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Table 2 Dissociation constants (Kd) for transferrin receptor-mediated iron-55 uptake and unspecific uptake (Bmax) by K562 cells grown in vitro with recombinant and plasma-derived transferrins

From: High-level production of animal-free recombinant transferrin from Saccharomyces cerevisiae

Transferrin source

Kd (nM)

Bmax (fmol/106 cells)

Human plasma Tf (Calbiochem)

105 ± 16

2668 ± 91

DYB7 [pDB3237]

104 ± 23

2543 ± 122

  1. Errors indicate SEM (n = 3).
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Microbial Cell Factories

ISSN: 1475-2859

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