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- PDB-4zqs: New compact conformation of linear Ub2 structure -

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Basic information

Entry
Database: PDB / ID: 4zqs
TitleNew compact conformation of linear Ub2 structure
Componentsubiquitin
KeywordsPROTEIN BINDING / New compact conformation / linear polyubiquitin
Function / homology
Function and homology information


Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex ...Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / Glycogen synthesis / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Negative regulation of FLT3 / Constitutive Signaling by NOTCH1 HD Domain Mutants / Regulation of FZD by ubiquitination / TICAM1,TRAF6-dependent induction of TAK1 complex / NOTCH2 Activation and Transmission of Signal to the Nucleus / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / p75NTR recruits signalling complexes / Downregulation of ERBB4 signaling / APC-Cdc20 mediated degradation of Nek2A / PINK1-PRKN Mediated Mitophagy / TRAF6-mediated induction of TAK1 complex within TLR4 complex / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / Pexophagy / Regulation of innate immune responses to cytosolic DNA / InlA-mediated entry of Listeria monocytogenes into host cells / VLDLR internalisation and degradation / Downregulation of ERBB2:ERBB3 signaling / NF-kB is activated and signals survival / NRIF signals cell death from the nucleus / Regulation of PTEN localization / Activated NOTCH1 Transmits Signal to the Nucleus / Regulation of BACH1 activity / Translesion synthesis by REV1 / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Translesion synthesis by POLK / MAP3K8 (TPL2)-dependent MAPK1/3 activation / TICAM1, RIP1-mediated IKK complex recruitment / Downregulation of TGF-beta receptor signaling / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / Josephin domain DUBs / Regulation of activated PAK-2p34 by proteasome mediated degradation / InlB-mediated entry of Listeria monocytogenes into host cell / IKK complex recruitment mediated by RIP1 / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / Autodegradation of Cdh1 by Cdh1:APC/C / TNFR1-induced NF-kappa-B signaling pathway / APC/C:Cdc20 mediated degradation of Securin / Asymmetric localization of PCP proteins / TCF dependent signaling in response to WNT / SCF-beta-TrCP mediated degradation of Emi1 / AUF1 (hnRNP D0) binds and destabilizes mRNA / NIK-->noncanonical NF-kB signaling / Ubiquitin-dependent degradation of Cyclin D / Regulation of NF-kappa B signaling / TNFR2 non-canonical NF-kB pathway / activated TAK1 mediates p38 MAPK activation / Assembly of the pre-replicative complex / Vpu mediated degradation of CD4 / NOTCH3 Activation and Transmission of Signal to the Nucleus / Negative regulators of DDX58/IFIH1 signaling / Deactivation of the beta-catenin transactivating complex / Degradation of DVL / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Regulation of signaling by CBL / Dectin-1 mediated noncanonical NF-kB signaling / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Fanconi Anemia Pathway / Negative regulation of FGFR3 signaling / Hh mutants are degraded by ERAD / Recognition of DNA damage by PCNA-containing replication complex / Peroxisomal protein import / Degradation of AXIN / Downregulation of SMAD2/3:SMAD4 transcriptional activity / Degradation of GLI1 by the proteasome / Activation of NF-kappaB in B cells / Regulation of TNFR1 signaling / Negative regulation of FGFR2 signaling / Termination of translesion DNA synthesis / Negative regulation of FGFR4 signaling / Hedgehog ligand biogenesis / Defective CFTR causes cystic fibrosis / Stabilization of p53 / EGFR downregulation / Negative regulation of NOTCH4 signaling / Negative regulation of FGFR1 signaling / Iron uptake and transport / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / G2/M Checkpoints / SMAD2/SMAD3:SMAD4 heterotrimer regulates transcription / Vif-mediated degradation of APOBEC3G
Similarity search - Function
Ubiquitin domain signature. / Ubiquitin conserved site / Ubiquitin domain / Ubiquitin family / Ubiquitin homologues / Ubiquitin domain profile. / Ubiquitin-like domain / Ubiquitin-like domain superfamily
Similarity search - Domain/homology
Biological speciesHomo sapiens (human)
MethodX-RAY DIFFRACTION / SYNCHROTRON / MOLECULAR REPLACEMENT / Resolution: 1.804 Å
AuthorsThach, T.T. / Shin, D. / Han, S. / Lee, S.
Funding support Korea, Republic Of, 2items
OrganizationGrant numberCountry
Ministry of Education2013R1A1A2059981 Korea, Republic Of
Korea government2012-0009597 Korea, Republic Of
CitationJournal: Acta Crystallogr D Struct Biol / Year: 2016
Title: New conformations of linear polyubiquitin chains from crystallographic and solution-scattering studies expand the conformational space of polyubiquitin.
Authors: Trung Thanh Thach / Donghyuk Shin / Seungsu Han / Sangho Lee /
Abstract: The conformational flexibility of linkage-specific polyubiquitin chains enables ubiquitylated proteins and their receptors to be involved in a variety of cellular processes. Linear or Met1-linked ...The conformational flexibility of linkage-specific polyubiquitin chains enables ubiquitylated proteins and their receptors to be involved in a variety of cellular processes. Linear or Met1-linked polyubiquitin chains, associated with nondegradational cellular signalling pathways, have been known to adopt multiple conformations from compact to extended conformations. However, the extent of such conformational flexibility remains open. Here, the crystal structure of linear Ub2 was determined in a more compact conformation than that of the previously known structure (PDB entry 3axc). The two structures differ significantly from each other, as shown by an r.m.s.d. between C(α) atoms of 3.1 Å. The compactness of the linear Ub2 structure in comparison with PDB entry 3axc is supported by smaller values of the radius of gyration (Rg; 18 versus 18.9 Å) and the maximum interatomic distance (Dmax; 55.5 versus 57.8 Å). Extra intramolecular hydrogen bonds formed among polar residues between the distal and proximal ubiquitin moieties seem to contribute to stabilization of the compact conformation of linear Ub2. An ensemble of three semi-extended and extended conformations of linear Ub2 was also observed by small-angle X-ray scattering (SAXS) analysis in solution. In addition, the conformational heterogeneity in linear polyubiquitin chains is clearly manifested by SAXS analyses of linear Ub3 and Ub4: at least three distinct solution conformations are observed in each chain, with the linear Ub3 conformations being compact. The results expand the extent of conformational space of linear polyubiquitin chains and suggest that changes in the conformational ensemble may be pivotal in mediating multiple signalling pathways.
History
DepositionMay 11, 2015Deposition site: RCSB / Processing site: PDBJ
Revision 1.0Apr 20, 2016Provider: repository / Type: Initial release
Revision 1.1Nov 8, 2023Group: Data collection / Database references ...Data collection / Database references / Derived calculations / Refinement description
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_initial_refinement_model / pdbx_struct_oper_list
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_struct_oper_list.symmetry_operation

