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- EMDB-11927: Melanocortin receptor 4 (MC4R) Gs protein complex -

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Basic information

Entry
Database: EMDB / ID: EMD-11927
TitleMelanocortin receptor 4 (MC4R) Gs protein complex
Map data
Sample
  • Complex: Melanocortine 4 (MC4R) - GalphaS protein comlex
    • Complex: Melanocortine 4 (MC4R) - GalphaS protein comlex
      • Protein or peptide: Melanocortin receptor 4
      • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Complex: scFv16
      • Protein or peptide: scFv16
    • Complex: AMINOSERINE
      • Protein or peptide: AMINOSERINE
  • Ligand: CALCIUM ION
  • Ligand: water
Function / homology
Function and homology information


regulation of eating behavior / melanocyte-stimulating hormone receptor activity / response to melanocyte-stimulating hormone / melanocortin receptor activity / regulation of grooming behavior / energy reserve metabolic process / neuropeptide binding / feeding behavior / regulation of metabolic process / insulin secretion ...regulation of eating behavior / melanocyte-stimulating hormone receptor activity / response to melanocyte-stimulating hormone / melanocortin receptor activity / regulation of grooming behavior / energy reserve metabolic process / neuropeptide binding / feeding behavior / regulation of metabolic process / insulin secretion / negative regulation of feeding behavior / diet induced thermogenesis / PKA activation in glucagon signalling / peptide hormone binding / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / positive regulation of bone resorption / renal water homeostasis / Hedgehog 'off' state / Transcriptional and post-translational regulation of MITF-M expression and activity / adenylate cyclase-activating adrenergic receptor signaling pathway / activation of adenylate cyclase activity / cellular response to glucagon stimulus / adenylate cyclase activator activity / regulation of insulin secretion / Peptide ligand-binding receptors / trans-Golgi network membrane / negative regulation of inflammatory response to antigenic stimulus / response to insulin / bone development / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / adenylate cyclase-activating G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / G protein activity / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / platelet aggregation / G-protein activation / Activation of G protein gated Potassium channels / Inhibition of voltage gated Ca2+ channels via Gbeta/gamma subunits / Prostacyclin signalling through prostacyclin receptor / Glucagon signaling in metabolic regulation / G beta:gamma signalling through CDC42 / cognition / G beta:gamma signalling through BTK / ADP signalling through P2Y purinoceptor 12 / Sensory perception of sweet, bitter, and umami (glutamate) taste / Synthesis, secretion, and inactivation of Glucagon-like Peptide-1 (GLP-1) / photoreceptor disc membrane / Glucagon-type ligand receptors / Adrenaline,noradrenaline inhibits insulin secretion / Vasopressin regulates renal water homeostasis via Aquaporins / G alpha (z) signalling events / Glucagon-like Peptide-1 (GLP1) regulates insulin secretion / cellular response to catecholamine stimulus / ADORA2B mediated anti-inflammatory cytokines production / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / Cooperation of PDCL (PhLP1) and TRiC/CCT in G-protein beta folding / GPER1 signaling / cellular response to prostaglandin E stimulus / Inactivation, recovery and regulation of the phototransduction cascade / G-protein beta-subunit binding / sensory perception of smell / heterotrimeric G-protein complex / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / GTPase binding / positive regulation of cold-induced thermogenesis / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / fibroblast proliferation / G alpha (i) signalling events / G alpha (s) signalling events / Hydrolases; Acting on acid anhydrides; Acting on GTP to facilitate cellular and subcellular movement / G alpha (q) signalling events / Ras protein signal transduction / cell population proliferation / Extra-nuclear estrogen signaling / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / ubiquitin protein ligase binding / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / membrane
Similarity search - Function
