+Open data
-Basic information
Entry | Database: EMDB / ID: EMD-29677 | |||||||||
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Title | Structure of the methylosome-Lsm10/11 complex | |||||||||
Map data | ||||||||||
Sample |
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Keywords | Methylation / GENE REGULATION / TRANSFERASE | |||||||||
Function / homology | Function and homology information snRNP Assembly / mRNA 3'-end processing by stem-loop binding and cleavage / positive regulation of adenylate cyclase-inhibiting dopamine receptor signaling pathway / peptidyl-arginine N-methylation / oocyte axis specification / peptidyl-arginine methylation / type II protein arginine methyltransferase / protein-arginine omega-N symmetric methyltransferase activity / Golgi ribbon formation / negative regulation of epithelial cell proliferation involved in prostate gland development ...snRNP Assembly / mRNA 3'-end processing by stem-loop binding and cleavage / positive regulation of adenylate cyclase-inhibiting dopamine receptor signaling pathway / peptidyl-arginine N-methylation / oocyte axis specification / peptidyl-arginine methylation / type II protein arginine methyltransferase / protein-arginine omega-N symmetric methyltransferase activity / Golgi ribbon formation / negative regulation of epithelial cell proliferation involved in prostate gland development / histone H4R3 methyltransferase activity / regulation of chromatin organization / negative regulation of cell volume / secretory columnal luminar epithelial cell differentiation involved in prostate glandular acinus development / U7 snRNA binding / histone arginine N-methyltransferase activity / U7 snRNP / histone pre-mRNA 3'end processing complex / SLBP independent Processing of Histone Pre-mRNAs / SLBP Dependent Processing of Replication-Dependent Histone Pre-mRNAs / epithelial cell proliferation involved in prostate gland development / protein-arginine N-methyltransferase activity / methylosome / pICln-Sm protein complex / methyl-CpG binding / telomerase holoenzyme complex / cell volume homeostasis / mRNA cis splicing, via spliceosome / endothelial cell activation / histone H3 methyltransferase activity / positive regulation of mRNA splicing, via spliceosome / chloride transport / RNA Polymerase II Transcription Termination / regulation of mitotic nuclear division / histone methyltransferase complex / negative regulation of gene expression via chromosomal CpG island methylation / Cul4B-RING E3 ubiquitin ligase complex / positive regulation of oligodendrocyte differentiation / histone methyltransferase activity / E-box binding / negative regulation of cell differentiation / ubiquitin-like ligase-substrate adaptor activity / positive regulation of G1/S transition of mitotic cell cycle / ribonucleoprotein complex binding / spliceosomal snRNP assembly / regulation of ERK1 and ERK2 cascade / nuclear receptor coactivator activity / regulation of signal transduction by p53 class mediator / methyltransferase activity / liver regeneration / DNA-templated transcription termination / spliceosomal complex / circadian regulation of gene expression / Regulation of TP53 Activity through Methylation / RMTs methylate histone arginines / protein polyubiquitination / transcription corepressor activity / p53 binding / snRNP Assembly / ubiquitin-dependent protein catabolic process / cytoskeleton / nuclear body / chromatin remodeling / protein heterodimerization activity / positive regulation of cell population proliferation / regulation of DNA-templated transcription / chromatin / regulation of transcription by RNA polymerase II / Golgi apparatus / nucleoplasm / identical protein binding / nucleus / plasma membrane / cytosol / cytoplasm Similarity search - Function | |||||||||
