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- EMDB-36755: Structure of human C5a-desArg bound human C5aR1 in complex with Go -

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Entry
Database: EMDB / ID: EMD-36755
TitleStructure of human C5a-desArg bound human C5aR1 in complex with Go
Map data
Sample
  • Complex: human C5a-desArg bound human C5aR1 in complex with Go
    • Complex: human C5a-desArg bound human C5aR1 in complex with Go
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
      • Protein or peptide: Guanine nucleotide-binding protein G(o) subunit alpha
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
      • Protein or peptide: C5a anaphylatoxin chemotactic receptor 1
      • Protein or peptide: C5a anaphylatoxin
    • Complex: antibody
      • Protein or peptide: Antibody fragment ScFv16
KeywordsGPCR / Cell Signaling / Immune system / SIGNALING PROTEIN-IMMUNE SYSTEM complex
Function / homology
Function and homology information


complement component C5a signaling pathway / presynapse organization / regulation of tau-protein kinase activity / complement component C5a receptor activity / response to peptidoglycan / Terminal pathway of complement / membrane attack complex / sensory perception of chemical stimulus / mu-type opioid receptor binding / Activation of C3 and C5 ...complement component C5a signaling pathway / presynapse organization / regulation of tau-protein kinase activity / complement component C5a receptor activity / response to peptidoglycan / Terminal pathway of complement / membrane attack complex / sensory perception of chemical stimulus / mu-type opioid receptor binding / Activation of C3 and C5 / complement receptor mediated signaling pathway / corticotropin-releasing hormone receptor 1 binding / negative regulation of macrophage chemotaxis / vesicle docking involved in exocytosis / complement activation, alternative pathway / positive regulation of neutrophil chemotaxis / chemokine activity / G protein-coupled dopamine receptor signaling pathway / endopeptidase inhibitor activity / regulation of heart contraction / positive regulation of macrophage chemotaxis / amyloid-beta clearance / positive regulation of vascular endothelial growth factor production / cellular defense response / negative regulation of insulin secretion / complement activation, classical pathway / G protein-coupled serotonin receptor binding / positive regulation of chemokine production / muscle contraction / neutrophil chemotaxis / Peptide ligand-binding receptors / positive regulation of epithelial cell proliferation / secretory granule membrane / Regulation of Complement cascade / locomotory behavior / astrocyte activation / G protein-coupled receptor activity / microglial cell activation / mRNA transcription by RNA polymerase II / G-protein beta/gamma-subunit complex binding / Olfactory Signaling Pathway / adenylate cyclase-modulating G protein-coupled receptor signaling pathway / Activation of the phototransduction cascade / 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 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 / positive regulation of angiogenesis / sensory perception of taste / ADP signalling through P2Y purinoceptor 1 / G beta:gamma signalling through PI3Kgamma / adenylate cyclase-activating dopamine receptor signaling pathway / chemotaxis / 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 / G alpha (12/13) signalling events / extracellular vesicle / signaling receptor complex adaptor activity / Thrombin signalling through proteinase activated receptors (PARs) / apical part of cell / GTPase binding / retina development in camera-type eye / Ca2+ pathway / phospholipase C-activating G protein-coupled receptor signaling pathway / positive regulation of cytosolic calcium ion concentration / cell body / 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 / basolateral plasma membrane / G alpha (q) signalling events / Ras protein signal transduction / killing of cells of another organism / cell population proliferation / Extra-nuclear estrogen signaling / positive regulation of ERK1 and ERK2 cascade
Similarity search - Function
