TABLE 2.

Newly identified short genes in the S. acidocaldarius genome^a

Amino acid size range	No. of genes:
	Newly identified	Known
30-39	5	0
40-49	7	3
50-59	21	20
60-69	24	30
70-79	29	37
80-89	20	42
90-99	17	52
100-109	5	75
110-119	5	52
Total	133	311

^aThe short genes were identified by sequence comparison with the other Sulfolobus genomes. Some of the 133 newly identified genes exist in multiple copies, so the total number of different genes is 95 (see text). The numbers of known genes in the S. acidocaldarius genome, in the same size ranges, are included for comparison.