+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-35834 | |||||||||
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Title | cryo-EM structure of sulindac-bound hMRP4 | |||||||||
Map data | ||||||||||
Sample |
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Keywords | cryo-EM structure of sulindac-bound hMRP4 / MEMBRANE PROTEIN | |||||||||
Function / homology | Function and homology information guanine nucleotide transmembrane transporter activity / 15-hydroxyprostaglandin dehydrogenase (NAD+) activity / purine nucleotide transmembrane transporter activity / cAMP transport / ABC-type bile acid transporter activity / platelet dense granule membrane / leukotriene transport / urate transport / platelet degranulation / prostaglandin transport ...guanine nucleotide transmembrane transporter activity / 15-hydroxyprostaglandin dehydrogenase (NAD+) activity / purine nucleotide transmembrane transporter activity / cAMP transport / ABC-type bile acid transporter activity / platelet dense granule membrane / leukotriene transport / urate transport / platelet degranulation / prostaglandin transport / glutathione transmembrane transporter activity / ABC-type glutathione-S-conjugate transporter / ABC-type glutathione S-conjugate transporter activity / prostaglandin transmembrane transporter activity / urate transmembrane transporter activity / ATPase-coupled inorganic anion transmembrane transporter activity / external side of apical plasma membrane / xenobiotic transmembrane transport / export across plasma membrane / ABC-type xenobiotic transporter / Paracetamol ADME / prostaglandin secretion / ABC-type xenobiotic transporter activity / Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate / Azathioprine ADME / bile acid and bile salt transport / efflux transmembrane transporter activity / xenobiotic transmembrane transporter activity / ATPase-coupled transmembrane transporter activity / transport across blood-brain barrier / cilium assembly / ABC-type transporter activity / xenobiotic metabolic process / ABC-family proteins mediated transport / transmembrane transport / Platelet degranulation / basolateral plasma membrane / apical plasma membrane / nucleolus / Golgi apparatus / ATP hydrolysis activity / ATP binding / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 3.8 Å | |||||||||
Authors | Liu ZM / Huang Y | |||||||||
Funding support | China, 1 items
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Citation | Journal: Commun Biol / Year: 2023 Title: Structural basis for substrate and inhibitor recognition of human multidrug transporter MRP4. Authors: Ying Huang / Chenyang Xue / Liangdong Wang / Ruiqian Bu / Jianqiang Mu / Yong Wang / Zhongmin Liu / Abstract: Human multidrug resistance protein 4 (hMRP4, also known as ABCC4), with a representative topology of the MRP subfamily, translocates various substrates across the membrane and contributes to the ...Human multidrug resistance protein 4 (hMRP4, also known as ABCC4), with a representative topology of the MRP subfamily, translocates various substrates across the membrane and contributes to the development of multidrug resistance. However, the underlying transport mechanism of hMRP4 remains unclear due to a lack of high-resolution structures. Here, we use cryogenic electron microscopy (cryo-EM) to resolve its near-atomic structures in the apo inward-open and the ATP-bound outward-open states. We also capture the PGE1 substrate-bound structure and, importantly, the inhibitor-bound structure of hMRP4 in complex with sulindac, revealing that substrate and inhibitor compete for the same hydrophobic binding pocket although with different binding modes. Moreover, our cryo-EM structures, together with molecular dynamics simulations and biochemical assay, shed light on the structural basis of the substrate transport and inhibition mechanism, with implications for the development of hMRP4-targeted drugs. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_35834.map.gz | 96.8 MB | EMDB map data format | |
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Header (meta data) | emd-35834-v30.xml emd-35834.xml | 14.4 KB 14.4 KB | Display Display | EMDB header |
Images | emd_35834.png | 53.7 KB | ||
Filedesc metadata | emd-35834.cif.gz | 6.1 KB | ||
