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- EMDB-47875: Human TRPML1 bound to Sybody57 -

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Basic information

Entry
Database: EMDB / ID: EMD-47875
TitleHuman TRPML1 bound to Sybody57
Map data
Sample
  • Complex: Complex of the tetrameric TRPML1 ion channel bound to four copies of Sybody57
    • Protein or peptide: Sybody57
    • Protein or peptide: Mucolipin-1
  • Ligand: (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
KeywordsTRPML1 / sybody / ion channel / MEMBRANE PROTEIN
Function / homology
Function and homology information


positive regulation of lysosome organization / calcium ion export / intracellularly phosphatidylinositol-3,5-bisphosphate-gated monatomic cation channel activity / NAADP-sensitive calcium-release channel activity / phagosome maturation / iron ion transmembrane transporter activity / ligand-gated calcium channel activity / Transferrin endocytosis and recycling / iron ion transmembrane transport / cellular response to pH ...positive regulation of lysosome organization / calcium ion export / intracellularly phosphatidylinositol-3,5-bisphosphate-gated monatomic cation channel activity / NAADP-sensitive calcium-release channel activity / phagosome maturation / iron ion transmembrane transporter activity / ligand-gated calcium channel activity / Transferrin endocytosis and recycling / iron ion transmembrane transport / cellular response to pH / monoatomic anion channel activity / TRP channels / sodium channel activity / autophagosome maturation / monoatomic cation transport / potassium channel activity / monoatomic cation channel activity / phagocytic cup / release of sequestered calcium ion into cytosol / cellular response to calcium ion / transferrin transport / cell projection / calcium ion transmembrane transport / calcium channel activity / phagocytic vesicle membrane / late endosome membrane / late endosome / protein homotetramerization / adaptive immune response / lysosome / receptor complex / endosome membrane / lysosomal membrane / intracellular membrane-bounded organelle / lipid binding / Golgi apparatus / nucleoplasm / 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
Biological speciessynthetic construct (others) / Homo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.1 Å
AuthorsPumroy RP / Christensen CR / Salphati SP / Moiseenkova-Bell VY / Newstead S
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM144120 United States
CitationJournal: Acta Crystallogr D Struct Biol / Year: 2019
Title: Macromolecular structure determination using X-rays, neutrons and electrons: recent developments in Phenix.
Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty ...Authors: Dorothee Liebschner / Pavel V Afonine / Matthew L Baker / Gábor Bunkóczi / Vincent B Chen / Tristan I Croll / Bradley Hintze / Li Wei Hung / Swati Jain / Airlie J McCoy / Nigel W Moriarty / Robert D Oeffner / Billy K Poon / Michael G Prisant / Randy J Read / Jane S Richardson / David C Richardson / Massimo D Sammito / Oleg V Sobolev / Duncan H Stockwell / Thomas C Terwilliger / Alexandre G Urzhumtsev / Lizbeth L Videau / Christopher J Williams / Paul D Adams /
Abstract: Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological ...Diffraction (X-ray, neutron and electron) and electron cryo-microscopy are powerful methods to determine three-dimensional macromolecular structures, which are required to understand biological processes and to develop new therapeutics against diseases. The overall structure-solution workflow is similar for these techniques, but nuances exist because the properties of the reduced experimental data are different. Software tools for structure determination should therefore be tailored for each method. Phenix is a comprehensive software package for macromolecular structure determination that handles data from any of these techniques. Tasks performed with Phenix include data-quality assessment, map improvement, model building, the validation/rebuilding/refinement cycle and deposition. Each tool caters to the type of experimental data. The design of Phenix emphasizes the automation of procedures, where possible, to minimize repetitive and time-consuming manual tasks, while default parameters are chosen to encourage best practice. A graphical user interface provides access to many command-line features of Phenix and streamlines the transition between programs, project tracking and re-running of previous tasks.
History
DepositionNov 12, 2024-
Header (metadata) releaseJan 21, 2026-
Map releaseJan 21, 2026-
UpdateJan 21, 2026-
Current statusJan 21, 2026Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_47875.png

Downloads & links

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Map

FileDownload / File: emd_47875.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.07 Å/pix.
x 320 pix.
= 342.4 Å		1.07 Å/pix.
x 320 pix.
= 342.4 Å		1.07 Å/pix.
x 320 pix.
= 342.4 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.07 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.3
Minimum - Maximum-1.7445827 - 2.750718
Average (Standard dev.)0.0013851266 (±0.056052025)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions320320320
Spacing320320320
CellA=B=C: 342.40002 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #1

Fileemd_47875_half_map_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: #2

Fileemd_47875_half_map_2.map
Projections & Slices
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Histogram

Histogram (log scale)

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Sample components

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Entire : Complex of the tetrameric TRPML1 ion channel bound to four copies...

