| Autor: |
Mayes, Steve R., Chiesa, Marta Dalla, Zhang, Zhihong, Barber, James |
| Zdroj: |
FEBS Letters; July 1993, Vol. 325 Issue: 3 p255-261, 7p |
| Abstrakt: |
We have identified the existence of two genes, trnQand aroA, located upstream of the psbOgene in Synechocystissp. PCC 6803. The trnQgene encodes a glutamine‐specific transfer RNA (tRNAGln) and the sequence given is the first reported for any cyanobacterium. The gene seems to exist as a single copy since its deletion results in nonviable mutation. The aroAgene encodes for 5‐enolpyruvylshikimate 3‐phosphate synthase and its discovery in the genome of Synechocystis6803 is the first genetic evidence for the existence of the shikimate biosynthetic pathway in cyanobacteria. Interestingly, the partial sequence shares close homologies with the sequences of aroAfrom Gram‐positive bacteria. |
| Databáze: |
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