Abstract:
:C646 inhibits the lysine acetyltransferases (KATs) p300 and CBP and represents the most potent and selective small molecule KAT inhibitor identified to date. To gain insights into the cellular activity of this epigenetic probe, we applied chemoproteomics to identify covalent targets of the C646 chemotype. Modeling and synthetic derivatization was used to develop a clickable analogue (C646-yne) that inhibits p300 similarly to the parent compound and enables enrichment of bound proteins. LC-MS/MS identified the major covalent targets of C646-yne as highly abundant cysteine-containing proteins, and follow-up studies found that C646 can inhibit tubulin polymerization in vitro. Finally, we provide evidence that thiol reactivity of C646 may limit its ability to antagonize acetylation in cells. These findings should enable a more precise interpretation of studies utilizing C646 as a chemical probe of KAT activity and suggest that an underappreciated liability of electrophile-containing inhibitors is a reduction in their cellular potency due to consumption by abundant protein and metabolite thiol sinks.
journal_name
ACS Med Chem Lettjournal_title
ACS medicinal chemistry lettersauthors
Shrimp JH,Sorum AW,Garlick JM,Guasch L,Nicklaus MC,Meier JLdoi
10.1021/acsmedchemlett.5b00385subject
Has Abstractpub_date
2015-10-31 00:00:00pages
151-5issue
2issn
1948-5875journal_volume
7pub_type
杂志文章abstract::Design and synthesis of prodrugs of promising drug candidates represents a valid strategy to overcome the lack of favorable ADME properties, in particular aqueous solubility and bioavailability. We report herein the successful application of this strategy with two representative pyrazolo[3,4-d]pyrimidine derivatives (...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/ml4000782
更新日期:2013-05-20 00:00:00
abstract::A series of urea/thiourea substituted benzoxaboroles was investigated for the inhibition of the three carbonic anhydrases encoded by Vibrio cholerae (VchCAα, VchCAβ, and VchCAγ). In particular, benzoxaborole derivatives were here first assayed for the inhibition of a γ-class CA, extending the panel of CA classes that ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.0c00403
更新日期:2020-09-09 00:00:00
abstract::Bacterial resistance has become a worldwide concern after the emergence of metallo-β-lactamases (MBLs). They represent one of the major mechanisms of bacterial resistance against beta-lactam antibiotics. Among MBLs, New Delhi metallo-β-lactamase-1 NDM-1, the most prevalent type, is extremely efficient in inactivating ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.7b00428
更新日期:2017-11-26 00:00:00
abstract::A series of 12N-substituted sophoridinamine derivatives were synthesized and evaluated for their cytotoxic activities in human HepG2 hepatoma cells. Structure-activity relationship revealed that introduction of a suitable arylidene or arylethyl at the N'-end could greatly enhance antiproliferation potency. Among them,...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.6b00466
更新日期:2017-01-05 00:00:00
abstract::Translational readthrough-inducing drugs (TRIDs) rescue the functional full-length protein expression in genetic diseases, such as cystic fibrosis, caused by premature termination codons (PTCs). Small molecules have been developed as TRIDs to trick the ribosomal machinery during recognition of the PTC. Herein we repor...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.9b00609
更新日期:2020-02-18 00:00:00
abstract::Small molecule inhibitors of the HIV-1 nucleocapsid protein (NC) are considered as promising agents in the treatment of HIV/AIDS. In an effort to exploit the privileged 2-amino-4-phenylthiazole moiety in NC inhibition, here we conceived, synthesized, and tested in vitro 18 NC inhibitors (NCIs) bearing a double functio...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.8b00506
更新日期:2018-12-07 00:00:00
abstract::The Bromodomain and Extra Terminal (BET) family of proteins recognize post-translational N-ε-acetylated lysine modifications, regulating transcription as "reader" proteins. Bromodomain inhibitors are interesting targets for the development of potential cancer, inflammation, and heart disease treatments. Several dual k...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.9b00227
更新日期:2019-08-02 00:00:00
abstract::Two series of novel LOXL2 enzyme inhibitors are described: benzylamines substituted with electron withdrawing groups at the para-position and 2-substituted pyridine-4-ylmethanamines. The most potent compound, (2-chloropyridin-4-yl)methanamine 20 (hLOXL2 IC50 = 126 nM), was shown to be selective for LOXL2 over LOX and ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.7b00014
