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. 2007 Jan 31;35(4):1222–1229. doi: 10.1093/nar/gkl1091

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© 2007 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 1. — The MALDI-TOF mass spectrometric analysis of primer extension products on a 21-nt template using TTP (top, showing a mixture of template and TTP product) and B-TTP (bottom: showing a mixture of template and B-TTP product). The mass difference of 418.6 reflects the incorporation of the boronic acid-labeled thymidine moiety.