Abstract

Glycosyl transferases are important components of the biosynthetic system that generates and modifies glycoproteins. Inherited disorders that affect the levels or structures of the transferases can result in degenerative diseases such as Carbohydrate Deficient Glycoprotein syndrome (CDGS). In order to facilitate investigation of these pathways, rabbit GnT I and human GnT II have been expressed in a transfer vector system that secretes the hybrid enzymes from the insect cells with an attached H]H[HHOHH sequence. The signal peptide is derived from mellittin and it is expected that the signal peptidase sequence .... YIYADPM... is cleaved at its Ala-Asp linkage. The molecular weights of the expressed proteins are being checked by MALDI and ESI MS to determine whether the correct proteins have been obtained and to look for post-translational modifications.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR010888-05
Application #
6345244
Study Section
Project Start
2000-07-01
Project End
2002-06-30
Budget Start
1998-10-01
Budget End
1999-09-30
Support Year
5
Fiscal Year
2000
Total Cost
$31,191
Indirect Cost

  Institution

Name
Boston University
Department
Type
DUNS #
604483045
City
Boston
State
MA
Country
United States
Zip Code
02118

  Publications

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
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
Walsh, Erica M; Niu, MengMeng; Bergholz, Johann et al. (2015) Nutlin-3 down-regulates retinoblastoma protein expression and inhibits muscle cell differentiation. Biochem Biophys Res Commun 461:293-9
Théberge, Roger; Dikler, Sergei; Heckendorf, Christian et al. (2015) MALDI-ISD Mass Spectrometry Analysis of Hemoglobin Variants: a Top-Down Approach to the Characterization of Hemoglobinopathies. J Am Soc Mass Spectrom 26:1299-310

Showing the most recent 10 out of 253 publications