PMID- 25082526 OWN - NLM STAT- MEDLINE DCOM- 20141009 LR - 20211021 IS - 1873-3778 (Electronic) IS - 0021-9673 (Print) IS - 0021-9673 (Linking) VI - 1359 DP - 2014 Sep 12 TI - Capillary zone electrophoresis-electrospray ionization-tandem mass spectrometry for quantitative parallel reaction monitoring of peptide abundance and single-shot proteomic analysis of a human cell line. PG - 303-8 LID - S0021-9673(14)01093-0 [pii] LID - 10.1016/j.chroma.2014.07.024 [doi] AB - We coupled capillary zone electrophoresis (CZE) with an ultrasensitive electrokinetically pumped nanospray ionization source for tandem mass spectrometry (MS/MS) analysis of complex proteomes. We first used the system for the parallel reaction monitoring (PRM) analysis of angiotensin II spiked in 0.45mg/mL of bovine serum albumin (BSA) digest. A calibration curve was generated between the loading amount of angiotensin II and intensity of angiotensin II fragment ions. CZE-PRM generated a linear calibration curve across over 4.5 orders of magnitude dynamic range corresponding to angiotensin II loading amount from 2amole to 150fmole. The relative standard deviations (RSDs) of migration time were <4% and the RSDs of fragment ion intensity were approximately 20% or less except 150fmole angiotensin II loading amount data ( approximately 36% RSD). We further applied the system for the first bottom up proteomic analysis of a human cell line using CZE-MS/MS. We generated 283 protein identifications from a 1h long, single-shot CZE MS/MS analysis of the MCF7 breast cancer cell line digest, corresponding to approximately 80ng loading amount. The MCF7 digest was fractionated using a C18 solid phase extraction column; single-shot analysis of a single fraction resulted in 468 protein identifications, which is by far the largest number of protein identifications reported for a mammalian proteomic sample using CZE. CI - Copyright (c) 2014 Elsevier B.V. All rights reserved. FAU - Sun, Liangliang AU - Sun L AD - Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. FAU - Zhu, Guijie AU - Zhu G AD - Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. FAU - Mou, Si AU - Mou S AD - Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. FAU - Zhao, Yimeng AU - Zhao Y AD - Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. FAU - Champion, Matthew M AU - Champion MM AD - Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. FAU - Dovichi, Norman J AU - Dovichi NJ AD - Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA. Electronic address: ndovichi@nd.edu. LA - eng GR - R01 GM096767/GM/NIGMS NIH HHS/United States GR - R01GM096767/GM/NIGMS NIH HHS/United States PT - Evaluation Study PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20140717 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Peptides) RN - 0 (Proteins) RN - 27432CM55Q (Serum Albumin, Bovine) SB - IM MH - Animals MH - Cattle MH - Cell Line MH - Electrophoresis, Capillary/*methods MH - Humans MH - Peptides/*chemistry/isolation & purification MH - Proteins/*chemistry MH - Proteomics/*methods MH - Serum Albumin, Bovine/chemistry MH - Spectrometry, Mass, Electrospray Ionization/methods MH - Tandem Mass Spectrometry/*methods PMC - PMC4141985 MID - NIHMS618163 OTO - NOTNLM OT - CZE-ESI-MS/MS OT - CZE-PRM OT - Human cell lysate digest OT - Shotgun proteomics OT - Ultrasensitive electrokinetically pumped sheath flow nanospray interface EDAT- 2014/08/02 06:00 MHDA- 2014/10/10 06:00 PMCR- 2015/09/12 CRDT- 2014/08/02 06:00 PHST- 2014/04/09 00:00 [received] PHST- 2014/06/25 00:00 [revised] PHST- 2014/07/10 00:00 [accepted] PHST- 2014/08/02 06:00 [entrez] PHST- 2014/08/02 06:00 [pubmed] PHST- 2014/10/10 06:00 [medline] PHST- 2015/09/12 00:00 [pmc-release] AID - S0021-9673(14)01093-0 [pii] AID - 10.1016/j.chroma.2014.07.024 [doi] PST - ppublish SO - J Chromatogr A. 2014 Sep 12;1359:303-8. doi: 10.1016/j.chroma.2014.07.024. Epub 2014 Jul 17.