From: Structural and functional characteristics of xenavidin, the first frog avidin from Xenopus tropicalis
Protein
kass(s-1) (× 104)
kdiss(M-1s-1) (× 10-3)
Kd(M) (× 10-8)
Xenavidin
2.2
21.6
99.8
Streptavidin
20.0
17.0
8.5
Avidin
9.4
9.6
10.2