EntireName: Complex of the tetrameric TRPML1 ion channel bound to four copies of Sybody57
Components
  • Complex: Complex of the tetrameric TRPML1 ion channel bound to four copies of Sybody57
    • Protein or peptide: Sybody57
    • Protein or peptide: Mucolipin-1
  • Ligand: (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

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Supramolecule #1: Complex of the tetrameric TRPML1 ion channel bound to four copies...

SupramoleculeName: Complex of the tetrameric TRPML1 ion channel bound to four copies of Sybody57
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#2
Source (natural)Organism: synthetic construct (others)

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Macromolecule #1: Sybody57

MacromoleculeName: Sybody57 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 16.761428 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
GSSSQVQLVE SGGGLVQAGG SLRLSCAASG FPVNAVWMHW YRQAPGKERE WVAAIRSYGW YTWYADSVKG RFTISRDNAK NTVYLQMNS LKPEDAAVYY CNVKDTGEDK EKYDYWGQGT QVTVSAGRAG EQKLISEEDL NSAVDHHHHH H

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Macromolecule #2: Mucolipin-1

MacromoleculeName: Mucolipin-1 / type: protein_or_peptide / ID: 2 / Number of copies: 4 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 65.084996 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MTAPAGPRGS ETERLLTPNP GYGTQAGPSP APPTPPEEED LRRRLKYFFM SPCDKFRAKG RKPCKLMLQV VKILVVTVQL ILFGLSNQL AVTFREENTI AFRHLFLLGY SDGADDTFAA YTREQLYQAI FHAVDQYLAL PDVSLGRYAY VRGGGDPWTN G SGLALCQR ...String:
MTAPAGPRGS ETERLLTPNP GYGTQAGPSP APPTPPEEED LRRRLKYFFM SPCDKFRAKG RKPCKLMLQV VKILVVTVQL ILFGLSNQL AVTFREENTI AFRHLFLLGY SDGADDTFAA YTREQLYQAI FHAVDQYLAL PDVSLGRYAY VRGGGDPWTN G SGLALCQR YYHRGHVDPA NDTFDIDPMV VTDCIQVDPP ERPPPPPSDD LTLLESSSSY KNLTLKFHKL VNVTIHFRLK TI NLQSLIN NEIPDCYTFS VLITFDNKAH SGRIPISLET QAHIQECKHP SVFQHGDNSF RLLFDVVVIL TCSLSFLLCA RSL LRGFLL QNEFVGFMWR QRGRVISLWE RLEFVNGWYI LLVTSDVLTI SGTIMKIGIE AKNLASYDVC SILLGTSTLL VWVG VIRYL TFFHNYNILI ATLRVALPSV MRFCCCVAVI YLGYCFCGWI VLGPYHVKFR SLSMVSECLF SLINGDDMFV TFAAM QAQQ GRSSLVWLFS QLYLYSFISL FIYMVLSLFI ALITGAYDTI KHPGGAGAEE SELQAYIAQC QDSPTSGKFR RGSGSA CSL LCCCGRDPSE EHSLLVN

UniProtKB: Mucolipin-1

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Macromolecule #3: (2R)-3-{[(S)-hydroxy{[(1S,2R,3R,4S,5S,6R)-2,4,6-trihydroxy-3,5-bi...

MacromoleculeName: (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
type: ligand / ID: 3 / Number of copies: 4 / Formula: EUJ
Molecular weightTheoretical: 746.566 Da
Chemical component information

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

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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

BufferpH: 8
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 (6k x 4k) / Average electron dose: 49.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 25.0 µm / Nominal defocus min: 8.0 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: INSILICO MODEL
Final reconstructionApplied symmetry - Point group: C4 (4 fold cyclic) / Resolution.type: BY AUTHOR / Resolution: 3.1 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 48890
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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