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. 2009 Mar 11;37(9):2796–2809. doi: 10.1093/nar/gkp128

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© 2009 The Author(s)

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/2.0/uk/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 6. — Interactions of wild-type and mutant clamps with Pol IIIα. (A) Representative SPR results analyzing interaction of Pol IIIα (500 nM) with various β clamp proteins (∼100 RU). Clamps examined include the his₆-tagged β⁺ homodimer (β⁺), the his₆-tagged β^C homodimer (β^C) and the his₆-tagged β⁺/myc-tagged β^C heterodimer (β⁺/β^C). (B) Summary table of kinetic constants for various clamp–Pol IIIα interactions derived from SPR experiments in which ∼100 RU of clamp was captured on the chip surface, and 10, 50, 100, 250, 500 and 1000 nM Pol IIIα was injected.