Melanocortin 4 receptor / Melanocortin receptor 3-5 / Melanocortin/ACTH receptor / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit ...Melanocortin 4 receptor / Melanocortin receptor 3-5 / Melanocortin/ACTH receptor / G-protein alpha subunit, group S / Serpentine type 7TM GPCR chemoreceptor Srsx / Guanine nucleotide binding protein (G-protein), alpha subunit / G protein alpha subunit, helical insertion / G-protein alpha subunit / G-alpha domain profile. / G protein alpha subunit / G-protein, gamma subunit / G-protein gamma subunit domain profile. / G-protein gamma-like domain / G-protein gamma-like domain superfamily / GGL domain / G protein gamma subunit-like motifs / GGL domain / Guanine nucleotide-binding protein, beta subunit / G-protein, beta subunit / G-protein coupled receptors family 1 signature. / G protein-coupled receptor, rhodopsin-like / GPCR, rhodopsin-like, 7TM / G-protein coupled receptors family 1 profile. / 7 transmembrane receptor (rhodopsin family) / G-protein beta WD-40 repeat / WD40 repeat, conserved site / Trp-Asp (WD) repeats signature. / Trp-Asp (WD) repeats profile. / Trp-Asp (WD) repeats circular profile. / WD domain, G-beta repeat / WD40 repeats / WD40 repeat / WD40-repeat-containing domain superfamily / WD40/YVTN repeat-like-containing domain superfamily / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Melanocortin receptor 4 / Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2 / Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1 / Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
Similarity search - Component
Biological speciesHomo sapiens (human) / Mus musculus (house mouse) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.97 Å
AuthorsDegtjarik O / Israeli H / Prabahar V / Shalev-Benami M
CitationJournal: Science / Year: 2021
Title: Structure reveals the activation mechanism of the MC4 receptor to initiate satiation signaling.
Authors: Hadar Israeli / Oksana Degtjarik / Fabrizio Fierro / Vidicha Chunilal / Amandeep Kaur Gill / Nicolas J Roth / Joaquin Botta / Vadivel Prabahar / Yoav Peleg / Li F Chan / Danny Ben-Zvi / ...Authors: Hadar Israeli / Oksana Degtjarik / Fabrizio Fierro / Vidicha Chunilal / Amandeep Kaur Gill / Nicolas J Roth / Joaquin Botta / Vadivel Prabahar / Yoav Peleg / Li F Chan / Danny Ben-Zvi / Peter J McCormick / Masha Y Niv / Moran Shalev-Benami /
Abstract: Obesity is a global epidemic that causes morbidity and impaired quality of life. The melanocortin receptor 4 (MC4R) is at the crux of appetite, energy homeostasis, and body-weight control in the ...Obesity is a global epidemic that causes morbidity and impaired quality of life. The melanocortin receptor 4 (MC4R) is at the crux of appetite, energy homeostasis, and body-weight control in the central nervous system and is a prime target for anti-obesity drugs. Here, we present the cryo-electron microscopy (cryo-EM) structure of the human MC4R-G signaling complex bound to the agonist setmelanotide, a cyclic peptide recently approved for the treatment of obesity. The work reveals the mechanism of MC4R activation, highlighting a molecular switch that initiates satiation signaling. In addition, our findings indicate that calcium (Ca) is required for agonist, but not antagonist, efficacy. These results fill a gap in the understanding of MC4R activation and could guide the design of future weight-management drugs.
History
DepositionNov 2, 2020-
Header (metadata) releaseApr 28, 2021-
Map releaseApr 28, 2021-
UpdateMar 15, 2023-
Current statusMar 15, 2023Processing site: PDBe / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.03
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.03
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7aue
  • Surface level: 0.03
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_11927.png

Downloads & links

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Map

FileDownload / File: emd_11927.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.86 Å/pix.
x 280 pix.
= 240.8 Å		0.86 Å/pix.
x 280 pix.
= 240.8 Å		0.86 Å/pix.
x 280 pix.
= 240.8 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.86 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.03 / Movie #1: 0.03
Minimum - Maximum-0.08467538 - 0.13791774
Average (Standard dev.)5.6400386e-05 (±0.004564045)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 240.8 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.860.860.86
M x/y/z280280280
origin x/y/z0.0000.0000.000
length x/y/z240.800240.800240.800
α/β/γ90.00090.00090.000
start NX/NY/NZ727265
NX/NY/NZ157157169
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS280280280
D min/max/mean-0.0850.1380.000

