Interestingly, the fact that fibrinopeptide A, after cleavage from the fibrinogen precursor, contains a C-terminal arginine residue makes it an excellent substrate for PAD enzymes, which are able to efficiently convert such residues to citrulline (data not shown).
Interestingly, a third significant cleavage site was observed for Mut1 (band c), corresponding to a cleavage downstream from a 5'-TA sequence.
7 Although mesothelin is bound to the cell membrane, a circulating form termed 'soluble mesothelin' has been reported to be related to abnormal splicing events leading to synthesis of a secreted protein and to an enzymatic cleavage from membrane-bound mesothelin.
Eventually, e-books point the way towards a cleavage of content from platform, threatening publishing with the wholesale change that has hit the music industry.
The western blot analysis also demonstrates that the toxicity was not due to a particular metabolism of the GFP that would result from a cleavage since the percent of free GFP resulting from proteolysis was roughly the same in m8 and wt extracts.
Inspection of ITAM distribution in CD3ζ suggests that the 27 kDa fragment could derive from a cleavage between ITAMs B and C, and the 22 kDa fragment from cleavage within ITAM B (Suppl. Fig. S2).
It suggests that BPA, or transformation products resulting from a cleavage of BPA, may act as mediators.
Alternatively, DNA may occasionally slide through the bound transposase whereupon the enzyme makes a cleavage at a distance from the binding site (Fig 4).
To differentiate between these two possibilities, we synthesized RNA substrates derived from a cleavage site with a known tertiary structure[15], [18].
CusA and AcrB sequence alignment indicated that these fragments probably resulted from a cleavage in the beginning of the second large periplasmic domain of CusA (fig. 5) and thus corresponded to 7 TM helices.
