Tag: X-ray crystallography

Jul 24 2023

Conformation-specific Synthetic Antibodies Discriminate Multiple Functional States of the Ion Channel CorA

Filed under publications

Satchal K. Erramilli, Pawel K. Dominik, Dawid Deneka , Piotr Tokarz , Sangwoo S. Kim, Bharat G. Reddy, Blazej M. Skrobek , Olivier Dalmas , Eduardo Perozo, Anthony A. Kossiakoff

J Mol Biol. 2023

PMD: 37394032 PMID: 37394032 DOI: 10.1016/j.jmb.2023.168192

CorA, the primary magnesium ion channel in prokaryotes and archaea, is a prototypical homopentameric ion channel that undergoes ion-dependent conformational transitions. CorA adopts five-fold symmetric non-conductive states in the presence of high concentrations of Mg2+, and highly asymmetric …

Antibody, CorA, ion channel, membrane protein, Phage display, synthetic antibodies, X-ray crystallography

Apr 03 2023

Characterization of synthetic antigen binding fragments targeting Toc75 for the isolation of TOC in A. thaliana and P. sativum

Filed under publications

Karthik Srinivasan, Satchal K. Erramilli, Srinivas Chakravarthy, Adrian Gonzalez, Anthony Kossiakoff, Nicholas Noinaj

Structure. 2023 Mar 17; S0969-2126(23)00078-3.

PMID: 36977410 DOI: 10.1016/j.str.2023.03.002

Roughly 95% of the proteins that make up the chloroplast must be imported from the cytoplasm. The machinery responsible for the translocation of these cargo proteins is called the translocon at the outer …

chloroplast, cryo-EM, membrane protein, Phage display, plants, plastid, protein translocation, X-ray crystallography

Feb 13 2023

Isoform- and ligand-specific modulation of the adhesion GPCR ADGRL3/Latrophilin3 by a synthetic binder

Filed under publications

Szymon P Kordon, Przemysław Dutka, Justyna M Adamska, Sumit J Bandekar, Katherine Leon, Satchal K Erramilli, Brock Adams, Jingxian Li, Anthony A Kossiakoff, Demet Araç

Nat Commun. 2023 Feb 6

PMID: 36746957 PMCID: PMC9902482 DOI: 10.1038/s41467-023-36312-7

Adhesion G protein-coupled receptors (aGPCRs) are cell-surface proteins with large extracellular regions that bind to multiple ligands to regulate …

Phage display, X-ray crystallography

Jul 05 2022

Architecture of the cytoplasmic face of the nuclear pore

Filed under publications

Christopher J Bley, Si Nie, George W Mobbs, Stefan Petrovic, Anna T Gres, Xiaoyu Liu, Somnath Mukherjee, Sho Harvey, Ferdinand M Huber, Daniel H Lin, Bonnie Brown, Aaron W Tang, Emily J Rundlet, Ana R Correia, Shane Chen, Saroj G Regmi, Taylor A Stevens, Claudia A Jette, Mary Dasso, Alina Patke, Alexander F Palazzo, Anthony …

Antibody, cryo-EM, Phage display, X-ray crystallography

Jul 05 2022

Quaternary structure independent folding of voltage-gated ion channel pore domain subunits

Filed under publications

Cristina Arrigoni, Marco Lolicato, David Shaya, Ahmed Rohaim, Felix Findeisen, Lam-Kiu Fong, Claire M Colleran, Pawel Dominik, Sangwoo S Kim, Jonathan P Schuermann, William F DeGrado, Michael Grabe, Anthony A Kossiakoff, Daniel L Minor

Nat Struct Mol Biol. 2022 Jun;29(6):537-548.

PMID: 35655098 DOI: 10.1038/s41594-022-00775-x

Every voltage-gated ion channel (VGIC) has a pore domain (PD) made from …

Fabs, Membrane biophysics, Phage display, Quaternary structure, X-ray crystallography

2023 NAS Election
May 3, 2023
News from the National Academy of Sciences Newly elected member Anthony A. Kossiakoff; Professor, Department of Biochemistry and Molecular Biology, The University of Chicago Three University of Chicago faculty members elected to the National Academy of Sciences in 2023
Recombinant Antibody Network Partners with Bristol Myers Squibb to Develop Novel Therapies
March 1, 2021
The Recombinant Antibody Network (RAN), a consortium comprising research groups from UC San Francisco (UCSF), the University of Chicago, and the University of Toronto have expanded a previous research collaboration with Bristol Myers Squibb, aimed to create and develop high-performance recombinant antibodies against diverse targets in human cells. The RAN was founded in 2012 by … Continue reading
Patent of the Week: Improving the Performance of Antibody Fragments
July 6, 2020
Patent-of-the-week-improving-the-performance-of-antibody-fragments Antibody fragments, including Fabs, which bind to immune response-triggering substances, or antigens, have demonstrated utility in various research and diagnostic applications. However, their structure limits their use, so researchers have engineered a protein that can be tethered to Fabs to expand their functionality. The inventors, including Anthony Kossiakoff, a professor of biochemistry and molecular … Continue reading
Anthony Kossiakoff, University of Chicago 2019 Christian B. Anfinsen Award Winner
January 2, 2020
The Christian B. Anfinsen Award- Sponsored by The Protein Society, recognizes technological achievement or significant methodological advances in the field of protein science. The recipient of this award in 2019 is Professor Anthony Kossiakoff (University of Chicago). Professor Kossiakoff’s achievements have had broad and sustained impact through the development of innovative technologies and major discoveries … Continue reading
Absolute Antibody Partners with the Recombinant Antibody Network to Facilitate Access to Engineered Recombinant Antibodies
December 11, 2019
Absolute Antibody Ltd., an industry-leading provider of recombinant antibody products and services, has announced a partnership with the Recombinant Antibody Network (RAN), a consortium of three expert centers at the University of Chicago, University of Toronto, and UC San Francisco (UCSF) with a common goal to generate recombinant antibodies at a proteome-wide scale.

Tag: X-ray crystallography

Conformation-specific Synthetic Antibodies Discriminate Multiple Functional States of the Ion Channel CorA

Characterization of synthetic antigen binding fragments targeting Toc75 for the isolation of TOC in A. thaliana and P. sativum

Isoform- and ligand-specific modulation of the adhesion GPCR ADGRL3/Latrophilin3 by a synthetic binder

Architecture of the cytoplasmic face of the nuclear pore

Quaternary structure independent folding of voltage-gated ion channel pore domain subunits

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2023 NAS Election

Recombinant Antibody Network Partners with Bristol Myers Squibb to Develop Novel Therapies

Patent of the Week: Improving the Performance of Antibody Fragments

Anthony Kossiakoff, University of Chicago 2019 Christian B. Anfinsen Award Winner

Absolute Antibody Partners with the Recombinant Antibody Network to Facilitate Access to Engineered Recombinant Antibodies