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- EMDB-41840: Gaussian Mixture Models based single particle refinement - GPCR (... -
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Open data
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Basic information
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Title | Gaussian Mixture Models based single particle refinement - GPCR (Substance P bound to active human neurokinin 1 receptor in complex with miniGs399 from EMPIAR-10786) | |||||||||
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Function / homology | ![]() substance P receptor binding / substance P receptor activity / ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Similarity search - Function | |||||||||
Biological species | ![]() ![]() ![]() ![]() ![]() | |||||||||
Method | ![]() ![]() | |||||||||
![]() | Chen M | |||||||||
Funding support | ![]()
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![]() | ![]() Title: Improving resolution and resolvability of single-particle cryoEM structures using Gaussian mixture models. Authors: Muyuan Chen / Michael F Schmid / Wah Chiu / ![]() Abstract: Cryogenic electron microscopy is widely used in structural biology, but its resolution is often limited by the dynamics of the macromolecule. Here we developed a refinement protocol based on Gaussian ...Cryogenic electron microscopy is widely used in structural biology, but its resolution is often limited by the dynamics of the macromolecule. Here we developed a refinement protocol based on Gaussian mixture models that integrates particle orientation and conformation estimation and improves the alignment for flexible domains of protein structures. We demonstrated this protocol on multiple datasets, resulting in improved resolution and resolvability, locally and globally, by visual and quantitative measures. | |||||||||
History |
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Structure visualization
Supplemental images |
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Downloads & links
-EMDB archive
Map data | ![]() | 1.5 MB | ![]() | |
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Header (meta data) | ![]() ![]() | 20.1 KB 20.1 KB | Display Display | ![]() |
FSC (resolution estimation) | ![]() | 8.3 KB | Display | ![]() |
Images | ![]() | 117.5 KB | ||
Filedesc metadata | ![]() | 6.3 KB | ||
Others | ![]() ![]() | 49 MB 49 MB | ||
Archive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 8u26MC ![]() 8u28C ![]() 8u2cC M: atomic model generated by this map C: citing same article ( |
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Similar structure data | Similarity search - Function & homology ![]() |
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Links
EMDB pages | ![]() ![]() |
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Related items in Molecule of the Month |
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Map
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Voxel size | X=Y=Z: 1.146 Å | ||||||||||||||||||||
Density |
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Symmetry | Space group: 1 | ||||||||||||||||||||
Details | EMDB XML:
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-Supplemental data
-Half map: #1
File | emd_41840_half_map_1.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
-Half map: #2
File | emd_41840_half_map_2.map | ||||||||||||
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Projections & Slices |
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Density Histograms |
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Sample components
-Entire : Substance P bound to active human neurokinin 1 receptor in comple...
Entire | Name: Substance P bound to active human neurokinin 1 receptor in complex with miniGs399 |
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Components |
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-Supramolecule #1: Substance P bound to active human neurokinin 1 receptor in comple...
