Clifton Fagerquist
(Keith)
Produce Safety and Microbiology Research
Research Chemist
Phone: (510) 559-5691
Fax: (510) 559-6162
Room 3100 USDA, ARS, PWA, WRRC-PSM
800 BUCHANAN STREET ALBANY, CA, 94710
Boggess, M.V., Lippolis, J.D., Hurkman Ii, W.J., Fagerquist, C.K., Briggs, S.P., Gomes, A.V., Righetti, P., Bala, K. 2013. The need for agriculture phenotyping: “Moving from genotype to phenotype”. Journal of Proteomics. doi: http://dx.doi.org/10.1016/j.jptot.2013.3.021.
Fagerquist, C.K. 2013. Top-down proteomic identification of bacterial protein biomarkers and toxins using MALDI-TOF-TOF-MS/MS and post-source decay. Reviews in Analytical Chemistry. 32(2):127-133. doi:10.1515/revac-2012-0035.
Fagerquist, C.K., Sultan, O., Carter, M.Q. 2012. Possible evidence of amide bond formation between sinapinic acid and lysine-containing bacterial proteins by matrix-assisted laser desorption/ionization (MALDI) at 355 nm. Journal of American Society for Mass Spectrometry. 23(12):2102-2114.
Fagerquist, C.K., Sultan, O. 2012. A new calibrant for MALDI-TOF-TOF-PSD-MS/MS of non-digested proteins for top-down proteomic analysis. Rapid Communications in Mass Spectrometry. 1241:1248.
Fagerquist, C.K., Sultan, O. 2012. Top-down proteomic identification of protein biomarkers of food-borne pathogens using MALDI-TOF-TOF-MS/MS. Lee, M.S. Editor. Mass Spectrometry Handbook. New Jersey:John Wiley & Sons. p. 559-573.
Fagerquist, C.K., Sultan, O. 2011. Induction and identification of disulfide-intact and disulfide-reduced beta-subunit of Shiga toxin 2 from Escherichia coli O157:H7 using MALDI-TOF-TOF-MS/MS and top-down proteomics. Analyst.136:1739-1746. DOI: 10.1039/C0AN00909A.
Fagerquist, C.K. 2011. Rapid Identification of Food-borne Pathogens by Top-Down Proteomics Using MALDI-TOF/TOF Mass Spectrometry. In: Fenselau, C; Demirev, P.,editors. Rapid Characterization of Microorganisms by Mass Spectrometry. Washington D.C., American Chemistry Society Publications. American Chemical Society Symposium Series. 1065:99-120
Fagerquist, C.K., Sultan, O. 2010. Top-down proteomic identification of furin-cleaved alpha-subunit of Shiga toxin 2 from Escherichia coli O157:H7 using MALDI-TOF-TOF-MS/MS. Journal of Biomedicine and Biotechnology. DOI:10.1155/2010/123460.
Fagerquist, C.K., Garbus, B.R., Miller, W.G., Williams, K.E., Yee, E., Bates, A.H., Boyle, S., Harden, L.A., Cooley, M.B., Mandrell, R.E. 2010. Rapid Identification of Protein Biomarkers of E. coli O157:H7 by MALDI-TOF-TOF Mass Spectrometry and Top-Down Proteomics. Analytical Chemistry. 82:2717-2725.
Fagerquist, C.K., Garbus, B., Williams, K., Bates, A.H., Harden, L.A. 2010. Covalent attachment and dissociative loss of sinapinic acid to/from cysteine-containing proteins from bacterial cell lysates analyzed by MALDI-TOF-TOF mass spectrometry. Journal of American Society for Mass Spectrometry. 21,819-832.
