Orlando MS Lab
Complex Cabohydrate Research Center
University of Georgia



View our Instrumentation:
View our Group Members and their Work
Visit the AAMSDG:  Atlanta-Athens Mass Spectrometry Discussion Group
Visit the CCRC or UGA:
Useful websites for MS and biological analysis
Search the CCRC database for publications from our group.
 
 

Group Members
(Click name to read about their work)
 
ASMS 2002 Titles
(Click on Title to see the Presentations)
Jeremi Johnson
Graduate Student
  Identifying Allergenic Proteins from Penicillium chrysogenum
Kumar Kolli
 Research Scientist
 Identification of Carbohydrate Biosynthetic Genes in Arabidopsis thaliana by LC/MS/MS
Daniel King
Graduate Student
The Use of Amide Exchange-MS to Study Protein Carbohydrate Interactions
Min Xie
Graduate Student
Investigating the Post-translational Modifications of Recombinant Polygalacturonase III from Aspergillus niger with Mass Spectrometry
Haofei Wang
Graduate Student
 Factors that Affect Protein Identification Using MS/MS Peptide Mapping
Leslie Stanton
Laboratory Technician
Mass Spectrometric Examination of A Potentially Truncated Polygalacturonase Inhibiting Protein
Kyuseong Choi
visiting scholar
Zinc deficiency and protein expression in rat olfactory bulbs
Janette Cummings Daughtry
Graduate Student
The Search for New Polygalacturonase inhibiting proteins (PGIPs)
Cameron Grooms Craft
Graduate Student
 SPE-MALDI: The On-target Clean-up and Concentration of Dilute Samples
Tasneem Bahrainwala
Graduate Student
 Reducing the amount Sample Required for Amide Exchange-MS to study Plant Cell Wall Degradation with Wild-type Enzymes
James Atwood
Graduate Student
 

 
 

Jeremi Johnson: My research incorporates a multi-disciplinary foundation involving the combination of analytical chemistry and biochemistry.  I work on  characterizing post-translational modifications (glycosylation and phosphorylation) present on proteins, detection and characterization of anitbody specific proteins, and development of new methods for high throughput protein analysis (qualitative and quantitative).  Analytical techniques and bioanalytical methods utilized include mass spectrometry (MALDI, ESI, nanospray, LC-MS, LC-MSMS), RP-HPLC, hydrophilic interaction chromatography (HILIC), 1-D and 2-D gel electrophoresis, protein electro-blotting, enzyme-linked immuno-sorbent assays (ELISA), in-gel and solution phase protein digestions, and several others.
 



Min Xie My research interest focuses on two closely related aspects of portein analysis by mass spectrometry. One is the development of carbohydrate, glycopeptide, glycoprotein characterization assay. The structural complexity, thermal lability and nonvolatility of those biomolecules keep them a challenge for mass spectrometry analysis. My work combines site-spectified chemical/enzyme digestions, affinity separation via antibody-antigen recongization mechanism and chemical lableing methods to decrease sample's complexity, increase the purification so that improve the MS sensitivity. Another work is the characterization of protein post-translational modifications which includes glycosylation and phosphorylation. The techniques applied in my work include various Mass Spectrometry (MALDI, ESI, Nanospray and MS/MS); chromatography (RP-HPLC, affinity LC, ion-exchange, size-exclusion); LC-MS (either online or offline) and LC-MS/MS; 1-D PAGE-SDS and 2-D gel electrophoresis as well as ELISA, lectin-blotting techniques etc.



Haofei Wang:
I am interested in bioinformatics/biostatistics methods on proteomics study. My research has focused on protein identification using Mass Spectrometry technique (MALDI-TOF) combining with Database Searching utilities. The success of database mining appears to be dependent upon protein purity, peptide yield, genomic complexity of target organism and accuracy of peptide mass assignment. My work investigates the dynamic interaction of these variables and their effect on database mining.
For more about me, please visit   my webpage
 
 


Tasneem BahrainwalaI will be focusing my research time on the development of hydrogen/deuterium exchange - MS and MS/MS  procedure for the characterization of  protein-carbohydrate and protein-protein binding interactions.
 
 
 
 


James Atwood:  My research involves the selective separation of proteins based on their isoelectric point utilizing cation exchange chromatography.  In addition future work will involve 2D chromatography utilizing cation exchange and reverse phase chromatographies.  This combination will be utilized to help fractionate extremely complex protein mixtures such that LC-MS can be utilized more effectively for the characterization low number proteins or  protein mixtures.


Useful Websites
Protein Prospector
Prowl
Matix Science
OCA pdb query
NIH pdb query
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CCRC, UGA,
220 Riverbend Rd,
Athens, GA 30602
phone:  706-542-4401
fax: 706-542-4412