Anaphylatoxin chemotactic receptor, C3a/C5a1/C5a2 / : / Complement component 5, CUB domain / Formyl peptide receptor-related / Complement C3/4/5, macroglobulin domain MG1 / Macroglobulin domain MG1 / Anaphylatoxin, complement system domain / Anaphylatoxin domain signature. / Anaphylatoxin, complement system / Anaphylatoxin/fibulin ...Anaphylatoxin chemotactic receptor, C3a/C5a1/C5a2 / : / Complement component 5, CUB domain / Formyl peptide receptor-related / Complement C3/4/5, macroglobulin domain MG1 / Macroglobulin domain MG1 / Anaphylatoxin, complement system domain / Anaphylatoxin domain signature. / Anaphylatoxin, complement system / Anaphylatoxin/fibulin / Anaphylotoxin-like domain / Anaphylatoxin domain profile. / Anaphylatoxin homologous domain / Netrin C-terminal Domain / Netrin module, non-TIMP type / UNC-6/NTR/C345C module / Alpha-macroglobulin, receptor-binding / Alpha-macroglobulin, receptor-binding domain superfamily / Macroglobulin domain MG4 / Macroglobulin domain MG3 / : / A-macroglobulin receptor binding domain / Macroglobulin domain MG4 / Macroglobulin domain MG3 / A-macroglobulin receptor / Netrin domain / NTR domain profile. / Alpha-2-macroglobulin / Macroglobulin domain / Alpha-2-macroglobulin, bait region domain / Alpha-macroglobulin-like, TED domain / Alpha-2-macroglobulin family / MG2 domain / A-macroglobulin TED domain / Alpha-2-macroglobulin bait region domain / Alpha-2-Macroglobulin / Alpha-2-macroglobulin family / Tissue inhibitor of metalloproteinases-like, OB-fold / Terpenoid cyclases/protein prenyltransferase alpha-alpha toroid / G-protein alpha subunit, group I / 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 / Immunoglobulin-like fold / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Complement C5 / Guanine nucleotide-binding protein G(o) subunit alpha / C5a anaphylatoxin chemotactic receptor 1 / 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
Similarity search - Component
Biological speciesHomo sapiens (human) / Mus musculus (house mouse)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.31 Å
AuthorsYadav MK / Yadav R / Maharana J / Sarma P / Banerjee R / Shukla AK / Gati C
Funding support United Kingdom, India, 3 items
OrganizationGrant numberCountry
Wellcome TrustIA/S/20/1/504916 United Kingdom
Science and Engineering Research Board (SERB)SPR/2020/000408 India
Science and Engineering Research Board (SERB)IPA/2020/000405 India
CitationJournal: Cell / Year: 2023
Title: Molecular basis of anaphylatoxin binding, activation, and signaling bias at complement receptors.
Authors: Manish K Yadav / Jagannath Maharana / Ravi Yadav / Shirsha Saha / Parishmita Sarma / Chahat Soni / Vinay Singh / Sayantan Saha / Manisankar Ganguly / Xaria X Li / Samanwita Mohapatra / Sudha ...Authors: Manish K Yadav / Jagannath Maharana / Ravi Yadav / Shirsha Saha / Parishmita Sarma / Chahat Soni / Vinay Singh / Sayantan Saha / Manisankar Ganguly / Xaria X Li / Samanwita Mohapatra / Sudha Mishra / Htet A Khant / Mohamed Chami / Trent M Woodruff / Ramanuj Banerjee / Arun K Shukla / Cornelius Gati /
Abstract: The complement system is a critical part of our innate immune response, and the terminal products of this cascade, anaphylatoxins C3a and C5a, exert their physiological and pathophysiological ...The complement system is a critical part of our innate immune response, and the terminal products of this cascade, anaphylatoxins C3a and C5a, exert their physiological and pathophysiological responses primarily via two GPCRs, C3aR and C5aR1. However, the molecular mechanism of ligand recognition, activation, and signaling bias of these receptors remains mostly elusive. Here, we present nine cryo-EM structures of C3aR and C5aR1 activated by their natural and synthetic agonists, which reveal distinct binding pocket topologies of complement anaphylatoxins and provide key insights into receptor activation and transducer coupling. We also uncover the structural basis of a naturally occurring mechanism to dampen the inflammatory response of C5a via proteolytic cleavage of the terminal arginine and the G-protein signaling bias elicited by a peptide agonist of C3aR identified here. In summary, our study elucidates the innerworkings of the complement anaphylatoxin receptors and should facilitate structure-guided drug discovery to target these receptors in a spectrum of disorders.
History
DepositionJul 6, 2023-
Header (metadata) releaseOct 18, 2023-
Map releaseOct 18, 2023-
UpdateNov 8, 2023-
Current statusNov 8, 2023Processing site: PDBj / Status: Released

