RGD Reference Report - Complete purification of choline kinase from rat kidney and preparation of rabbit antibody against rat kidney choline kinase. - Rat Genome Database

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Complete purification of choline kinase from rat kidney and preparation of rabbit antibody against rat kidney choline kinase.

Authors: Ishidate, K  Nakagomi, K  Nakazawa, Y 
Citation: Ishidate K, etal., J Biol Chem. 1984 Dec 10;259(23):14706-10.
RGD ID: 6483448
Pubmed: PMID:6094572   (View Abstract at PubMed)

Choline kinase was purified from rat kidney to apparent homogeneity with respect to both native and sodium dodecyl sulfate-polyacrylamide gel electrophoresis. The purified enzyme showed a minimum molecular weight of 42,000 on sodium dodecyl sulfate-polyacrylamide gel electrophoresis. On the other hand, the molecular size of 75,000-80,000 was estimated through Sephadex G-150 gel filtration, indicating that the enzyme in rat kidney exists most likely in a dimeric form. Specific antibody was raised in rabbit against the highly purified rat kidney choline kinase protein, then immunochemical cross-reactivity was investigated between rabbit antiserum and choline kinase preparations from various rat tissues. The antiserum inhibited choline kinase activity almost completely in the crude preparation not only from kidney but also from lung, intestine, and normal untreated liver cytosol, but it could inhibit only partially the activity from either 3-methylcholanthrene- or carbon tetrachloride-induced rat liver cytosol. The overall results demonstrated that, although choline kinase protein appears to exist in multiple forms in rat tissues, most of them are immunochemically identical, and that either 3-methylcholanthrene- or carbon tetrachloride-inducible form(s) of choline kinase in rat liver could be quite different from a form or forms existing in normal untreated rat liver cytosol.

Objects referenced in this article
Gene Chkb choline kinase beta Rattus norvegicus

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