Single-cell protein analysis of a single mouse embryo by two-dimensional capillary electrophoresis.
The characterization of protein expression from a single-cell mouse embryo using two-dimensional capillary electrophoresis (2D-CE) is described. These zygotes were obtained from Hsf1 gene knockout mice. Single zygotes were lysed off-column and proteins were fluorescently labeled using the fluorogenic dye 3-(2-furoyl)quinoline-2-carboxaldehyde (FQ). After injection, analytes were separated first according to molecular weight using capillary sieving electrophoresis (CSE) and then by micellar electrokinetic capillary chromatography (MEKC) to obtain protein expression fingerprints. Analytes were detected in a sheath flow cuvette using laser-induced fluorescence. In a 1-h 2D-CE separation, over 100 components were resolved with a spot capacity of 380.
Harwood
Melissa M
MM
Department of Chemistry, University of Washington, Seattle, 98195, USA.
Christians
Elisabeth S
ES
Fazal
Md Abul
MA
Dovichi
Norman J
NJ
D000818:Animals; D019075:Electrophoresis, Capillary / Q000379:methods*; D015180:Electrophoresis, Gel, Two-Dimensional / Q000379:methods*; D004622:Embryo, Mammalian / Q000737:chemistry* / Q000166:cytology / Q000378:metabolism; D051379:Mice; D018345:Mice, Knockout; D011506:Proteins / Q000032:analysis*; D015203:Reproducibility of Results; D015053:Zygote / Q000737:chemistry / Q000378:metabolism
D011506:Proteins