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Supplemental data

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Additional map: #1

Fileemd_11927_additional_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : Melanocortine 4 (MC4R) - GalphaS protein comlex

EntireName: Melanocortine 4 (MC4R) - GalphaS protein comlex
Components
  • Complex: Melanocortine 4 (MC4R) - GalphaS protein comlex
    • Complex: Melanocortine 4 (MC4R) - GalphaS protein comlex
      • Protein or peptide: Melanocortin receptor 4
      • Protein or peptide: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
    • Complex: scFv16
      • Protein or peptide: scFv16
    • Complex: AMINOSERINE
      • Protein or peptide: AMINOSERINE
  • Ligand: CALCIUM ION
  • Ligand: water

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Supramolecule #1: Melanocortine 4 (MC4R) - GalphaS protein comlex

SupramoleculeName: Melanocortine 4 (MC4R) - GalphaS protein comlex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5

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Supramolecule #2: Melanocortine 4 (MC4R) - GalphaS protein comlex

SupramoleculeName: Melanocortine 4 (MC4R) - GalphaS protein comlex / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#4
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: scFv16

SupramoleculeName: scFv16 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #5
Source (natural)Organism: Mus musculus (house mouse)

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Supramolecule #4: AMINOSERINE

SupramoleculeName: AMINOSERINE / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #6
Source (natural)Organism: synthetic construct (others)

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Macromolecule #1: Melanocortin receptor 4

MacromoleculeName: Melanocortin receptor 4 / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 38.972852 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MVNSTHRGMH TSLHLWNRSS YRLHSNASES LGKGYSDGGC YEQLFVSPEV FVTLGVISLL ENILVIVAIA KNKNLHSPMY FFICSLAVA DMLVSVSNGS ETIVITLLNS TDTDAQSFTV NIDNVIDSVI CSSLLASICS LLSIAVDRYF TIFYALQYHN I MTVKRVGI ...String:
MVNSTHRGMH TSLHLWNRSS YRLHSNASES LGKGYSDGGC YEQLFVSPEV FVTLGVISLL ENILVIVAIA KNKNLHSPMY FFICSLAVA DMLVSVSNGS ETIVITLLNS TDTDAQSFTV NIDNVIDSVI CSSLLASICS LLSIAVDRYF TIFYALQYHN I MTVKRVGI IISCIWAACT VSGILFIIYS DSSAVIICLI TMFFTMLALM ASLYVHMFLM ARLHIKRIAV LPGTGAIRQG AN MKGAITL TILIGVFVVC WAPFFLHLIF YISCPQNPYC VCFMSHFNLY LILIMCNSII DPLIYALRSQ ELRKTFKEII CCY PLGGLC DLSSRYLEVL FQGPSGSGHH HHHH

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Macromolecule #2: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short

MacromoleculeName: Guanine nucleotide-binding protein G(s) subunit alpha isoforms short
type: protein_or_peptide / ID: 2 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 43.194902 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCTLSAEDK AAVERSKMID RNLREDGEKA AATHRLLLLG AGESGKSTIV KQMRILHVNG FNGDSEKATK VQDIKNNLKE AIETIVAAM SNLVPPVELA NPENQFRVDY ILSVMNVPDF DFPPEFYEHA KALWEDEGVR ACYERSNEYQ LIDCAQYFLD K IDVIKQAD ...String:
MGCTLSAEDK AAVERSKMID RNLREDGEKA AATHRLLLLG AGESGKSTIV KQMRILHVNG FNGDSEKATK VQDIKNNLKE AIETIVAAM SNLVPPVELA NPENQFRVDY ILSVMNVPDF DFPPEFYEHA KALWEDEGVR ACYERSNEYQ LIDCAQYFLD K IDVIKQAD YVPSDQDLLR CRVLTSGIFE TKFQVDKVNF HMFDVGGQRD ERRKWIQCFN DVTAIIFVVA SSSYNMVIRE DN QTNRLQE ALNLFKSIWN NRWLRTISVI LFLNKQDLLA EKVLAGKSKI EDYFPEFARY TTPEDATPEP GEDPRVTRAK YFI RDEFLR ISTASGDGRH YCYPHFTCAV DTENIRRVFN DCRDIIQRMH LRQYELL

