRVV QPNATAWSEA GHISAWQQ W RLAENLSVTL PAASHAIPHL TTSEMDFCIE LGNKRWQFNR QSGFLSQMWI GDKKQLLTPL RDQFTRAPLD NDIGVSEAT RIDPNAWVER WKAAGHYQAE AALLQCTADT LADAVLITTA HAWQHQGKTL FISRKTYRID GSGQMAITVD VEVASDTPHP ARIGLNCQL AQVAERVNWL GLGPQENYPD RLTAACFDRW DLPLSDMYTP YVFPSENGLR CGTRELNYGP HQWRGDFQFN I SRYSQQQL METSHRHLLH AEEGTWLNID GFHMGIGGDD SWSPSVSAEF QLSAGRYHYQ LVWCQK

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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: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 45.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: EMDB MAP
EMDB ID:

2984

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionApplied symmetry - Point group: D2 (2x2 fold dihedral) / Resolution.type: BY AUTHOR / Resolution: 2.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 106237
FSC plot (resolution estimation)

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