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- PDB-5whl: Kelch domain of human Keap1 bound to inhibitory small molecule fr... -

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Basic information

Entry
Database: PDB / ID: 5whl
TitleKelch domain of human Keap1 bound to inhibitory small molecule fragment: hydroxyphenyl propionic acid
ComponentsKelch-like ECH-associated protein 1
KeywordsTRANSCRIPTION/INHIBITOR / Scaffold / Inhibitor / Fragment / TRANSCRIPTION / TRANSCRIPTION-INHIBITOR complex
Function / homology
Function and homology information


regulation of epidermal cell differentiation / cytoplasmic sequestering of transcription factor / Cul3-RING ubiquitin ligase complex / centriolar satellite / cellular response to interleukin-4 / inclusion body / regulation of autophagy / actin filament / KEAP1-NFE2L2 pathway / positive regulation of proteasomal ubiquitin-dependent protein catabolic process ...regulation of epidermal cell differentiation / cytoplasmic sequestering of transcription factor / Cul3-RING ubiquitin ligase complex / centriolar satellite / cellular response to interleukin-4 / inclusion body / regulation of autophagy / actin filament / KEAP1-NFE2L2 pathway / positive regulation of proteasomal ubiquitin-dependent protein catabolic process / Antigen processing: Ubiquitination & Proteasome degradation / negative regulation of DNA-binding transcription factor activity / Neddylation / cellular response to oxidative stress / midbody / disordered domain specific binding / ubiquitin-dependent protein catabolic process / in utero embryonic development / RNA polymerase II-specific DNA-binding transcription factor binding / Potential therapeutics for SARS / protein ubiquitination / Ub-specific processing proteases / endoplasmic reticulum / nucleoplasm / identical protein binding / cytosol / cytoplasm
Similarity search - Function
Kelch-type beta propeller / Kelch-like ECH-associated protein 1 / BTB-kelch protein / BTB/Kelch-associated / BTB And C-terminal Kelch / BTB And C-terminal Kelch / Kelch / Kelch motif / Kelch repeat type 1 / Kelch-type beta propeller ...Kelch-type beta propeller / Kelch-like ECH-associated protein 1 / BTB-kelch protein / BTB/Kelch-associated / BTB And C-terminal Kelch / BTB And C-terminal Kelch / Kelch / Kelch motif / Kelch repeat type 1 / Kelch-type beta propeller / BTB/POZ domain / BTB domain profile. / Broad-Complex, Tramtrack and Bric a brac / BTB/POZ domain / 6 Propeller / Neuraminidase / SKP1/BTB/POZ domain superfamily / Mainly Beta
Similarity search - Domain/homology
HYDROXYPHENYL PROPIONIC ACID / Kelch-like ECH-associated protein 1
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 2.5 Å
AuthorsCarolan, J.P. / Lynch, A.J. / Allen, K.N.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35-GM118078 United States
CitationJournal: Biochemistry / Year: 2020
Title: Interaction Energetics and Druggability of the Protein-Protein Interaction between Kelch-like ECH-Associated Protein 1 (KEAP1) and Nuclear Factor Erythroid 2 Like 2 (Nrf2).
Authors: Zhong, M. / Lynch, A. / Muellers, S.N. / Jehle, S. / Luo, L. / Hall, D.R. / Iwase, R. / Carolan, J.P. / Egbert, M. / Wakefield, A. / Streu, K. / Harvey, C.M. / Ortet, P.C. / Kozakov, D. / ...Authors: Zhong, M. / Lynch, A. / Muellers, S.N. / Jehle, S. / Luo, L. / Hall, D.R. / Iwase, R. / Carolan, J.P. / Egbert, M. / Wakefield, A. / Streu, K. / Harvey, C.M. / Ortet, P.C. / Kozakov, D. / Vajda, S. / Allen, K.N. / Whitty, A.
History
DepositionJul 17, 2017Deposition site: RCSB / Processing site: RCSB
Revision 1.0Sep 19, 2018Provider: repository / Type: Initial release
Revision 1.1Jan 1, 2020Group: Author supporting evidence / Category: pdbx_audit_support / Item: _pdbx_audit_support.funding_organization
Revision 1.2Apr 1, 2020Group: Database references / Category: citation / citation_author
Item: _citation.country / _citation.journal_abbrev ..._citation.country / _citation.journal_abbrev / _citation.journal_id_ASTM / _citation.journal_id_CSD / _citation.journal_id_ISSN / _citation.journal_volume / _citation.page_first / _citation.page_last / _citation.pdbx_database_id_DOI / _citation.pdbx_database_id_PubMed / _citation.title / _citation.year

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: Kelch-like ECH-associated protein 1
B: Kelch-like ECH-associated protein 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)74,2536
Polymers73,7982
Non-polymers4544
Water55831
1
A: Kelch-like ECH-associated protein 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)37,0652
Polymers36,8991
Non-polymers1661
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
2
B: Kelch-like ECH-associated protein 1
hetero molecules


Theoretical massNumber of molelcules
Total (without water)37,1874
Polymers36,8991
Non-polymers2883
Water181
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
MethodPISA
Unit cell
Length a, b, c (Å)160.849, 68.306, 77.406
Angle α, β, γ (deg.)90.00, 117.68, 90.00
Int Tables number5
Space group name H-MC121