更新日期:2017-03-01 00:00:00
abstract::The N-methyl-d-aspartate receptor (NMDAR) is an ionotropic glutamate receptor, gated by the endogenous coagonists glutamate and glycine, permeable to Ca2+ and Na+. NMDAR dysfunction is associated with numerous neurological and psychiatric disorders, including schizophrenia, depression, and Alzheimer's disease. Recentl...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.6b00388
更新日期:2016-10-31 00:00:00
abstract::The influence of ionization states of hydroxamates and retrohydroxamates and the presence of zinc ions in the active site were investigated using the wild-type and E402Q mutant of MMP-9. The deprotonated hydroxamates showed a significantly enhanced enrichment factor in the presence of zinc ions. A pharmacophore model ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/ml200031m
更新日期:2011-03-29 00:00:00
abstract::Fluorescent biosensors constitute potent tools for probing biomolecules in their natural environment and for visualizing dynamic processes in complex biological samples, living cells, and organisms. They are well suited for highlighting molecular alterations associated with pathological disorders, thereby offering mea...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/ml400472e
更新日期:2013-12-18 00:00:00
abstract::GSK2798745, a clinical candidate, was identified as an inhibitor of the transient receptor potential vanilloid 4 (TRPV4) ion channel for the treatment of pulmonary edema associated with congestive heart failure. We discuss the lead optimization of this novel spirocarbamate series and specifically focus on our strategi...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.9b00274
更新日期:2019-07-15 00:00:00
abstract::The design, synthesis, biological evaluation, and X-ray structural studies are reported for a series of highly potent HIV-1 protease inhibitors. The inhibitors incorporated stereochemically defined amide-based bicyclic and tricyclic ether derivatives as the P2 ligands with (R)-hydroxyethylaminesulfonamide transition-s...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.9b00670
更新日期:2020-03-03 00:00:00
abstract::GPR40 is a G-protein-coupled receptor which mediates fatty acid-induced glucose-stimulated insulin secretion from pancreatic beta cells and incretion release from enteroendocrine cells of the small intestine. GPR40 full agonists exhibit superior glucose lowering compared to partial agonists in preclinical species due ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.8b00444
更新日期:2018-12-03 00:00:00
abstract::Insulin-regulated aminopeptidase (IRAP) is a transmembrane zinc metallopeptidase with many important biological functions and an emerging pharmacological target. Although previous structural studies have given insight on how IRAP recognizes linear peptides, how it recognizes its physiological cyclic ligands remains el...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.0c00172
更新日期:2020-06-02 00:00:00
abstract::Protein kinases are key regulators that govern complex cellular processes. Dysregulation of kinase signaling is associated in many human diseases, particularly cancers and developmental and metabolic disorders. Tyrosine kinase inhibitors have achieved great success in molecular targeted therapies for cancer and now is...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/ml500091p
更新日期:2014-03-06 00:00:00
abstract::Abdominal pain and abnormal bowel habits represent major symptoms for irritable bowel syndrome (IBS) patients that are not adequately managed. Although the etiology of IBS is not completely understood, many of the functions of the gastrointestinal (GI) tract are regulated by the enteric nervous system (ENS). Inflammat...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.8b00035
更新日期:2018-05-24 00:00:00
abstract::Multitarget anti-inflammatory drugs interfering with the arachidonic acid cascade exhibit superior efficacy. In this study, a prototype dual inhibitor of soluble epoxide hydrolase (sEH) and LTA4 hydrolase (LTA4H) with submicromolar activity toward both targets has been designed and synthesized. Preliminary structure-a...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.9b00330
更新日期:2019-10-30 00:00:00
abstract::Approximately 1.7 million Americans develop hospital associated infections each year, resulting in more than 98,000 deaths. One of the main contributors to such infections is the Gram-negative pathogen Acinetobacter baumannii. Recently, it was reported that aryl 2-aminoimidazole (2-AI) compounds potentiate macrolide a...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.0c00276
