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Open data
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Basic information
| Entry | Database: PDB / ID: 8i91 | ||||||
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| Title | ACE2-SIT1 complex bound with proline | ||||||
Components |
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Keywords | MEMBRANE PROTEIN / transporter | ||||||
| Function / homology | Function and homology informationproline:sodium symporter activity / L-isoleucine transmembrane transporter activity / solute:sodium symporter activity / L-isoleucine import across plasma membrane / L-proline import across plasma membrane / Variant SLC6A20 contributes towards hyperglycinuria (HG) and iminoglycinuria (IG) / Variant SLC6A20 contributes towards hyperglycinuria (HG) and iminoglycinuria (IG) / amino-acid betaine transport / proline import across plasma membrane / L-proline transmembrane transporter activity ...proline:sodium symporter activity / L-isoleucine transmembrane transporter activity / solute:sodium symporter activity / L-isoleucine import across plasma membrane / L-proline import across plasma membrane / Variant SLC6A20 contributes towards hyperglycinuria (HG) and iminoglycinuria (IG) / Variant SLC6A20 contributes towards hyperglycinuria (HG) and iminoglycinuria (IG) / amino-acid betaine transport / proline import across plasma membrane / L-proline transmembrane transporter activity / amino-acid betaine transmembrane transporter activity / glycine import across plasma membrane / glycine transport / proline transport / amino acid import across plasma membrane / neutral L-amino acid transmembrane transporter activity / Amino acid transport across the plasma membrane / amino acid transmembrane transporter activity / SLC-mediated transport of neurotransmitters / positive regulation of amino acid transport / 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 / positive regulation of gap junction assembly / regulation of systemic arterial blood pressure by renin-angiotensin / tryptophan transport / regulation of cardiac conduction / maternal process involved in female pregnancy / peptidyl-dipeptidase activity / regulation of vasoconstriction / transporter activator activity / Metabolism of Angiotensinogen to Angiotensins / transport across blood-brain barrier / carboxypeptidase activity / angiotensin maturation / viral life cycle / Attachment and Entry / receptor-mediated endocytosis of virus by host cell / metallocarboxypeptidase activity / positive regulation of cardiac muscle contraction / regulation of cytokine production / sodium ion transmembrane transport / blood vessel diameter maintenance / negative regulation of smooth muscle cell proliferation / brush border membrane / negative regulation of ERK1 and ERK2 cascade / positive regulation of reactive oxygen species metabolic process / metallopeptidase activity / endocytic vesicle membrane / regulation of cell population proliferation / virus receptor activity / regulation of inflammatory response / endopeptidase activity / viral translation / Induction of Cell-Cell Fusion / Potential therapeutics for SARS / membrane fusion / entry receptor-mediated virion attachment to host cell / Attachment and Entry / receptor-mediated virion attachment to host cell / cilium / apical plasma membrane / membrane raft / endoplasmic reticulum lumen / symbiont entry into host cell / cell surface / negative regulation of transcription by RNA polymerase II / extracellular space / extracellular exosome / extracellular region / zinc ion binding / identical protein binding / membrane / plasma membrane Similarity search - Function | ||||||
| Biological species | Homo sapiens (human) | ||||||
| Method | ELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.3 Å | ||||||
Authors | Li, Y.N. / Zhang, Y.Y. / Shen, Y.P. / Yan, R.H. | ||||||
| Funding support | China, 1items
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Citation | Journal: Cell Discov / Year: 2023Title: Structural insight into the substrate recognition and transport mechanism of amino acid transporter complex ACE2-BAT1 and ACE2-SIT1. Authors: Yaning Li / Yiming Chen / Yuanyuan Zhang / Yaping Shen / Kangtai Xu / Yaqi Liu / Zilong Wang / Renhong Yan / ![]() | ||||||
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Structure visualization
| Structure viewer | Molecule: Molmil Jmol/JSmol |
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Downloads & links
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Download
| PDBx/mmCIF format | 8i91.cif.gz | 494.9 KB | Display | PDBx/mmCIF format |
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| PDB format | pdb8i91.ent.gz | 395.3 KB | Display | PDB format |
| PDBx/mmJSON format | 8i91.json.gz | Tree view | PDBx/mmJSON format | |
| Others | Other downloads |
-Validation report
| Summary document | 8i91_validation.pdf.gz | 2 MB | Display | wwPDB validaton report |
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| Full document | 8i91_full_validation.pdf.gz | 2.1 MB | Display | |
| Data in XML | 8i91_validation.xml.gz | 89.2 KB | Display | |
| Data in CIF | 8i91_validation.cif.gz | 131.4 KB | Display | |
| Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/i9/8i91 ftp://data.pdbj.org/pub/pdb/validation_reports/i9/8i91 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 35254MC ![]() 8i92C ![]() 8i93C M: map data used to model this data C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
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Assembly
| Deposited unit | ![]()
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Components
-Protein , 2 types, 4 molecules ACBD
| #1: Protein | Mass: 95379.828 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Gene: ACE2, UNQ868/PRO1885 / Production host: Homo sapiens (human)References: UniProt: Q9BYF1, angiotensin-converting enzyme 2, Hydrolases; Acting on peptide bonds (peptidases); Metallocarboxypeptidases #2: Protein | Mass: 68224.820 Da / Num. of mol.: 2 Source method: isolated from a genetically manipulated source Source: (gene. exp.) Homo sapiens (human) / Production host: Homo sapiens (human) / References: UniProt: Q9NP91 |
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-Sugars , 2 types, 18 molecules 
| #3: Polysaccharide | 2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose Source method: isolated from a genetically manipulated source #4: Sugar | ChemComp-NAG / |
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-Non-polymers , 3 types, 6 molecules 




| #5: Chemical | | #6: Chemical | #7: Chemical | |
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-Details
| Has ligand of interest | Y |
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| Has protein modification | Y |
-Experimental details
-Experiment
| Experiment | Method: ELECTRON MICROSCOPY |
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| EM experiment | Aggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction |
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Sample preparation
| Component | Name: ACE2-SIT1 complex bound with proline / Type: COMPLEX / Entity ID: #1-#2 / Source: RECOMBINANT |
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| Source (natural) | Organism: Homo sapiens (human) |
| Source (recombinant) | Organism: Homo sapiens (human) |
| Buffer solution | pH: 7.4 |
| Specimen | Embedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES |
| Specimen support | Grid material: GOLD |
| Vitrification | Cryogen name: ETHANE |
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Electron microscopy imaging
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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| Microscopy | Model: FEI TITAN KRIOS |
| Electron gun | Electron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM |
| Electron lens | Mode: BRIGHT FIELD / Nominal defocus max: 2200 nm / Nominal defocus min: 1200 nm |
| Image recording | Electron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k) |
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Processing
| EM software | Name: cryoSPARC / Version: v4 / Category: 3D reconstruction |
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| CTF correction | Type: PHASE FLIPPING AND AMPLITUDE CORRECTION |
| 3D reconstruction | Resolution: 3.3 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 992519 / Symmetry type: POINT |
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About Yorodumi




Homo sapiens (human)
China, 1items
Citation










PDBj






microscopy
