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- PDB-9el1: ML2-SA1/PI(3,5)P2 bound TRPML2 in an open state -

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Open data


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Basic information

Entry
Database: PDB / ID: 9el1
TitleML2-SA1/PI(3,5)P2 bound TRPML2 in an open state
ComponentsMucolipin-2
KeywordsMEMBRANE PROTEIN / TRPML / calcium channel / ion transport
Function / homology
Function and homology information


positive regulation of macrophage inflammatory protein 1 alpha production / macrophage migration / NAADP-sensitive calcium-release channel activity / positive regulation of chemokine (C-C motif) ligand 5 production / iron ion transmembrane transporter activity / neutrophil migration / positive regulation of monocyte chemotactic protein-1 production / positive regulation of chemokine (C-X-C motif) ligand 2 production / TRP channels / calcium ion transmembrane transport ...positive regulation of macrophage inflammatory protein 1 alpha production / macrophage migration / NAADP-sensitive calcium-release channel activity / positive regulation of chemokine (C-C motif) ligand 5 production / iron ion transmembrane transporter activity / neutrophil migration / positive regulation of monocyte chemotactic protein-1 production / positive regulation of chemokine (C-X-C motif) ligand 2 production / TRP channels / calcium ion transmembrane transport / calcium channel activity / recycling endosome membrane / late endosome membrane / protein transport / adaptive immune response / lysosome / innate immune response / identical protein binding / membrane / plasma membrane
Similarity search - Function
Mucolipin / : / Mucolipin, extracytosolic domain / Polycystin cation channel, PKD1/PKD2 / Polycystin cation channel
Similarity search - Domain/homology
: / Chem-EUJ / Mucolipin-2
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 2.61 Å
AuthorsSchmiege, P. / Li, X.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM149533 United States
CitationJournal: To Be Published
Title: ML2-SA1/PI(3,5)P2 bound TRPML2 in an open state
Authors: Schmiege, P. / Li, X.
History
DepositionDec 3, 2024Deposition site: RCSB / Processing site: RCSB
Revision 1.0Jun 18, 2025Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Half map / Part number: 1 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Half map / Part number: 2 / Data content type: Half map / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Image / Data content type: Image / Provider: repository / Type: Initial release
Revision 1.0Jun 18, 2025Data content type: Primary map / Data content type: Primary map / Provider: repository / Type: Initial release

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Mucolipin-2
B: Mucolipin-2
C: Mucolipin-2
D: Mucolipin-2
hetero molecules


Theoretical massNumber of molelcules
Total (without water)268,18012
Polymers264,0654
Non-polymers4,1158
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
Mucolipin-2 / Transient receptor potential channel mucolipin 2 / TRPML2


Mass: 66016.297 Da / Num. of mol.: 4
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: MCOLN2 / Production host: Homo sapiens (human) / References: UniProt: Q8IZK6
#2: Chemical
ChemComp-A1BI6 / (3aS,4S,7R,7aS)-3-(2,6-dichlorophenyl)-3a,4,5,6,7,7a-hexahydro-4,7-methano-1,2-benzoxazole


Mass: 282.165 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C14H13Cl2NO / Feature type: SUBJECT OF INVESTIGATION
#3: Chemical
ChemComp-EUJ / (2R)-3-{[(S)-hydroxy{[(1S,2R,3R,4S,5S,6R)-2,4,6-trihydroxy-3,5-bis(phosphonooxy)cyclohexyl]oxy}phosphoryl]oxy}propane-1,2-diyl dioctanoate


Mass: 746.566 Da / Num. of mol.: 4 / Source method: obtained synthetically / Formula: C25H49O19P3 / Feature type: SUBJECT OF INVESTIGATION
Has ligand of interestY
Has protein modificationY

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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: ML2-SA1/PI(3,5)P2 bound TRPML2 / Type: COMPLEX / Entity ID: #1 / Source: RECOMBINANT
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: Homo sapiens (human)
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: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 1800 nm / Nominal defocus min: 800 nm
Image recordingElectron dose: 60 e/Å2 / Film or detector model: GATAN K3 BIOQUANTUM (6k x 4k)

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Processing

CTF correctionType: NONE
3D reconstructionResolution: 2.61 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 108226 / Symmetry type: POINT

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