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- EMDB-18210: ABCG2 in complex with MZ29 and 5D3 Fab -

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Basic information

Entry
Database: EMDB / ID: EMD-18210
TitleABCG2 in complex with MZ29 and 5D3 Fab
Map dataPostprocessed map
Sample
  • Complex: ABCG2 in complex with MZ29 and 5D3 Fab
    • Protein or peptide: 5D3(Fab) heavy chain variable domain
    • Protein or peptide: 5D3(Fab) light chain variable domain
    • Protein or peptide: ATP-binding cassette sub-family G member 2
  • Ligand: CHOLESTEROL
  • Ligand: ~{tert}-butyl 3-[(2~{S},5~{S},8~{S})-14-cyclopentyloxy-2-(2-methylpropyl)-4,7-bis(oxidanylidene)-3,6,17-triazatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate
  • Ligand: water
KeywordsABC transporter / multidrug resistance / TRANSPORT PROTEIN
Function / homology
Function and homology information


biotin transmembrane transporter activity / biotin transport / riboflavin transport / riboflavin transmembrane transporter activity / sphingolipid transporter activity / renal urate salt excretion / urate metabolic process / Abacavir transmembrane transport / urate transmembrane transporter activity / sphingolipid biosynthetic process ...biotin transmembrane transporter activity / biotin transport / riboflavin transport / riboflavin transmembrane transporter activity / sphingolipid transporter activity / renal urate salt excretion / urate metabolic process / Abacavir transmembrane transport / urate transmembrane transporter activity / sphingolipid biosynthetic process / Sphingolipid de novo biosynthesis / organic anion transport / external side of apical plasma membrane / organic anion transmembrane transporter activity / xenobiotic transport across blood-brain barrier / transepithelial transport / Ciprofloxacin ADME / export across plasma membrane / Paracetamol ADME / NFE2L2 regulating MDR associated enzymes / ABC-type xenobiotic transporter / Differentiation of Keratinocytes in Interfollicular Epidermis in Mammalian Skin / Heme biosynthesis / cellular detoxification / ABC-type xenobiotic transporter activity / Heme degradation / efflux transmembrane transporter activity / xenobiotic transmembrane transporter activity / ATPase-coupled transmembrane transporter activity / transport across blood-brain barrier / brush border membrane / Iron uptake and transport / mitochondrial membrane / transmembrane transport / apical plasma membrane / membrane raft / protein homodimerization activity / ATP hydrolysis activity / nucleoplasm / ATP binding / identical protein binding / plasma membrane
Similarity search - Function
ABC transporter family G domain / ABC-2 type transporter / : / ABC-2 type transporter / ABC-2 type transporter / ABC transporter / ABC transporter-like, ATP-binding domain / ATP-binding cassette, ABC transporter-type domain profile. / ATPases associated with a variety of cellular activities / AAA+ ATPase domain / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Broad substrate specificity ATP-binding cassette transporter ABCG2
Similarity search - Component
Biological speciesHomo sapiens (human) / Mus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.56 Å
AuthorsKowal J / Yu Q / Ni D / Stahlberg H / Tajkhorshid E / Altmann KH / Locher KP / Manolaridis I / Jackson SM / Taylor NMI / Zechner M
Funding support Switzerland, 1 items
OrganizationGrant numberCountry
Swiss National Science FoundationTransCure Switzerland
CitationJournal: Nat Struct Mol Biol / Year: 2018
Title: Structural basis of small-molecule inhibition of human multidrug transporter ABCG2.
Authors: Scott M Jackson / Ioannis Manolaridis / Julia Kowal / Melanie Zechner / Nicholas M I Taylor / Manuel Bause / Stefanie Bauer / Ruben Bartholomaeus / Guenther Bernhardt / Burkhard Koenig / ...Authors: Scott M Jackson / Ioannis Manolaridis / Julia Kowal / Melanie Zechner / Nicholas M I Taylor / Manuel Bause / Stefanie Bauer / Ruben Bartholomaeus / Guenther Bernhardt / Burkhard Koenig / Armin Buschauer / Henning Stahlberg / Karl-Heinz Altmann / Kaspar P Locher /
Abstract: ABCG2 is an ATP-binding cassette (ABC) transporter that protects tissues against xenobiotics, affects the pharmacokinetics of drugs and contributes to multidrug resistance. Although many inhibitors ...ABCG2 is an ATP-binding cassette (ABC) transporter that protects tissues against xenobiotics, affects the pharmacokinetics of drugs and contributes to multidrug resistance. Although many inhibitors and modulators of ABCG2 have been developed, understanding their structure-activity relationship requires high-resolution structural insight. Here, we present cryo-EM structures of human ABCG2 bound to synthetic derivatives of the fumitremorgin C-related inhibitor Ko143 or the multidrug resistance modulator tariquidar. Both compounds are bound to the central, inward-facing cavity of ABCG2, blocking access for substrates and preventing conformational changes required for ATP hydrolysis. The high resolutions allowed for de novo building of the entire transporter and also revealed tightly bound phospholipids and cholesterol interacting with the lipid-exposed surface of the transmembrane domains (TMDs). Extensive chemical modifications of the Ko143 scaffold combined with in vitro functional analyses revealed the details of ABCG2 interactions with this compound family and provide a basis for the design of novel inhibitors and modulators.
History
DepositionAug 16, 2023-
Header (metadata) releaseNov 6, 2024-
Map releaseNov 6, 2024-
UpdateNov 27, 2024-
Current statusNov 27, 2024Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_18210.png

