Table 1.
Light dependent regulation of transcription factors involved in plant biomass utilization
| Name | Protein ID | Regulatory function (related to plant biomass degradation) in | Cellulase induction specific | Regulation in QM6a in light | Regulated by BLR1 | Regulated by BLR2 | Regulated by ENV1 | ||
|---|---|---|---|---|---|---|---|---|---|
| In light | In darkness | In light and darkness | |||||||
| XYR1 | 122208 | (hemi-)cellulose utilization | x | x | x | -- | x | x | |
| CRE1 | 120117 | Carbon catabolite repression | n | ||||||
| ACE1 | 75418 | Cellulose utilization | - | ||||||
| ACE2 | 78445 | Cellulose utilization | x | -- | |||||
| ACE3 | 77513 | Cellulose utilization | x | x | x | --- | x | ||
| CLR1 | 27600 | (hemi-)cellulose utilization (in N. crassa) | x | - | x | ||||
| CLR2 | 26163 | (hemi-)cellulose utilization (in N. crassa) | -- | x | x | ||||
| XPP1 | 122879 | (hemi-)cellulose utilization | n | ||||||
| VIB1 | 54675 | Cellulose utilization | --- | x | |||||
| HAP2 | 124286 | CAZy regulation | n | ||||||
| HAP3 | 121080 | CAZy regulation | n | ||||||
| HAP5 | 124301 | CAZy regulation | n | ||||||
| AmyR | 55105 | Starch utilization | -- | x | |||||
| MalR | 21997 | Maltose utilization | n | ||||||
| BglR | 52368 | Sugar sensing | n | ||||||
| RhaR1 | 79871 | L-rhamnose utilization | n | ||||||
| RhaR2 | 121107 | L-rhamnose utilization | x | x | x | n | |||
| McmA | 42249 | Cellulase regulation | n | ||||||
| VEL1 | 122284 | Cellulase regulation | ++ | ||||||
| VEL2 | 40551 | Metabolism | n | ||||||
| AreA | 76817 | N-assi mi lation | n | ||||||
| AreB | 120127 | Nitrogen metabolite repression | n | ||||||
| NmrA | 74375 | Nitrogen metabolite repression | n | ||||||
| NIT4 | 76705 | Nitrate pathway | n | ||||||
| PAC1 | 120698 | pH response | n | ||||||
| PACX | 59740 | pH response | - | ||||||
For the regulatory impact of the GATA-type transcription factors BLR1 and BLR2 see text on photoreceptors
n, no regulation; +, upregulation in light; -, downregulation in light; +/-, minor regulation; ++/--, moderate regulation (around 5–10 fold); +++/---, strong regulation