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Structure visualization

Supplemental images

emd_36755.png

Downloads & links

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Map

FileDownload / File: emd_36755.map.gz / Format: CCP4 / Size: 178 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Projections & slices

Image control

Size
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AxesZ (Sec.)Y (Row.)X (Col.)
0.92 Å/pix.
x 360 pix.
= 331.2 Å		0.92 Å/pix.
x 360 pix.
= 331.2 Å		0.92 Å/pix.
x 360 pix.
= 331.2 Å

Surface

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Images are generated by Spider.

Voxel sizeX=Y=Z: 0.92 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.06
Minimum - Maximum-1.4686193 - 2.0582511
Average (Standard dev.)-0.00009105411 (±0.019916046)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions360360360
Spacing360360360
CellA=B=C: 331.2 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: #2

Fileemd_36755_half_map_1.map
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Half map: #1

Fileemd_36755_half_map_2.map
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Sample components

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Entire : human C5a-desArg bound human C5aR1 in complex with Go

EntireName: human C5a-desArg bound human C5aR1 in complex with Go
Components
  • Complex: human C5a-desArg bound human C5aR1 in complex with Go
    • Complex: human C5a-desArg bound human C5aR1 in complex with Go
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(T) subunit beta-1
      • Protein or peptide: Guanine nucleotide-binding protein G(o) subunit alpha
      • Protein or peptide: Guanine nucleotide-binding protein G(I)/G(S)/G(O) subunit gamma-2
      • Protein or peptide: C5a anaphylatoxin chemotactic receptor 1
      • Protein or peptide: C5a anaphylatoxin
    • Complex: antibody
      • Protein or peptide: Antibody fragment ScFv16

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Supramolecule #1: human C5a-desArg bound human C5aR1 in complex with Go

SupramoleculeName: human C5a-desArg bound human C5aR1 in complex with Go / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all

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Supramolecule #2: human C5a-desArg bound human C5aR1 in complex with Go

SupramoleculeName: human C5a-desArg bound human C5aR1 in complex with Go / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#3, #5-#6
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: antibody

SupramoleculeName: antibody / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #4
Source (natural)Organism: Mus musculus (house mouse)

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Macromolecule #1: 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: 1 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 38.534062 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV ...String:
MHHHHHHGSS GSELDQLRQE AEQLKNQIRD ARKACADATL SQITNNIDPV GRIQMRTRRT LRGHLAKIYA MHWGTDSRLL VSASQDGKL IIWDSYTTNK VHAIPLRSSW VMTCAYAPSG NYVACGGLDN ICSIYNLKTR EGNVRVSREL AGHTGYLSCC R FLDDNQIV TSSGDTTCAL WDIETGQQTT TFTGHTGDVM SLSLAPDTRL FVSGACDASA KLWDVREGMC RQTFTGHESD IN AICFFPN GNAFATGSDD ATCRLFDLRA DQELMTYSHD NIICGITSVS FSKSGRLLLA GYDDFNCNVW DALKADRAGV LAG HDNRVS CLGVTDDGMA VATGSWDSFL KIWN

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

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Macromolecule #2: Guanine nucleotide-binding protein G(o) subunit alpha