Supramolecule | Name: Substance P bound to active human neurokinin 1 receptor in complex with miniGs399 type: complex / ID: 1 / Parent: 0 / Macromolecule list: all Details: Reprocessing of EMPIAR-10786. Sample information is the same as EMD-24570, PDB-7RMH. |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 141 KDa |
-Macromolecule #1: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Macromolecule | Name: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 28.907684 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: NSKTEDQRNE EKAQREANKK IEKQLQKDKQ VYRATHRLLL LGADNSGKST IVKQMRILHG GSGGSGGTSG IFETKFQVDK VNFHMFDVG GQRDERRKWI QCFNDVTAII FVVDSSDYNR LQEALNLFKS IWNNRWLRTI SVILFLNKQD LLAEKVLAGK S KIEDYFPE ...String: NSKTEDQRNE EKAQREANKK IEKQLQKDKQ VYRATHRLLL LGADNSGKST IVKQMRILHG GSGGSGGTSG IFETKFQVDK VNFHMFDVG GQRDERRKWI QCFNDVTAII FVVDSSDYNR LQEALNLFKS IWNNRWLRTI SVILFLNKQD LLAEKVLAGK S KIEDYFPE FARYTTPEDA TPEPGEDPRV TRAKYFIRDE FLRISTASGD GRHYCYPHFT CAVDTENARR IFNDCRDIIQ RM HLRQYEL L UniProtKB: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short |
-Macromolecule #2: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 40.786566 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MHHHHHHLEV LFQGPEDQVD PRLIDGKGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIY AMHWGTDSRL LVSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR E GNVRVSRE ...String: MHHHHHHLEV LFQGPEDQVD PRLIDGKGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIY AMHWGTDSRL LVSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR E GNVRVSRE LAGHTGYLSC CRFLDDNQIV TSSGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KL WDVREGM CRQTFTGHES DINAICFFPN GNAFATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYD DFNCNV WDALKADRAG VLAGHDNRVS CLGVTDDGMA VATGSWDSFL KIWN UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 |
-Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
Macromolecule | Name: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 7.56375 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFC UniProtKB: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 |
-Macromolecule #4: Nanobody 35
Macromolecule | Name: Nanobody 35 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() ![]() |
Molecular weight | Theoretical: 15.398067 KDa |
Recombinant expression | Organism: ![]() ![]() ![]() |
Sequence | String: QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTRDCFD VTSTTYAYRG QGTQVTVSSG SEDQVDPRLI DGK |
-Macromolecule #5: Substance-P receptor
Macromolecule | Name: Substance-P receptor / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 47.542867 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: DYKDDDDASI DMDNVLPVDS DLSPNISTNT SEPNQFVQPA WQIVLWAAAY TVIVVTSVVG NVVVMWIILA HKRMRTVTNY FLVNLAFAE ASMAAFNTVV NFTYAVHNEW YYGLFYCKFH NFFPIAAVFA SIYSMTAVAF DRYMAIIHPL QPRLSATATK V VICVIWVL ...String: DYKDDDDASI DMDNVLPVDS DLSPNISTNT SEPNQFVQPA WQIVLWAAAY TVIVVTSVVG NVVVMWIILA HKRMRTVTNY FLVNLAFAE ASMAAFNTVV NFTYAVHNEW YYGLFYCKFH NFFPIAAVFA SIYSMTAVAF DRYMAIIHPL QPRLSATATK V VICVIWVL ALLLAFPQGY YSTTETMPSR VVCMIEWPEH PNKIYEKVYH ICVTVLIYFL PLLVIGYAYT VVGITLWASE IP GDSSDRY HEQVSAKRKV VKMMIVVVCT FAICWLPFHI FFLLPYINPD LYLKKFIQQV YLAIMWLAMS STMYNPIIYC CLN DRFRLG FKHAFRCCPF ISAGDYEGLE MKSTRYLQTQ GSVYKVSRLE TTISTVVGAH EEEPEDGPKA TPSSLDLTSN CSSR SDSKT MTESFSFSSN VLS UniProtKB: Substance-P receptor |
-Macromolecule #6: Protachykinin-1
Macromolecule | Name: Protachykinin-1 / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO |
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Source (natural) | Organism: ![]() ![]() |
Molecular weight | Theoretical: 1.350629 KDa |
Recombinant expression | Organism: ![]() ![]() |
Sequence | String: RPKPQQFFGL M UniProtKB: Protachykinin-1 |
-Experimental details
-Structure determination
Method | ![]() |
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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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Electron beam | Acceleration voltage: 300 kV / Electron source: ![]() |
Electron optics | Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD![]() |
Image recording | Film or detector model: GATAN K3 (6k x 4k) / Average electron dose: 30.0 e/Å2 |
Experimental equipment | ![]() Model: Titan Krios / Image courtesy: FEI Company |
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Image processing
-Atomic model buiding 1
Refinement | Space: REAL / Protocol: FLEXIBLE FIT |
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Output model | ![]() PDB-8u26: |