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- PDB-8wbz: Cryo-EM structure of ACE2-B0AT1 complex with JX225 -

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Basic information

Entry
Database: PDB / ID: 8wbz
TitleCryo-EM structure of ACE2-B0AT1 complex with JX225
Components
  • Angiotensin-converting enzyme 2
  • Sodium-dependent neutral amino acid transporter B(0)AT1
KeywordsPROTEIN TRANSPORT/HYDROLASE / Transporter / complex / Inhibitors / PROTEIN TRANSPORT / PROTEIN TRANSPORT-HYDROLASE complex
Function / homology
Function and homology information


Defective SLC6A19 causes Hartnup disorder (HND) / Defective SLC6A19 causes Hartnup disorder (HND) / neutral amino acid transport / amino acid transmembrane transporter activity / Amino acid transport across the plasma membrane / neutral L-amino acid transmembrane transporter activity / symporter activity / Na+/Cl- dependent neurotransmitter transporters / amino acid transport / positive regulation of amino acid transport ...Defective SLC6A19 causes Hartnup disorder (HND) / Defective SLC6A19 causes Hartnup disorder (HND) / neutral amino acid transport / amino acid transmembrane transporter activity / Amino acid transport across the plasma membrane / neutral L-amino acid transmembrane transporter activity / symporter activity / Na+/Cl- dependent neurotransmitter transporters / amino acid transport / positive regulation of amino acid transport / angiotensin-converting enzyme 2 / positive regulation of L-proline import across plasma membrane / Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases / angiotensin-mediated drinking behavior / regulation of systemic arterial blood pressure by renin-angiotensin / positive regulation of gap junction assembly / tryptophan transport / regulation of cardiac conduction / regulation of vasoconstriction / peptidyl-dipeptidase activity / sodium ion transmembrane transport / maternal process involved in female pregnancy / angiotensin maturation / Metabolism of Angiotensinogen to Angiotensins / metallocarboxypeptidase activity / carboxypeptidase activity / negative regulation of signaling receptor activity / Attachment and Entry / positive regulation of cardiac muscle contraction / regulation of cytokine production / viral life cycle / blood vessel diameter maintenance / response to nutrient / brush border membrane / negative regulation of smooth muscle cell proliferation / regulation of transmembrane transporter activity / cilium / negative regulation of ERK1 and ERK2 cascade / metallopeptidase activity / positive regulation of reactive oxygen species metabolic process / endocytic vesicle membrane / regulation of cell population proliferation / virus receptor activity / regulation of inflammatory response / endopeptidase activity / Potential therapeutics for SARS / Induction of Cell-Cell Fusion / entry receptor-mediated virion attachment to host cell / receptor-mediated endocytosis of virus by host cell / membrane fusion / Attachment and Entry / receptor-mediated virion attachment to host cell / symbiont entry into host cell / apical plasma membrane / membrane raft / endoplasmic reticulum lumen / cell surface / extracellular space / extracellular exosome / zinc ion binding / extracellular region / identical protein binding / membrane / plasma membrane
Similarity search - Function
Neutral amino acid SLC6 transporter / Sodium:neurotransmitter symporter family signature 1. / Sodium:neurotransmitter symporter / Sodium:neurotransmitter symporter superfamily / Sodium:neurotransmitter symporter family / Sodium:neurotransmitter symporter family profile. / Collectrin-like domain profile. / Collectrin domain / Renal amino acid transporter / Peptidase family M2 domain profile. ...Neutral amino acid SLC6 transporter / Sodium:neurotransmitter symporter family signature 1. / Sodium:neurotransmitter symporter / Sodium:neurotransmitter symporter superfamily / Sodium:neurotransmitter symporter family / Sodium:neurotransmitter symporter family profile. / Collectrin-like domain profile. / Collectrin domain / Renal amino acid transporter / Peptidase family M2 domain profile. / Peptidase M2, peptidyl-dipeptidase A / Angiotensin-converting enzyme / Neutral zinc metallopeptidases, zinc-binding region signature.
Similarity search - Domain/homology
: / Sodium-dependent neutral amino acid transporter B(0)AT1 / Angiotensin-converting enzyme 2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.2 Å
AuthorsYan, R. / Hu, Z. / Dai, L.
Funding support China, 1items
OrganizationGrant numberCountry
National Natural Science Foundation of China (NSFC)32371267 China
CitationJournal: Nat Commun / Year: 2024
Title: Molecular basis of inhibition of the amino acid transporter BAT1 (SLC6A19).
Authors: Junyang Xu / Ziwei Hu / Lu Dai / Aditya Yadav / Yashan Jiang / Angelika Bröer / Michael G Gardiner / Malcolm McLeod / Renhong Yan / Stefan Bröer /
Abstract: The epithelial neutral amino acid transporter BAT1 (SLC6A19) is the major transporter for the absorption of neutral amino acids in the intestine and their reabsorption in the kidney. Mouse models ...The epithelial neutral amino acid transporter BAT1 (SLC6A19) is the major transporter for the absorption of neutral amino acids in the intestine and their reabsorption in the kidney. Mouse models have demonstrated that lack of BAT1 can normalize elevated plasma amino acids in rare disorders of amino acid metabolism such as phenylketonuria and urea-cycle disorders, implying a pharmacological approach for their treatment. Here we employ a medicinal chemistry approach to generate BAT1 inhibitors with IC-values of 31-90 nM. High-resolution cryo-EM structures of BAT1 in the presence of two compounds from this series identified an allosteric binding site in the vestibule of the transporter. Mechanistically, binding of these inhibitors prevents a movement of TM1 and TM6 that is required for the transporter to make a conformational change from an outward open state to the occluded state.
History
DepositionSep 10, 2023Deposition site: PDBJ / Processing site: PDBJ
Revision 1.0Sep 11, 2024Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Sodium-dependent neutral amino acid transporter B(0)AT1
B: Angiotensin-converting enzyme 2
C: Angiotensin-converting enzyme 2
D: Sodium-dependent neutral amino acid transporter B(0)AT1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)342,91128
Polymers334,2214
Non-polymers8,69024
Water00
1


