TABLE 2.

How much of a gene must be missing to register as missing^a

Gene	Total gene size (bp)	Missing bp	% Remaining	Array analysis indication
fimE	594	5	99	Present
fruK	936	87	91	Present
b2174	747	138	82	Present
b0350	813	630	23	Missing
ykfD	1,425	1,217	15	Missing
fimB	600	533	11	Missing

^aResults with MC4100 were used to estimate how much of an open reading frame must be lost to register as missing by examining the six open reading frames that were split in the four MC4100 deletions (two deletion junctions were between open reading frames). Because the MC4100 data are calculated as ratios, the percent loss of an open reading frame is important and not the actual number of missing base pairs.