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- EMDB-9841: eIF2(aP) - eIF2B complex -

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Basic information

Entry
Database: EMDB / ID: EMD-9841
TitleeIF2(aP) - eIF2B complex
Map data
Sample
  • Complex: eIF2(aP) - eIF2B
    • Complex: eIF2B
      • Protein or peptide: Translation initiation factor eIF-2B subunit alpha
      • Protein or peptide: Translation initiation factor eIF-2B subunit beta
      • Protein or peptide: Translation initiation factor eIF-2B subunit gamma
      • Protein or peptide: Translation initiation factor eIF-2B subunit delta
      • Protein or peptide: Translation initiation factor eIF-2B subunit epsilon
    • Complex: eIF2(aP)
      • Protein or peptide: Eukaryotic translation initiation factor 2 subunit 1
      • Protein or peptide: eIF2b
      • Protein or peptide: Eukaryotic translation initiation factor 2 subunit 3
Function / homology
Function and homology information


male germ cell proliferation / regulation of translation in response to endoplasmic reticulum stress / translation initiation ternary complex / glial limiting end-foot / response to kainic acid / response to manganese-induced endoplasmic reticulum stress / positive regulation of type B pancreatic cell apoptotic process / methionyl-initiator methionine tRNA binding / eukaryotic translation initiation factor 2B complex / Response of EIF2AK1 (HRI) to heme deficiency ...male germ cell proliferation / regulation of translation in response to endoplasmic reticulum stress / translation initiation ternary complex / glial limiting end-foot / response to kainic acid / response to manganese-induced endoplasmic reticulum stress / positive regulation of type B pancreatic cell apoptotic process / methionyl-initiator methionine tRNA binding / eukaryotic translation initiation factor 2B complex / Response of EIF2AK1 (HRI) to heme deficiency / negative regulation of translational initiation in response to stress / Recycling of eIF2:GDP / PERK-mediated unfolded protein response / eukaryotic translation initiation factor 2 complex / PERK regulates gene expression / regulation of translational initiation in response to stress / cytoplasmic translational initiation / translation factor activity, RNA binding / protein-synthesizing GTPase / oligodendrocyte development / formation of cytoplasmic translation initiation complex / formation of translation preinitiation complex / guanyl-nucleotide exchange factor complex / astrocyte development / eukaryotic 48S preinitiation complex / : / astrocyte differentiation / Formation of the ternary complex, and subsequently, the 43S complex / regulation of translational initiation / Ribosomal scanning and start codon recognition / Translation initiation complex formation / positive regulation of translational initiation / Response of EIF2AK4 (GCN2) to amino acid deficiency / GTP hydrolysis and joining of the 60S ribosomal subunit / L13a-mediated translational silencing of Ceruloplasmin expression / response to glucose / stress granule assembly / translation initiation factor binding / ovarian follicle development / translational initiation / cellular response to amino acid starvation / myelination / translation initiation factor activity / response to endoplasmic reticulum stress / guanyl-nucleotide exchange factor activity / central nervous system development / hippocampus development / PKR-mediated signaling / ABC-family proteins mediated transport / response to peptide hormone / cytoplasmic stress granule / male gonad development / cellular response to UV / ribosome binding / regulation of translation / cellular response to heat / cellular response to oxidative stress / response to heat / T cell receptor signaling pathway / in utero embryonic development / cadherin binding / positive regulation of apoptotic process / mRNA binding / GTPase activity / synapse / GTP binding / RNA binding / extracellular exosome / ATP binding / membrane / identical protein binding / metal ion binding / nucleus / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Translation initiation factor eIF-2B subunit alpha, N-terminal / Translation initiation factor eIF-2B subunit epsilon, N-terminal / Translation initiation factor eIF-2B subunit epsilon, W2 domain / Translation initiation factor IF2/IF5 / Translation initiation factor IF2/IF5 domain / Translation initiation factor IF2/IF5, N-terminal / Translation initiation factor IF2/IF5, zinc-binding / Domain found in IF2B/IF5 / domain present in translation initiation factor eIF2B and eIF5 / Initiation factor 2B-related ...Translation initiation factor eIF-2B subunit alpha, N-terminal / Translation initiation factor eIF-2B subunit epsilon, N-terminal / Translation initiation factor eIF-2B subunit epsilon, W2 domain / Translation initiation factor IF2/IF5 / Translation initiation factor IF2/IF5 domain / Translation initiation factor IF2/IF5, N-terminal / Translation initiation factor IF2/IF5, zinc-binding / Domain found in IF2B/IF5 / domain present in translation initiation factor eIF2B and eIF5 / Initiation factor 2B-related / Initiation factor 2B-like, C-terminal / Initiation factor 2 subunit family / eIF4-gamma/eIF5/eIF2-epsilon / Domain at the C-termini of GCD6, eIF-2B epsilon, eIF-4 gamma and eIF-5 / W2 domain / W2 domain profile. / IF2a, S1-like domain / Translation initiation factor 2, alpha subunit / Translation initiation factor 2, alpha subunit, middle domain superfamily / Translation initiation factor 2, alpha subunit, C-terminal / Eukaryotic translation initiation factor 2 alpha subunit / Initiation factor eIF2 gamma, domain 2 / Initiation factor eIF2 gamma, GTP-binding domain / Initiation factor eIF2 gamma, C-terminal / Initiation factor eIF2 gamma, C terminal / Nucleotidyl transferase domain / Nucleotidyl transferase / NagB/RpiA transferase-like / Translation elongation factor EF1A/initiation factor IF2gamma, C-terminal / Trimeric LpxA-like superfamily / S1 domain profile. / Translation elongation factor EFTu-like, domain 2 / Elongation factor Tu domain 2 / Ribosomal protein S1-like RNA-binding domain / S1 RNA binding domain / S1 domain / Translational (tr)-type GTP-binding domain / Elongation factor Tu GTP binding domain / Translational (tr)-type guanine nucleotide-binding (G) domain profile. / Nucleotide-diphospho-sugar transferases / Translation protein, beta-barrel domain superfamily / Armadillo-type fold / Nucleic acid-binding, OB-fold / P-loop containing nucleoside triphosphate hydrolase
Similarity search - Domain/homology
Eukaryotic translation initiation factor 2 subunit 1 / Eukaryotic translation initiation factor 2 subunit 2 / Eukaryotic translation initiation factor 2 subunit 3 / Translation initiation factor eIF2B subunit beta / Translation initiation factor eIF2B subunit epsilon / Translation initiation factor eIF2B subunit alpha / Translation initiation factor eIF2B subunit gamma / Translation initiation factor eIF2B subunit delta
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.6 Å
AuthorsKashiwagi K / Yokoyama T / Ito T
Funding support Japan, 2 items
OrganizationGrant numberCountry
Japan Society for the Promotion of Science Japan
Japan Agency for Medical Research and Development (AMED) Japan
CitationJournal: Science / Year: 2019
Title: Structural basis for eIF2B inhibition in integrated stress response.
Authors: Kazuhiro Kashiwagi / Takeshi Yokoyama / Madoka Nishimoto / Mari Takahashi / Ayako Sakamoto / Mayumi Yonemochi / Mikako Shirouzu / Takuhiro Ito /
Abstract: A core event in the integrated stress response, an adaptive pathway common to all eukaryotic cells in response to various stress stimuli, is the phosphorylation of eukaryotic translation initiation ...A core event in the integrated stress response, an adaptive pathway common to all eukaryotic cells in response to various stress stimuli, is the phosphorylation of eukaryotic translation initiation factor 2 (eIF2). Normally, unphosphorylated eIF2 transfers the methionylated initiator tRNA to the ribosome in a guanosine 5'-triphosphate-dependent manner. By contrast, phosphorylated eIF2 inhibits its specific guanine nucleotide exchange factor, eIF2B. To elucidate how the eIF2 phosphorylation status regulates the eIF2B activity, we determined cryo-electron microscopic and crystallographic structures of eIF2B in complex with unphosphorylated or phosphorylated eIF2. The unphosphorylated and phosphorylated forms of eIF2 bind to eIF2B in completely different manners: the nucleotide exchange-active and -inactive modes, respectively. These structures explain how phosphorylated eIF2 dominantly inhibits the nucleotide exchange activity of eIF2B.
History
DepositionMar 7, 2019-
Header (metadata) releaseMay 1, 2019-
Map releaseMay 1, 2019-
UpdateFeb 12, 2020-
Current statusFeb 12, 2020Processing site: PDBj / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.018
  • Imaged by UCSF Chimera
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  • Surface view colored by radius
  • Surface level: 0.018
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-6k72
  • Surface level: 0.018
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_9841.png

Downloads & links

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Map

FileDownload / File: emd_9841.map.gz / Format: CCP4 / Size: 59.6 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Voxel sizeX=Y=Z: 1.47 Å
Density
Contour LevelBy AUTHOR: 0.0104 / Movie #1: 0.018
Minimum - Maximum-0.05230381 - 0.07943972
Average (Standard dev.)0.0000036266 (±0.002943248)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions250250250
Spacing250250250
CellA=B=C: 367.5 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.471.471.47
M x/y/z250250250
origin x/y/z0.0000.0000.000
length x/y/z367.500367.500367.500
α/β/γ90.00090.00090.000
start NX/NY/NZ-38-19-20
NX/NY/NZ858082
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS250250250
D min/max/mean-0.0520.0790.000