更新日期:2020-08-12 00:00:00
abstract::In addition to its therapeutic value as a chemotherapy drug, gemcitabine is of ongoing interest to the scientific community for its broad-spectrum antiviral activity. Herein the synthesis of 4'-methoxy- and 4'-fluoro-substituted gemcitabine analogues along with their phosphoramidate prodrugs is described. Among these ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.0c00485
更新日期:2020-12-09 00:00:00
abstract::The identification of Pim-1/2 kinase overexpression in B-cell malignancies suggests that Pim kinase inhibitors will have utility in the treatment of lymphoma, leukemia, and multiple myeloma. Starting from a moderately potent quinoxaline-dihydropyrrolopiperidinone lead, we recognized the potential for macrocyclization ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.5b00403
更新日期:2016-02-12 00:00:00
abstract::ROMK, the renal outer medullary potassium channel, is involved in potassium recycling at the thick ascending loop of Henle and potassium secretion at the cortical collecting duct in the kidney nephron. Because of this dual site of action, selective inhibitors of ROMK are expected to represent a new class of diuretics/...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.6b00122
更新日期:2016-05-12 00:00:00
abstract::A series of aryl hydroxamates recently have been disclosed as irreversible inhibitors of kynurenine amino transferase II (KAT II), an enzyme that may play a role in schizophrenia and other psychiatric and neurological disorders. The utilization of structure-activity relationships (SAR) in conjunction with X-ray crysta...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/ml300237v
更新日期:2012-10-24 00:00:00
abstract::A new class of potent matrix metalloproteinase (MMP) inhibitors designed by structure-based optimization of the well-known arylsulfonamide scaffold is presented. Molecules show an ethylene linker connecting the sulfonamide group with the P1' aromatic portion and a d-proline residue bearing the zinc-binding group. The ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/ml300446a
更新日期:2013-05-14 00:00:00
abstract::A series of TRPA1 antagonists is described which has as its core structure an indazole moiety. The physical properties and in vitro DMPK profiles are discussed. Good in vivo exposure was obtained with several analogs, allowing efficacy to be assessed in rodent models of inflammatory pain. Two compounds showed signific...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.7b00140
更新日期:2017-05-18 00:00:00
abstract::DNA methylation is known as the prima donna epigenetic mark for its critical role in regulating local gene transcription. Changes in the landscape of DNA methylation across the genome occur during cellular transition, such as differentiation and altered neuronal plasticity, and become dysregulated in disease states su...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.8b00474
更新日期:2019-01-31 00:00:00
abstract::Somatic point mutations at a key arginine residue (R132) within the active site of the metabolic enzyme isocitrate dehydrogenase 1 (IDH1) confer a novel gain of function in cancer cells, resulting in the production of d-2-hydroxyglutarate (2-HG), an oncometabolite. Elevated 2-HG levels are implicated in epigenetic alt...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.7b00421
更新日期:2018-01-19 00:00:00
abstract::Acetylcholinesterase is a critical enzyme that regulates neurotransmission by degrading the neurotransmitter acetylcholine in synapses of the nervous system. It is an important target for both therapeutic drugs that treat Alzheimer's disease and chemical warfare agents that cripple the nervous system and cause death t...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/ml400304w
更新日期:2013-09-23 00:00:00
abstract::Despite several years of research, only a handful of β-secretase (BACE) 1 inhibitors have entered clinical trials as potential therapeutics against Alzheimer's disease. The intrinsic basic nature of low molecular weight, amidine-containing BACE 1 inhibitors makes them far from optimal as central nervous system drugs. ...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.9b00181
更新日期:2019-07-02 00:00:00
abstract::Here, we predicted the potential halogen bonding interaction between compound 2 and the 5-hydroxytryptamine 2B (5-HT2B) receptor and systematically assessed this interaction via structure-activity relationship analysis and molecular dynamics simulations. A physics-based computational protocol was then developed to fur...
journal_title:ACS medicinal chemistry letters
pub_type: 杂志文章
doi:10.1021/acsmedchemlett.8b00300
更新日期:2018-10-01 00:00:00