Abstract

We are developing sensitive mass spectrometric tools for defining oligosaccharide structures - especially for those derived from glycoproteins. The task is challenging because of the intrinsic complexity of oligosaccharide structures and because the mass spectrometric response for underivitized carbohydrates is frequently low. We are investigating a new method for derivatization of oligosaccharides. In this method, an oligosaccharide is efficiently ligated to a highly basic aminooxypeptide by the oxime formation reaction. This derivitization method has increased the MALDI-MS sensitivity by up to three orders of magnitude and has allowed us to successfully impliment a powerful glycosidase array carbohydrate structural analysis stategy (Zhao, Kent & Chait, Proc. Natl. Acad Sci. 94, 1629-1633, 1997).

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR000862-25
Application #
6279535
Study Section
Project Start
1997-12-01
Project End
1998-11-30
Budget Start
1997-10-01
Budget End
1998-09-30
Support Year
25
Fiscal Year
1998
Total Cost
Indirect Cost

  Institution

Name
Rockefeller University
Department
Type
DUNS #
071037113
City
New York
State
NY
Country
United States
Zip Code
10065

  Publications

Manning, Lois R; Popowicz, Anthony M; Padovan, Julio C et al. (2017) Gel filtration of dilute human embryonic hemoglobins reveals basis for their increased oxygen binding. Anal Biochem 519:38-41
Boice, Michael; Salloum, Darin; Mourcin, Frederic et al. (2016) Loss of the HVEM Tumor Suppressor in Lymphoma and Restoration by Modified CAR-T Cells. Cell 167:405-418.e13
Chait, Brian T; Cadene, Martine; Olinares, Paul Dominic et al. (2016) Revealing Higher Order Protein Structure Using Mass Spectrometry. J Am Soc Mass Spectrom 27:952-65
Krutchinsky, Andrew N; Padovan, Júlio C; Cohen, Herbert et al. (2015) Maximizing ion transmission from atmospheric pressure into the vacuum of mass spectrometers with a novel electrospray interface. J Am Soc Mass Spectrom 26:649-58
Mast, Fred D; Rachubinski, Richard A; Aitchison, John D (2015) Signaling dynamics and peroxisomes. Curr Opin Cell Biol 35:131-6
Krutchinsky, Andrew N; Padovan, Júlio C; Cohen, Herbert et al. (2015) Optimizing electrospray interfaces using slowly diverging conical duct (ConDuct) electrodes. J Am Soc Mass Spectrom 26:659-67
Oricchio, Elisa; Papapetrou, Eirini P; Lafaille, Fabien et al. (2014) A cell engineering strategy to enhance the safety of stem cell therapies. Cell Rep 8:1677-1685
Zhong, Yu; Morris, Deanna H; Jin, Lin et al. (2014) Nrbf2 protein suppresses autophagy by modulating Atg14L protein-containing Beclin 1-Vps34 complex architecture and reducing intracellular phosphatidylinositol-3 phosphate levels. J Biol Chem 289:26021-37
Xue, John Z; Woo, Eileen M; Postow, Lisa et al. (2013) Chromatin-bound Xenopus Dppa2 shapes the nucleus by locally inhibiting microtubule assembly. Dev Cell 27:47-59
Indiani, Chiara; O'Donnell, Mike (2013) A proposal: Source of single strand DNA that elicits the SOS response. Front Biosci (Landmark Ed) 18:312-23

Showing the most recent 10 out of 67 publications