| Literature DB >> 7957903 |
N Maeda1, H Hamanaka, T Shintani, T Nishiwaki, M Noda.
Abstract
The possibility that some of the brain proteoglycans are receptor-like protein tyrosine phosphatases (PTPases) was investigated. Membrane-bound proteoglycan fractions were prepared from the postnuclear membrane fraction of 8-day-old rat brain by DEAE ion-exchange chromatography and CsCl density gradient centrifugation. The isolated proteoglycan fractions showed high PTPase specific activities together with the typical PTPase characteristics. Renaturation experiments indicated that chondroitin sulfate proteoglycans with 380- and 170-kDa core proteins carried the PTPase activity. The proteoglycan with 380-kDa core protein was identified as RPTP beta/zeta bearing HNK-1 carbohydrate.Entities:
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Year: 1994 PMID： 7957903 DOI： 10.1016/0014-5793(94)01093-5
Source DB: PubMed Journal: FEBS Lett ISSN： 0014-5793 Impact factor: 4.124