[English] 日本語
Yorodumi
- EMDB-25791: cryo-EM structure of MBP-KIX-apoferritin -

+
Open data


ID or keywords:

Loading...

-
Basic information

Entry
Database: EMDB / ID: EMD-25791
Titlecryo-EM structure of MBP-KIX-apoferritin
Map datacryo-EM structure of MBP-KIX-apoferritin
Sample
  • Complex: MBP-KIX-apoferritin
    • Protein or peptide: Isoform 2 of CREB-binding protein,Ferritin heavy chain, N-terminally processed
KeywordsProtein Engineering / Simulation / Peptide Therapeutics / Acute Myeloid Leukemia / STRUCTURAL PROTEIN
Function / homology
Function and homology information


Iron uptake and transport / Golgi Associated Vesicle Biogenesis / peptide lactyltransferase (CoA-dependent) activity / regulation of smoothened signaling pathway / NFE2L2 regulating ER-stress associated genes / peptide N-acetyltransferase activity / Activation of the TFAP2 (AP-2) family of transcription factors / NFE2L2 regulating inflammation associated genes / iron ion sequestering activity / histone H3K18 acetyltransferase activity ...Iron uptake and transport / Golgi Associated Vesicle Biogenesis / peptide lactyltransferase (CoA-dependent) activity / regulation of smoothened signaling pathway / NFE2L2 regulating ER-stress associated genes / peptide N-acetyltransferase activity / Activation of the TFAP2 (AP-2) family of transcription factors / NFE2L2 regulating inflammation associated genes / iron ion sequestering activity / histone H3K18 acetyltransferase activity / N-terminal peptidyl-lysine acetylation / histone H3K27 acetyltransferase activity / LRR FLII-interacting protein 1 (LRRFIP1) activates type I IFN production / NFE2L2 regulates pentose phosphate pathway genes / NFE2L2 regulating MDR associated enzymes / MRF binding / RUNX1 regulates transcription of genes involved in differentiation of myeloid cells / Regulation of FOXO transcriptional activity by acetylation / Regulation of gene expression in late stage (branching morphogenesis) pancreatic bud precursor cells / RUNX3 regulates NOTCH signaling / Regulation of gene expression by Hypoxia-inducible Factor / Nuclear events mediated by NFE2L2 / NOTCH4 Intracellular Domain Regulates Transcription / FOXO-mediated transcription of cell death genes / Regulation of NFE2L2 gene expression / negative regulation of transcription by RNA polymerase I / negative regulation of ferroptosis / NOTCH3 Intracellular Domain Regulates Transcription / TRAF6 mediated IRF7 activation / peptide-lysine-N-acetyltransferase activity / NFE2L2 regulating tumorigenic genes / NFE2L2 regulating anti-oxidant/detoxification enzymes / embryonic digit morphogenesis / homeostatic process / protein acetylation / Notch-HLH transcription pathway / ferroxidase / positive regulation of transforming growth factor beta receptor signaling pathway / autolysosome / Formation of paraxial mesoderm / stimulatory C-type lectin receptor signaling pathway / acetyltransferase activity / Zygotic genome activation (ZGA) / TP53 Regulates Transcription of Genes Involved in Cytochrome C Release / ferroxidase activity / intracellular sequestering of iron ion / histone acetyltransferase complex / Attenuation phase / positive regulation of double-strand break repair via homologous recombination / cellular response to nutrient levels / Transcriptional and post-translational regulation of MITF-M expression and activity / canonical NF-kappaB signal transduction / histone acetyltransferase activity / regulation of cellular response to heat / negative regulation of fibroblast proliferation / histone acetyltransferase / endocytic vesicle lumen / Transferases; Acyltransferases; Transferring groups other than aminoacyl groups / RORA activates gene expression / Regulation of lipid metabolism by PPARalpha / NPAS4 regulates expression of target genes / autophagosome / CD209 (DC-SIGN) signaling / Neutrophil degranulation / ferric iron binding / BMAL1:CLOCK,NPAS2 activates circadian gene expression / SUMOylation of transcription cofactors / Activation of gene expression by SREBF (SREBP) / protein destabilization / Formation of the beta-catenin:TCF transactivating complex / Heme signaling / ferrous iron binding / Transcriptional activation of mitochondrial biogenesis / PPARA activates gene expression / Cytoprotection by HMOX1 / chromatin DNA binding / Evasion by RSV of host interferon responses / NOTCH1 Intracellular Domain Regulates Transcription / transcription coactivator binding / Pre-NOTCH Transcription and Translation / Transcriptional regulation of white adipocyte differentiation / Constitutive Signaling by NOTCH1 PEST Domain Mutants / Constitutive Signaling by NOTCH1 HD+PEST Domain Mutants / positive regulation of protein localization to nucleus / Activation of anterior HOX genes in hindbrain development during early embryogenesis / transcription corepressor activity / cellular response to UV / rhythmic process / p53 binding / Circadian Clock / TRAF3-dependent IRF activation pathway / iron ion transport / HATs acetylate histones / protein-containing complex assembly / DNA-binding transcription factor binding / RNA polymerase II-specific DNA-binding transcription factor binding / Estrogen-dependent gene expression / transcription regulator complex / damaged DNA binding / transcription coactivator activity
