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Open data
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Basic information
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| Title | Structure of human Wnt7a bound to WLS and RECK | ||||||||||||
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Keywords | SIGNALING PROTEIN | ||||||||||||
| Function / homology | Function and homology informationregulation of establishment of blood-brain barrier / positive regulation of excitatory synapse assembly / positive regulation of protein localization to presynapse / postsynapse assembly / uterus morphogenesis / lens fiber cell development / oviduct development / Wnt protein secretion / regulation of extracellular matrix organization / blood vessel maturation ...regulation of establishment of blood-brain barrier / positive regulation of excitatory synapse assembly / positive regulation of protein localization to presynapse / postsynapse assembly / uterus morphogenesis / lens fiber cell development / oviduct development / Wnt protein secretion / regulation of extracellular matrix organization / blood vessel maturation / embryonic axis specification / positive regulation of Wnt protein secretion / cell proliferation in forebrain / WNT ligand biogenesis and trafficking / stem cell development / excitatory synapse assembly / metalloendopeptidase inhibitor activity / embryonic hindlimb morphogenesis / Post-translational modification: synthesis of GPI-anchored proteins / anterior/posterior axis specification / embryonic forelimb morphogenesis / positive regulation of epithelial cell proliferation involved in wound healing / cementum mineralization / secondary palate development / exocrine pancreas development / presynapse assembly / sex differentiation / hindbrain development / synaptic vesicle recycling / Wnt-protein binding / negative regulation of extracellular matrix disassembly / dendritic spine morphogenesis / positive regulation of synapse assembly / mesoderm formation / sprouting angiogenesis / frizzled binding / chondrocyte differentiation / embryonic digit morphogenesis / Class B/2 (Secretin family receptors) / Wnt signalosome / regulation of postsynapse organization / wound healing, spreading of epidermal cells / Wnt signaling pathway, planar cell polarity pathway / cartilage condensation / regulation of canonical Wnt signaling pathway / midbrain development / endopeptidase inhibitor activity / cell fate commitment / regulation of synaptic vesicle exocytosis / organelle membrane / canonical Wnt signaling pathway / positive regulation of protein metabolic process / regulation of angiogenesis / cellular response to transforming growth factor beta stimulus / positive regulation of Wnt signaling pathway / regulation of presynapse assembly / extracellular matrix organization / side of membrane / coreceptor activity / axonogenesis / endomembrane system / negative regulation of cell migration / cytokine activity / positive regulation of excitatory postsynaptic potential / serine-type endopeptidase inhibitor activity / trans-Golgi network / Wnt signaling pathway / intracellular protein transport / negative regulation of neurogenesis / positive regulation of JNK cascade / Golgi lumen / Schaffer collateral - CA1 synapse / positive regulation of canonical Wnt signaling pathway / endocytic vesicle membrane / response to estradiol / neuron differentiation / presynapse / cytoplasmic vesicle / early endosome membrane / extracellular matrix / early endosome / positive regulation of canonical NF-kappaB signal transduction / endoplasmic reticulum lumen / receptor ligand activity / signaling receptor binding / Golgi membrane / positive regulation of DNA-templated transcription / endoplasmic reticulum membrane / glutamatergic synapse / Golgi apparatus / cell surface / endoplasmic reticulum / positive regulation of transcription by RNA polymerase II / : / extracellular exosome / extracellular region / membrane / identical protein binding / plasma membrane Similarity search - Function | ||||||||||||
| Biological species | Homo sapiens (human) | ||||||||||||
| Method | single particle reconstruction / cryo EM / Resolution: 3.23 Å | ||||||||||||
Authors | Qi X / Hu Q / Li X | ||||||||||||
| Funding support | United States, 3 items
