Vitamin B12 binding by rat serum protein fractions

Mulgaonkar, Anand G. ; Sreenivasan, A. (1959) Vitamin B12 binding by rat serum protein fractions Archives of Biochemistry and Biophysics, 80 (1). pp. 22-25. ISSN 0003-9861

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Vitamin B12 in normal rat serum is found to exist largely in the bound form and almost entirely associated with α2-globulin. With increasing in vitro additions of the vitamin to serum, up to 1.5 mμg./ml., the vitamin is chiefly recovered in the α2- and β-globulin fractions, the bound vitamin being confined to the α2-fraction. Any extra vitamin B12 added migrates in the free state with the γ-globulin fraction.

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ID Code:35610
Deposited On:21 Apr 2011 12:01
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