Amyloid P peptide (AP) 1-40 and AP 1-42 (Quality Controlled Biochemicals, Hopkington, MA) primarily FITC-labeled are being evaluated by electrospray (ESI) mass spectrometry and infrared (IR, Er-YAG laser, 2.94 pm) and ultraviolet (UV, nitrogen laser, 337 rim) matrix-assisted laser desorption/ionization (MALDI) mass spectrometry for (1) purity, (2) size and polymerization state, and if needed for (3) oxidation state of methionine. Recent studies also indicate that it should be possible to use ESI MS to evaluate (4) ability to seed fibril formation and (5) length of time in culture medium prior to aggregation. Analyzed AP will be used to study passage of AP to the endothelial and smooth muscle cell layer and to monitor AP deposition using our novel blood brain barrier model system.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR010888-03
Application #
6123252
Study Section
Project Start
1998-07-01
Project End
1999-06-30
Budget Start
Budget End
Support Year
3
Fiscal Year
1998
Total Cost
Indirect Cost
Name
Boston University
Department
Type
DUNS #
604483045
City
Boston
State
MA
Country
United States
Zip Code
02118
Lu, Yanyan; Jiang, Yan; Prokaeva, Tatiana et al. (2017) Oxidative Post-Translational Modifications of an Amyloidogenic Immunoglobulin Light Chain Protein. Int J Mass Spectrom 416:71-79
Sethi, Manveen K; Zaia, Joseph (2017) Extracellular matrix proteomics in schizophrenia and Alzheimer's disease. Anal Bioanal Chem 409:379-394
Hu, Han; Khatri, Kshitij; Zaia, Joseph (2017) Algorithms and design strategies towards automated glycoproteomics analysis. Mass Spectrom Rev 36:475-498
Ji, Yuhuan; Bachschmid, Markus M; Costello, Catherine E et al. (2016) S- to N-Palmitoyl Transfer During Proteomic Sample Preparation. J Am Soc Mass Spectrom 27:677-85
Hu, Han; Khatri, Kshitij; Klein, Joshua et al. (2016) A review of methods for interpretation of glycopeptide tandem mass spectral data. Glycoconj J 33:285-96
Pu, Yi; Ridgeway, Mark E; Glaskin, Rebecca S et al. (2016) Separation and Identification of Isomeric Glycans by Selected Accumulation-Trapped Ion Mobility Spectrometry-Electron Activated Dissociation Tandem Mass Spectrometry. Anal Chem 88:3440-3
Wang, Yun Hwa Walter; Meyer, Rosana D; Bondzie, Philip A et al. (2016) IGPR-1 Is Required for Endothelial Cell-Cell Adhesion and Barrier Function. J Mol Biol 428:5019-5033
Srinivasan, Srimathi; Chitalia, Vipul; Meyer, Rosana D et al. (2015) Hypoxia-induced expression of phosducin-like 3 regulates expression of VEGFR-2 and promotes angiogenesis. Angiogenesis 18:449-62
Yu, Xiang; Sargaeva, Nadezda P; Thompson, Christopher J et al. (2015) In-Source Decay Characterization of Isoaspartate and ?-Peptides. Int J Mass Spectrom 390:101-109
Steinhorn, Benjamin S; Loscalzo, Joseph; Michel, Thomas (2015) Nitroglycerin and Nitric Oxide--A Rondo of Themes in Cardiovascular Therapeutics. N Engl J Med 373:277-80

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