Table 3

Gene products encoded by the E. coli K-12 chromosome

Gene product type
Characterized
Putative assignment
Total (%)

Enzyme
1,042
578
1,620 (34.2)
Transport
382
364
746 (15.8)
Regulator
238
167
405 (8.5)
Membrane
53
158
211 (4.4)
Factor
117
33
150 (3.2)
Structure
92
35
127 (2.7)
Carrier
35
25
60 (1.3)
Extrachromosomal*
288

288 (6.1)
Phenotype


98 (2.1)
RNA
116

116 (2.4)
Leader
12

12 (0.3)
ORF


899 (19.0)
Total
2,375
1,360
4,732 (100.0)

Proteins are represented as modules. *Extrachromosomal origin.

Serres et al. Genome Biology 2001 2:research0035.1   doi:10.1186/gb-2001-2-9-research0035