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909688

Sigma-Aldrich

Alkyne-A-DSBSO crosslinker

≥95%

Sinônimo(s):

Alkyne-tagged acid-cleavable disuccinimidyl bissulfoxide, Bis(2,5-dioxopyrrolidin-1-yl) 3,3′-((2-(but-3-yn-1-yl)-2-methyl-1,3-dioxane-5,5-diyl)bis(methylenesulfinyl))dipropionate, Mass spectrometry-cleavable crosslinker for studying protein-protein interactions

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About This Item

Fórmula empírica (Notação de Hill):
C25H32N2O12S2
Número CAS:
1704097-05-1
Peso molecular:
616.66
Código UNSPSC:
12161502

Ensaio

≥95%

forma

powder

disponibilidade

available only in USA

temperatura de armazenamento

2-8°C

Aplicação

Alkyne-A-DSBSO (alkyne-tagged, acid-cleavable disuccinimidyl bissulfoxide) Crosslinker is a homobifunctional, membrane-permeable, enrichable disulfoxide-containing crosslinker for analysis of protein-protein interactions (PPIs) through crosslinking mass spectrometry (XL-MS).
Alkyne-A-DSBSO possesses two N-hydroxysuccinimide (NHS) ester groups for targeting amines, a ∼14 Å spacer length, two symmetrical acid-cleavable C-S bonds, and a central bioorthogonal azide tag. After reacting with lysine (Lys) residues, the alkyne tag permits selective enrichment of crosslinked proteins or peptides with a biotin-conjugated azide probe to enhance their detection. Additionally, the post-cleavage spacer yields tagged peptides for unambiguous identification by collision-induced dissociation in tandem MS.
Alkyne-A-DSBSO Crosslinker has mapped in vivo PPIs for target protein complexes and whole proteomes from living cells. It will also be a useful proteomics tool in the quest for targeting ″undruggable″ protein targets.

Outras notas

Technology Spotlight: Cross-Linkers for Elucidation of Protein-Protein Interactions

Synthesis of two new enrichable and MS-cleavable cross-linkers to define protein–protein interactions by mass spectrometry

Informações legais

Subject to US Patent Application #15/275,001 of the Regents of the University of California

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Palavra indicadora

Danger

Frases de perigo

H242

Classificações de perigo

Self-react. C

Código de classe de armazenamento

5.2 - Organic peroxides and self-reacting hazardous materials

Classe de risco de água (WGK)

WGK 3

Certificados de análise (COA)

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Anthony M Burke et al.
Organic & biomolecular chemistry, 13(17), 5030-5037 (2015-04-01)
The cross-linking Mass Spectrometry (XL-MS) technique extracts structural information from protein complexes without requiring highly purified samples, crystallinity, or large amounts of material. However, there are challenges to applying the technique to protein complexes in vitro, and those challenges become

Artigos

MS-Cleavable Cross-Linkers

Sulfoxide-containing MS-cleavable cross-linkers capture protein-protein interactions in native cellular environments, aiding PPI identification.

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