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- SASDCG7: Lys63-linked diubiquitin at pH7.4 (Polyubiquitin-C, ubiquitin) -

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Basic information

Entry
Database: SASBDB / ID: SASDCG7
SampleLys63-linked diubiquitin at pH7.4
  • Polyubiquitin-C (protein), ubiquitin, Homo sapiens
Function / homology
Function and homology information


Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation ...Maturation of protein E / Maturation of protein E / ER Quality Control Compartment (ERQC) / Myoclonic epilepsy of Lafora / IRAK2 mediated activation of TAK1 complex / Alpha-protein kinase 1 signaling pathway / FLT3 signaling by CBL mutants / Prevention of phagosomal-lysosomal fusion / IRAK1 recruits IKK complex / IRAK1 recruits IKK complex upon TLR7/8 or 9 stimulation / Glycogen synthesis / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / TICAM1,TRAF6-dependent induction of TAK1 complex / Regulation of TBK1, IKKε (IKBKE)-mediated activation of IRF3, IRF7 / Regulation of TBK1, IKKε-mediated activation of IRF3, IRF7 upon TLR3 ligation / Membrane binding and targetting of GAG proteins / Endosomal Sorting Complex Required For Transport (ESCRT) / Negative regulation of FLT3 / Constitutive Signaling by NOTCH1 HD Domain Mutants / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / TICAM1-dependent activation of IRF3/IRF7 / NOTCH2 Activation and Transmission of Signal to the Nucleus / Regulation of FZD by ubiquitination / APC/C:Cdc20 mediated degradation of Cyclin B / p75NTR recruits signalling complexes / VLDLR internalisation and degradation / Downregulation of ERBB4 signaling / TRAF6-mediated induction of TAK1 complex within TLR4 complex / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / APC-Cdc20 mediated degradation of Nek2A / Regulation of innate immune responses to cytosolic DNA / InlA-mediated entry of Listeria monocytogenes into host cells / NF-kB is activated and signals survival / Regulation of pyruvate metabolism / Downregulation of ERBB2:ERBB3 signaling / NRIF signals cell death from the nucleus / Pexophagy / Regulation of PTEN localization / Regulation of BACH1 activity / Activated NOTCH1 Transmits Signal to the Nucleus / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Translesion synthesis by REV1 / TICAM1, RIP1-mediated IKK complex recruitment / MAP3K8 (TPL2)-dependent MAPK1/3 activation / Translesion synthesis by POLK / Downregulation of TGF-beta receptor signaling / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / Translesion synthesis by POLI / JNK (c-Jun kinases) phosphorylation and activation mediated by activated human TAK1 / Gap-filling DNA repair synthesis and ligation in GG-NER / IKK complex recruitment mediated by RIP1 / InlB-mediated entry of Listeria monocytogenes into host cell / Regulation of activated PAK-2p34 by proteasome mediated degradation / Josephin domain DUBs / PINK1-PRKN Mediated Mitophagy / TGF-beta receptor signaling in EMT (epithelial to mesenchymal transition) / N-glycan trimming in the ER and Calnexin/Calreticulin cycle / TNFR1-induced NF-kappa-B signaling pathway / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / TCF dependent signaling in response to WNT / SCF-beta-TrCP mediated degradation of Emi1 / Asymmetric localization of PCP proteins / NIK-->noncanonical NF-kB signaling / Regulation of NF-kappa B signaling / Ubiquitin-dependent degradation of Cyclin D / activated TAK1 mediates p38 MAPK activation / AUF1 (hnRNP D0) binds and destabilizes mRNA / TNFR2 non-canonical NF-kB pathway / Regulation of signaling by CBL / Vpu mediated degradation of CD4 / Negative regulators of DDX58/IFIH1 signaling / NOTCH3 Activation and Transmission of Signal to the Nucleus / Assembly of the pre-replicative complex / Degradation of DVL / Deactivation of the beta-catenin transactivating complex / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Dectin-1 mediated noncanonical NF-kB signaling / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Fanconi Anemia Pathway / Iron uptake and transport / Negative regulation of FGFR2 signaling / Negative regulation of FGFR3 signaling / Hh mutants are degraded by ERAD / Peroxisomal protein import / Degradation of AXIN / Recognition of DNA damage by PCNA-containing replication complex / Activation of NF-kappaB in B cells / Degradation of GLI1 by the proteasome / Stabilization of p53 / Regulation of TNFR1 signaling / EGFR downregulation / Termination of translesion DNA synthesis / Downregulation of SMAD2/3:SMAD4 transcriptional activity / Hedgehog ligand biogenesis / Negative regulation of FGFR4 signaling / Defective CFTR causes cystic fibrosis / G2/M Checkpoints / Negative regulation of NOTCH4 signaling / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2
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)
CitationJournal: Biochemistry / Year: 2018
Title: Characterizing Protein Dynamics with Integrative Use of Bulk and Single-Molecule Techniques.
Authors: Zhu Liu / Zhou Gong / Yong Cao / Yue-He Ding / Meng-Qiu Dong / Yun-Bi Lu / Wei-Ping Zhang / Chun Tang /
Abstract: A protein dynamically samples multiple conformations, and the conformational dynamics enables protein function. Most biophysical measurements are ensemble-based, with the observables averaged over ...A protein dynamically samples multiple conformations, and the conformational dynamics enables protein function. Most biophysical measurements are ensemble-based, with the observables averaged over all members of the ensemble. Though attainable, the decomposition of the observables to the constituent conformational states can be computationally expensive and ambiguous. Here we show that the incorporation of single-molecule fluorescence resonance energy transfer (smFRET) data resolves the ambiguity and affords protein ensemble structures that are more precise and accurate. Using K63-linked diubiquitin, we characterize the dynamic domain arrangements of the model system, with the use of chemical cross-linking coupled with mass spectrometry (CXMS), small-angle X-ray scattering (SAXS), and smFRET techniques. CXMS allows the modeling of protein conformational states that are alternatives to the crystal structure. SAXS provides ensemble-averaged low-resolution shape information. Importantly, smFRET affords state-specific populations, and the FRET distances validate the ensemble structures obtained by refining against CXMS and SAXS restraints. Together, the integrative use of bulk and single-molecule techniques affords better insight into protein dynamics and shall be widely implemented in structural biology.
Contact author
  • Zhu Liuzhu (Wuhan Institute of Physics and Mathematics of the Chinese Academy of Sciences)

