909602
DSSO crosslinker
≥95%
Synonym(s):
Bis(2,5-dioxopyrrolidin-1-yl) 3,3′-sulfinyldipropionate, Bis-(propionic acid NHS ester)-sulfoxide, Mass spectrometry-cleavable crosslinker for studying protein-protein interations
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About This Item
Empirical Formula (Hill Notation):
C14H16N2O9S
CAS Number:
Molecular Weight:
388.35
UNSPSC Code:
12161502
MDL number:
NACRES:
NA.21
Assay:
≥95%
Form:
powder
assay
≥95%
form
powder
availability
available only in USA
storage temp.
2-8°C
SMILES string
[S](=O)(CCC(=O)ON2C(=O)CCC2=O)CCC(=O)ON1C(=O)CCC1=O
InChI key
XJSVVHDQSGMHAJ-UHFFFAOYSA-N
Application
DSSO (disuccinimidyl sulfoxide) crosslinker is a homobifunctional, amine-targeting, sulfoxide-containing crosslinker for analysis of protein-protein interactions (PPIs) through crosslinking mass spectrometry (XL-MS). Membrane-permeable DSSO possesses two N-hydroxysuccinimide (NHS) esters for targeting Lys, a 10.1 Å spacer arm, and two symmetrical C-S cleavable bonds adjacent to the central sulfoxide. The post-cleavage spacer yields tagged peptides for unambiguous identification by collision-induced dissociation in tandem MS. DSSO Crosslinker provides complementary data to thiol-reactive and acidic residue-targeting reagents and will find wide utility in the elucidation of PPIs, study of proteins that function as complexes, quantification of structural dynamics, and the quest for targeting ″undruggable″ protein targets.
Other Notes
Technology Spotlight: Cross-Linkers for Elucidation of Protein-Protein Interactions
Development of a novel cross-linking strategy for fast and accurate identification of cross-linked peptides of protein complexes
Structural dynamics of the human COP9 signalosome revealed by cross-linking mass spectrometry and integrative modeling
Developing a Multiplexed Quantitative Cross-Linking Mass Spectrometry Platform for Comparative Structural Analysis of Protein Complexes
Development of a Novel Sulfoxide-Containing MS-Cleavable Homobifunctional Cysteine-Reactive Cross-Linker for Studying Protein–Protein Interactions
Developing an Acidic Residue Reactive and Sulfoxide-Containing MS-Cleavable Homobifunctional Cross-Linker for Probing Protein-Protein Interactions
Development of a novel cross-linking strategy for fast and accurate identification of cross-linked peptides of protein complexes
Structural dynamics of the human COP9 signalosome revealed by cross-linking mass spectrometry and integrative modeling
Developing a Multiplexed Quantitative Cross-Linking Mass Spectrometry Platform for Comparative Structural Analysis of Protein Complexes
Development of a Novel Sulfoxide-Containing MS-Cleavable Homobifunctional Cysteine-Reactive Cross-Linker for Studying Protein–Protein Interactions
Developing an Acidic Residue Reactive and Sulfoxide-Containing MS-Cleavable Homobifunctional Cross-Linker for Probing Protein-Protein Interactions
Legal Information
Subject to US Patent #9,222,943 and US Patent Application #15/275,001 of the Regents of the University of California
signalword
Danger
hcodes
Hazard Classifications
Self-react. C
Storage Class
5.2 - Organic peroxides and self-reacting hazardous materials
wgk
WGK 3
Regulatory Information
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Articles
Sulfoxide-containing MS-cleavable cross-linkers capture protein-protein interactions in native cellular environments, aiding PPI identification.
Clinton Yu et al.
Analytical chemistry, 88(20), 10301-10308 (2016-10-19)
Cross-linking mass spectrometry (XL-MS) represents a recently popularized hybrid methodology for defining protein-protein interactions (PPIs) and analyzing structures of large protein assemblies. In particular, XL-MS strategies have been demonstrated to be effective in elucidating molecular details of PPIs at the
Tara K Bartolec et al.
Analytical chemistry, 92(2), 1874-1882 (2019-12-19)
Saccharomyces cerevisiae has the most comprehensively characterized protein-protein interaction network, or interactome, of any eukaryote. This has predominantly been generated through multiple, systematic studies of protein-protein interactions by two-hybrid techniques and of affinity-purified protein complexes. A pressing question is to
Daniela-Lee Smith et al.
Analytical chemistry, 90(15), 9101-9108 (2018-07-14)
This study investigated the enzyme-substrate interaction between Saccharomyces cerevisiae arginine methyltransferase Hmt1p and nucleolar protein Npl3p, using chemical cross linking/mass spectrometry (XL/MS). We show that XL/MS can capture transient interprotein interactions that occur during the process of methylation, involving a