Files in this Data Supplement:

• Supplemental file 1 - Supplemental text, mass spectral analysis of NflD-associated proteins; Tables S1 to S3, peak masses obtained for the MJ1210, MJ0861, and MJ1157 bands in Fig. S1; Fig. S1. SDS-PAGE of M. jannaschii proteins eluted from a polyclonal anti-NflD IgG--protein A agarose column; Fig. S2 and S3, plots of the error as a function of fragment size minus theoretically calculated digested protein fragment size vs. fragment size for the 28-kDa protein MJ1210 and the 50-kDa protein MJ0861
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