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Citation | Journal: Cell / Year: 2023Title: Molecular basis of Wnt biogenesis, secretion, and Wnt7-specific signaling. Authors: Xiaofeng Qi / Qinli Hu / Nadia Elghobashi-Meinhardt / Tao Long / Hongwen Chen / Xiaochun Li / ![]() Abstract: Wnt proteins are enzymatically lipidated by Porcupine (PORCN) in the ER and bind to Wntless (WLS) for intracellular transport and secretion. Mechanisms governing the transfer of these low-solubility ...Wnt proteins are enzymatically lipidated by Porcupine (PORCN) in the ER and bind to Wntless (WLS) for intracellular transport and secretion. Mechanisms governing the transfer of these low-solubility Wnts from the ER to the extracellular space remain unclear. Through structural and functional analyses of Wnt7a, a crucial Wnt involved in central nervous system angiogenesis and blood-brain barrier maintenance, we have elucidated the principles of Wnt biogenesis and Wnt7-specific signaling. The Wnt7a-WLS complex binds to calreticulin (CALR), revealing that CALR functions as a chaperone to facilitate Wnt transfer from PORCN to WLS during Wnt biogenesis. Our structures, functional analyses, and molecular dynamics simulations demonstrate that a phospholipid in the core of Wnt-bound WLS regulates the association and dissociation between Wnt and WLS, suggesting a lipid-mediated Wnt secretion mechanism. Finally, the structure of Wnt7a bound to RECK, a cell-surface Wnt7 co-receptor, reveals how RECK engages the N-terminal domain of Wnt7a to activate Wnt7-specific signaling. | ||||||||||||
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Structure visualization
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Downloads & links
-EMDB archive
| Map data | emd_41765.map.gz | 117.9 MB | EMDB map data format | |
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| Header (meta data) | emd-41765-v30.xml emd-41765.xml | 20.8 KB 20.8 KB | Display Display | EMDB header |
| Images | emd_41765.png | 48.2 KB | ||
| Filedesc metadata | emd-41765.cif.gz | 7.2 KB | ||
| Others | emd_41765_half_map_1.map.gz emd_41765_half_map_2.map.gz | 116 MB 116 MB | ||
| Archive directory | https://data.pdbj.org/pub/emdb/structures/EMD-41765 ftp://data.pdbj.org/pub/emdb/structures/EMD-41765 | HTTPS FTP |
-Related structure data
| Related structure data | ![]() 8tzpMC ![]() 8tzoC ![]() 8tzrC ![]() 8tzsC M: atomic model generated by this map C: citing same article ( |
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| Similar structure data | Similarity search - Function & homology F&H Search |
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Links
| EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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| Related items in Molecule of the Month |
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Map
| File | Download / File: emd_41765.map.gz / Format: CCP4 / Size: 125 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES) | ||||||||||||||||||||||||||||||||||||
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| Projections & slices | Image control
Images are generated by Spider. | ||||||||||||||||||||||||||||||||||||
| Voxel size | X=Y=Z: 0.83 Å | ||||||||||||||||||||||||||||||||||||
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| Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
| Details | EMDB XML:
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-Supplemental data
-Half map: #1
| File | emd_41765_half_map_1.map | ||||||||||||
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| Density Histograms |
-Half map: #2
| File | emd_41765_half_map_2.map | ||||||||||||
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| Density Histograms |
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Sample components
-Entire : Wnt7a-WLS-RECK Complex
| Entire | Name: Wnt7a-WLS-RECK Complex |
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| Components |
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-Supramolecule #1: Wnt7a-WLS-RECK Complex
| Supramolecule | Name: Wnt7a-WLS-RECK Complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#3 |
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| Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Protein Wnt-7a
| Macromolecule | Name: Protein Wnt-7a / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 39.062977 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MNRKARRCLG HLFLSLGMVY LRIGGFSSVV ALGASIICNK IPGLAPRQRA ICQSRPDAII VIGEGSQMGL DECQFQFRNG RWNCSALGE RTVFGKELKV GSREAAFTYA IIAAGVAHAI TAACTQGNLS DCGCDKEKQG QYHRDEGWKW GGCSADIRYG I GFAKVFVD ...String: MNRKARRCLG HLFLSLGMVY LRIGGFSSVV ALGASIICNK IPGLAPRQRA ICQSRPDAII VIGEGSQMGL DECQFQFRNG RWNCSALGE RTVFGKELKV GSREAAFTYA IIAAGVAHAI TAACTQGNLS DCGCDKEKQG QYHRDEGWKW GGCSADIRYG I GFAKVFVD AREIKQNART LMNLHNNEAG RKILEENMKL ECKCHGVSGS CTTKTCWTTL PQFRELGYVL KDKYNEAVHV EP VRASRNK RPTFLKIKKP LSYRKPMDTD LVYIEKSPNY CEEDPVTGSV GTQGRACNKT APQASGCDLM CCGRGYNTHQ YAR VWQCNC KFHWCCYVKC NTCSERTEMY TCK UniProtKB: Protein Wnt-7a |