Similarity search - Function
Nuclear receptor coactivator, CREB-bp-like, interlocking / Nuclear receptor coactivator, CREB-bp-like, interlocking domain superfamily / Creb binding / Zinc finger, TAZ-type / TAZ domain superfamily / TAZ zinc finger / Zinc finger TAZ-type profile. / TAZ zinc finger, present in p300 and CBP / Coactivator CBP, KIX domain / CREB-binding protein/p300, atypical RING domain ...Nuclear receptor coactivator, CREB-bp-like, interlocking / Nuclear receptor coactivator, CREB-bp-like, interlocking domain superfamily / Creb binding / Zinc finger, TAZ-type / TAZ domain superfamily / TAZ zinc finger / Zinc finger TAZ-type profile. / TAZ zinc finger, present in p300 and CBP / Coactivator CBP, KIX domain / CREB-binding protein/p300, atypical RING domain / CBP/p300-type histone acetyltransferase domain / CBP/p300, atypical RING domain superfamily / KIX domain / CREB-binding protein/p300, atypical RING domain / KIX domain profile. / CBP/p300-type histone acetyltransferase (HAT) domain profile. / Histone acetyltransferase Rtt109/CBP / Histone acetylation protein / Histone acetylation protein / Coactivator CBP, KIX domain superfamily / Zinc finger ZZ-type signature. / Zinc-binding domain, present in Dystrophin, CREB-binding protein. / Zinc finger, ZZ type / Zinc finger, ZZ-type / Zinc finger, ZZ-type superfamily / Zinc finger ZZ-type profile. / Ferritin iron-binding regions signature 1. / Ferritin iron-binding regions signature 2. / Ferritin, conserved site / Ferritin / Ferritin-like diiron domain / Ferritin-like diiron domain profile. / Ferritin/DPS protein domain / Ferritin-like domain / Nuclear receptor coactivator, interlocking / Ferritin-like / Ferritin-like superfamily / Bromodomain, conserved site / Bromodomain signature. / Bromodomain / Bromodomain profile. / bromo domain / Bromodomain / Bromodomain-like superfamily / Zinc finger, RING/FYVE/PHD-type
Similarity search - Domain/homology
Ferritin heavy chain / CREB-binding protein
Similarity search - Component
Biological speciesHomo sapiens (human)
Methodsingle particle reconstruction / cryo EM / Resolution: 2.57 Å
AuthorsZhang K / Horikoshi N
Funding support United States, 3 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R01GM079429 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)P41GM103832 United States
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)S10OD021600 United States
CitationJournal: ACS Cent Sci / Year: 2022
Title: Cryo-EM, Protein Engineering, and Simulation Enable the Development of Peptide Therapeutics against Acute Myeloid Leukemia.
Authors: Kaiming Zhang / Naoki Horikoshi / Shanshan Li / Alexander S Powers / Mikhail A Hameedi / Grigore D Pintilie / Hee-Don Chae / Yousuf A Khan / Carl-Mikael Suomivuori / Ron O Dror / Kathleen M ...Authors: Kaiming Zhang / Naoki Horikoshi / Shanshan Li / Alexander S Powers / Mikhail A Hameedi / Grigore D Pintilie / Hee-Don Chae / Yousuf A Khan / Carl-Mikael Suomivuori / Ron O Dror / Kathleen M Sakamoto / Wah Chiu / Soichi Wakatsuki /
Abstract: Cryogenic electron microscopy (cryo-EM) has emerged as a viable structural tool for molecular therapeutics development against human diseases. However, it remains a challenge to determine structures ...Cryogenic electron microscopy (cryo-EM) has emerged as a viable structural tool for molecular therapeutics development against human diseases. However, it remains a challenge to determine structures of proteins that are flexible and smaller than 30 kDa. The 11 kDa KIX domain of CREB-binding protein (CBP), a potential therapeutic target for acute myeloid leukemia and other cancers, is a protein which has defied structure-based inhibitor design. Here, we develop an experimental approach to overcome the size limitation by engineering a protein double-shell to sandwich the KIX domain between apoferritin as the inner shell and maltose-binding protein as the outer shell. To assist homogeneous orientations of the target, disulfide bonds are introduced at the target-apoferritin interface, resulting in a cryo-EM structure at 2.6 Å resolution. We used molecular dynamics simulations to design peptides that block the interaction of the KIX domain of CBP with the intrinsically disordered pKID domain of CREB. The double-shell design allows for fluorescence polarization assays confirming the binding between the KIX domain in the double-shell and these interacting peptides. Further cryo-EM analysis reveals a helix-helix interaction between a single KIX helix and the best peptide, providing a possible strategy for developments of next-generation inhibitors.
History
DepositionDec 21, 2021-
Header (metadata) releaseMar 16, 2022-
Map releaseMar 16, 2022-
UpdateOct 23, 2024-
Current statusOct 23, 2024Processing site: RCSB / Status: Released

