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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Nat Struct Mol Biol. 2009 Jul 20;16(8):883–889. doi: 10.1038/nsmb.1637

Table 2.

Dissociation equilibrium constants (Kd) for fluorescent UBA domains interacting with polyubiquitins.

UBA K63- Ub2 K48- Ub2 K63- Ub4 K48- Ub4
Ede1 120 86 54 31
hHR23A UBA1 ND ND 30 9.0
Ubc1 ND ND 170 37
Dsk2 ND ND 2.2 1.4
Ddi1 ND ND 92 50

Kd values (μM) were determined by fluorescence anisotropy. ND, not determined.

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