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. 2011 Jul 8;63(12):821–834. doi: 10.1007/s00251-011-0555-3

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© Springer-Verlag 2011

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Fig. 1 — SDS-PAGE analysis of peak fractions from size exclusion chromatography of porcine β₂m (11.4 kDa) after removal of histidine affinity tag (HAT) by FXa protease digestion. Samples were mixed 1:1 in non-reducing SDS sample buffer and loaded onto a 15% polyacrylamide gel