Fagerquist, C.K., Garbus, B.R., Williams, K.E., Bates, A.H., Boyle, S., Harden, L.A., Miller, W.G., Mandrell, R.E. 2009. Rapid Identification of E. coli O157:H7 by "Top-Down" Proteomics Using MALDI-TOF/TOF Mass Spectrometry.IN: Proceedings of the 57th American Society of Mass Spectrometry Conference, May 31-June 4, 2009, Philadelphia, PA. DVD:A091307.8125ver.1.pdf
Fagerquist, C.K., Garbus, B.R., Williams, K., Bates, A.H., Boyle, S., Harden, L.A. 2009. Web-based software for rapid "top-down" proteomic identification of protein biomarkers with implications for bacterial identification. Applied and Environmental Microbiology. 75(13):4341-4353.
Fagerquist, C.K. 2011. Proteomics of foodborne bacterial pathogens. In: Wiedman, M.; Zhang, W., editors of: Genomics of foodborne bacterial pathogens. New York, NY: Springer. p. 343-402.
Hannis, J., Manalili, S., Hall, T., Ranken, R., White, N., Sampath, R., Blyn, L., Ecker, D., Mandrell, R.E., Fagerquist, C.K., Bates, A.H., Miller, W.G., Hofstadler, S. 2008. High Resolution Genotyping of Campylobacter Using PCR and High-Throughput Mass Spectrometry. Journal of Clinical Microbiology.46(4) 1220-1225.
Fagerquist, C.K., Yee, E., Miller, W.G. 2007. Composite sequence proteomic analysis of protein biomarkers of Campylobacter coli, C. lari and C. consisus for bacterial identification. The Analyst. 132(10):1010-1023.
Fagerquist, C.K. 2007. Amino Acid Sequence Determination of Protein Biomarkers of Campylobacter upsaliensis and C. helveticus by "Composite" Sequence Proteomic Analysis. Journal of Proteome Research. 6(7):2539-2549.
Fagerquist, C.K., Williams, K.E., Bates, A. H. Identification of Foodborne Bacteria by High Energy Collision-Induced Dissociation of their Protein Biomarkers by MALDI Tandem-Time-of-Flight Mass Spectrometry. In: Proceedings of the 55th American Society of Mass Spectrometry Conference, June 3-7, 2007, Indianapolis, IN. [DVD MPT-327 from ASMS.]
Lin, J.T., Arcinas, A.J., Fagerquist, C.K. 2006. Identification of the molecular species of triacylglycerols by hplc and an acylacyl-diacylglycerol (tetraacylglycerol) by using resolution electrospray ionization tadem mass spectrometry in castor oil. International Symposium on Biocatalysis and Biotechnology: Functional Food and Industrial Products.
Fagerquist, C.K., Bates, A.H., Heath, S., King, B.C., Garbus, B.R., Harden, L.A., Miller, W.G. Sub-speciating campylobacter jejuni by proteomic analysis of its protein biomarkers and their post-translational modifications. Journal of Proteome Research. 5:10:2527-2538
Lin, J.T., Arcinas, A.J., Harden, L.A., Fagerquist, C.K. 2006. Identification of (12-ricinoleoyl-ricinoleoyl)-diricinoleoyl-gylcerol, an acylglycerol containing four acyl chains, in castor by lc-esi-ms. Journal of Agriculture and Food Chemistry. 54(10):3498-3504.
Lin, J.T., Arcinas, A.J., Harden, L.A., Fagerquist, C.K. 2006. Identification of (12-ricinoleoyl-ricinoleoyl)-diricinoleoyl-glycerol in castor oil by esi-ms/ms and its biosynthesis. American Oil Chemists' Society Meeting.
Qi, P.X., Wickham, E.D., Piotrowski, E.G., Fagerquist, C.K., Farrell Jr, H.M. 2005. Implication of c-terminal deletion on the structure and stability of bovine b-casein. Protein Journal. 24(7-8):431-444.
