+
Open data
-
Basic information
Entry | ![]() | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Title | Cryo-EM structure of human OATP1B1 in complex with DCF | |||||||||
![]() | ||||||||||
![]() |
| |||||||||
![]() | transporter / OATP1B1 / organic anion transporting peptide / MEMBRANE PROTEIN | |||||||||
Function / homology | ![]() Defective SLCO1B1 causes hyperbilirubinemia, Rotor type (HBLRR) / Transport of organic anions / sodium-independent organic anion transmembrane transporter activity / sodium-independent organic anion transport / thyroid hormone transmembrane transporter activity / bile acid transmembrane transporter activity / prostaglandin transmembrane transporter activity / organic anion transport / Atorvastatin ADME / organic anion transmembrane transporter activity ...Defective SLCO1B1 causes hyperbilirubinemia, Rotor type (HBLRR) / Transport of organic anions / sodium-independent organic anion transmembrane transporter activity / sodium-independent organic anion transport / thyroid hormone transmembrane transporter activity / bile acid transmembrane transporter activity / prostaglandin transmembrane transporter activity / organic anion transport / Atorvastatin ADME / organic anion transmembrane transporter activity / heme catabolic process / bile acid and bile salt transport / Heme degradation / monoatomic ion transport / Recycling of bile acids and salts / xenobiotic metabolic process / basal plasma membrane / basolateral plasma membrane / membrane / plasma membrane Similarity search - Function | |||||||||
Biological species | ![]() | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.92 Å | |||||||||
![]() | Shan Z / Yang X / Zhang Y | |||||||||
Funding support | ![]()
| |||||||||
![]() | ![]() Title: Cryo-EM structures of human organic anion transporting polypeptide OATP1B1. Authors: Ziyang Shan / Xuemei Yang / Huihui Liu / Yafei Yuan / Yuan Xiao / Jing Nan / Wei Zhang / Wenqi Song / Jufang Wang / Feiwen Wei / Yanqing Zhang / ![]() Abstract: Members of the solute carrier organic anion transporting polypeptide (OATPs) family function as transporters for a large variety of amphipathic organic anions including endogenous metabolites and ...Members of the solute carrier organic anion transporting polypeptide (OATPs) family function as transporters for a large variety of amphipathic organic anions including endogenous metabolites and clinical drugs, such as bile salts, steroids, thyroid hormones, statins, antibiotics, antivirals, and anticancer drugs. OATP1B1 plays a vital role in transporting such substances into the liver for hepatic clearance. FDA and EMA recommend conducting in vitro testing of drug-drug interactions (DDIs) involving OATP1B1. However, the structure and working mechanism of OATPs still remains elusive. In this study, we determined cryo-EM structures of human OATP1B1 bound with representative endogenous metabolites (bilirubin and estrone-3-sulfate), a clinical drug (simeprevir), and a fluorescent indicator (2',7'-dichlorofluorescein), in both outward- and inward-open states. These structures reveal major and minor substrate binding pockets and conformational changes during transport. In combination with mutagenesis studies and molecular dynamics simulations, our work comprehensively elucidates the transport mechanism of OATP1B1 and provides the structural basis for DDI predictions involving OATP1B1, which will greatly promote our understanding of OATPs. | |||||||||
History |
|
-
Structure visualization
Supplemental images |
---|
-
Downloads & links
-EMDB archive
Map data | ![]() | 59.7 MB | ![]() | |
---|---|---|---|---|
Header (meta data) | ![]() ![]() | 15.8 KB 15.8 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 8.4 KB | Display | ![]() |
Images | ![]() | 85.1 KB | ||
Masks | ![]() | 64 MB | ![]() | |
Filedesc metadata | ![]() | 6.2 KB | ||
Others | ![]() ![]() | 59.4 MB 59.4 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Validation report
Summary document | ![]() | 839.5 KB | Display | ![]() |
---|---|---|---|---|
Full document | ![]() | 839.1 KB | Display | |
Data in XML | ![]() | 16.7 KB | Display | |
