Fig. 1.

¹⁴C-Glucose uptake in recombinant strains of S. elongatus sp. PCC 7942 expressing the gene Pro1404 from P. marinus SS120. The Pro1404 gene was inserted into asnS of the S. elongatus chromosome as described (Fig. S2), under the control of two constitutive promoters of moderate (C.K1) and high (C.K3) activity in cyanobacteria. A glucose-transporting species, Synechocystis sp. PCC 6803 was used as positive control, whereas the recombinant strain AsnS-1 of S. elongatus was used as negative control. P. marinus sp. SS120 was also used as reference. Data presented are the average of three independent biological replicates. Bars show SD for each sample. SD bars for P. marinus sp. SS120 are smaller than symbols.