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909629

Sigma-Aldrich

Azide-A-DSBSO crosslinker

≥95%

Synonym(s):

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

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About This Item

Empirical Formula (Hill Notation):
C24H33N5O12S2
CAS Number:
Molecular Weight:
647.68
MDL number:
UNSPSC Code:
12161502

Quality Level

Assay

≥95%

form

powder

availability

available only in USA

storage temp.

2-8°C

Application

Azide-A-DSBSO (azide-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).
Azide-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 azide tag permits selective enrichment of crosslinked proteins or peptides with a biotin-conjugated alkyne probe to enhance their detection. Additionally, the post-cleavage spacer yields tagged peptides for unambiguous identification by collision-induced dissociation in tandem MS.
Azide-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.

Legal Information

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

Storage Class Code

4.1B - Flammable solid hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


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