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- EMDB-41009: Cryo-EM Analysis of AE1 Structure in 100 mM NaCl Buffer: Form1 -

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Basic information

Entry
Database: EMDB / ID: EMD-41009
TitleCryo-EM Analysis of AE1 Structure in 100 mM NaCl Buffer: Form1
Map data
Sample
  • Complex: H6PD
    • Protein or peptide: Band 3 anion transport protein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate
  • Ligand: DIUNDECYL PHOSPHATIDYL CHOLINE
  • Ligand: CHLORIDE IONChloride
KeywordsBand 3 anion transport protein / anion exchanger 1 (AE1) / band 3 or solute carrier family 4 member 1 (SLC4A1) / TRANSLOCASE
Function / homology
Function and homology information


pH elevation / Defective SLC4A1 causes hereditary spherocytosis type 4 (HSP4), distal renal tubular acidosis (dRTA) and dRTA with hemolytic anemia (dRTA-HA) / negative regulation of urine volume / Bicarbonate transporters / intracellular monoatomic ion homeostasis / ankyrin-1 complex / plasma membrane phospholipid scrambling / monoatomic anion transmembrane transporter activity / chloride:bicarbonate antiporter activity / solute:inorganic anion antiporter activity ...pH elevation / Defective SLC4A1 causes hereditary spherocytosis type 4 (HSP4), distal renal tubular acidosis (dRTA) and dRTA with hemolytic anemia (dRTA-HA) / negative regulation of urine volume / Bicarbonate transporters / intracellular monoatomic ion homeostasis / ankyrin-1 complex / plasma membrane phospholipid scrambling / monoatomic anion transmembrane transporter activity / chloride:bicarbonate antiporter activity / solute:inorganic anion antiporter activity / bicarbonate transport / bicarbonate transmembrane transporter activity / monoatomic anion transport / chloride transport / chloride transmembrane transporter activity / ankyrin binding / negative regulation of glycolytic process through fructose-6-phosphate / hemoglobin binding / cortical cytoskeleton / erythrocyte development / protein-membrane adaptor activity / chloride transmembrane transport / protein localization to plasma membrane / regulation of intracellular pH / Erythrocytes take up oxygen and release carbon dioxide / Erythrocytes take up carbon dioxide and release oxygen / transmembrane transport / cytoplasmic side of plasma membrane / Z disc / blood coagulation / basolateral plasma membrane / blood microparticle / protein homodimerization activity / extracellular exosome / membrane / plasma membrane
Similarity search - Function
Anion exchange protein 1 / Anion exchange protein / Anion exchange, conserved site / Anion exchangers family signature 1. / Anion exchangers family signature 2. / Band 3 cytoplasmic domain / Band 3 cytoplasmic domain / Bicarbonate transporter, eukaryotic / Bicarbonate transporter-like, transmembrane domain / HCO3- transporter integral membrane domain / Phosphotransferase/anion transporter
Similarity search - Domain/homology
Band 3 anion transport protein
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.99 Å
AuthorsSu CC / Lyu M
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID) United States
CitationJournal: To Be Published
Title: Cryo-EM structure of the band 3 anion transport protein
Authors: Su C-C
History
DepositionJun 7, 2023-
Header (metadata) releaseMay 22, 2024-
Map releaseMay 22, 2024-
UpdateMay 22, 2024-
Current statusMay 22, 2024Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_41009.png

Downloads & links

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Map

FileDownload / File: emd_41009.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.08 Å
Density
Contour LevelBy AUTHOR: 0.4
Minimum - Maximum-1.890448 - 3.0331337
Average (Standard dev.)-0.0008507635 (±0.07609986)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions300300300
Spacing300300300
CellA=B=C: 324.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_41009_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_41009_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_41009_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 : H6PD

EntireName: H6PD
Components
  • Complex: H6PD
    • Protein or peptide: Band 3 anion transport protein
  • Ligand: 2-acetamido-2-deoxy-beta-D-glucopyranose
  • Ligand: [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate
  • Ligand: DIUNDECYL PHOSPHATIDYL CHOLINE
  • Ligand: CHLORIDE IONChloride

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Supramolecule #1: H6PD

SupramoleculeName: H6PD / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Band 3 anion transport protein

