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. Author manuscript; available in PMC: 2015 Jul 1.
Published in final edited form as: J Sep Sci. 2014 May 23;37(14):1896–1902. doi: 10.1002/jssc.201400227

Figure 4.

Figure 4

Anionic PAGE of proteins in parotid saliva from eight healthy subjects (50 μL per lane). One of the subjects in this pool (subject 5, Boston II) carried the PRP1/PRP3 RB variants. The position of the common aPRP isoforms were determined by reference to purified protein standards (not shown). The lower electrophoretic mobilities of the PRP1/PRP3 RB variants compared to PRP1/PRP3 is consistent with the substitution of the negatively charged Ser(Phos) residue at position 22 with a neutral a.a.