. Author manuscript; available in PMC: 2010 Aug 1.

Published in final edited form as: Mol Genet Metab. 2009 Apr 16;97(4):260–266. doi: 10.1016/j.ymgme.2009.04.005

Table 1.

Uptake and processing of [⁵⁷Co]-CNCbl by BAEC.

Time (b)	[⁵⁷Co]-Cbl uptake¹ (fmol/mg protein)		[⁵⁷Co]-Cofactor biosynthesis² (fmol/mg protein)

	Conditioned medium	Intracellular	AdoCbl	MeCbl
6	10.5	0.36	0.006 ± 0.002	0.003 ± 0.001
12	8.8	0.44	0.035 ± 0.005	0.007 ± 0.002
24	8.4	0.54	0.044 ± 0.014	0.008 ± 0.001
48	8.3	0.59	0.090 ± 0.021	0.012 ± 0.003
72	8.5	0.60	0.113 ± 0.016	0.008 ± 0.002

Uptake results represent three pooled samples per time point.

Cofactor biosynthesis is expressed as mean ± standard deviation (n=3)