Biological species | Homo sapiens (human) / Mus musculus (house mouse) | |||||||||
Method | single particle reconstruction / cryo EM / Resolution: 2.83 Å | |||||||||
Authors | Lin M / Paige A / Tong L | |||||||||
Funding support | United States, 1 items
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Citation | Journal: RNA / Year: 2023 Title: In vitro methylation of the U7 snRNP subunits Lsm11 and SmE by the PRMT5/MEP50/pICln methylosome. Authors: Xiao-Cui Yang / Anthony Desotell / Min-Han Lin / Andrew S Paige / Agata Malinowska / Yadong Sun / Wei Shen Aik / Michał Dadlez / Liang Tong / Zbigniew Dominski / Abstract: U7 snRNP is a multisubunit endonuclease required for 3' end processing of metazoan replication-dependent histone pre-mRNAs. In contrast to the spliceosomal snRNPs, U7 snRNP lacks the Sm subunits D1 ...U7 snRNP is a multisubunit endonuclease required for 3' end processing of metazoan replication-dependent histone pre-mRNAs. In contrast to the spliceosomal snRNPs, U7 snRNP lacks the Sm subunits D1 and D2 and instead contains two related proteins, Lsm10 and Lsm11. The remaining five subunits of the U7 heptameric Sm ring, SmE, F, G, B, and D3, are shared with the spliceosomal snRNPs. The pathway that assembles the unique ring of U7 snRNP is unknown. Here, we show that a heterodimer of Lsm10 and Lsm11 tightly interacts with the methylosome, a complex of the arginine methyltransferase PRMT5, MEP50, and pICln known to methylate arginines in the carboxy-terminal regions of the Sm proteins B, D1, and D3 during the spliceosomal Sm ring assembly. Both biochemical and cryo-EM structural studies demonstrate that the interaction is mediated by PRMT5, which binds and methylates two arginine residues in the amino-terminal region of Lsm11. Surprisingly, PRMT5 also methylates an amino-terminal arginine in SmE, a subunit that does not undergo this type of modification during the biogenesis of the spliceosomal snRNPs. An intriguing possibility is that the unique methylation pattern of Lsm11 and SmE plays a vital role in the assembly of the U7 snRNP. | |||||||||
History |
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-Structure visualization
Supplemental images |
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-Downloads & links
-EMDB archive
Map data | emd_29677.map.gz | 122.5 MB | EMDB map data format | |
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Header (meta data) | emd-29677-v30.xml emd-29677.xml | 18.2 KB 18.2 KB | Display Display | EMDB header |
Images | emd_29677.png | 77.6 KB | ||
Filedesc metadata | emd-29677.cif.gz | 6.6 KB | ||
Others | emd_29677_half_map_1.map.gz emd_29677_half_map_2.map.gz | 120.6 MB 120.6 MB | ||
Archive directory | http://ftp.pdbj.org/pub/emdb/structures/EMD-29677 ftp://ftp.pdbj.org/pub/emdb/structures/EMD-29677 | HTTPS FTP |
-Validation report
Summary document | emd_29677_validation.pdf.gz | 1.1 MB | Display | EMDB validaton report |
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Full document | emd_29677_full_validation.pdf.gz | 1.1 MB | Display | |
