A two-directional thin-layer chromatographic method for the rapid analysis of phospholipids from cultured cells is described. The procedure permits reliable separation of the common and minor phospholipid species using regular silica gel G chromatoplates. It is based primarily on the shortening of t
Analysis of 32P-labeled bacteriophage MS2 RNA by a mini-fingerprinting procedure
โ Scribed by G. Volckaert; W.Min Jou; W. Fiers
- Publisher
- Elsevier Science
- Year
- 1976
- Tongue
- English
- Weight
- 914 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0003-2697
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โฆ Synopsis
A modified procedure is described for the analysis of enzymatic digests of 32P-labeled RNA on thin layer plates. The first dimension consists of conventional electrophoresis at pH 3.5 on cellulose acetate and the second dimension is according to chain length by chromatography with an appropriate homomixture. Ribonuclease T,-digests are run on polyethyleneimine thin layer plates and pancreatic ribonuclease digests on diethylaminoethyl-plates.
The procedure combines high sensitivity (due to the small pin-size spots) with excellent resolution. Moreover, the composition of nearly all spots can be deduced from their position. As an illustration, the analyses of enzymatic digests of MS2 RNA (chain length 3569) are presented.
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