Table 3 Presence and copy number of iron-regulated genes in the genomes of ecologically distinct diatoms
From: Genome and low-iron response of an oceanic diatom adapted to chronic iron limitation
Gene | Product | Destination | Mutual substitution at low-iron | Putative role in iron uptake | To | Tp | Pt | Fc |
|---|---|---|---|---|---|---|---|---|
PETF | Ferredoxin | CP | Ferredoxin → flavodoxin (short) |  | 1 | 1 | 1 | 1 |
FLDA(s) | Flavodoxin (short) | CP | Ferredoxin → flavodoxin (short) |  | 2 | 0 | 1 | 1 |
FLDA(l) | Flavodoxin (long) | SP (ER?) | None (distinct functional context) | Â | 1 | 1 | 1 | 1 |
CYTC6 (type A) | Cytochrome c6 | CP | Cytochrome c6 (type A) → plastocyanin |  | 2 | 1 | 1 | 1 |
CYTC6 (type B) | Cytochrome c (?) | SP (ER?) | None (distinct functional context) | Â | 1 | 1 | 1 | 0 |
PETE/PCY | Plastocyanin | CP | Cytochrome c6 (type A) → plastocyanin |  | 1 | 0 | 0 | 1 |
Class II FBA (type A) | Class II fructose-bisphosphate aldolase | CP pyrenoid (Pt FBAC1) | Class II FBA (type A) → class I FBA (type A) |  | 1 | 1 | 1 | 1 |
Class II FBA (type B) | Class II fructose-bisphosphate aldolase | CP stroma (Pt FBAC2) | Class II FBA (type B) → class I FBA (type B) |  | 1 | 1 | 1 | 1 |
Class II FBA (type C) | Class II fructose-bisphosphate aldolase | Cytosolic (Pt FBA3) | Class II FBA (type C) → class I FBA (type C) |  | 1 | 1 | 1 | 1 |
Class I FBA (type A) | Class I fructose-bisphosphate aldolase | CP pyrenoid (Pt FBAC5) | Class II FBA (type A) → class I FBA (type A) |  | 1 | 0 | 1 | 1 |
Class I FBA (type B) | Class I fructose-bisphosphate aldolase | CP stroma | Class II FBA (type B) → class I FBA (type B) |  | 1 | 0 | 0 | 1 |
Class I FBA (type C) | Class I fructose-bisphosphate aldolase | Cytosolic (Pt FBA4) | Class II FBA (type C) → class I FBA (type C) |  | 1 | 1 | 1 | 1 |
ISIP1 | Iron starvation induced protein 1 | Cell surface | Â | Receptor (?) | 2 | 0 | 1 | 3 |
ISIP3 | Iron starvation induced protein 3 | Cell surface | Â | Co-receptor (?) | 1 | 1 | 1 | 2 |