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Protein profiling of rat cerebella during development
Author(s) -
Taoka Masato,
Wakamiya Akiko,
Nakayama Hiroshi,
Isobe Toshiaki
Publication year - 2000
Publication title -
electrophoresis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.666
H-Index - 158
eISSN - 1522-2683
pISSN - 0173-0835
DOI - 10.1002/(sici)1522-2683(20000501)21:9<1872::aid-elps1872>3.0.co;2-#
Subject(s) - profiling (computer programming) , computational biology , chemistry , biology , computer science , operating system
Protein profiles of developing rat cerebella were analyzed by means of two‐dimensional gel electrophoresis (2‐DE) and mass spectrometry (MS). The analysis of adult rat cerebellum gave rise to a protein map comprising ˜3000 spots detectable by silver staining following high resolution 2‐DE with a pH range of 3‐10 and a mass range of 8‐100 kDa. To obtain landmarks for comparison of developmental profiles of cerebellar proteins, 100 spots were subjected to peptide mass fingerprinting using matrix‐assisted laser desorption/ionization time‐of‐flight mass spectrometry (MALDI‐TOF‐MS), and 67 spots were assigned on the map. Analysis of profiles of the developing cerebella revealed significant changes in the expression of proteins during development. In most cases the expression levels of proteins increased as the cerebellum matured, while the expression of 42 spots appeared specific or remarkably abundant in the immature cerebellum. Peptide mass fingerprinting of these spots allowed us to identify 29 proteins, which include, in addition to proteins of unknown function, many proteins known to have roles in the development of the central nervous system. These results suggest that the proteomic approach is valuable for mass identification of proteins involved in cerebellar morphogenesis.