4IXU

Crystal structure of human Arginase-2 complexed with inhibitor 11d: {(5R)-5-amino-5-carboxy-5-[(3-endo)-8-(3,4-dichlorobenzyl)-8-azabicyclo[3.2.1]oct-3-yl]pentyl}(trihydroxy)borate(1-)

Summary for 4IXU

• Entry DOI: 10.2210/pdb4ixu/pdb
• Related: 1D3V 1PQ3 4IXV
• Descriptor: Arginase-2, mitochondrial, MANGANESE (II) ION, BENZAMIDINE, ... (6 entities in total)
• Functional Keywords: metalloenzyme, alpha/beta fold, hydrolase, arginine metabolism, manganese, boronate, mitochondrion, hydrolase-hydrolase inhibitor complex, hydrolase/hydrolase inhibitor
• Biological source: Homo sapiens (human)
• Cellular location: Mitochondrion: P78540
• Total number of polymer chains: 3
• Total formula weight: 102234.39

Authors

Cousido-Siah, A.,Mitschler, A.,Ruiz, F.X.,Whitehouse, D.,Beckett, P.,Van Zandt, M.C.,Ji, M.K.,Ryder, T.,Jagdmann, R.,Andreoli, M.,Olczak, J.,Mazur, M.,Czestkowski, W.,Piotrowska, W.,Schroeter, H.,Golebiowski, A.,Podjarny, A. (deposition date: 2013-01-28, release date: 2013-12-11, Last modification date: 2023-09-20)

Primary citation

Golebiowski, A.,Whitehouse, D.,Beckett, R.P.,Van Zandt, M.,Ji, M.K.,Ryder, T.R.,Jagdmann, E.,Andreoli, M.,Lee, Y.,Sheeler, R.,Conway, B.,Olczak, J.,Mazur, M.,Czestkowski, W.,Piotrowska, W.,Cousido-Siah, A.,Ruiz, F.X.,Mitschler, A.,Podjarny, A.,Schroeter, H.
Synthesis of quaternary alpha-amino acid-based arginase inhibitors via the Ugi reaction.
Bioorg.Med.Chem.Lett., 23:4837-4841, 2013

PubMed Abstract: The Ugi reaction has been successfully applied to the synthesis of novel arginase inhibitors. In an effort to decrease conformational flexibility of the previously reported series of 2-amino-6-boronohexanoic acid (ABH) analogs 1, we designed and synthesized a series of compounds, 2, in which a piperidine ring is linked directly to a quaternary amino acid center. Further improvement of in vitro activity was achieved by adding two carbon bridge in the piperidine ring, that is, tropane analogs 11. These improvements in activity are rationalized by X-ray crystallography analysis, which show that the tropane ring nitrogen atom moves into direct contact with Asp202 (arginase II numbering). The synthetic routes described here enabled the design of novel arginase inhibitors with improved potency and markedly different physico-chemical properties compared to ABH. Compound 11c represents the most in vitro active arginase inhibitor reported to date.

PubMed: 23886684
DOI: 10.1016/j.bmcl.2013.06.092

Experimental method

X-RAY DIFFRACTION (1.9 Å)