[English] 日本語
Yorodumi
- EMDB-53225: Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc... -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-53225
TitleHuman myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc (15 mol% DOPS, 2 mol% PI(4,5)P2)
Map datahuman myoferlin (1-1997) in complex with a lipid nanodisc (15 mol% DOPS, 2 mol% PIP2), consensus map (map M7)
Sample
  • Complex: Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc (comprising 15 mol% DOPS and 2 mol% PI(4,5)P2)
    • Protein or peptide: Myoferlin
  • Ligand: 1,2-DICAPROYL-SN-PHOSPHATIDYL-L-SERINE
  • Ligand: CALCIUM ION
KeywordsFerlins / myoferlin / multi-C2 domains / lipid nanodisc / MEMBRANE PROTEIN
Function / homology
Function and homology information


regulation of neurotransmitter secretion / plasma membrane repair / blood circulation / muscle contraction / caveola / phospholipid binding / centriolar satellite / synaptic vesicle membrane / nuclear envelope / cytoplasmic vesicle ...regulation of neurotransmitter secretion / plasma membrane repair / blood circulation / muscle contraction / caveola / phospholipid binding / centriolar satellite / synaptic vesicle membrane / nuclear envelope / cytoplasmic vesicle / nuclear membrane / ciliary basal body / cilium / intracellular membrane-bounded organelle / calcium ion binding / extracellular exosome / plasma membrane
Similarity search - Function
Ferlin A-domain / FerA (NUC095) domain / FerA / Ferlin B-domain / FerIin domain / Ferlin, C-terminal domain / Ferlin, second C2 domain / Ferlin family / Ferlin, third C2 domain / Ferlin, fourth C2 domain ...Ferlin A-domain / FerA (NUC095) domain / FerA / Ferlin B-domain / FerIin domain / Ferlin, C-terminal domain / Ferlin, second C2 domain / Ferlin family / Ferlin, third C2 domain / Ferlin, fourth C2 domain / Ferlin, fifth C2 domain / Ferlin, sixth C2 domain / Ferlin, first C2 domain / : / FerB (NUC096) domain / FerI (NUC094) domain / Ferlin C-terminus / Ferlin dsRNA-binding domain-like domain / FerB / FerI / Peroxin/Ferlin domain / Dysferlin domain, N-terminal region. / Dysferlin domain, C-terminal region. / Protein kinase C conserved region 2 (CalB) / C2 domain / C2 domain / C2 domain profile. / C2 domain superfamily
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.8 Å
AuthorsCretu C / Moser T
Funding support Germany, 1 items
OrganizationGrant numberCountry
German Research Foundation (DFG)CR 937/2-1 and EXC 2067/1-390729940 Germany
CitationJournal: EMBO J / Year: 2025
Title: Structural insights into lipid membrane binding by human ferlins.
Authors: Constantin Cretu / Aleksandar Chernev / Csaba Zoltán Kibédi Szabó / Vladimir Pena / Henning Urlaub / Tobias Moser / Julia Preobraschenski /
Abstract: Ferlins are ancient membrane proteins with a unique architecture, and play central roles in crucial processes that involve Ca-dependent vesicle fusion. Despite their links to multiple human diseases ...Ferlins are ancient membrane proteins with a unique architecture, and play central roles in crucial processes that involve Ca-dependent vesicle fusion. Despite their links to multiple human diseases and numerous functional studies, a mechanistic understanding of how these multi-C domain-containing proteins interact with lipid membranes to promote membrane remodelling and fusion is currently lacking. Here we obtain near-complete cryo-electron microscopy structures of human myoferlin and dysferlin in their Ca- and lipid-bound states. We show that ferlins adopt compact, ring-like tertiary structures upon membrane binding. The top arch of the ferlin ring, composed of the CC-CD region, is rigid and exhibits only little variability across the observed functional states. In contrast, the N-terminal CB and the C-terminal CF-CG domains cycle between alternative conformations and, in response to Ca, close the ferlin ring, promoting tight interaction with the target membrane. Probing key domain interfaces validates the observed architecture, and informs a model of how ferlins engage lipid bilayers in a Ca-dependent manner. This work reveals the general principles of human ferlin structures and provides a framework for future analyses of ferlin-dependent cellular functions and disease mechanisms.
History
DepositionMar 20, 2025-
Header (metadata) releaseJun 4, 2025-
Map releaseJun 4, 2025-
UpdateJun 4, 2025-
Current statusJun 4, 2025Processing site: PDBe / Status: Released

-
Structure visualization

Supplemental images

emd_53225.png

Downloads & links

-
Map

FileDownload / File: emd_53225.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationhuman myoferlin (1-1997) in complex with a lipid nanodisc (15 mol% DOPS, 2 mol% PIP2), consensus map (map M7)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.72 Å/pix.
x 360 pix.
= 259.2 Å		0.72 Å/pix.
x 360 pix.
= 259.2 Å		0.72 Å/pix.
x 360 pix.
= 259.2 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.72 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.014
Minimum - Maximum-0.06870185 - 0.14684491
Average (Standard dev.)0.00010172423 (±0.0039597373)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 259.2 Å
α=β=γ: 90.0 °

-
Supplemental data

-
Mask #1

Fileemd_53225_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Additional map: human myoferlin (1-1997) in complex with a lipid...

