(A) Digest assay comparison between MBP
and random substrates:
(1) casein, (2) MBP, (3) α-lactalbumin, and (4) lysozyme; each
set shows +/− Abs from ME/CFS_11 patient, (B) kinetics of ME/CFS_11
Abs showing correlation/percent relative activity (% RA) of MBP breakdown
with increasing Ab concentration, and (C) PAGE image of ME/CFS_11
Ab with (I) nonreducing and (II) reducing conditions after protein-A
purification to demonstrate Ab purity; first lane is a protein ladder.
Further densitometry analysis of the digest assay (A) comparing the
MBP bands +/– Ab showed the target full-length product (∼18,400
Da) for each to be 687 and 1305 (dpi), respectively. All substrates
(+/– Ab) were incubated at 37 °C for 24 h.