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Supplemental data

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Sample components

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Entire : eIF2(aP) - eIF2B

EntireName: eIF2(aP) - eIF2B
Components
  • Complex: eIF2(aP) - eIF2B
    • Complex: eIF2B
      • Protein or peptide: Translation initiation factor eIF-2B subunit alpha
      • Protein or peptide: Translation initiation factor eIF-2B subunit beta
      • Protein or peptide: Translation initiation factor eIF-2B subunit gamma
      • Protein or peptide: Translation initiation factor eIF-2B subunit delta
      • Protein or peptide: Translation initiation factor eIF-2B subunit epsilon
    • Complex: eIF2(aP)
      • Protein or peptide: Eukaryotic translation initiation factor 2 subunit 1
      • Protein or peptide: eIF2b
      • Protein or peptide: Eukaryotic translation initiation factor 2 subunit 3

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Supramolecule #1: eIF2(aP) - eIF2B

SupramoleculeName: eIF2(aP) - eIF2B / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all

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Supramolecule #2: eIF2B

SupramoleculeName: eIF2B / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#5
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli (E. coli)

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Supramolecule #3: eIF2(aP)

SupramoleculeName: eIF2(aP) / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #6-#8
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Homo sapiens (human)

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Macromolecule #1: Translation initiation factor eIF-2B subunit alpha

MacromoleculeName: Translation initiation factor eIF-2B subunit alpha / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 33.754148 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MDDKELIEYF KSQMKEDPDM ASAVAAIRTL LEFLKRDKGE TIQGLRANLT SAIETLCGVD SSVAVSSGGE LFLRFISLAS LEYSDYSKC KKIMIERGEL FLRRISLSRN KIADLCHTFI KDGATILTHA YSRVVLRVLE AAVAAKKRFS VYVTESQPDL S GKKMAKAL ...String:
MDDKELIEYF KSQMKEDPDM ASAVAAIRTL LEFLKRDKGE TIQGLRANLT SAIETLCGVD SSVAVSSGGE LFLRFISLAS LEYSDYSKC KKIMIERGEL FLRRISLSRN KIADLCHTFI KDGATILTHA YSRVVLRVLE AAVAAKKRFS VYVTESQPDL S GKKMAKAL CHLNVPVTVV LDAAVGYIME KADLVIVGAE GVVENGGIIN KIGTNQMAVC AKAQNKPFYV VAESFKFVRL FP LNQQDVP DKFKYKADTL KVAQTGQDLK EEHPWVDYTA PSLITLLFTD LGVLTPSAVS DELIKLYL

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Macromolecule #2: Translation initiation factor eIF-2B subunit beta

MacromoleculeName: Translation initiation factor eIF-2B subunit beta / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 39.039547 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MPGSAAKGSE LSERIESFVE TLKRGGGPRS SEEMARETLG LLRQIITDHR WSNAGELMEL IRREGRRMTA AQPSETTVGN MVRRVLKII REEYGRLHGR SDESDQQESL HKLLTSGGLN EDFSFHYAQL QSNIIEAINE LLVELEGTME NIAAQALEHI H SNEVIMTI ...String:
MPGSAAKGSE LSERIESFVE TLKRGGGPRS SEEMARETLG LLRQIITDHR WSNAGELMEL IRREGRRMTA AQPSETTVGN MVRRVLKII REEYGRLHGR SDESDQQESL HKLLTSGGLN EDFSFHYAQL QSNIIEAINE LLVELEGTME NIAAQALEHI H SNEVIMTI GFSRTVEAFL KEAARKRKFH VIVAECAPFC QGHEMAVNLS KAGIETTVMT DAAIFAVMSR VNKVIIGTKT IL ANGALRA VTGTHTLALA AKHHSTPLIV CAPMFKLSPQ FPNEEDSFHK FVAPEEVLPF TEGDILEKVS VHCPVFDYVP PEL ITLFIS NIGGNAPSYI YRLMSELYHP DDHVL

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Macromolecule #3: Translation initiation factor eIF-2B subunit gamma