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

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Assembly

Deposited unit
A: ubiquitin
B: ubiquitin


Theoretical massNumber of molelcules
Total (without water)35,0782
Polymers35,0782
Non-polymers00
Water3,945219
1


  • Idetical with deposited unit
  • defined by author&software
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
Buried area1900 Å2
ΔGint-7 kcal/mol
Surface area14910 Å2
MethodPISA
Unit cell
Length a, b, c (Å)32.711, 40.973, 47.580
Angle α, β, γ (deg.)94.780, 92.560, 99.220
Int Tables number1
Space group name H-MP1

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Components

#1: Protein ubiquitin / linear Ub2


Mass: 17539.109 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: UBC / Plasmid: parallel GST2 / Production host: Escherichia coli (E. coli) / Strain (production host): BL21(DE3) / References: UniProt: P0CG48
#2: Water ChemComp-HOH / water


Mass: 18.015 Da / Num. of mol.: 219 / 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: 1.86 Å3/Da / Density % sol: 33.75 %
Crystal growTemperature: 295 K / Method: vapor diffusion, hanging drop / pH: 8
Details: 0.1M Tris-HCl pH 8.0, 0.1M magnesium acetate, 20% PEG 3350, 20% PEG 400

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Data collection

DiffractionMean temperature: 100 K
Diffraction sourceSource: SYNCHROTRON / Site: PAL/PLS / Beamline: 5C (4A) / Wavelength: 0.9795 Å
DetectorType: ADSC QUANTUM 315 / Detector: CCD / Date: Apr 13, 2013
RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M / Scattering type: x-ray
Radiation wavelengthWavelength: 0.9795 Å / Relative weight: 1
ReflectionResolution: 1.8→50 Å / Num. obs: 21562 / % possible obs: 96.6 % / Redundancy: 3.8 % / Rmerge(I) obs: 0.094 / Net I/σ(I): 34.9
Reflection shellResolution: 1.8→1.83 Å / Redundancy: 3.7 % / Rmerge(I) obs: 0.507 / Mean I/σ(I) obs: 4.9 / % possible all: 96.3

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Processing

Software
NameVersionClassification
PHENIX1.9refinement
PDB_EXTRACT3.15data extraction
HKL-2000data reduction
HKL-2000data scaling
PHENIX1.9phasing
RefinementMethod to determine structure: MOLECULAR REPLACEMENT
Starting model: 1UBQ

1ubq


Resolution: 1.804→32.232 Å / SU ML: 0.21 / Cross valid method: FREE R-VALUE / σ(F): 0.13 / Phase error: 24.12 / Stereochemistry target values: ML
RfactorNum. reflection% reflection
Rfree0.2319 1961 9.29 %
Rwork0.1957 --
obs0.1991 21109 94.34 %
Solvent computationShrinkage radii: 0.9 Å / VDW probe radii: 1.11 Å / Solvent model: FLAT BULK SOLVENT MODEL
Displacement parametersBiso max: 121.35 Å2 / Biso mean: 29.7549 Å2 / Biso min: 7.39 Å2
Refinement stepCycle: final / Resolution: 1.804→32.232 Å
ProteinNucleic acidLigandSolventTotal
Num. atoms2366 0 0 219 2585
Biso mean---37.96 -
Num. residues----298

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