Data in XML | emd_29677_validation.xml.gz | 14.3 KB | Display | |
Data in CIF | emd_29677_validation.cif.gz | 16.9 KB | Display | |
Arichive directory | https://ftp.pdbj.org/pub/emdb/validation_reports/EMD-29677 ftp://ftp.pdbj.org/pub/emdb/validation_reports/EMD-29677 | HTTPS FTP |
-Related structure data
Related structure data | 8g1uMC M: atomic model generated by this map C: citing same article (ref.) |
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Similar structure data | Similarity search - Function & homologyF&H Search |
-Links
EMDB pages | EMDB (EBI/PDBe) / EMDataResource |
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Related items in Molecule of the Month |
-Map
File | Download / File: emd_29677.map.gz / Format: CCP4 / Size: 129.7 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 | ||||||||||||||||||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #2
File | emd_29677_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #1
File | emd_29677_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Sample components
-Entire : Methylosome
Entire | Name: Methylosome |
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Components |
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-Supramolecule #1: Methylosome
Supramolecule | Name: Methylosome / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#4 |
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Source (natural) | Organism: Homo sapiens (human) |
-Macromolecule #1: Protein arginine N-methyltransferase 5
Macromolecule | Name: Protein arginine N-methyltransferase 5 / type: protein_or_peptide / ID: 1 / Number of copies: 4 / Enantiomer: LEVO / EC number: type II protein arginine methyltransferase |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 72.766664 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: MAAMAVGGAG GSRVSSGRDL NCVPEIADTL GAVAKQGFDF LCMPVFHPRF KREFIQEPAK NRPGPQTRSD LLLSGRDWNT LIVGKLSPW IRPDSKVEKI RRNSEAAMLQ ELNFGAYLGL PAFLLPLNQE DNTNLARVLT NHIHTGHHSS MFWMRVPLVA P EDLRDDII ...String: MAAMAVGGAG GSRVSSGRDL NCVPEIADTL GAVAKQGFDF LCMPVFHPRF KREFIQEPAK NRPGPQTRSD LLLSGRDWNT LIVGKLSPW IRPDSKVEKI RRNSEAAMLQ ELNFGAYLGL PAFLLPLNQE DNTNLARVLT NHIHTGHHSS MFWMRVPLVA P EDLRDDII ENAPTTHTEE YSGEEKTWMW WHNFRTLCDY SKRIAVALEI GADLPSNHVI DRWLGEPIKA AILPTSIFLT NK KGFPVLS KMHQRLIFRL LKLEVQFIIT GTNHHSEKEF CSYLQYLEYL SQNRPPPNAY ELFAKGYEDY LQSPLQPLMD NLE SQTYEV FEKDPIKYSQ YQQAIYKCLL DRVPEEEKDT NVQVLMVLGA GRGPLVNASL RAAKQADRRI KLYAVEKNPN AVVT LENWQ FEEWGSQVTV VSSDMREWVA PEKADIIVSE LLGSFADNEL SPECLDGAQH FLKDDGVSIP GEYTSFLAPI SSSKL YNEV RACREKDRDP EAQFEMPYVV RLHNFHQLSA PQPCFTFSHP NRDPMIDNNR YCTLEFPVEV NTVLHGFAGY FETVLY QDI TLSIRPETHS PGMFSWFPIL FPIKQPITVR EGQTICVRFW RCSNSKKVWY EWAVTAPVCS AIHNPTGRSY TIGL UniProtKB: Protein arginine N-methyltransferase 5 |
-Macromolecule #2: Methylosome protein 50
Macromolecule | Name: Methylosome protein 50 / type: protein_or_peptide / ID: 2 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 36.757246 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: MRKETPPPLV PPAAREWNLP PNAPACMERQ LEAARYRSDG ALLLGASSLS GRCWAGSLWL FKDPCAAPNE GFCSAGVQTE AGVADLTWV GERGILVASD SGAVELWELD ENETLIVSKF CKYEHDDIVS TVSVLSSGTQ AVSGSKDICI KVWDLAQQVV L SSYRAHAA ...String: MRKETPPPLV PPAAREWNLP PNAPACMERQ LEAARYRSDG ALLLGASSLS GRCWAGSLWL FKDPCAAPNE GFCSAGVQTE AGVADLTWV GERGILVASD SGAVELWELD ENETLIVSKF CKYEHDDIVS TVSVLSSGTQ AVSGSKDICI KVWDLAQQVV L SSYRAHAA QVTCVAASPH KDSVFLSCSE DNRILLWDTR CPKPASQIGC SAPGYLPTSL AWHPQQSEVF VFGDENGTVS LV DTKSTSC VLSSAVHSQC VTGLVFSPHS VPFLASLSED CSLAVLDSSL SELFRSQAHR DFVRDATWSP LNHSLLTTVG WDH QVVHHV VPTEPLPAPG PASVTE UniProtKB: Methylosome protein WDR77 |