MacromoleculeName: Translation initiation factor eIF-2B subunit gamma / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 50.30423 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MEFQAVVMAV GGGSRMTDLT SSIPKPLLPV GNKPLIWYPL NLLERVGFEE VIVVTTRDVQ KALCAEFKMK MKPDIVCIPD DADMGTADS LRYIYPKLKT DVLVLSCDLI TDVALHEVVD LFRAYDASLA MLMRKGQDSI EPVPGQKGKK KAVEQRDFIG V DSTGKRLL ...String:
MEFQAVVMAV GGGSRMTDLT SSIPKPLLPV GNKPLIWYPL NLLERVGFEE VIVVTTRDVQ KALCAEFKMK MKPDIVCIPD DADMGTADS LRYIYPKLKT DVLVLSCDLI TDVALHEVVD LFRAYDASLA MLMRKGQDSI EPVPGQKGKK KAVEQRDFIG V DSTGKRLL FMANEADLDE ELVIKGSILQ KHPRIRFHTG LVDAHLYCLK KYIVDFLMEN GSITSIRSEL IPYLVRKQFS SA SSQQGQE EKEEDLKKKE LKSLDIYSFI KEANTLNLAP YDACWNACRG DRWEDLSRSQ VRCYVHIMKE GLCSRVSTLG LYM EANRQV PKLLSALCPE EPPVHSSAQI VSKHLVGVDS LIGPETQIGE KSSIKRSVIG SSCLIKDRVT ITNCLLMNSV TVEE GSNIQ GSVICNNAVI EKGADIKDCL IGSGQRIEAK AKRVNEVIVG NDQLMEI

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Macromolecule #4: Translation initiation factor eIF-2B subunit delta

MacromoleculeName: Translation initiation factor eIF-2B subunit delta / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 57.640168 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MAAVAVAVRE DSGSGMKAEL PPGPGAVGRE MTKEEKLQLR KEKKQQKKKR KEEKGAEPET GSAVSAAQCQ VGPTRELPES GIQLGTPRE KVPAGRSKAE LRAERRAKQE AERALKQARK GEQGGPPPKA SPSTAGETPS GVKRLPEYPQ VDDLLLRRLV K KPERQQVP ...String:
MAAVAVAVRE DSGSGMKAEL PPGPGAVGRE MTKEEKLQLR KEKKQQKKKR KEEKGAEPET GSAVSAAQCQ VGPTRELPES GIQLGTPRE KVPAGRSKAE LRAERRAKQE AERALKQARK GEQGGPPPKA SPSTAGETPS GVKRLPEYPQ VDDLLLRRLV K KPERQQVP TRKDYGSKVS LFSHLPQYSR QNSLTQFMSI PSSVIHPAMV RLGLQYSQGL VSGSNARCIA LLRALQQVIQ DY TTPPNEE LSRDLVNKLK PYMSFLTQCR PLSASMHNAI KFLNKEITSV GSSKREEEAK SELRAAIDRY VQEKIVLAAQ AIS RFAYQK ISNGDVILVY GCSSLVSRIL QEAWTEGRRF RVVVVDSRPW LEGRHTLRSL VHAGVPASYL LIPAASYVLP EVSK VLLGA HALLANGSVM SRVGTAQLAL VARAHNVPVL VCCETYKFCE RVQTDAFVSN ELDDPDDLQC KRGEHVALAN WQNHA SLRL LNLVYDVTPP ELVDLVITEL GMIPCSSVPV VLRVKSSDQ

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Macromolecule #5: Translation initiation factor eIF-2B subunit epsilon

MacromoleculeName: Translation initiation factor eIF-2B subunit epsilon / type: protein_or_peptide / ID: 5 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 80.466609 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MAAPVVAPPG VVVSRANKRS GAGPGGSGGG GARGAEEEPP PPLQAVLVAD SFDRRFFPIS KDQPRVLLPL ANVALIDYTL EFLTATGVQ ETFVFCCWKA AQIKEHLLKS KWCRPTSLNV VRIITSELYR SLGDVLRDVD AKALVRSDFL LVYGDVISNI N ITRALEEH ...String:
MAAPVVAPPG VVVSRANKRS GAGPGGSGGG GARGAEEEPP PPLQAVLVAD SFDRRFFPIS KDQPRVLLPL ANVALIDYTL EFLTATGVQ ETFVFCCWKA AQIKEHLLKS KWCRPTSLNV VRIITSELYR SLGDVLRDVD AKALVRSDFL LVYGDVISNI N ITRALEEH RLRRKLEKNV SVMTMIFKES SPSHPTRCHE DNVVVAVDST TNRVLHFQKT QGLRRFAFPL SLFQGSSDGV EV RYDLLDC HISICSPQVA QLFTDNFDYQ TRDDFVRGLL VNEEILGNQI HMHVTAKEYG ARVSNLHMYS AVCADVIRRW VYP LTPEAN FTDSTTQSCT HSRHNIYRGP EVSLGHGSIL EENVLLGSGT VIGSNCFITN SVIGPGCHIG DNVVLDQTYL WQGV RVAAG AQIHQSLLCD NAEVKERVTL KPRSVLTSQV VVGPNITLPE GSVISLHPPD AEEDEDDGEF SDDSGADQEK DKVKM KGYN PAEVGAAGKG YLWKAAGMNM EEEEELQQNL WGLKINMEEE SESESEQSMD SEEPDSRGGS PQMDDIKVFQ NEVLGT LQR GKEENISCDN LVLEINSLKY AYNISLKEVM QVLSHVVLEF PLQQMDSPLD SSRYCALLLP LLKAWSPVFR NYIKRAA DH LEALAAIEDF FLEHEALGIS MAKVLMAFYQ LEILAEETIL SWFSQRDTTD KGQQLRKNQQ LQRFIQWLKE AEEESSED D