MacromoleculeName: Band 3 anion transport protein / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 101.883859 KDa
SequenceString: MEELQDDYED MMEENLEQEE YEDPDIPESQ MEEPAAHDTE ATATDYHTTS HPGTHKVYVE LQELVMDEKN QELRWMEAAR WVQLEENLG ENGAWGRPHL SHLTFWSLLE LRRVFTKGTV LLDLQETSLA GVANQLLDRF IFEDQIRPQD REELLRALLL K HSHAGELE ...String:
MEELQDDYED MMEENLEQEE YEDPDIPESQ MEEPAAHDTE ATATDYHTTS HPGTHKVYVE LQELVMDEKN QELRWMEAAR WVQLEENLG ENGAWGRPHL SHLTFWSLLE LRRVFTKGTV LLDLQETSLA GVANQLLDRF IFEDQIRPQD REELLRALLL K HSHAGELE ALGGVKPAVL TRSGDPSQPL LPQHSSLETQ LFCEQGDGGT EGHSPSGILE KIPPDSEATL VLVGRADFLE QP VLGFVRL QEAAELEAVE LPVPIRFLFV LLGPEAPHID YTQLGRAAAT LMSERVFRID AYMAQSRGEL LHSLEGFLDC SLV LPPTDA PSEQALLSLV PVQRELLRRR YQSSPAKPDS SFYKGLDLNG GPDDPLQQTG QLFGGLVRDI RRRYPYYLSD ITDA FSPQV LAAVIFIYFA ALSPAITFGG LLGEKTRNQM GVSELLISTA VQGILFALLG AQPLLVVGFS GPLLVFEEAF FSFCE TNGL EYIVGRVWIG FWLILLVVLV VAFEGSFLVR FISRYTQEIF SFLISLIFIY ETFSKLIKIF QDHPLQKTYN YNVLMV PKP QGPLPNTALL SLVLMAGTFF FAMMLRKFKN SSYFPGKLRR VIGDFGVPIS ILIMVLVDFF IQDTYTQKLS VPDGFKV SN SSARGWVIHP LGLRSEFPIW MMFASALPAL LVFILIFLES QITTLIVSKP ERKMVKGSGF HLDLLLVVGM GGVAALFG M PWLSATTVRS VTHANALTVM GKASTPGAAA QIQEVKEQRI SGLLVAVLVG LSILMEPILS RIPLAVLFGI FLYMGVTSL SGIQLFDRIL LLFKPPKYHP DVPYVKRVKT WRMHLFTGIQ IICLAVLWVV KSTPASLALP FVLILTVPLR RVLLPLIFRN VELQCLDAD DAKATFDEEE GRDEYDEVAM PV

UniProtKB: Band 3 anion transport protein

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Macromolecule #2: 2-acetamido-2-deoxy-beta-D-glucopyranose

MacromoleculeName: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 2 / Number of copies: 2 / Formula: NAG
Molecular weightTheoretical: 221.208 Da
Chemical component information

ChemComp-NAG:
2-acetamido-2-deoxy-beta-D-glucopyranose / N-Acetylglucosamine

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Macromolecule #3: [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(o...

MacromoleculeName: [(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate
type: ligand / ID: 3 / Number of copies: 2 / Formula: PIO
Molecular weightTheoretical: 746.566 Da
Chemical component information

ChemComp-PIO:
[(2R)-2-octanoyloxy-3-[oxidanyl-[(1R,2R,3S,4R,5R,6S)-2,3,6-tris(oxidanyl)-4,5-diphosphonooxy-cyclohexyl]oxy-phosphoryl]oxy-propyl] octanoate

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Macromolecule #4: DIUNDECYL PHOSPHATIDYL CHOLINE

MacromoleculeName: DIUNDECYL PHOSPHATIDYL CHOLINE / type: ligand / ID: 4 / Number of copies: 2 / Formula: PLC
Molecular weightTheoretical: 622.834 Da
Chemical component information

ChemComp-PLC:
DIUNDECYL PHOSPHATIDYL CHOLINE / phospholipid*YM

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Macromolecule #5: CHLORIDE ION

MacromoleculeName: CHLORIDE ION / type: ligand / ID: 5 / Number of copies: 1 / Formula: CL
Molecular weightTheoretical: 35.453 Da

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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

Concentration0.5 mg/mL
BufferpH: 7.5
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
DetailsThis is from a heterogeneous and impure protein sample.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELDBright-field microscopy / Nominal defocus max: 2.5 µm / Nominal defocus min: 1.0 µm
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 29.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: INSILICO MODEL / In silico model: ab initio reconstruction by cryosparc
Initial angle assignmentType: ANGULAR RECONSTITUTION
Final angle assignmentType: ANGULAR RECONSTITUTION
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.99 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 98977
FSC plot (resolution estimation)

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Atomic model buiding 1

RefinementProtocol: AB INITIO MODEL
Output model

PDB-8t3r:
Cryo-EM Analysis of AE1 Structure in 100 mM NaCl Buffer: Form1

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