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Macromolecule #3: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
type: protein_or_peptide / ID: 3 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.286891 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: HHHHHHLEVL FQGPGSSGSE LDQLRQEAEQ LKNQIRDARK ACADATLSQI TNNIDPVGRI QMRTRRTLRG HLAKIYAMHW GTDSRLLVS ASQDGKLIIW DSYTTNKVHA IPLRSSWVMT CAYAPSGNYV ACGGLDNICS IYNLKTREGN VRVSRELAGH T GYLSCCRF ...String:
HHHHHHLEVL FQGPGSSGSE LDQLRQEAEQ LKNQIRDARK ACADATLSQI TNNIDPVGRI QMRTRRTLRG HLAKIYAMHW GTDSRLLVS ASQDGKLIIW DSYTTNKVHA IPLRSSWVMT CAYAPSGNYV ACGGLDNICS IYNLKTREGN VRVSRELAGH T GYLSCCRF LDDNQIVTSS GDTTCALWDI ETGQQTTTFT GHTGDVMSLS LAPDTRLFVS GACDASAKLW DVREGMCRQT FT GHESDIN AICFFPNGNA FATGSDDATC RLFDLRADQE LMTYSHDNII CGITSVSFSK SGRLLLAGYD DFNCNVWDAL KAD RAGVLA GHDNRVSCLG VTDDGMAVAT GSWDSFLKIW N

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Macromolecule #4: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2

MacromoleculeName: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 7.861143 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString:
MASNNTASIA QARKLVEQLK MEANIDRIKV SKAAADLMAY CEAHAKEDPL LTPVPASENP FREKKFFCAI L

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Macromolecule #5: scFv16

MacromoleculeName: scFv16 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 27.340482 KDa
Recombinant expressionOrganism: Trichoplusia ni (cabbage looper)
SequenceString: DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS ...String:
DVQLVESGGG LVQPGGSRKL SCSASGFAFS SFGMHWVRQA PEKGLEWVAY ISSGSGTIYY ADTVKGRFTI SRDDPKNTLF LQMTSLRSE DTAMYYCVRS IYYYGSSPFD FWGQGTTLTV SSGGGGSGGG GSGGGGSDIV MTQATSSVPV TPGESVSISC R SSKSLLHS NGNTYLYWFL QRPGQSPQLL IYRMSNLASG VPDRFSGSGS GTAFTLTISR LEAEDVGVYY CMQHLEYPLT FG AGTKLEL KGSLEVLFQ

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Macromolecule #6: AMINOSERINE

MacromoleculeName: AMINOSERINE / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 1.106349 KDa
SequenceString:
(ACE)RC(DAL)H(DPN)RW(CY3)

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Macromolecule #7: CALCIUM ION

MacromoleculeName: CALCIUM ION / type: ligand / ID: 7 / Number of copies: 1 / Formula: CA
Molecular weightTheoretical: 40.078 Da

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Macromolecule #8: water

MacromoleculeName: water / type: ligand / ID: 8 / Number of copies: 1 / Formula: HOH
Molecular weightTheoretical: 18.015 Da
Chemical component information

ChemComp-HOH:
WATER

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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

Concentration14 mg/mL
BufferpH: 7.5
GridModel: Quantifoil R1.2/1.3 / Material: GOLD / Mesh: 200 / Pretreatment - Type: GLOW DISCHARGE
VitrificationCryogen name: ETHANE / Chamber humidity: 100 % / Chamber temperature: 295 K / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K3 BIOQUANTUM (6k x 4k) / Average electron dose: 45.5 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 100.0 µm / Illumination mode: OTHER / Imaging mode: BRIGHT FIELD
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: PDB ENTRY / Details: 6W25, 6N4B
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.97 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 366496
Initial angle assignmentType: OTHER
Final angle assignmentType: OTHER

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