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- EMDB-30491: Cryo-EM structure of the Evatanepag-bound EP2-Gs complex -

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Basic information

Entry
Database: EMDB / ID: EMD-30491
TitleCryo-EM structure of the Evatanepag-bound EP2-Gs complex
Map data
Sample
  • Complex: PGE2-bound EP2-Gs complex
    • Complex: EP2
      • Protein or peptide: Prostaglandin E2 receptor EP2 subtype
    • Complex: Nb35
      • Protein or peptide: Nanobody-35
    • Complex: Gs
      • 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
  • Ligand: 2-[3-[[(4-~{tert}-butylphenyl)methyl-pyridin-3-ylsulfonyl-amino]methyl]phenoxy]ethanoic acid
Function / homology
Function and homology information


prostaglandin E receptor activity / Prostanoid ligand receptors / response to nematode / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / renal water homeostasis / Hedgehog 'off' state ...prostaglandin E receptor activity / Prostanoid ligand receptors / response to nematode / PKA activation in glucagon signalling / hair follicle placode formation / developmental growth / D1 dopamine receptor binding / intracellular transport / renal water homeostasis / Hedgehog 'off' state / 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 / trans-Golgi network membrane / response to progesterone / negative regulation of inflammatory response to antigenic stimulus / bone development / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / Activation of the phototransduction cascade / adenylate cyclase-activating G protein-coupled receptor signaling pathway / G beta:gamma signalling through PLC beta / Presynaptic function of Kainate receptors / Thromboxane signalling through TP receptor / G protein-coupled acetylcholine receptor signaling pathway / G protein activity / G-protein activation / platelet aggregation / 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 / heterotrimeric G-protein complex / sensory perception of smell / 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 / regulation of cell population proliferation / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / G alpha (i) signalling events / fibroblast proliferation / 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 / response to lipopolysaccharide / cell population proliferation / Extra-nuclear estrogen signaling / inflammatory response / G protein-coupled receptor signaling pathway / lysosomal membrane / GTPase activity / synapse / protein-containing complex binding / GTP binding / signal transduction / extracellular exosome / membrane / metal ion binding / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Prostanoid EP2 receptor / Prostanoid receptor / G-protein alpha subunit, group S / 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. ...Prostanoid EP2 receptor / Prostanoid receptor / G-protein alpha subunit, group S / 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
Prostaglandin E2 receptor EP2 subtype / 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) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.9 Å
AuthorsQu C / Mao C / Xiao P / Shen Q / Zhong Y / Yang F / Shen D / Tao X / Zhang H / Yan X ...Qu C / Mao C / Xiao P / Shen Q / Zhong Y / Yang F / Shen D / Tao X / Zhang H / Yan X / Zhao R / He J / Guan Y / Zhang C / Hou G / Zhang P / Yu X / Sun J / Zhang Y
CitationJournal: Sci Adv / Year: 2021
Title: Ligand recognition, unconventional activation, and G protein coupling of the prostaglandin E receptor EP2 subtype.
Authors: Changxiu Qu / Chunyou Mao / Peng Xiao / Qingya Shen / Ya-Ni Zhong / Fan Yang / Dan-Dan Shen / Xiaona Tao / Huibing Zhang / Xu Yan / Ru-Jia Zhao / Junyan He / Ying Guan / Chao Zhang / Guihua ...Authors: Changxiu Qu / Chunyou Mao / Peng Xiao / Qingya Shen / Ya-Ni Zhong / Fan Yang / Dan-Dan Shen / Xiaona Tao / Huibing Zhang / Xu Yan / Ru-Jia Zhao / Junyan He / Ying Guan / Chao Zhang / Guihua Hou / Peng-Ju Zhang / Guige Hou / Zijian Li / Xiao Yu / Ren-Jie Chai / You-Fei Guan / Jin-Peng Sun / Yan Zhang /
Abstract: Selective modulation of the heterotrimeric G protein α S subunit-coupled prostaglandin E (PGE) receptor EP2 subtype is a promising therapeutic strategy for osteoporosis, ocular hypertension, ...Selective modulation of the heterotrimeric G protein α S subunit-coupled prostaglandin E (PGE) receptor EP2 subtype is a promising therapeutic strategy for osteoporosis, ocular hypertension, neurodegenerative diseases, and cardiovascular disorders. Here, we report the cryo-electron microscopy structure of the EP2-G complex with its endogenous agonist PGE and two synthesized agonists, taprenepag and evatanepag (CP-533536). These structures revealed distinct features of EP2 within the EP receptor family in terms of its unconventional receptor activation and G protein coupling mechanisms, including activation in the absence of a typical W "toggle switch" and coupling to G via helix 8. Moreover, inspection of the agonist-bound EP2 structures uncovered key motifs governing ligand selectivity. Our study provides important knowledge for agonist recognition and activation mechanisms of EP2 and will facilitate the rational design of drugs targeting the PGE signaling system.
History
DepositionSep 1, 2020-
Header (metadata) releaseMay 5, 2021-
Map releaseMay 5, 2021-
UpdateMay 5, 2021-
Current statusMay 5, 2021Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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  • Surface view colored by height
  • Surface level: 0.04
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  • Surface view with fitted model
  • Atomic models: PDB-7cx4
  • Surface level: 0.04
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_30491.png

