Abstract

Two-dimensional electrophoresis - MS is being used to identify the proteins from human mitochondria. To date 20 proteins have been measured and we plan to measure a large number of additional proteins. A high proportion of the proteins measured have been positively identified by comparison of the enzymatic fragmentation patterns with a fragmentation data base generated from the protein data base. In addition, we are seeking to elucidate posttranslational modifications (e.g., glycosylation, phosphorylation) with shifts in the positions of protein spots in 2-d gels. It is ultimately planned to compare the distribution of mitochondrial proteins from normal individuals with those from individuals suffering from metabolic diseases. An improved protein identification algorithm was devised and a computer program was written for this purpose. We are using the mitochondrial protein data to optimize our strategies for protein identification.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR000862-23
Application #
5221547
Study Section
Project Start
Project End
Budget Start
Budget End
Support Year
23
Fiscal Year
1996
Total Cost
Indirect Cost

  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
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
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
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

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