MacromoleculeName: Guanine nucleotide-binding protein G(o) subunit alpha / type: protein_or_peptide / ID: 2
Details: This is a variant of Guanine nucleotide-binding protein G(o) subunit alpha called the mini G(o) alpha
Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 27.024762 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MGHHHHHHEN LYFQGTLSAE ERAALERSKA IEKNLKEDGI SAAKDVKLLL LGADNSGKST IVKQMKIIHG GSGGSGGTTG IVETHFTFK NLHFRLFDVG GQRSERKKWI HCFEDVTAII FCVDLSDYNR MHESLMLFDS ICNNKFFIDT SIILFLNKKD L FGEKIKKS ...String:
MGHHHHHHEN LYFQGTLSAE ERAALERSKA IEKNLKEDGI SAAKDVKLLL LGADNSGKST IVKQMKIIHG GSGGSGGTTG IVETHFTFK NLHFRLFDVG GQRSERKKWI HCFEDVTAII FCVDLSDYNR MHESLMLFDS ICNNKFFIDT SIILFLNKKD L FGEKIKKS PLTICFPEYT GPNTYEDAAA YIQAQFESKN RSPNKEIYCH MTCATDTNNA QVIFDAVTDI IIANNLRGCG LY

UniProtKB: Guanine nucleotide-binding protein G(o) subunit alpha, Guanine nucleotide-binding protein G(o) subunit alpha

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Macromolecule #3: 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: 3 / 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

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

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Macromolecule #4: Antibody fragment ScFv16

MacromoleculeName: Antibody fragment ScFv16 / type: protein_or_peptide / ID: 4 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Mus musculus (house mouse)
Molecular weightTheoretical: 26.466486 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
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 K

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Macromolecule #5: C5a anaphylatoxin chemotactic receptor 1

MacromoleculeName: C5a anaphylatoxin chemotactic receptor 1 / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 45.273867 KDa
Recombinant expressionOrganism: Spodoptera frugiperda (fall armyworm)
SequenceString: MGKTIIALSY IFCLVFADYK DDDDAANFTP VNGSSGNQSV RLVTSSSLEV LFQGPGSDSF NYTTPDYGHY DDKDTLDLNT PVDKTSNTL RVPDILALVI FAVVFLVGVL GNALVVWVTA FEAKRTINAI WFLNLAVADF LSCLALPILF TSIVQHHHWP F GGAACSIL ...String:
MGKTIIALSY IFCLVFADYK DDDDAANFTP VNGSSGNQSV RLVTSSSLEV LFQGPGSDSF NYTTPDYGHY DDKDTLDLNT PVDKTSNTL RVPDILALVI FAVVFLVGVL GNALVVWVTA FEAKRTINAI WFLNLAVADF LSCLALPILF TSIVQHHHWP F GGAACSIL PSLILLNMYA SILLLATISA DRFLLVFKPI WCQNFRGAGL AWIACAVAWG LALLLTIPSF LYRVVREEYF PP KVLCGVD YSHDKRRERA VAIVRLVLGF LWPLLTLTIC YTFILLRTWS RRATRSTKTL KVVVAVVASF FIFWLPYQVT GIM MSFLEP SSPTFLLLKK LDSLCVSFAY INCCINPIIY VVAGQGFQGR LRKSLPSLLR NVLTEESVVR ESKSFTRSTV DTMA QKTQA V

UniProtKB: C5a anaphylatoxin chemotactic receptor 1

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Macromolecule #6: C5a anaphylatoxin

MacromoleculeName: C5a anaphylatoxin / type: protein_or_peptide / ID: 6 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 8.288676 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
TLQKKIEEIA AKYKHSVVKK CCYDGACVNN DETCEQRAAR ISLGPRCIKA FTECCVVASQ LRANISHKDM QLGR

UniProtKB: Complement C5

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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

BufferpH: 7.4
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeTFS GLACIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 58.0 e/Å2
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 3.0 µm / Nominal defocus min: 0.8 µm

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Image processing

Startup modelType of model: PDB ENTRY
PDB model - PDB ID:

8ia2

Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 3.31 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 4.0) / Number images used: 860786
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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Atomic model buiding 1

Initial modelPDB ID:

8ia2


Chain - Source name: PDB / Chain - Initial model type: experimental model
RefinementSpace: REAL / Protocol: FLEXIBLE FIT
Output model

PDB-8jzz:
Structure of human C5a-desArg bound human C5aR1 in complex with Go

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