Fagerquist, C.K., Miller, W.G., Harden, L.A., Bates, A.H., Vensel, W.H., Wang, G., Mandrell, R.E. 2005. Genomic and proteomic identification of a dna-binding protein used in the "fingerprinting" of campylobacter species and strains by maldi-tof-ms protein biomarker analysis. Analytical Chemistry. web release 6/25/05, 77:4897-4907
Mandrell, R.E., Harden, L.A., Bates, A.H., Miller, W.G., Haddon, W.F., Fagerquist, C.K. 2005. Speciation of campylobacter coli, c. jejuni, c. helveticus, c. lari, c. sputorum, and c. upsaliensis by matrix-assisted laser desorption ionization-time of flight (maldi-tof) mass spectrometry. Applied and Environmental Microbiology. 71:10 p. 6292-6307
Fagerquist, C.K., Lightfield, A.R., Lehotay, S.J. 2005. Confirmatory and quantitative analysis of b-lactam antibiotics in bovine kidney tissue by dispersive solid-phase extraction and liquid chromatography-tandem mass spectrometry. Analytical Chemistry 5(77).1473-1482.
Fagerquist, C.K., Harden, L.A., Miller, W.G., Fouts, D., Nelson, K., Mandrell, R.E. 2004. Fingerprinting of campylobacter species and strains by mass spectrometric identification of protein biomarkers. In: Proceedings of the 52nd American Society for Mass Spectrometry Conference and Allied Topics. May 23-27, 2004 Nashville, TN. CDROM
FAGERQUIST, C.K. COLLISION-ACTIVATED CLEAVAGE OF A PEPTIDE/ANTIBIOTIC DISULFIDE LINKAGE: EVIDENCE OF INTRAMOLECULAR DISULFIDE BOND REARRANGEMENT UPON COLLISIONAL ACTIVATION. RAPID COMMUNICATIONS IN MASS SPECTROMETRY.
FAGERQUIST, C.K. COLLISON-ACTIVATED CLEAVAGE OF A PEPTIDE/ANTIOBIOTIC LINKAGE: EVIDENCE FOR GAS-PHASE INTRAMOLECULAR DISULFIDE EXCHANGE. AMERICAN SOCIETY FOR MASS SPECTROMETRY. 2002.
FAGERQUIST, C.K., LIGHTFIELD, A.R. ANALYSIS FOR B-LACTAM ANTIBIOTICS IN KIDNEY TISSUE BY LIQUID CHROMATOGRAPHY WITH ELECTROSPRAY IONIZATION AND SELECTIVE REACTION MONITORING/TANDEM ION TRAP MASS SPECTROMETRY. RAPID COMMUNICATIONS IN MASS SPECTROMETRY. 2003.
FAGERQUIST, C.K., HUDGINS, R.R., EMMETT, M.R., HAKANSSON, K., MARSHALL, A.G. A BIOACTIVE ANTIOBIOTIC LINKED TO PEPTIDES IS RELEASED BY ELECTRON CAPTURE DISSOCIATION FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETRY. JOURNAL OF AMERICAN SOCIETY FOR MASS SPECTROMETRY. 2003.
FAGERQUIST, C.K., HUDGINS, R.R., EMMETT, M.R., HAKANSSON, K., MARSHALL, A.G. SELECTIVE CLEAVAGE OF A SMALL ANTIBIOTIC DRUG MOLECULE FROM A PEPTIDE AND PROTEIN IN THE GAS PHASE USING ELECTRON CAPTURE DISSOCIATION AND FOURIER TRANSFORM ION CYCLOTRON RESONANCE MASS SPECTROMETRY. MEETING ABSTRACT. 2002.
LEHOTAY, S.J., SCHNEIDER, M.J., FAGERQUIST, C.K., LIGHTFIELD, A.R. APPROACHES AND RECOMMENDATIONS TO VALIDATE MS CONFIRMATION CRITERIA FOR VETERINARY DRUG RESIDUES IN FOOD. 116TH AOAC INTERNATIONAL ANNUAL MEETING. ABSTRACT. 2002. P. 80.