Fileemd_53225_additional_1.map
Annotationhuman myoferlin (1-1997) in complex with a lipid nanodisc (15 mol% DOPS, 2 mol% PIP2), overall map (map M8)
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: human myoferlin (1-1997) in complex with a lipid...

Fileemd_53225_half_map_1.map
Annotationhuman myoferlin (1-1997) in complex with a lipid nanodisc (15 mol% DOPS, 2 mol% PIP2), half map A (map M7)
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Half map: human myoferlin (1-1997) in complex with a lipid...

Fileemd_53225_half_map_2.map
Annotationhuman myoferlin (1-1997) in complex with a lipid nanodisc (15 mol% DOPS, 2 mol% PIP2), half map B (map M7)
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

-
Sample components

-
Entire : Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc...

EntireName: Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc (comprising 15 mol% DOPS and 2 mol% PI(4,5)P2)
Components
  • Complex: Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc (comprising 15 mol% DOPS and 2 mol% PI(4,5)P2)
    • Protein or peptide: Myoferlin
  • Ligand: 1,2-DICAPROYL-SN-PHOSPHATIDYL-L-SERINE
  • Ligand: CALCIUM ION

-
Supramolecule #1: Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc...

SupramoleculeName: Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc (comprising 15 mol% DOPS and 2 mol% PI(4,5)P2)
type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)

-
Macromolecule #1: Myoferlin

MacromoleculeName: Myoferlin / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 232.625953 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MASWSHPQFE KGGGSGGGSG GGSWSHPQFE KLEVLFQGPG SGDKDCEQSN AMLRVIVESA SNIPKTKFGK PDPIVSVIFK DEKKKTKKV DNELNPVWNE ILEFDLRGIP LDFSSSLGII VKDFETIGQN KLIGTATVAL KDLTGDQSRS LPYKLISLLN E RGQDTGAT ...String:
MASWSHPQFE KGGGSGGGSG GGSWSHPQFE KLEVLFQGPG SGDKDCEQSN AMLRVIVESA SNIPKTKFGK PDPIVSVIFK DEKKKTKKV DNELNPVWNE ILEFDLRGIP LDFSSSLGII VKDFETIGQN KLIGTATVAL KDLTGDQSRS LPYKLISLLN E RGQDTGAT IDLVIGYDPP SAPHPNDLSG PSVPGMGGDG EEDEGDEDRL DNAVRGPGPK GPVGTVSEAQ LARRLTKVKN SR RMLSNKP QDFQIRVRVI EGRQLSGNNI RPVVKVHVCG QTHRTRIKRG NNPFFDELFF YNVNMTPSEL MDEIISIRVY NSH SLRADC LMGEFKIDVG FVYDEPGHAV MRKWLLLNDP EDTSSGSKGY MKVSMFVLGT GDEPPPERRD RDNDSDDVES NLLL PAGIA LRWVTFLLKI YRAEDIPQMD DAFSQTVKEI FGGNADKKNL VDPFVEVSFA GKKVCTNIIE KNANPEWNQV VNLQI KFPS VCEKIKLTIY DWDRLTKNDV VGTTYLHLSK IAASGGEVED FSSSGTGAAS YTVNTGETEV GFVPTFGPCY LNLYGS PRE YTGFPDPYDE LNTGKGEGVA YRGRILVELA TFLEKTPPDK KLEPISNDDL LVVEKYQRRR KYSLSAVFHS ATMLQDV GE AIQFEVSIGN YGNRFDTTCK PLASTTQYSR AVFDGNYYYY LPWAHTKPVV TLTSYWEDIS HRLDAVNTLL AMAERLQT N IEALKSGIQG KIPANQLAEL WLKLIDEVIE DTRYTLPLTE GKANVTVLDT QIRKLRSRSL SQIHEAAVRM RSEATDVKS TLAEIEDWLD KLMQLTEEPQ NSMPDIIIWM IRGEKRLAYA RIPAHQVLYS TSGENASGKY CGKTQTIFLK YPQEKNNGPK VPVELRVNI WLGLSAVEKK FNSFAEGTFT VFAEMYENQA LMFGKWGTSG LVGRHKFSDV TGKIKLKREF FLPPKGWEWE G EWIVDPER SLLTEADAGH TEFTDEVYQN ESRYPGGDWK PAEDTYTDAN GDKAASPSEL TCPPGWEWED DAWSYDINRA VD EKGWEYG ITIPPDHKPK SWVAAEKMYH THRRRRLVRK RKKDLTQTAS STARAMEELQ DQEGWEYASL IGWKFHWKQR SSD TFRRRR WRRKMAPSET HGAAAIFKLE GALGADTTED GDEKSLEKQK HSATTVFGAN TPIVSCNFDR VYIYHLRCYV YQAR NLLAL DKDSFSDPYA HICFLHRSKT TEIIHSTLNP TWDQTIIFDE VEIYGEPQTV LQNPPKVIME LFDNDQVGKD EFLGR SIFS PVVKLNSEMD ITPKLLWHPV MNGDKACGDV LVTAELILRG KDGSNLPILP PQRAPNLYMV PQGIRPVVQL TAIEIL AWG LRNMKNFQMA SITSPSLVVE CGGERVESVV IKNLKKTPNF PSSVLFMKVF LPKEELYMPP LVIKVIDHRQ FGRKPVV GQ CTIERLDRFR CDPYAGKEDI VPQLKASLLS APPCRDIVIE MEDTKPLLAS KLTEKEEEIV DWWSKFYASS GEHEKCGQ Y IQKGYSKLKI YNCELENVAE FEGLTDFSDT FKLYRGKSDE NEDPSVVGEF KGSFRIYPLP DDPSVPAPPR QFRELPDSV PQECTVRIYI VRGLELQPQD NNGLCDPYIK ITLGKKVIED RDHYIPNTLN PVFGRMYELS CYLPQEKDLK ISVYDYDTFT RDEKVGETI IDLENRFLSR FGSHCGIPEE YCVSGVNTWR DQLRPTQLLQ NVARFKGFPQ PILSEDGSRI RYGGRDYSLD E FEANKILH QHLGAPEERL ALHILRTQGL VPEHVETRTL HSTFQPNISQ GKLQMWVDVF PKSLGPPGPP FNITPRKAKK YY LRVIIWN TKDVILDEKS ITGEEMSDIY VKGWVPGNEE NKQKTDVHYR SLDGEGNFNW RFVFPFDYLP AEQLCIVAKK EHF WSIDQT EFRIPPRLII QIWDNDKFSL DDYLGFLELD LRHTIIPAKS PEKCRLDMIP DLKAMNPLKA KTASLFEQKS MKGW WPCYA EKDGARVMAG KVEMTLEILN EKEADERPAG KGRDEPNMNP KLD

