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ntcA | Nitrogen-responsive regulatory protein; Required for full expression of proteins subject to ammonium repression. Transcriptional activator of genes subject to nitrogen control. (223 aa) | ||||
patS | Heterocyst-inhibiting signaling peptide; Inhibits heterocyst differentiation. Seems to control heterocyst pattern formation through intercellular signaling mechanisms. In Anabaena filaments every 10th vegetative cell terminally differentiates into a heterocyst specialized for nitrogen fixation. Seems to inhibit the formation of adjacent heterocysts. Inhibits the DNA-binding of HetR. (17 aa) | ||||
all3953 | Probable RuBisCO transcriptional regulator; Trans-acting transcriptional regulator of RuBisCO genes (rbcL and rbcS) expression. (337 aa) | ||||
hetN | Ketoacyl reductase; May be involved in repressing heterocyst differentiation and may be essential for preventing all vegetative cells from differentiating. (287 aa) |