Downloads & links

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Map

FileDownload / File: emd_30491.map.gz / Format: CCP4 / Size: 27 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
1.01 Å/pix.
x 192 pix.
= 194.688 Å		1.01 Å/pix.
x 192 pix.
= 194.688 Å		1.01 Å/pix.
x 192 pix.
= 194.688 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 1.014 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.04 / Movie #1: 0.04
Minimum - Maximum-0.25265288 - 0.40236568
Average (Standard dev.)-0.00020568512 (±0.010585724)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions192192192
Spacing192192192
CellA=B=C: 194.68802 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.0141.0141.014
M x/y/z192192192
origin x/y/z0.0000.0000.000
length x/y/z194.688194.688194.688
α/β/γ90.00090.00090.000
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS192192192
D min/max/mean-0.2530.402-0.000

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Supplemental data

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Sample components

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Entire : PGE2-bound EP2-Gs complex

EntireName: PGE2-bound EP2-Gs complex
Components
  • Complex: PGE2-bound EP2-Gs complex
    • Complex: EP2
      • Protein or peptide: Prostaglandin E2 receptor EP2 subtype
    • Complex: Nb35
      • Protein or peptide: Nanobody-35
    • Complex: Gs
      • 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
  • Ligand: 2-[3-[[(4-~{tert}-butylphenyl)methyl-pyridin-3-ylsulfonyl-amino]methyl]phenoxy]ethanoic acid

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Supramolecule #1: PGE2-bound EP2-Gs complex

SupramoleculeName: PGE2-bound EP2-Gs complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#5

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Supramolecule #2: EP2

SupramoleculeName: EP2 / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm) / Recombinant cell: sf9

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Supramolecule #3: Nb35

SupramoleculeName: Nb35 / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #5
Source (natural)Organism: synthetic construct (others)
Recombinant expressionOrganism: Escherichia coli (E. coli)

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Supramolecule #4: Gs

SupramoleculeName: Gs / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #2-#4
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)

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Macromolecule #1: Prostaglandin E2 receptor EP2 subtype

MacromoleculeName: Prostaglandin E2 receptor EP2 subtype / type: protein_or_peptide / ID: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.80043 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGNASNDSQS EDCETRQWLP PGESPAISSV MFSAGVLGNL IALALLARRW RGDVGCSAGR RSSLSLFHVL VTELVFTDLL GTCLISPVV LASYARNQTL VALAPESRAC TYFAFAMTFF SLATMLMLFA MALERYLSIG HPYFYQRRVS RSGGLAVLPV I YAVSLLFC ...String:
MGNASNDSQS EDCETRQWLP PGESPAISSV MFSAGVLGNL IALALLARRW RGDVGCSAGR RSSLSLFHVL VTELVFTDLL GTCLISPVV LASYARNQTL VALAPESRAC TYFAFAMTFF SLATMLMLFA MALERYLSIG HPYFYQRRVS RSGGLAVLPV I YAVSLLFC SLPLLDYGQY VQYCPGTWCF IRHGRTAYLQ LYATLLLLLI VSVLACNFSV ILNLIRMHRR SRRSRCGPSL GS GRGGPGA RRRGERVSMA EETDHLILLA IMTITFAVCS LPFTIFAYMN ETSSRKEKWD LQALRFLSIN SIIDPWVFAI LRP PVLRLM RSVLCCRISL RTQDATQTSC STQSDASKQA DL