UniProtKB: Myoferlin

-
Macromolecule #2: 1,2-DICAPROYL-SN-PHOSPHATIDYL-L-SERINE

MacromoleculeName: 1,2-DICAPROYL-SN-PHOSPHATIDYL-L-SERINE / type: ligand / ID: 2 / Number of copies: 2 / Formula: PSF
Molecular weightTheoretical: 455.437 Da
Chemical component information

ChemComp-PSF:
1,2-DICAPROYL-SN-PHOSPHATIDYL-L-SERINE

-
Macromolecule #3: CALCIUM ION

MacromoleculeName: CALCIUM ION / type: ligand / ID: 3 / Number of copies: 10 / Formula: CA
Molecular weightTheoretical: 40.078 Da

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

Concentration0.8 mg/mL
BufferpH: 7.5
Component:
ConcentrationFormulaName
25.0 mMHEPES4-(2-Hydroxyethyl)-1-piperazine ethanesulfonic acid
200.0 mMKClpotassium chloride
2.5 % (v/v)C3H8O3glycerol
1.0 mMTCEPTris(2-carboxyethyl)phosphine hydrochloride
0.5 mMCaCl2calcium chloride
GridModel: UltrAuFoil R1.2/1.3 / Material: GOLD / Mesh: 300 / Support film - Material: GOLD / Support film - topology: HOLEY / Pretreatment - Type: PLASMA CLEANING / Pretreatment - Time: 60 sec. / Pretreatment - Atmosphere: AIR
VitrificationCryogen name: ETHANE-PROPANE / Chamber humidity: 100 % / Chamber temperature: 277.15 K / Instrument: FEI VITROBOT MARK IV
Details: After the application of 3 uL sample (at A280~0.8), the grid was blotted for 7.5 s using a blot force 3..
DetailsPrior to cryo-EM grid preparation, the sample was crosslinked with glutaraldehyde (0.05 % (v/v)) in batch, in the presence of 50 uM WJ460 (small-molecule inhibitor) and purified by size-exclusion chromatography on Superose 6 10/300.

-
Electron microscopy

MicroscopeTFS KRIOS
Specialist opticsEnergy filter - Name: TFS Selectris / Energy filter - Slit width: 10 eV
DetailsObjective aperture: 100 um
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Number grids imaged: 1 / Number real images: 7305 / Average exposure time: 3.46 sec. / Average electron dose: 39.89 e/Å2 / Details: 7,014 movies were accepted after curation.
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 50.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.1 µm / Nominal magnification: 165000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Particle selectionNumber selected: 2484379
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: OTHER / Details: Ab initio reconstruction (in cryoSPARC)
Final reconstructionNumber classes used: 1 / Applied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 2.8 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 583145
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final 3D classificationNumber classes: 5
FSC plot (resolution estimation)

-
Atomic model buiding 1

Initial modelChain - Chain ID: D / Chain - Source name: AlphaFold / Chain - Initial model type: in silico model
RefinementSpace: REAL / Protocol: AB INITIO MODEL / Overall B value: 154.78
Output model

PDB-9qle:
Human myoferlin (1-1997) in complex with an MSP2N2 lipid nanodisc (15 mol% DOPS, 2 mol% PI(4,5)P2)

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more