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930423

Sigma-Aldrich

CP-alkyne

≥95%

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Synonym(s):
2,4,6-Trimethyl-1-(methyl((pent-4-yn-1-yloxy)carbonyl)amino)pyridin-1-ium tetrafluoroborate
Empirical Formula (Hill Notation):
C15H21BF4N2O2
Molecular Weight:
348.14
UNSPSC Code:
41116164
NACRES:
NA.22

description

Application: Chemoproteomics

Quality Level

assay

≥95%

form

liquid

storage temp.

−20°C

SMILES string

CC1=CC(C)=[N+](N(C(OCCCC#C)=O)C)C(C)=C1.F[B-](F)(F)F

Application

CP-alkyne is a probe that can be used to photochemically label tryptophans. A method was developed using cysteine-reactive compounds including this one to allow for unbiased analysis of proteomic data in quantitative applications (Zanon et al. 2021). The method uses light or heavy labelling with the isotopically labelled desthiobiotin azide (isoDTB) tag for mass spectrometry analysis (Zanon et al. 2020). Analysis then uses the isotopic tandem orthogonal proteolysis activity-based protein profiling (isoTOP-ABPP) workflow (Weerapana et al. 2010, Backus et al. 2016)

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Profiling the proteome-wide selectivity of diverse electrophiles
Patrick R. A. Zanon ,Fengchao Yu, et al
ChemRxiv : the preprint server for chemistry (2021)
Romain Tessier et al.
Angewandte Chemie (International ed. in English), 59(27), 10961-10970 (2020-04-02)
Current approaches to introduce terminal alkynes for bioorthogonal reactions into biomolecules still present limitations in terms of either reactivity, selectivity, or adduct stability. We present a method for the ethynylation of cysteine residues based on the use of ethynylbenziodoxolone (EBX)
Zarko V Boskovic et al.
ACS chemical biology, 11(7), 1844-1851 (2016-04-12)
Unbiased binding assays involving small-molecule microarrays were used to identify compounds that display unique patterns of selectivity among members of the zinc-dependent histone deacetylase family of enzymes. A novel, hydroxyquinoline-containing compound, BRD4354, was shown to preferentially inhibit activity of HDAC5
De Lin et al.
Chemical research in toxicology, 21(12), 2361-2369 (2009-06-24)
The biotin-tagged electrophiles 1-biotinamido-4-(4'-[maleimidoethylcyclohexane]-carboxamido)butane (BMCC) and N-iodoacetyl-N-biotinylhexylenediamine (IAB) have been used as model electrophile probes in complex proteomes to identify protein targets associated with chemical toxicity. Whereas IAB activates stress signaling and apoptosis in HEK293 cells, BMCC does not. Cysteine
A H El-Khatib et al.
Journal of mass spectrometry : JMS, 52(8), 543-549 (2017-06-04)
1,4,7,10-Tetraazacyclododecane-1,4,7,10-tetraacetic acid (DOTA) derivatives are applied in quantitative proteomics owing to their ability to react with different functional groups, to harbor lanthanoides and hence their compatibility with molecular and elemental mass spectrometry. The new DOTA derivatives, namely Ln-MeCAT-Click and Ln-DOTA-Dimedone

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