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Macromolecule #6: Eukaryotic translation initiation factor 2 subunit 1

MacromoleculeName: Eukaryotic translation initiation factor 2 subunit 1 / type: protein_or_peptide / ID: 6 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 36.16118 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MPGLSCRFYQ HKFPEVEDVV MVNVRSIAEM GAYVSLLEYN NIEGMILLSE LSRRRIRSIN KLIRIGRNEC VVVIRVDKEK GYIDLSKRR VSPEEAIKCE DKFTKSKTVY SILRHVAEVL EYTKDEQLES LFQRTAWVFD DKYKRPGYGA YDAFKHAVSD P SILDSLDL ...String:
MPGLSCRFYQ HKFPEVEDVV MVNVRSIAEM GAYVSLLEYN NIEGMILLSE LSRRRIRSIN KLIRIGRNEC VVVIRVDKEK GYIDLSKRR VSPEEAIKCE DKFTKSKTVY SILRHVAEVL EYTKDEQLES LFQRTAWVFD DKYKRPGYGA YDAFKHAVSD P SILDSLDL NEDEREVLIN NINRRLTPQA VKIRADIEVA CYGYEGIDAV KEALRAGLNC STENMPIKIN LIAPPRYVMT TT TLERTEG LSVLSQAMAV IKEKIEEKRG VFNVQMEPKV VTDTDETELA RQMERLEREN AEVDGDDDAE EMEAKAED

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Macromolecule #7: eIF2b

MacromoleculeName: eIF2b / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 2.016338 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString:
EKEYVEMLDR LYSKLP

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Macromolecule #8: Eukaryotic translation initiation factor 2 subunit 3

MacromoleculeName: Eukaryotic translation initiation factor 2 subunit 3 / type: protein_or_peptide / ID: 8 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 51.178406 KDa
Recombinant expressionOrganism: Homo sapiens (human)
SequenceString: MAGGEAGVTL GQPHLSRQDL TTLDVTKLTP LSHEVISRQA TINIGTIGHV AHGKSTVVKA ISGVHTVRFK NELERNITIK LGYANAKIY KLDDPSCPRP ECYRSCGSST PDEFPTDIPG TKGNFKLVRH VSFVDCPGHD ILMATMLNGA AVMDAALLLI A GNESCPQP ...String:
MAGGEAGVTL GQPHLSRQDL TTLDVTKLTP LSHEVISRQA TINIGTIGHV AHGKSTVVKA ISGVHTVRFK NELERNITIK LGYANAKIY KLDDPSCPRP ECYRSCGSST PDEFPTDIPG TKGNFKLVRH VSFVDCPGHD ILMATMLNGA AVMDAALLLI A GNESCPQP QTSEHLAAIE IMKLKHILIL QNKIDLVKES QAKEQYEQIL AFVQGTVAEG APIIPISAQL KYNIEVVCEY IV KKIPVPP RDFTSEPRLI VIRSFDVNKP GCEVDDLKGG VAGGSILKGV LKVGQEIEVR PGIVSKDSEG KLMCKPIFSK IVS LFAEHN DLQYAAPGGL IGVGTKIDPT LCRADRMVGQ VLGAVGALPE IFTELEISYF LLRRLLGVRT EGDKKAAKVQ KLSK NEVLM VNIGSLSTGG RVSAVKADLG KIVLTNPVCT EVGEKIALSR RVEKHWRLIG WGQIRRGVTI KPTVDDD

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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: 7.5
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TECNAI ARCTICA
Electron beamAcceleration voltage: 200 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 50.0 e/Å2
Experimental equipment
Model: Talos Arctica / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionApplied symmetry - Point group: C1 (asymmetric) / Resolution.type: BY AUTHOR / Resolution: 4.6 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 719877
FSC plot (resolution estimation)

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