7x8w

From Proteopedia

(Difference between revisions)
Jump to: navigation, search
Current revision (06:55, 21 November 2024) (edit) (undo)
 
Line 4: Line 4:
== Structural highlights ==
== Structural highlights ==
<table><tr><td colspan='2'>[[7x8w]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Severe_acute_respiratory_syndrome_coronavirus_2 Severe acute respiratory syndrome coronavirus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7X8W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7X8W FirstGlance]. <br>
<table><tr><td colspan='2'>[[7x8w]] is a 3 chain structure with sequence from [https://en.wikipedia.org/wiki/Homo_sapiens Homo sapiens] and [https://en.wikipedia.org/wiki/Severe_acute_respiratory_syndrome_coronavirus_2 Severe acute respiratory syndrome coronavirus 2]. Full crystallographic information is available from [http://oca.weizmann.ac.il/oca-bin/ocashort?id=7X8W OCA]. For a <b>guided tour on the structure components</b> use [https://proteopedia.org/fgij/fg.htm?mol=7X8W FirstGlance]. <br>
-
</td></tr><tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
+
</td></tr><tr id='method'><td class="sblockLbl"><b>[[Empirical_models|Method:]]</b></td><td class="sblockDat" id="methodDat">Electron Microscopy, [[Resolution|Resolution]] 3.1&#8491;</td></tr>
 +
<tr id='ligand'><td class="sblockLbl"><b>[[Ligand|Ligands:]]</b></td><td class="sblockDat" id="ligandDat"><scene name='pdbligand=BMA:BETA-D-MANNOSE'>BMA</scene>, <scene name='pdbligand=FUC:ALPHA-L-FUCOSE'>FUC</scene>, <scene name='pdbligand=MAN:ALPHA-D-MANNOSE'>MAN</scene>, <scene name='pdbligand=NAG:N-ACETYL-D-GLUCOSAMINE'>NAG</scene></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7x8w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7x8w OCA], [https://pdbe.org/7x8w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7x8w RCSB], [https://www.ebi.ac.uk/pdbsum/7x8w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7x8w ProSAT]</span></td></tr>
<tr id='resources'><td class="sblockLbl"><b>Resources:</b></td><td class="sblockDat"><span class='plainlinks'>[https://proteopedia.org/fgij/fg.htm?mol=7x8w FirstGlance], [http://oca.weizmann.ac.il/oca-bin/ocaids?id=7x8w OCA], [https://pdbe.org/7x8w PDBe], [https://www.rcsb.org/pdb/explore.do?structureId=7x8w RCSB], [https://www.ebi.ac.uk/pdbsum/7x8w PDBsum], [https://prosat.h-its.org/prosat/prosatexe?pdbcode=7x8w ProSAT]</span></td></tr>
</table>
</table>
Line 11: Line 12:
<div style="background-color:#fffaf0;">
<div style="background-color:#fffaf0;">
== Publication Abstract from PubMed ==
== Publication Abstract from PubMed ==
-
The use of therapeutic neutralizing antibodies against SARS-CoV-2 infection has been highly effective. However, there remain few practical antibodies against viruses that are acquiring mutations. In this study, we created 494 monoclonal antibodies from COVID-19-convalescent patients, and identified antibodies that exhibited comparable neutralizing ability to clinically used antibodies in the neutralization assay using pseudovirus and authentic virus including variants of concerns. These antibodies have different profiles against various mutations, which were confirmed by cell-based assay and cryo-electron microscopy. To prevent antibody-dependent enhancement, N297A modification was introduced. Our antibodies showed a reduction of lung viral RNAs by therapeutic administration in a hamster model. In addition, an antibody cocktail consisting of three antibodies was also administered therapeutically to a macaque model, which resulted in reduced viral titers of swabs and lungs and reduced lung tissue damage scores. These results showed that our antibodies have sufficient antiviral activity as therapeutic candidates.
+
The use of therapeutic neutralizing antibodies against SARS-CoV-2 infection has been highly effective. However, there remain few practical antibodies against viruses that are acquiring mutations. In this study, we created 494 monoclonal antibodies from patients with COVID-19-convalescent, and identified antibodies that exhibited the comparable neutralizing ability to clinically used antibodies in the neutralization assay using pseudovirus and authentic virus including variants of concerns. These antibodies have different profiles against various mutations, which were confirmed by cell-based assay and cryo-electron microscopy. To prevent antibody-dependent enhancement, N297A modification was introduced. Our antibodies showed a reduction of lung viral RNAs by therapeutic administration in a hamster model. In addition, an antibody cocktail consisting of three antibodies was also administered therapeutically to a macaque model, which resulted in reduced viral titers of swabs and lungs and reduced lung tissue damage scores. These results showed that our antibodies have sufficient antiviral activity as therapeutic candidates.
-
Potent SARS-CoV-2 neutralizing antibodies with therapeutic effects in two animal models.,Takeshita M, Fukuyama H, Kamada K, Matsumoto T, Makino-Okamura C, Uchikubo-Kamo T, Tomabechi Y, Hanada K, Moriyama S, Takahashi Y, Ishigaki H, Nakayama M, Nguyen CT, Kitagawa Y, Itoh Y, Imai M, Maemura T, Furusawa Y, Ueki H, Iwatsuki-Horimoto K, Ito M, Yamayoshi S, Kawaoka Y, Shirouzu M, Ishii M, Saya H, Kondo Y, Kaneko Y, Suzuki K, Fukunaga K, Takeuchi T iScience. 2022 Nov 15:105596. doi: 10.1016/j.isci.2022.105596. PMID:36406861<ref>PMID:36406861</ref>
+
Potent SARS-CoV-2 neutralizing antibodies with therapeutic effects in two animal models.,Takeshita M, Fukuyama H, Kamada K, Matsumoto T, Makino-Okamura C, Uchikubo-Kamo T, Tomabechi Y, Hanada K, Moriyama S, Takahashi Y, Ishigaki H, Nakayama M, Nguyen CT, Kitagawa Y, Itoh Y, Imai M, Maemura T, Furusawa Y, Ueki H, Iwatsuki-Horimoto K, Ito M, Yamayoshi S, Kawaoka Y, Shirouzu M, Ishii M, Saya H, Kondo Y, Kaneko Y, Suzuki K, Fukunaga K, Takeuchi T iScience. 2022 Dec 22;25(12):105596. doi: 10.1016/j.isci.2022.105596. Epub 2022 , Nov 15. PMID:36406861<ref>PMID:36406861</ref>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>
From MEDLINE&reg;/PubMed&reg;, a database of the U.S. National Library of Medicine.<br>

Current revision

The SARS-CoV-2 receptor binding domain bound with the Fab fragment of a human neutralizing antibody Ab354

PDB ID 7x8w

Drag the structure with the mouse to rotate

Proteopedia Page Contributors and Editors (what is this?)

OCA

Personal tools