-Macromolecule #3: Methylosome subunit pICln
Macromolecule | Name: Methylosome subunit pICln / type: protein_or_peptide / ID: 3 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Mus musculus (house mouse) |
Molecular weight | Theoretical: 26.038957 KDa |
Recombinant expression | Organism: Escherichia coli BL21(DE3) (bacteria) |
Sequence | String: MSFLKSFPPP GSADGLRLQQ PDTEAVLNGK GLGTGTLYIA ESRLSWLDGS GLGFSLEYPT ISLHAVSRDP NAYPQEHLYV MVNAKLGEE SKEPPSDEDE EDNDDIEPIS EFRFVPSDKS ALEAMFTAMC ECQALHPDPE DEDSDDYDGE EYDVEAHEQG Q GDIPTFYT ...String: MSFLKSFPPP GSADGLRLQQ PDTEAVLNGK GLGTGTLYIA ESRLSWLDGS GLGFSLEYPT ISLHAVSRDP NAYPQEHLYV MVNAKLGEE SKEPPSDEDE EDNDDIEPIS EFRFVPSDKS ALEAMFTAMC ECQALHPDPE DEDSDDYDGE EYDVEAHEQG Q GDIPTFYT YEEGLSHLTA EGQATLERLE GMLSQSVSSQ YNMAGVRTED SVRNYEDGME VETTPTVAGQ FEDADVDH UniProtKB: Methylosome subunit pICln |
-Macromolecule #4: U7 snRNA-associated Sm-like protein LSm11
Macromolecule | Name: U7 snRNA-associated Sm-like protein LSm11 / type: protein_or_peptide / ID: 4 / Number of copies: 4 / Enantiomer: LEVO |
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Source (natural) | Organism: Homo sapiens (human) |
Molecular weight | Theoretical: 39.572793 KDa |
Recombinant expression | Organism: Trichoplusia ni (cabbage looper) |
Sequence | String: MEERERGARS AGAGSPARPP SPRLDVSSDS FDPLLALYAP RLPPIPYPNA PCFNNVAEYE SFLRTGVRGG GRGRGRARGA AAGSGVPAA PGPSGRTRRR PDAPAPDPER IQRLRRLMVA KEEGDGAAGA GRRGPGRSRK APRNVLTRMP LHEGSPLGEL H RCIREGVK ...String: MEERERGARS AGAGSPARPP SPRLDVSSDS FDPLLALYAP RLPPIPYPNA PCFNNVAEYE SFLRTGVRGG GRGRGRARGA AAGSGVPAA PGPSGRTRRR PDAPAPDPER IQRLRRLMVA KEEGDGAAGA GRRGPGRSRK APRNVLTRMP LHEGSPLGEL H RCIREGVK VNVHIRTFKG LRGVCTGFLV AFDKFWNMAL TDVDETYRKP VLGKAYERDS SLTLTRLFDR LKLQDSSKKE AD SKSAVED STLSRYSQTS TWKLASVWGR ADTGRGSHKR SRSVPSSLQA SAREESRSEL SGRTTRTDGS SVGGTFSRAT TLS RGQSRK KKRKPKVDYQ QVFTRHINQI FIRGENVLLV HLAQ UniProtKB: U7 snRNA-associated Sm-like protein LSm11 |
-Macromolecule #5: ADENOSINE
Macromolecule | Name: ADENOSINE / type: ligand / ID: 5 / Number of copies: 4 / Formula: ADN |
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Molecular weight | Theoretical: 267.241 Da |
Chemical component information | ChemComp-ADN: |
-Experimental details
-Structure determination
Method | cryo EM |
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Processing | single particle reconstruction |
Aggregation state | particle |
-Sample preparation
Buffer | pH: 8 |
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Vitrification | Cryogen name: ETHANE |
-Electron microscopy
Microscope | FEI TITAN KRIOS |
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Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 58.2 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: 1.25 µm / Nominal defocus min: 0.8 µm |
Experimental equipment | Model: Titan Krios / Image courtesy: FEI Company |
-Image processing
Startup model | Type of model: PDB ENTRY PDB model - PDB ID: |
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Final reconstruction | Resolution.type: BY AUTHOR / Resolution: 2.83 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 754047 |
Initial angle assignment | Type: RANDOM ASSIGNMENT |
Final angle assignment | Type: RANDOM ASSIGNMENT |