Others | emd_35834_half_map_1.map.gz emd_35834_half_map_2.map.gz | 95.3 MB 95.3 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-35834 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-35834 | HTTPS FTP |
-Validation report
Summary document | emd_35834_validation.pdf.gz | 850 KB | Display | EMDB validaton report |
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Full document | emd_35834_full_validation.pdf.gz | 849.6 KB | Display | |
Data in XML | emd_35834_validation.xml.gz | 13.3 KB | Display | |
Data in CIF | emd_35834_validation.cif.gz | 15.6 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35834 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-35834 | HTTPS FTP |
-Related structure data
Related structure data | 8iz7MC 8iz8C 8iz9C 8izaC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_35834.map.gz / Format: CCP4 / Size: 103 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
Voxel size | X=Y=Z: 0.86 Å | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_35834_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_35834_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : sulindac-bound hMRP4
Entire | Name: sulindac-bound hMRP4 |
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Components |
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-Supramolecule #1: sulindac-bound hMRP4
Supramolecule | Name: sulindac-bound hMRP4 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: ATP-binding cassette sub-family C member 4
Macromolecule | Name: ATP-binding cassette sub-family C member 4 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO EC number: Translocases; Catalysing the translocation of other compounds; Linked to the hydrolysis of a nucleoside triphosphate |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 153.171359 KDa |
Recombinant expression | Organism: Homo sapiens (human) |
Sequence | String: MLPVYQEVKP NPLQDANLCS RVFFWWLNPL FKIGHKRRLE EDDMYSVLPE DRSQHLGEEL QGFWDKEVLR AENDAQKPSL TRAIIKCYW KSYLVLGIFT LIEESAKVIQ PIFLGKIINY FENYDPMDSV ALNTAYAYAT VLTFCTLILA ILHHLYFYHV Q CAGMRLRV ...String: MLPVYQEVKP NPLQDANLCS RVFFWWLNPL FKIGHKRRLE EDDMYSVLPE DRSQHLGEEL QGFWDKEVLR AENDAQKPSL TRAIIKCYW KSYLVLGIFT LIEESAKVIQ PIFLGKIINY FENYDPMDSV ALNTAYAYAT VLTFCTLILA ILHHLYFYHV Q CAGMRLRV AMCHMIYRKA LRLSNMAMGK TTTGQIVNLL SNDVNKFDQV TVFLHFLWAG PLQAIAVTAL LWMEIGISCL AG MAVLIIL LPLQSCFGKL FSSLRSKTAT FTDARIRTMN EVITGIRIIK MYAWEKSFSN LITNLRKKEI SKILRSSCLR GMN LASFFS ASKIIVFVTF TTYVLLGSVI TASRVFVAVT LYGAVRLTVT LFFPSAIERV SEAIVSIRRI QTFLLLDEIS QRNR QLPSD GKKMVHVQDF TAFWDKASET PTLQGLSFTV RPGELLAVVG PVGAGKSSLL SAVLGELAPS HGLVSVHGRI AYVSQ QPWV FSGTLRSNIL FGKKYEKERY EKVIKACALK KDLQLLEDGD LTVIGDRGTT LSGGQKARVN LARAVYQDAD IYLLDD PLS AVDAEVSRHL FELCICQILH EKITILVTHQ LQYLKAASQI LILKDGKMVQ KGTYTEFLKS GIDFGSLLKK DNEESEQ PP VPGTPTLRNR TFSESSVWSQ QSSRPSLKDG ALESQDTENV PVTLSEENRS EGKVGFQAYK NYFRAGAHWI VFIFLILL N TAAQVAYVLQ DWWLSYWANK QSMLNVTVNG GGNVTEKLDL NWYLGIYSGL TVATVLFGIA RSLLVFYVLV NSSQTLHNK MFESILKAPV LFFDRNPIGR ILNRFSKDIG HLDDLLPLTF LDFIQTLLQV VGVVSVAVAV IPWIAIPLVP LGIIFIFLRR YFLETSRDV KRLESTTRSP VFSHLSSSLQ GLWTIRAYKA EERCQELFDA HQDLHSEAWF LFLTTSRWFA VRLDAICAMF V IIVAFGSL ILAKTLDAGQ VGLALSYALT LMGMFQWCVR QSAEVENMMI SVERVIEYTD LEKEAPWEYQ KRPPPAWPHE GV IIFDNVN FMYSPGGPLV LKHLTALIKS QEKVGIVGRT GAGKSSLISA LFRLSEPEGK IWIDKILTTE IGLHDLRKKM SII PQEPVL FTGTMRKNLD PFNEHTDEEL WNALQEVQLK ETIEDLPGKM DTELAESGSN FSVGQRQLVC LARAILRKNQ ILII DEATA NVDPRTDELI QKKIREKFAH CTVLTIAHRL NTIIDSDKIM VLDSGRLKEY DEPYVLLQNK ESLFYKMVQQ LGKAE AAAL TETAKQVYFK RNYPHIGHTD HMVTNTSNGQ PSTLTIFETA LLEGGGSGGG SDYKDHDGDY KDHDIDYKDD DDK UniProtKB: ATP-binding cassette sub-family C member 4 |
-Macromolecule #2: [(1Z)-5-fluoro-2-methyl-1-{4-[methylsulfinyl]benzylidene}-1H-inde...
Macromolecule | Name: [(1Z)-5-fluoro-2-methyl-1-{4-[methylsulfinyl]benzylidene}-1H-inden-3-yl]acetic acid type: ligand / ID: 2 / Number of copies: 1 / Formula: SUZ |
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Molecular weight | Theoretical: 356.411 Da |
Chemical component information | ChemComp-SUZ: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: OTHER |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 3.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 151694 |
Initial angle assignment | Type: MAXIMUM LIKELIHOOD |
Final angle assignment | Type: MAXIMUM LIKELIHOOD |