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- EMDB-18126: Structural studies of human serum albumin using cryo-EM up to 0.3... -

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Basic information

Entry
Database: EMDB / ID: EMD-18126
TitleStructural studies of human serum albumin using cryo-EM up to 0.38 nm resolution
Map data
Sample
  • Complex: Monomer of human serum albumin
    • Protein or peptide: Serum albumin
Keywordshuman serum albumin / monomer / TRANSPORT PROTEIN
Function / homology
Function and homology information


Ciprofloxacin ADME / exogenous protein binding / cellular response to calcium ion starvation / enterobactin binding / Heme biosynthesis / HDL remodeling / negative regulation of mitochondrial depolarization / Prednisone ADME / Heme degradation / Aspirin ADME ...Ciprofloxacin ADME / exogenous protein binding / cellular response to calcium ion starvation / enterobactin binding / Heme biosynthesis / HDL remodeling / negative regulation of mitochondrial depolarization / Prednisone ADME / Heme degradation / Aspirin ADME / antioxidant activity / toxic substance binding / Scavenging of heme from plasma / Recycling of bile acids and salts / platelet alpha granule lumen / fatty acid binding / cellular response to starvation / Post-translational protein phosphorylation / Cytoprotection by HMOX1 / Regulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs) / pyridoxal phosphate binding / Platelet degranulation / protein-folding chaperone binding / blood microparticle / endoplasmic reticulum lumen / copper ion binding / endoplasmic reticulum / Golgi apparatus / protein-containing complex / extracellular space / DNA binding / extracellular exosome / extracellular region / identical protein binding / nucleus / cytoplasm
Similarity search - Function
Serum albumin/Alpha-fetoprotein/Afamin / ALB/AFP/VDB / Serum albumin, N-terminal / Serum albumin, conserved site / Serum albumin-like / Serum albumin family / Albumin domain signature. / Albumin domain profile. / serum albumin
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.77 Å
AuthorsSlawek J / Taube M / Rawski M / Wojciechowska D / Kozak M
Funding support Poland, 1 items
OrganizationGrant numberCountry
Polish National Science Centre2017/27/B/ST4/00485 Poland
CitationJournal: To Be Published
Title: Structural studies of human serum albumin using cryo-EM up to 0.38 nm resolution
Authors: Slawek J / Taube M / Rawski M / Wojciechowska D / Kozak M
History
DepositionAug 4, 2023-
Header (metadata) releaseAug 16, 2023-
Map releaseAug 16, 2023-
UpdateNov 20, 2024-
Current statusNov 20, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_18126.png

Downloads & links

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Map

FileDownload / File: emd_18126.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.)
0.86 Å/pix.
x 256 pix.
= 220.16 Å		0.86 Å/pix.
x 256 pix.
= 220.16 Å		0.86 Å/pix.
x 256 pix.
= 220.16 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.86 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.051
Minimum - Maximum-0.14006881 - 0.2978073
Average (Standard dev.)0.0020530508 (±0.008902039)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 220.16 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_18126_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_18126_half_map_2.map
Projections & Slices
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Slices (1/2)
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Histogram

Histogram (log scale)

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Sample components

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Entire : Monomer of human serum albumin

EntireName: Monomer of human serum albumin
Components
  • Complex: Monomer of human serum albumin
    • Protein or peptide: Serum albumin

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Supramolecule #1: Monomer of human serum albumin

SupramoleculeName: Monomer of human serum albumin / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 67 KDa

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Macromolecule #1: Serum albumin

MacromoleculeName: Serum albumin / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 66.571219 KDa
SequenceString: DAHKSEVAHR FKDLGEENFK ALVLIAFAQY LQQCPFEDHV KLVNEVTEFA KTCVADESAE NCDKSLHTLF GDKLCTVATL RETYGEMAD CCAKQEPERN ECFLQHKDDN PNLPRLVRPE VDVMCTAFHD NEETFLKKYL YEIARRHPYF YAPELLFFAK R YKAAFTEC ...String:
DAHKSEVAHR FKDLGEENFK ALVLIAFAQY LQQCPFEDHV KLVNEVTEFA KTCVADESAE NCDKSLHTLF GDKLCTVATL RETYGEMAD CCAKQEPERN ECFLQHKDDN PNLPRLVRPE VDVMCTAFHD NEETFLKKYL YEIARRHPYF YAPELLFFAK R YKAAFTEC CQAADKAACL LPKLDELRDE GKASSAKQRL KCASLQKFGE RAFKAWAVAR LSQRFPKAEF AEVSKLVTDL TK VHTECCH GDLLECADDR ADLAKYICEN QDSISSKLKE CCEKPLLEKS HCIAEVENDE MPADLPSLAA DFVESKDVCK NYA EAKDVF LGMFLYEYAR RHPDYSVVLL LRLAKTYETT LEKCCAAADP HECYAKVFDE FKPLVEEPQN LIKQNCELFE QLGE YKFQN ALLVRYTKKV PQVSTPTLVE VSRNLGKVGS KCCKHPEAKR MPCAEDYLSV VLNQLCVLHE KTPVSDRVTK CCTES LVNR RPCFSALEVD ETYVPKEFNA ETFTFHADIC TLSEKERQIK KQTALVELVK HKPKATKEQL KAVMDDFAAF VEKCCK ADD KETCFAEEGK KLVAASQAAL GL

UniProtKB: Albumin

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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: 7.4
Details: PBS buffer at pH=7.4 (137 mM NaCl, 2.7 mM KCl, 10 mM Na2HPO4, 1.8 mM KH2PO4)
VitrificationCryogen name: ETHANE / Chamber humidity: 95 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeTFS KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Digitization - Dimensions - Width: 5760 pixel / Digitization - Dimensions - Height: 4092 pixel / Number real images: 11116 / Average electron dose: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.5 µm / Nominal defocus min: 0.9 µm / Nominal magnification: 105000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 1663068
Details: from template picker with templates generated from 49615 particles picked by blob picker on 200 micrographs
Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

4g03

Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.77 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 185569
Initial angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: cryoSPARC
Final angle assignmentType: ANGULAR RECONSTITUTION / Software - Name: cryoSPARC
Final 3D classificationNumber classes: 3 / Avg.num./class: 130000 / Software - Name: cryoSPARC

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Atomic model buiding 1

Initial modelPDB ID:

4g03


Chain - Chain ID: B / Chain - Source name: PDB / Chain - Initial model type: experimental model
RefinementSpace: REAL / Protocol: RIGID BODY FIT
Output model

PDB-8q3f:
Structural studies of human serum albumin using cryo-EM up to 0.38 nm resolution

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