Use of multidimensional separation protocols for the purification of trace components in complex biological samples for proteomics analysis.
The routine detection of low abundance components in complex samples for detailed proteomics analysis continues to be a challenge. Whilst the potential of multidimensional chromatographic fractionation for this purpose has been proposed for some years, and was used effectively for the purification to homogeneity of trace components in bulk biological samples for N-terminal sequence analysis, its practical application in the proteomics arena is still limited. This article reviews some of the recent data using these approaches, including the use of microaffinity purification as part of multidimensional protocols for downstream proteomics analysis.
Nice
E C
EC
Protein Biosensing and Epithelial Laboratories, Ludwig Institute for Cancer Research, Melbourne Tumour Biology Branch, P.O. Royal Melbourne Hospital, Parkville, Vic. 3050, Australia. Ed.nice@ludwig.edu.au
Rothacker
J
J
Weinstock
J
J
Lim
L
L
Catimel
B
B
D002846:Chromatography, Affinity / Q000379:methods; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D002852:Chromatography, Ion Exchange / Q000379:methods; D002853:Chromatography, Liquid / Q000379:methods; D015180:Electrophoresis, Gel, Two-Dimensional / Q000379:methods; D007525:Isoelectric Focusing / Q000379:methods; D040901:Proteomics / Q000295:instrumentation / Q000379:methods