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Components

#1: Protein Kelch-like ECH-associated protein 1 / Cytosolic inhibitor of Nrf2 / INrf2 / Kelch-like protein 19


Mass: 36899.176 Da / Num. of mol.: 2 / Mutation: E540A, E542A
Source method: isolated from a genetically manipulated source
Details: His-tagged variant including mutations for altered crystallographic packing
Source: (gene. exp.) Homo sapiens (human) / Gene: KEAP1, INRF2, KIAA0132, KLHL19 / Production host: Escherichia coli (E. coli) / References: UniProt: Q14145
#2: Chemical ChemComp-HPP / HYDROXYPHENYL PROPIONIC ACID / Phloretic acid


Mass: 166.174 Da / Num. of mol.: 1 / Source method: obtained synthetically / Formula: C9H10O3
#3: Chemical ChemComp-SO4 / SULFATE ION / Sulfate


Mass: 96.063 Da / Num. of mol.: 3 / Source method: obtained synthetically / Formula: SO4
#4: Water ChemComp-HOH / water / Water


Mass: 18.015 Da / Num. of mol.: 31 / Source method: isolated from a natural source / Formula: H2O

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Experimental details

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Experiment

ExperimentMethod: X-RAY DIFFRACTION / Number of used crystals: 1

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Sample preparation

CrystalDensity Matthews: 2.55 Å3/Da / Density % sol: 51.79 %
Crystal growTemperature: 290 K / Method: vapor diffusion, hanging drop
Details: 1.2 - 1.5 M Ammonium sulfate, 0.1 M Bis-Tris pH = 6.0 - 6.5
PH range: 6.0 - 6.5

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Data collection

DiffractionMean temperature: 100 K / Ambient temp details: Nitrogen stream
Diffraction sourceSource: SYNCHROTRON / Site: APS / Beamline: 24-ID-E / Wavelength: 0.97918 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Nov 26, 2014
Details: Cryogenically-cooled single crystal Si(220) side bounce monochromator
RadiationMonochromator: Cryogenically-cooled single crystal Si(220) side bounce monochromator
Protocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.97918 Å / Relative weight: 1
ReflectionResolution: 2.5→71.22 Å / Num. obs: 25927 / % possible obs: 99.56 % / Redundancy: 3.8 % / CC1/2: 0.986 / Rmerge(I) obs: 0.1519 / Net I/σ(I): 11.6
Reflection shellResolution: 2.5→2.589 Å / Redundancy: 3.8 % / Rmerge(I) obs: 1.05 / Mean I/σ(I) obs: 1.27 / Num. unique obs: 2545 / CC1/2: 0.482 / % possible all: 99.69

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Processing

Software
NameVersionClassification
PHENIX(1.12_2829: ???)refinement
XDSdata reduction
XDSdata scaling
PHASERphasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 5WFL
Resolution: 2.5→71.218 Å / SU ML: 0.44 / Cross valid method: FREE R-VALUE / σ(F): 1.35 / Phase error: 31.67
RfactorNum. reflection% reflectionSelection details
Rfree0.2841 2015 7.81 %Random selection
Rwork0.2297 ---
obs0.234 25815 99.56 %-
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å
Displacement parametersBiso mean: 52.8 Å2
Refinement stepCycle: LAST / Resolution: 2.5→71.218 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms4359 0 27 31 4417
Refine LS restraints
Refine-IDTypeDev idealNumber
X-RAY DIFFRACTIONf_bond_d0.0084493
X-RAY DIFFRACTIONf_angle_d1.0666123
X-RAY DIFFRACTIONf_dihedral_angle_d14.8572588
X-RAY DIFFRACTIONf_chiral_restr0.062651
X-RAY DIFFRACTIONf_plane_restr0.007807
LS refinement shell
Resolution (Å)Rfactor RfreeNum. reflection RfreeRfactor RworkNum. reflection RworkRefine-ID% reflection obs (%)
2.5-2.56260.39241460.33811683X-RAY DIFFRACTION100
2.5626-2.63180.38161420.30871700X-RAY DIFFRACTION100
2.6318-2.70930.39741330.31091665X-RAY DIFFRACTION99
2.7093-2.79670.35991400.29931666X-RAY DIFFRACTION99
2.7967-2.89670.39631410.29651696X-RAY DIFFRACTION99
2.8967-3.01270.34771470.29111681X-RAY DIFFRACTION99
3.0127-3.14980.32781480.27051698X-RAY DIFFRACTION100
3.1498-3.31590.31291390.24311689X-RAY DIFFRACTION100
3.3159-3.52360.30861440.23751717X-RAY DIFFRACTION100
3.5236-3.79570.24131430.21341697X-RAY DIFFRACTION100
3.7957-4.17760.22951470.18861705X-RAY DIFFRACTION100
4.1776-4.7820.19371420.16421709X-RAY DIFFRACTION100
4.782-6.02430.25111500.19271729X-RAY DIFFRACTION100
6.0243-71.24670.29011530.22521765X-RAY DIFFRACTION99

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