Downloads & links

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Map

FileDownload / File: emd_18210.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationPostprocessed map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.66 Å/pix.
x 384 pix.
= 253.44 Å		0.66 Å/pix.
x 384 pix.
= 253.44 Å		0.66 Å/pix.
x 384 pix.
= 253.44 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.66 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.02
Minimum - Maximum-0.074611746 - 0.13249852
Average (Standard dev.)0.00015634843 (±0.0028374281)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 253.44 Å
α=β=γ: 90.0 °

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Supplemental data

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Additional map: Local resolution filtered map

Fileemd_18210_additional_1.map
AnnotationLocal resolution filtered map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half-map 2

Fileemd_18210_half_map_1.map
AnnotationHalf-map 2
Projections & Slices
AxesZYX

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Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half-map 1

Fileemd_18210_half_map_2.map
AnnotationHalf-map 1
Projections & Slices
AxesZYX

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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 : ABCG2 in complex with MZ29 and 5D3 Fab

EntireName: ABCG2 in complex with MZ29 and 5D3 Fab
Components
  • Complex: ABCG2 in complex with MZ29 and 5D3 Fab
    • Protein or peptide: 5D3(Fab) heavy chain variable domain
    • Protein or peptide: 5D3(Fab) light chain variable domain
    • Protein or peptide: ATP-binding cassette sub-family G member 2
  • Ligand: CHOLESTEROL
  • Ligand: ~{tert}-butyl 3-[(2~{S},5~{S},8~{S})-14-cyclopentyloxy-2-(2-methylpropyl)-4,7-bis(oxidanylidene)-3,6,17-triazatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate
  • Ligand: water

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Supramolecule #1: ABCG2 in complex with MZ29 and 5D3 Fab

SupramoleculeName: ABCG2 in complex with MZ29 and 5D3 Fab / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3
Details: Nanodisc-reconstituted 5D3-Fab-ABCG2 was incubated with MZ29
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 244 KDa

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Macromolecule #1: 5D3(Fab) heavy chain variable domain

MacromoleculeName: 5D3(Fab) heavy chain variable domain / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 23.843633 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: QVQLQESGPG LVKPSQSLSL TCTVTGFSIT SDYAWNWIRQ FPGKKLEWMG YINFDGGTTY NPSLRGRISI TRDTSKNQFF LQLRSVTPE DTATYYCATF YGAKGTLDYW GQGTSVTVSS AKTTPPSVYP LAPVCGDTSG SSVTLGCLVK GYFPEPVTLT W NSGSLSSG ...String:
QVQLQESGPG LVKPSQSLSL TCTVTGFSIT SDYAWNWIRQ FPGKKLEWMG YINFDGGTTY NPSLRGRISI TRDTSKNQFF LQLRSVTPE DTATYYCATF YGAKGTLDYW GQGTSVTVSS AKTTPPSVYP LAPVCGDTSG SSVTLGCLVK GYFPEPVTLT W NSGSLSSG VHTFPAVLQS DLYTLSSSVT VTSSTWPSQS ITCNVAHPAS STKVDKKIEP RGP

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Macromolecule #2: 5D3(Fab) light chain variable domain

MacromoleculeName: 5D3(Fab) light chain variable domain / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 23.594016 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: DIVLTQSPSS FSVSLGDRVT ISCKASGYIL NRLAWYQQKP GNAPRLLISG ATSLETGFPS RFSGTGSGKD YTLSISSLQT EDVGTYYCQ QYWSTPWTFG GGTKLEIRRA DAAPTVSIFP PSSEQLTSGG ASVVCFLNNF YPKDINVKWK IDGSERQNGV L NSWTDQDS ...String:
DIVLTQSPSS FSVSLGDRVT ISCKASGYIL NRLAWYQQKP GNAPRLLISG ATSLETGFPS RFSGTGSGKD YTLSISSLQT EDVGTYYCQ QYWSTPWTFG GGTKLEIRRA DAAPTVSIFP PSSEQLTSGG ASVVCFLNNF YPKDINVKWK IDGSERQNGV L NSWTDQDS KDSTYSMSST LTLTKDEYER HNSYTCEATH KTSTSPIVKS FNRNEC