-
Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.13
  • Imaged by UCSF Chimera
  • Download
  • Surface view colored by radius
  • Surface level: 0.13
  • Imaged by UCSF Chimera
  • Download
  • Surface view with fitted model
  • Atomic models: PDB-7tb3
  • Surface level: 0.13
  • Imaged by UCSF Chimera
  • Download
  • Simplified surface model + fitted atomic model
  • Atomic modelsPDB-7tb3
  • Imaged by Jmol
  • Download
Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_25791.png

Downloads & links

-
Map

FileDownload / File: emd_25791.map.gz / Format: CCP4 / Size: 216 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationcryo-EM structure of MBP-KIX-apoferritin
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.82 Å/pix.
x 384 pix.
= 314.88 Å		0.82 Å/pix.
x 384 pix.
= 314.88 Å		0.82 Å/pix.
x 384 pix.
= 314.88 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.82 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.13 / Movie #1: 0.13
Minimum - Maximum-0.36485854 - 1.1592886
Average (Standard dev.)0.008489124 (±0.049842663)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions384384384
Spacing384384384
CellA=B=C: 314.88 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z0.820.820.82
M x/y/z384384384
origin x/y/z0.0000.0000.000
length x/y/z314.880314.880314.880
α/β/γ90.00090.00090.000
start NX/NY/NZ139118109
NX/NY/NZ123164187
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS384384384
D min/max/mean-0.3651.1590.008

-
Supplemental data

-
Sample components

-
Entire : MBP-KIX-apoferritin

EntireName: MBP-KIX-apoferritin
Components
  • Complex: MBP-KIX-apoferritin
    • Protein or peptide: Isoform 2 of CREB-binding protein,Ferritin heavy chain, N-terminally processed

-
Supramolecule #1: MBP-KIX-apoferritin

SupramoleculeName: MBP-KIX-apoferritin / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 1.7 MDa

-
Macromolecule #1: Isoform 2 of CREB-binding protein,Ferritin heavy chain, N-termina...

MacromoleculeName: Isoform 2 of CREB-binding protein,Ferritin heavy chain, N-terminally processed
type: protein_or_peptide / ID: 1 / Number of copies: 24 / Enantiomer: LEVO / EC number: histone acetyltransferase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 30.408438 KDa
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString: HMGVRKGWHE HVTQDLRSHL VHKLVQAIFP CPDPCALKDR RMENLVAYAK KVEGDMYESA NSRDEYYHLL AEKIYKIQKE LEEKSQVRQ NYHQDAEAAI NRQINLELYA SYVYLSMSCY FDRDDVALKN FAKYFLHQSH EEREHAEKLM KLQNQRGGRI F LQDIKKPD ...String:
HMGVRKGWHE HVTQDLRSHL VHKLVQAIFP CPDPCALKDR RMENLVAYAK KVEGDMYESA NSRDEYYHLL AEKIYKIQKE LEEKSQVRQ NYHQDAEAAI NRQINLELYA SYVYLSMSCY FDRDDVALKN FAKYFLHQSH EEREHAEKLM KLQNQRGGRI F LQDIKKPD RDDWCSGLNA MESALHLEKS VNQSLLELHK LATDKNDPHL CDFIETYYLS EQVKSIKELG DHVTNLRKMG AP CAGMAEY LFDKHTLGHG DES

