- EMDB-30634: Cryo-EM structure of Ornithine transcarbamylase fused with Ubiqui... -
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Basic information
Entry
Database: EMDB / ID: EMD-30634
Title
Cryo-EM structure of Ornithine transcarbamylase fused with Ubiquitin in complex with Ubiquitin-carboxy-hydrolase-L1 crosslinked with BS3
Map data
Sample
Complex: A scaffold protein of OTC-Ub in complex with 2 UCHL1s
Complex: OTC-Ub scaffold
Complex: UCHL1
Function / homology
Function and homology information
axon target recognition / male germ cell proliferation / ornithine carbamoyltransferase / alpha-2A adrenergic receptor binding / ornithine carbamoyltransferase activity / citrulline biosynthetic process / arginine biosynthetic process via ornithine / muscle cell development / neuron projection terminus / adult walking behavior ...axon target recognition / male germ cell proliferation / ornithine carbamoyltransferase / alpha-2A adrenergic receptor binding / ornithine carbamoyltransferase activity / citrulline biosynthetic process / arginine biosynthetic process via ornithine / muscle cell development / neuron projection terminus / adult walking behavior / neuromuscular process / amino acid binding / eating behavior / axonal transport of mitochondrion / protein deubiquitination / regulation of macroautophagy / axon cytoplasm / 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 / Constitutive Signaling by NOTCH1 HD Domain Mutants / NOTCH2 Activation and Transmission of Signal to the Nucleus / Endosomal Sorting Complex Required For Transport (ESCRT) / IRAK2 mediated activation of TAK1 complex upon TLR7/8 or 9 stimulation / Regulation of FZD by ubiquitination / PTK6 Regulates RTKs and Their Effectors AKT1 and DOK1 / Negative regulation of FLT3 / TICAM1,TRAF6-dependent induction of TAK1 complex / TICAM1-dependent activation of IRF3/IRF7 / APC/C:Cdc20 mediated degradation of Cyclin B / Downregulation of ERBB4 signaling / p75NTR recruits signalling complexes / TRAF6 mediated IRF7 activation in TLR7/8 or 9 signaling / APC-Cdc20 mediated degradation of Nek2A / PINK1-PRKN Mediated Mitophagy / TRAF6-mediated induction of TAK1 complex within TLR4 complex / InlA-mediated entry of Listeria monocytogenes into host cells / Pexophagy / Regulation of innate immune responses to cytosolic DNA / VLDLR internalisation and degradation / Downregulation of ERBB2:ERBB3 signaling / NRIF signals cell death from the nucleus / Activated NOTCH1 Transmits Signal to the Nucleus / Translesion synthesis by REV1 / NF-kB is activated and signals survival / Regulation of PTEN localization / Translesion synthesis by POLK / Regulation of BACH1 activity / Synthesis of active ubiquitin: roles of E1 and E2 enzymes / Translesion synthesis by POLI / Gap-filling DNA repair synthesis and ligation in GG-NER / MAP3K8 (TPL2)-dependent MAPK1/3 activation / TICAM1, RIP1-mediated IKK complex recruitment / Downregulation of TGF-beta receptor signaling / Josephin domain DUBs / Activation of IRF3, IRF7 mediated by TBK1, IKKε (IKBKE) / negative regulation of MAP kinase activity / 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 / ubiquitin binding / 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 / Regulation of NF-kappa B signaling / NIK-->noncanonical NF-kB signaling / Ubiquitin-dependent degradation of Cyclin D / AUF1 (hnRNP D0) binds and destabilizes mRNA / Negative regulators of DDX58/IFIH1 signaling / NOTCH3 Activation and Transmission of Signal to the Nucleus / TNFR2 non-canonical NF-kB pathway / activated TAK1 mediates p38 MAPK activation / Assembly of the pre-replicative complex / response to ischemia / Vpu mediated degradation of CD4 / Deactivation of the beta-catenin transactivating complex / Degradation of DVL / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Recognition of DNA damage by PCNA-containing replication complex / Regulation of signaling by CBL / Dectin-1 mediated noncanonical NF-kB signaling / Hh mutants are degraded by ERAD / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / Fanconi Anemia Pathway / Negative regulation of FGFR3 signaling Similarity search - Function
Journal: Biochemistry / Year: 2021 Title: Direct Visualization of a 26 kDa Protein by Cryo-Electron Microscopy Aided by a Small Scaffold Protein. Authors: Yi-Hsiang Chiu / Kuang-Ting Ko / Tzu-Jing Yang / Kuen-Phon Wu / Meng-Ru Ho / Piotr Draczkowski / Shang-Te Danny Hsu / Abstract: Cryo-electron microscopy (cryo-EM)-based structure determination of small proteins is hindered by the technical challenges associated with low signal-to-noise ratios of their particle images in ...Cryo-electron microscopy (cryo-EM)-based structure determination of small proteins is hindered by the technical challenges associated with low signal-to-noise ratios of their particle images in intrinsically noisy micrographs. One solution is to attach the target protein to a large protein scaffold to increase its apparent size and, therefore, image contrast. Here we report a novel scaffold design based on a trimeric helical protein, ornithine transcarbamylase (OTC), fused to human ubiquitin. As a proof of principle, we demonstrated the ability to resolve a cryo-EM map of a 26 kDa human ubiquitin C-terminal hydrolase (UCHL1) attached to the C-terminus of ubiquitin as part of the trimeric assembly. The results revealed conformational changes in UCHL1 upon binding to ubiquitin, namely, a significant displacement of α-helix 2, which was also observed by X-ray crystallography. Our findings demonstrated the potential of the trimeric OTC scaffold design for studying a large number of ubiquitin interacting proteins by cryo-EM.
History
Deposition
Oct 23, 2020
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Header (metadata) release
May 19, 2021
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Map release
May 19, 2021
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Update
May 19, 2021
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Current status
May 19, 2021
Processing site: PDBj / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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