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Macromolecule #3: ATP-binding cassette sub-family G member 2

MacromoleculeName: ATP-binding cassette sub-family G member 2 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO / EC number: ABC-type xenobiotic transporter
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 72.385852 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MSSSNVEVFI PVSQGNTNGF PATASNDLKA FTEGAVLSFH NICYRVKLKS GFLPCRKPVE KEILSNINGI MKPGLNAILG PTGGGKSSL LDVLAARKDP SGLSGDVLIN GAPRPANFKC NSGYVVQDDV VMGTLTVREN LQFSAALRLA TTMTNHEKNE R INRVIQEL ...String:
MSSSNVEVFI PVSQGNTNGF PATASNDLKA FTEGAVLSFH NICYRVKLKS GFLPCRKPVE KEILSNINGI MKPGLNAILG PTGGGKSSL LDVLAARKDP SGLSGDVLIN GAPRPANFKC NSGYVVQDDV VMGTLTVREN LQFSAALRLA TTMTNHEKNE R INRVIQEL GLDKVADSKV GTQFIRGVSG GERKRTSIGM ELITDPSILF LDEPTTGLDS STANAVLLLL KRMSKQGRTI IF SIHQPRY SIFKLFDSLT LLASGRLMFH GPAQEALGYF ESAGYHCEAY NNPADFFLDI INGDSTAVAL NREEDFKATE IIE PSKQDK PLIEKLAEIY VNSSFYKETK AELHQLSGGE KKKKITVFKE ISYTTSFCHQ LRWVSKRSFK NLLGNPQASI AQII VTVVL GLVIGAIYFG LKNDSTGIQN RAGVLFFLTT NQCFSSVSAV ELFVVEKKLF IHEYISGYYR VSSYFLGKLL SDLLP MRML PSIIFTCIVY FMLGLKPKAD AFFVMMFTLM MVAYSASSMA LAIAAGQSVV SVATLLMTIC FVFMMIFSGL LVNLTT IAS WLSWLQYFSI PRYGFTALQH NEFLGQNFCP GLNATGNNPC NYATCTGEEY LVKQGIDLSP WGLWKNHVAL ACMIVIF LT IAYLKLLFLK KYS

UniProtKB: Broad substrate specificity ATP-binding cassette transporter ABCG2

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Macromolecule #5: CHOLESTEROL

MacromoleculeName: CHOLESTEROL / type: ligand / ID: 5 / Number of copies: 10 / Formula: CLR
Molecular weightTheoretical: 386.654 Da
Chemical component information

ChemComp-CLR:
CHOLESTEROL

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Macromolecule #6: ~{tert}-butyl 3-[(2~{S},5~{S},8~{S})-14-cyclopentyloxy-2-(2-methy...

MacromoleculeName: ~{tert}-butyl 3-[(2~{S},5~{S},8~{S})-14-cyclopentyloxy-2-(2-methylpropyl)-4,7-bis(oxidanylidene)-3,6,17-triazatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate
type: ligand / ID: 6 / Number of copies: 2 / Formula: BWQ
Molecular weightTheoretical: 523.664 Da
Chemical component information

ChemComp-BWQ:
~{tert}-butyl 3-[(2~{S},5~{S},8~{S})-14-cyclopentyloxy-2-(2-methylpropyl)-4,7-bis(oxidanylidene)-3,6,17-triazatetracyclo[8.7.0.0^{3,8}.0^{11,16}]heptadeca-1(10),11,13,15-tetraen-5-yl]propanoate

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Macromolecule #7: water

MacromoleculeName: water / type: ligand / ID: 7 / Number of copies: 48 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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 / Component - Concentration: 0.04 M / Component - Name: Hepes
GridModel: Quantifoil R1.2/1.3 / Material: COPPER / Mesh: 400 / Support film - Material: CARBON / Support film - topology: HOLEY ARRAY / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE-PROPANE / Chamber humidity: 100 % / Chamber temperature: 277 K / Instrument: FEI VITROBOT MARK IV
DetailsThe sample was mono-disperse.

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: SUPER-RESOLUTION / Average electron dose: 99.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.2 µm / Nominal defocus min: 0.8 µm / Nominal magnification: 130000
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

Startup modelType of model: EMDB MAP
EMDB ID:

3953

Final reconstructionApplied symmetry - Point group: C2 (2 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 2.56 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.1) / Number images used: 205986
Initial angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1)
Final angle assignmentType: MAXIMUM LIKELIHOOD / Software - Name: RELION (ver. 3.1)
Final 3D classificationNumber classes: 1 / Software - Name: RELION (ver. 3.1)
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

6eti


Chain - Source name: PDB / Chain - Initial model type: experimental model
RefinementOverall B value: 50
Output model

PDB-8q7b:
ABCG2 in complex with MZ29 and 5D3 Fab

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