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Structure visualization

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Models

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Sample

SampleName: Lys63-linked diubiquitin at pH7.4 / Specimen concentration: 2.6 mg/ml
BufferName: 20mM HEPES, 150mM NaCl / pH: 7.4
Entity #757Name: ubiquitin / Type: protein / Description: Polyubiquitin-C / Formula weight: 8.565 / Num. of mol.: 2 / Source: Homo sapiens / References: UniProt: P0CG48
Sequence:
MQIFVKTLTG KTITLEVEPS DTIENVKAKI QDKEGIPPDQ QRLIFAGKQL EDGRTLSDYN IQKESTLHLV LRLRGG

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Experimental information

BeamInstrument name: Shanghai Synchrotron Radiation Facility (SSRF) BL19U2
City: Shanghai / : China / Type of source: X-ray synchrotron / Wavelength: 0.1033 Å / Dist. spec. to detc.: 2.1 mm
DetectorName: Pilatus 1M
Scan
Title: Lys63-linked diubiquitin at pH7.4 / Measurement date: Mar 24, 2016 / Storage temperature: 25 °C / Cell temperature: 25 °C / Exposure time: 1 sec. / Number of frames: 20 / Unit: 1/A /
MinMax
Q0.0197 0.4611
Distance distribution function P(R)
Sofotware P(R): GNOM 5.0 / Number of points: 497 /
MinMax
Q0.0211598 0.265048
P(R) point1 497
R0 70
Result
Type of curve: single_conc /
ExperimentalPorod
MW13 kDa13 kDa
Volume-22 nm3

P(R)P(R) errorGuinierGuinier error
Forward scattering, I066.4 0.56 63.25 1.64
Radius of gyration, Rg2.1 nm0.01 2 nm0.15

MinMax
D-7
Guinier point4 55

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