- EMDB-39612: canine immunoproteasome 20S subunit in complex with compound 1 -
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基本情報
登録情報
データベース: EMDB / ID: EMD-39612
タイトル
canine immunoproteasome 20S subunit in complex with compound 1
マップデータ
試料
複合体: 20S proteasome
タンパク質・ペプチド: x 14種
リガンド: x 1種
キーワード
inhibitor / complex / proteasome / hydrolase
機能・相同性
機能・相同性情報
Regulation of ornithine decarboxylase (ODC) / Cross-presentation of soluble exogenous antigens (endosomes) / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Ubiquitin-dependent degradation of Cyclin D / AUF1 (hnRNP D0) binds and destabilizes mRNA / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / SCF(Skp2)-mediated degradation of p27/p21 / Assembly of the pre-replicative complex ...Regulation of ornithine decarboxylase (ODC) / Cross-presentation of soluble exogenous antigens (endosomes) / Autodegradation of Cdh1 by Cdh1:APC/C / APC/C:Cdc20 mediated degradation of Securin / Ubiquitin Mediated Degradation of Phosphorylated Cdc25A / Ubiquitin-dependent degradation of Cyclin D / AUF1 (hnRNP D0) binds and destabilizes mRNA / Cdc20:Phospho-APC/C mediated degradation of Cyclin A / SCF(Skp2)-mediated degradation of p27/p21 / Assembly of the pre-replicative complex / CDK-mediated phosphorylation and removal of Cdc6 / Degradation of AXIN / Autodegradation of the E3 ubiquitin ligase COP1 / G2/M Checkpoints / Asymmetric localization of PCP proteins / APC/C:Cdh1 mediated degradation of Cdc20 and other APC/C:Cdh1 targeted proteins in late mitosis/early G1 / Regulation of RUNX3 expression and activity / Regulation of RAS by GAPs / Regulation of PTEN stability and activity / Regulation of RUNX2 expression and activity / Degradation of GLI1 by the proteasome / GSK3B and BTRC:CUL1-mediated-degradation of NFE2L2 / FBXL7 down-regulates AURKA during mitotic entry and in early mitosis / Degradation of DVL / UCH proteinases / Orc1 removal from chromatin / Dectin-1 mediated noncanonical NF-kB signaling / NIK-->noncanonical NF-kB signaling / Hedgehog ligand biogenesis / TNFR2 non-canonical NF-kB pathway / Oxygen-dependent proline hydroxylation of Hypoxia-inducible Factor Alpha / Hedgehog 'on' state / Degradation of beta-catenin by the destruction complex / Activation of NF-kappaB in B cells / The role of GTSE1 in G2/M progression after G2 checkpoint / FCERI mediated NF-kB activation / CLEC7A (Dectin-1) signaling / Interleukin-1 signaling / RUNX1 regulates transcription of genes involved in differentiation of HSCs / Separation of Sister Chromatids / Downstream TCR signaling / KEAP1-NFE2L2 pathway / MAPK6/MAPK4 signaling / GLI3 is processed to GLI3R by the proteasome / ABC-family proteins mediated transport / Neddylation / Antigen processing: Ubiquitination & Proteasome degradation / Ub-specific processing proteases / proteasome core complex / immune system process / myofibril / NF-kappaB binding / proteasome endopeptidase complex / proteasome core complex, beta-subunit complex / proteasome core complex, alpha-subunit complex / threonine-type endopeptidase activity / skeletal muscle tissue development / negative regulation of inflammatory response to antigenic stimulus / : / Neutrophil degranulation / sarcomere / proteasome complex / ciliary basal body / proteolysis involved in protein catabolic process / lipopolysaccharide binding / P-body / response to virus / protein catabolic process / response to organic cyclic compound / nuclear matrix / positive regulation of NF-kappaB transcription factor activity / peptidase activity / endopeptidase activity / proteasome-mediated ubiquitin-dependent protein catabolic process / response to oxidative stress / postsynapse / nuclear body / ribosome / centrosome / ubiquitin protein ligase binding / synapse / mitochondrion / proteolysis / RNA binding / nucleoplasm / identical protein binding / nucleus / cytoplasm / cytosol 類似検索 - 分子機能
ジャーナル: Bioorg Med Chem / 年: 2024 タイトル: Optimization of α-amido boronic acids via cryo-electron microscopy analysis: Discovery of a novel highly selective immunoproteasome subunit LMP7 (β5i)/LMP2 (β1i) dual inhibitor. 著者: Yuuki Arai / Hiroaki Shitama / Masahito Yamagishi / Satoshi Ono / Akiko Kashima / Masahiro Hiraizumi / Naoki Tsuda / Koushirou Katayama / Kouji Tanaka / Yuzo Koda / Sayuka Kato / Kei Sakata / ...著者: Yuuki Arai / Hiroaki Shitama / Masahito Yamagishi / Satoshi Ono / Akiko Kashima / Masahiro Hiraizumi / Naoki Tsuda / Koushirou Katayama / Kouji Tanaka / Yuzo Koda / Sayuka Kato / Kei Sakata / Osamu Nureki / Hiroshi Miyazaki / 要旨: The immunoproteasome subunit LMP7 (β5i)/LMP2 (β1i) dual blockade has been reported to suppress B cell differentiation and activation, suggesting that the dual inhibition of LMP7/LMP2 is a promising ...The immunoproteasome subunit LMP7 (β5i)/LMP2 (β1i) dual blockade has been reported to suppress B cell differentiation and activation, suggesting that the dual inhibition of LMP7/LMP2 is a promising approach for treating autoimmune diseases. In contrast, the inhibition of the constitutive proteasome subunit β5c correlates with cytotoxicity against non-immune cells. Therefore, LMP7/LMP2 dual inhibitors with high selectivity over β5c may be desirable for treating autoimmune diseases. In this study, we present the optimization and discovery of α-amido boronic acids using cryo-electron microscopy (cryo-EM). The exploitation of structural differences between the proteasome subunits led to the identification of a highly selective LMP7/LMP2 dual inhibitor 19. Molecular dynamics simulation based on cryo-EM structures of the proteasome subunits complexed with 19 explained the inhibitory activity profile. In mice immunized with 4-hydroxy-3-nitrophenylacetyl conjugated to ovalbumin, results indicate that 19 is orally bioavailable and shows promise as potential treatment for autoimmune diseases.