  • Idetical with deposited unit
  • defined by author
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_5551

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Components

#1: Protein Sodium-dependent neutral amino acid transporter B(0)AT1


Mass: 72929.891 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: SLC6A19 / Production host: Eukaryota (eucaryotes) / References: UniProt: Q695T7
#2: Protein Angiotensin-converting enzyme 2


Mass: 94180.453 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: ACE2 / Production host: Eukaryota (eucaryotes) / References: UniProt: Q9BYF1
#3: Polysaccharide
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose


Type: oligosaccharide / Mass: 424.401 Da / Num. of mol.: 16 / Source method: obtained synthetically
DescriptorTypeProgram
DGlcpNAcb1-4DGlcpNAcb1-ROHGlycam Condensed SequenceGMML 1.0
WURCS=2.0/1,2,1/[a2122h-1b_1-5_2*NCC/3=O]/1-1/a4-b1WURCSPDB2Glycan 1.1.0
[][D-1-deoxy-GlcpNAc]{[(4+1)][b-D-GlcpNAc]{}}LINUCSPDB-CARE
#4: Sugar
ChemComp-NAG / 2-acetamido-2-deoxy-beta-D-glucopyranose / N-acetyl-beta-D-glucosamine / 2-acetamido-2-deoxy-beta-D-glucose / 2-acetamido-2-deoxy-D-glucose / 2-acetamido-2-deoxy-glucose / N-ACETYL-D-GLUCOSAMINE


Type: D-saccharide, beta linking / Mass: 221.208 Da / Num. of mol.: 6 / Source method: obtained synthetically / Formula: C8H15NO6
IdentifierTypeProgram
DGlcpNAcbCONDENSED IUPAC CARBOHYDRATE SYMBOLGMML 1.0
N-acetyl-b-D-glucopyranosamineCOMMON NAMEGMML 1.0
b-D-GlcpNAcIUPAC CARBOHYDRATE SYMBOLPDB-CARE 1.0
GlcNAcSNFG CARBOHYDRATE SYMBOLGMML 1.0
#5: Chemical ChemComp-XF0 / 2-(4-bromanyl-3-methyl-phenoxy)-~{N}-propyl-ethanamide


Mass: 286.165 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: C12H16BrNO2
Has ligand of interestN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: ACE2-B0AT1 complex with inhibitor JX225 / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Eukaryota (eucaryotes)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
VitrificationCryogen name: ETHANE

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: FEI TITAN KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal magnification: 81000 X / Nominal defocus max: 1500 nm / Nominal defocus min: 800 nm / Calibrated defocus min: 1500 nm / Calibrated defocus max: 3000 nm / C2 aperture diameter: 70 µm / Alignment procedure: BASIC
Specimen holderCryogen: NITROGEN / Specimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER
Image recordingElectron dose: 1.5625 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Num. of grids imaged: 1 / Num. of real images: 2211
Image scansWidth: 5760 / Height: 4092

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Processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
3D reconstructionResolution: 3.2 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 1238031 / Symmetry type: POINT

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