UniProtKB: CREB-binding protein, Ferritin heavy chain

-
Experimental details

-
Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

-
Sample preparation

Concentration4 mg/mL
BufferpH: 8
GridModel: Quantifoil R2/1 / Support film - Material: CARBON / Support film - topology: HOLEY
VitrificationCryogen name: ETHANE
DetailsMBP-KIX-apoferritin

-
Electron microscopy

MicroscopeFEI TITAN KRIOS
Specialist opticsEnergy filter - Name: GIF Bioquantum / Energy filter - Slit width: 20 eV
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Detector mode: COUNTING / Number grids imaged: 1 / Number real images: 1915 / Average exposure time: 6.0 sec. / Average electron dose: 43.8 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsC2 aperture diameter: 70.0 µm / Illumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Cs: 2.7 mm / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.3 µm / Nominal magnification: 165000
Sample stageSpecimen holder model: FEI TITAN KRIOS AUTOGRID HOLDER / Cooling holder cryogen: NITROGEN
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

+
Image processing

Particle selectionNumber selected: 167662
Startup modelType of model: INSILICO MODEL
Final reconstructionApplied symmetry - Point group: O (octahedral) / Resolution.type: BY AUTHOR / Resolution: 2.57 Å / Resolution method: FSC 0.143 CUT-OFF / Software - Name: cryoSPARC (ver. 2) / Number images used: 37386
Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD

-
Atomic model buiding 1

RefinementProtocol: OTHER / Target criteria: Q-score
Output model

PDB-7tb3:
cryo-EM structure of MBP-KIX-apoferritin

+
About Yorodumi

-
News

-
Feb 9, 2022. New format data for meta-information of EMDB entries

New format data for meta-information of EMDB entries

  • Version 3 of the EMDB header file is now the official format.
  • The previous official version 1.9 will be removed from the archive.

Related info.:EMDB header

External links:wwPDB to switch to version 3 of the EMDB data model

-
Aug 12, 2020. Covid-19 info

Covid-19 info

URL: https://pdbj.org/emnavi/covid19.php

New page: Covid-19 featured information page in EM Navigator.

Related info.:Covid-19 info / Mar 5, 2020. Novel coronavirus structure data

+
Mar 5, 2020. Novel coronavirus structure data

Novel coronavirus structure data

Related info.:Yorodumi Speices / Aug 12, 2020. Covid-19 info

External links:COVID-19 featured content - PDBj / Molecule of the Month (242)：Coronavirus Proteases

+
Jan 31, 2019. EMDB accession codes are about to change! (news from PDBe EMDB page)

EMDB accession codes are about to change! (news from PDBe EMDB page)

  • The allocation of 4 digits for EMDB accession codes will soon come to an end. Whilst these codes will remain in use, new EMDB accession codes will include an additional digit and will expand incrementally as the available range of codes is exhausted. The current 4-digit format prefixed with “EMD-” (i.e. EMD-XXXX) will advance to a 5-digit format (i.e. EMD-XXXXX), and so on. It is currently estimated that the 4-digit codes will be depleted around Spring 2019, at which point the 5-digit format will come into force.
  • The EM Navigator/Yorodumi systems omit the EMD- prefix.

Related info.:Q: What is EMD? / ID/Accession-code notation in Yorodumi/EM Navigator

External links:EMDB Accession Codes are Changing Soon! / Contact to PDBj

+
Jul 12, 2017. Major update of PDB

Major update of PDB

  • wwPDB released updated PDB data conforming to the new PDBx/mmCIF dictionary.
  • This is a major update changing the version number from 4 to 5, and with Remediation, in which all the entries are updated.
  • In this update, many items about electron microscopy experimental information are reorganized (e.g. em_software).
  • Now, EM Navigator and Yorodumi are based on the updated data.

External links:wwPDB Remediation / Enriched Model Files Conforming to OneDep Data Standards Now Available in the PDB FTP Archive

-
Yorodumi

Thousand views of thousand structures

  • Yorodumi is a browser for structure data from EMDB, PDB, SASBDB, etc.
  • This page is also the successor to EM Navigator detail page, and also detail information page/front-end page for Omokage search.
  • The word "yorodu" (or yorozu) is an old Japanese word meaning "ten thousand". "mi" (miru) is to see.

Related info.:EMDB / PDB / SASBDB / Comparison of 3 databanks / Yorodumi Search / Aug 31, 2016. New EM Navigator & Yorodumi / Yorodumi Papers / Jmol/JSmol / Function and homology information / Changes in new EM Navigator and Yorodumi

Read more