-Macromolecule #2: Protein wntless homolog
| Macromolecule | Name: Protein wntless homolog / type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 62.317973 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MAGAIIENMS TKKLCIVGGI LLVFQIIAFL VGGLIAPGPT TAVSYMSVKC VDARKNHHKT KWFVPWGPNH CDKIRDIEEA IPREIEAND IVFSVHIPLP HMEMSPWFQF MLFILQLDIA FKLNNQIREN AEVSMDVSLA YRDDAFAEWT EMAHERVPRK L KCTFTSPK ...String: MAGAIIENMS TKKLCIVGGI LLVFQIIAFL VGGLIAPGPT TAVSYMSVKC VDARKNHHKT KWFVPWGPNH CDKIRDIEEA IPREIEAND IVFSVHIPLP HMEMSPWFQF MLFILQLDIA FKLNNQIREN AEVSMDVSLA YRDDAFAEWT EMAHERVPRK L KCTFTSPK TPEHEGRYYE CDVLPFMEIG SVAHKFYLLN IRLPVNEKKK INVGIGEIKD IRLVGIHQNG GFTKVWFAMK TF LTPSIFI IMVWYWRRIT MMSRPPVLLE KVIFALGISM TFINIPVEWF SIGFDWTWML LFGDIRQGIF YAMLLSFWII FCG EHMMDQ HERNHIAGYW KQVGPIAVGS FCLFIFDMCE RGVQLTNPFY SIWTTDIGTE LAMAFIIVAG ICLCLYFLFL CFMV FQVFR NISGKQSSLP AMSKVRRLHY EGLIFRFKFL MLITLACAAM TVIFFIVSQV TEGHWKWGGV TVQVNSAFFT GIYGM WNLY VFALMFLYAP SHKNYGEDQS NGDLGVHSGE ELQLTTTITH VDGPTEIYKL TRKEAQE UniProtKB: Protein wntless homolog |
-Macromolecule #3: Reversion-inducing cysteine-rich protein with Kazal motifs
| Macromolecule | Name: Reversion-inducing cysteine-rich protein with Kazal motifs type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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| Source (natural) | Organism: Homo sapiens (human) |
| Molecular weight | Theoretical: 106.573461 KDa |
| Recombinant expression | Organism: Homo sapiens (human) |
| Sequence | String: MATVRASLRG ALLLLLAVAG VAEVAGGLAP GSAGALCCNH SKDNQMCRDV CEQIFSSKSE SRLKHLLQRA PDYCPETMVE IWNCMNSSL PGVFKKSDGW VGLGCCELAI ALECRQACKQ ASSKNDISKV CRKEYENALF SCISRNEMGS VCCSYAGHHT N CREYCQAI ...String: MATVRASLRG ALLLLLAVAG VAEVAGGLAP GSAGALCCNH SKDNQMCRDV CEQIFSSKSE SRLKHLLQRA PDYCPETMVE IWNCMNSSL PGVFKKSDGW VGLGCCELAI ALECRQACKQ ASSKNDISKV CRKEYENALF SCISRNEMGS VCCSYAGHHT N CREYCQAI FRTDSSPGPS QIKAVENYCA SISPQLIHCV NNYTQSYPMR NPTDSLYCCD RAEDHACQNA CKRILMSKKT EM EIVDGLI EGCKTQPLPQ DPLWQCFLES SQSVHPGVTV HPPPSTGLDG AKLHCCSKAN TSTCRELCTK LYSMSWGNTQ SWQ EFDRFC EYNPVEVSML TCLADVREPC QLGCRNLTYC TNFNNRPTEL FRSCNAQSDQ GAMNDMKLWE KGSIKMPFIN IPVL DIKKC QPEMWKAIAC SLQIKPCHSK SRGSIICKSD CVEILKKCGD QNKFPEDHTA ESICELLSPT DDLKNCIPLD TYLRP STLG NIVEEVTHPC NPNPCPANEL CEVNRKGCPS GDPCLPYFCV QGCKLGEASD FIVRQGTLIQ VPSSAGEVGC YKICSC GQS GLLENCMEMH CIDLQKSCIV GGKRKSHGTS FSIDCNVCSC FAGNLVCSTR LCLSEHSSED DRRTFTGLPC NCADQFV PV CGQNGRTYPS ACIARCVGLQ DHQFEFGSCM SKDPCNPNPC QKNQRCIPKP QVCLTTFDKF GCSQYECVPR QLACDQVQ D PVCDTDHMEH NNLCTLYQRG KSLSYKGPCQ PFCRATEPVC GHNGETYSSV CAAYSDRVAV DYYGDCQAVG VLSEHSSVA ECASVKCPSL LAAGCKPIIP PGACCPLCAG MLRVLFDKEK LDTIAKVTNK KPITVLEILQ KIRMHVSVPQ CDVFGYFSIE SEIVILIIP VDHYPKALQI EACNKEAEKI ESLINSDSPT LASHVPLSAL IISQVQVSSS VPSAGVRARP SCHSLLLPLS L GLALHLLW TYN UniProtKB: Reversion-inducing cysteine-rich protein with Kazal motifs |
-Macromolecule #4: PALMITOLEIC ACID
| Macromolecule | Name: PALMITOLEIC ACID / type: ligand / ID: 4 / Number of copies: 1 / Formula: PAM |
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| Molecular weight | Theoretical: 254.408 Da |
| Chemical component information | ![]() ChemComp-PAM: |
-Macromolecule #5: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(tri...
| Macromolecule | Name: (2S)-3-(hexadecanoyloxy)-2-[(9Z)-octadec-9-enoyloxy]propyl 2-(trimethylammonio)ethyl phosphate type: ligand / ID: 5 / Number of copies: 1 / Formula: POV |
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| Molecular weight | Theoretical: 760.076 Da |
| Chemical component information | ![]() ChemComp-POV: |
-Experimental details
-Structure determination
| Method | cryo EM |
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Processing | single particle reconstruction |
| Aggregation state | particle |
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Sample preparation
| Buffer | pH: 7.5 |
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| Vitrification | Cryogen name: ETHANE |
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Electron microscopy
| Microscope | FEI TITAN KRIOS |
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| Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 60.0 e/Å2 |
| Electron beam | Acceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN |
| Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.0 µm / Nominal defocus min: 1.0 µm |
| Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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About Yorodumi




Keywords
Homo sapiens (human)
Authors
United States, 3 items
Citation








Z (Sec.)
Y (Row.)
X (Col.)






































Processing
FIELD EMISSION GUN