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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: 45.683434 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE ...String:
MGCLGNSKTE DQRNEEKAQR EANKKIEKQL QKDKQVYRAT HRLLLLGAGE SGKNTIVKQM RILHVNGFNG EGGEEDPQAA RSNSDGEKA TKVQDIKNNL KEAIETIVAA MSNLVPPVEL ANPENQFRVD YILSVMNVPD FDFPPEFYEH AKALWEDEGV R ACYERSNE YQLIDCAQYF LDKIDVIKQA DYVPSDQDLL RCRVLTSGIF ETKFQVDKVN FHMFDVGAQR DERRKWIQCF ND VTAIIFV VASSSYNMVI REDNQTNRLQ AALKLFDSIW NNKWLRDTSV ILFLNKQDLL AEKVLAGKSK IEDYFPEFAR YTT PEDATP EPGEDPRVTR AKYFIRDEFL RISTASGDGR HYCYPHFTCA VDTENIRRVF NDCRDIIQRM HLRQYELL

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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: 39.48916 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHLEV LFQGPGSSQS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR ...String:
MHHHHHHLEV LFQGPGSSQS ELDQLRQEAE QLKNQIRDAR KACADATLSQ ITNNIDPVGR IQMRTRRTLR GHLAKIYAMH WGTDSRLLV SASQDGKLII WDSYTTNKVH AIPLRSSWVM TCAYAPSGNY VACGGLDNIC SIYNLKTREG NVRVSRELAG H TGYLSCCR FLDDNQIVTS SGDTTCALWD IETGQQTTTF TGHTGDVMSL SLAPDTRLFV SGACDASAKL WDVREGMCRQ TF TGHESDI NAICFFPNGN AFATGSDDAT CRLFDLRADQ ELMTYSHDNI ICGITSVSFS KSGRLLLAGY DDFNCNVWDA LKA DRAGVL AGHDNRVSCL GVTDDGMAVA TGSWDSFLKI WN

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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: Nanobody-35

MacromoleculeName: Nanobody-35 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 13.885439 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
QVQLQESGGG LVQPGGSLRL SCAASGFTFS NYKMNWVRQA PGKGLEWVSD ISQSGASISY TGSVKGRFTI SRDNAKNTLY LQMNSLKPE DTAVYYCARC PAPFTRDCFD VTSTTYAYRG QGTQVTVSS

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Macromolecule #6: 2-[3-[[(4-~{tert}-butylphenyl)methyl-pyridin-3-ylsulfonyl-amino]m...

MacromoleculeName: 2-[3-[[(4-~{tert}-butylphenyl)methyl-pyridin-3-ylsulfonyl-amino]methyl]phenoxy]ethanoic acid
type: ligand / ID: 6 / Number of copies: 1 / Formula: GM9
Molecular weightTheoretical: 468.565 Da
Chemical component information

ChemComp-GM9:
2-[3-[[(4-~{tert}-butylphenyl)methyl-pyridin-3-ylsulfonyl-amino]methyl]phenoxy]ethanoic acid

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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

Concentration5.0 mg/mL
BufferpH: 7.5
GridModel: Quantifoil / Material: GOLD / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE / Instrument: FEI VITROBOT MARK IV

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number real images: 2514 / Average electron dose: 64.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsCalibrated magnification: 49310 / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal magnification: 29000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Particle selectionNumber selected: 1836927
CTF correctionSoftware - Name: Gctf (ver. v1.18)
Final reconstructionResolution.type: BY AUTHOR / Resolution: 2.9 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: RELION (ver. 3.0-beta2) / Number images used: 238945
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

7cfm

Output model

PDB-7cx4:
Cryo-EM structure of the Evatanepag-bound EP2-Gs complex

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