909629

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
• Empirical Formula (Hill Notation): C₂₄H₃₃N₅O₁₂S₂
• CAS Number: 1704097-02-8
• Molecular Weight: 647.68
• UNSPSC Code: 12161502

Properties

• Quality Level: 100
• Assay: ≥95%
• form: powder
• availability: available only in USA
• storage temp.: 2-8°C

Description

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.

Other Notes

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

A New in Vivo Cross-linking Mass Spectrometry Platform to Define Protein-Protein Interactions in Living Cells

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

Legal Information

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

Safety Information

• Storage Class Code: 4.1B - Flammable solid hazardous materials
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable