Table 1 Affinities to FcRn and MSA.

From: In vivo depletion of serum IgG by an affibody molecule binding the neonatal Fc receptor

Construct

Target

KD (nM)

KD (nM)

pH 6.0

pH 7.4

ZFcRn

hFcRn

8.7

365

MSA

N.B.a

N.B.

ZFcRn-ABD

hFcRn

3.3

36

MSA

0.3

0.5

  1. aN.B. = No detectable binding.