Data in CIF | ![]() | 21.4 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8k6lMC ![]() 8hnbC ![]() 8hncC ![]() 8hndC ![]() 8hnhC M: atomic model generated by this map C: citing same article ( |
---|---|
Similar structure data | Similarity search - Function & homology ![]() |
-
Links
EMDB pages | ![]() ![]() |
---|---|
Related items in Molecule of the Month |
-
Map
File | ![]() | ||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Voxel size | X=Y=Z: 0.932 Å | ||||||||||||||||||||
Density |
| ||||||||||||||||||||
Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
|
-Supplemental data
-Mask #1
File | ![]() | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Half map: #2
File | emd_36922_half_map_1.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-Half map: #1
File | emd_36922_half_map_2.map | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Projections & Slices |
| ||||||||||||
Density Histograms |
-
Sample components
-Entire : OATP1B1
Entire | Name: OATP1B1 |
---|---|
Components |
|
-Supramolecule #1: OATP1B1
Supramolecule | Name: OATP1B1 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1 |
---|---|
Source (natural) | Organism: ![]() |
-Macromolecule #1: Solute carrier organic anion transporter family member 1B1
Macromolecule | Name: Solute carrier organic anion transporter family member 1B1 type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
---|---|
Source (natural) | Organism: ![]() |
Molecular weight | Theoretical: 80.330312 KDa |
Recombinant expression | Organism: ![]() |
Sequence | String: MDQNQHLNKT AEAQPSENKK TRYCNGLKMF LAALSLSFIA KTLGAIIMKS SIIHIERRFE ISSSLVGFID GSFEIGNLLV IVFVSYFGS KLHRPKLIGI GCFIMGIGGV LTALPHFFMG YYRYSKETNI NSSENSTSTL STCLINQILS LNRASPEIVG K GCLKESGS ...String: MDQNQHLNKT AEAQPSENKK TRYCNGLKMF LAALSLSFIA KTLGAIIMKS SIIHIERRFE ISSSLVGFID GSFEIGNLLV IVFVSYFGS KLHRPKLIGI GCFIMGIGGV LTALPHFFMG YYRYSKETNI NSSENSTSTL STCLINQILS LNRASPEIVG K GCLKESGS YMWIYVFMGN MLRGIGETPI VPLGLSYIDD FAKEGHSSLY LGILNAIAMI GPIIGFTLGS LFSKMYVDIG YV DLSTIRI TPTDSRWVGA WWLNFLVSGL FSIISSIPFF FLPQTPNKPQ KERKASLSLH VLETNDEKDQ TANLTNQGKN ITK NVTGFF QSFKSILTNP LYVMFVLLTL LQVSSYIGAF TYVFKYVEQQ YGQPSSKANI LLGVITIPIF ASGMFLGGYI IKKF KLNTV GIAKFSCFTA VMSLSFYLLY FFILCENKSV AGLTMTYDGN NPVTSHRDVP LSYCNSDCNC DESQWEPVCG NNGIT YISP CLAGCKSSSG NKKPIVFYNC SCLEVTGLQN RNYSAHLGEC PRDDACTRKF YFFVAIQVLN LFFSALGGTS HVMLIV KIV QPELKSLALG FHSMVIRALG GILAPIYFGA LIDTTCIKWS TNNCGTRGSC RTYNSTSFSR VYLGLSSMLR VSSLVLY II LIYAMKKKYQ EKDINASENG SVMDEANLES LNKNKHFVPS AGADSETHCL EGSDEVDAGS HHHHHHHHHH GSVEDYKD D DDK UniProtKB: Solute carrier organic anion transporter family member 1B1 |
-Macromolecule #3: 2',7'-bis(chloranyl)-3',6'-bis(oxidanyl)spiro[2-benzofuran-3,9'-x...
Macromolecule | Name: 2',7'-bis(chloranyl)-3',6'-bis(oxidanyl)spiro[2-benzofuran-3,9'-xanthene]-1-one type: ligand / ID: 3 / Details: 2',7'-dichlorofluorescein / Number of copies: 1 / Formula: IOQ |
---|---|
Molecular weight | Theoretical: 401.196 Da |
Chemical component information | ![]() ChemComp-IOQ: |
-Macromolecule #4: 2-acetamido-2-deoxy-beta-D-glucopyranose
Macromolecule | Name: 2-acetamido-2-deoxy-beta-D-glucopyranose / type: ligand / ID: 4 / Number of copies: 1 / Formula: NAG |
---|---|
Molecular weight | Theoretical: 221.208 Da |
Chemical component information | ![]() ChemComp-NAG: |
-Experimental details
-Structure determination
Method | cryo EM |
---|---|
![]() | single particle reconstruction |
Aggregation state | particle |
-
Sample preparation
Concentration | 9 mg/mL |
---|---|
Buffer | pH: 8 |
Grid | Material: GOLD / Mesh: 300 / Pretreatment - Type: GLOW DISCHARGE / Pretreatment - Time: 30 sec. |
Vitrification | Cryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 281 K / Instrument: FEI VITROBOT MARK IV |
-
Electron microscopy
Microscope | FEI TITAN KRIOS |
---|---|
Specialist optics | Energy filter - Name: TFS Selectris X / Energy filter - Slit width: 20 eV |
Image recording | Film or detector model: TFS FALCON 4i (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 46.1 e/Å2 |
Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 1.6 µm / Nominal defocus min: 0.9 µm / Nominal magnification: 130000 |
Sample stage | Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |