Abstract

This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator.
The aim of the present study is to determine the glycan structure and the positions of glycosylation site(s) on the recombinant alpha1 antitrypsin, ?1PI. In this study, A1PI was expressed in Aspergillus niger and loaded in SDS-PAGE and stained with Coomassie Blue. The two main bands were excised from the gel, and the glycan structure of each fraction (band) was investigated separately. The released glycans were analyzed by HPAEC, MALDI/TOF-MS, NSI-MSn, and GC-MS. We found that the recombinant a1PI, in both pools, contained heterogeneous mixture of high-mannose type N-glycans substituted with several terminal Galactofuranoses but the proportions were different. Pool B contains higher ratio of the longer glycans, whereas pool D contained higher portions of shorter glycans. In 2008, we studied the N-glycosylation site mapping of a1PI protein.

  Funding Agency

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Biotechnology Resource Grants (P41)
Project #
5P41RR018502-07
Application #
7956015
Study Section
Special Emphasis Panel (ZRG1-CB-L (40))
Project Start
2009-06-01
Project End
2010-05-31
Budget Start
2009-06-01
Budget End
2010-05-31
Support Year
7
Fiscal Year
2009
Total Cost
$2,534
Indirect Cost

  Institution

Name
University of Georgia
Department
Type
Organized Research Units
DUNS #
004315578
City
Athens
State
GA
Country
United States
Zip Code
30602

  Publications

Gas-Pascual, Elisabet; Ichikawa, Hiroshi Travis; Sheikh, Mohammed Osman et al. (2018) CRISPR/Cas9 and glycomics tools for Toxoplasma glycobiology. J Biol Chem :
Sheikh, M Osman; Thieker, David; Chalmers, Gordon et al. (2017) O2 sensing-associated glycosylation exposes the F-box-combining site of the Dictyostelium Skp1 subunit in E3 ubiquitin ligases. J Biol Chem 292:18897-18915
Ma, Liang; Chen, Zehua; Huang, Da Wei et al. (2016) Genome analysis of three Pneumocystis species reveals adaptation mechanisms to life exclusively in mammalian hosts. Nat Commun 7:10740
Karumbaiah, Lohitash; Enam, Syed Faaiz; Brown, Ashley C et al. (2015) Chondroitin Sulfate Glycosaminoglycan Hydrogels Create Endogenous Niches for Neural Stem Cells. Bioconjug Chem 26:2336-49
Li, Juan; Murtaugh, Michael P (2015) Functional analysis of porcine reproductive and respiratory syndrome virus N-glycans in infection of permissive cells. Virology 477:82-8
DePaoli-Roach, Anna A; Contreras, Christopher J; Segvich, Dyann M et al. (2015) Glycogen phosphomonoester distribution in mouse models of the progressive myoclonic epilepsy, Lafora disease. J Biol Chem 290:841-50
Dwyer, Chrissa A; Katoh, Toshihiko; Tiemeyer, Michael et al. (2015) Neurons and glia modify receptor protein-tyrosine phosphatase ? (RPTP?)/phosphacan with cell-specific O-mannosyl glycans in the developing brain. J Biol Chem 290:10256-73
Li, Juan; Tao, Shujuan; Orlando, Ron et al. (2015) N-glycosylation profiling of porcine reproductive and respiratory syndrome virus envelope glycoprotein 5. Virology 478:86-98
Panin, Vladislav M; Wells, Lance (2014) Protein O-mannosylation in metazoan organisms. Curr Protoc Protein Sci 75:Unit 12.12.
Ingale, Jidnyasa; Tran, Karen; Kong, Leopold et al. (2014) Hyperglycosylated stable core immunogens designed to present the CD4 binding site are preferentially recognized by broadly neutralizing antibodies. J Virol 88:14002-16

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