Claim · model-written summary
Some TATA mutations inactivated minimal promoter expression in light but not darkness.
- Taxon
- tobacco (Nicotiana tabacum var Petit Havana)
Nicotiana tabacumt0 - Treatment
- T(7) or A(8)-->C or Ge0
- Outcome
- expression of the minimal promotere0
- Direction
- completely inactivatede0
- Qualifier
- in light but not in darke0
- Comparator
- darke0
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleSettingValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some mutations, like T(7) or A(8)-->C or G, completely inactivated the expression of the minimal promoter in light but not in dark.”
t0“tobacco (Nicotiana tabacum var Petit Havana) leaves”
Title
Kanti Kiran; Suraiya A. Ansari; Rakesh Srivastava; et al. PLANT PHYSIOLOGY 2006. doi:10.1104/pp.106.084319
Other claims from this paper (8)
- Intervention effect Nucleotides in both TATA segments and flanking sequences influenced promoter function in tobacco leaves.
- Intervention effect TATA mutations had variable and sometimes contrasting effects on reporter expression in light versus dark.
- Observation The sequence requirement was less stringent for dark than light expression.
- Intervention effect TATA mutations selectively affected light versus dark expression in chromatin-integrated promoters.
- Intervention effect TATA mutations affected light modulation even with an upstream activator element.
- Association An A at position eight was involved in the promoter red-light response.
- Association Selective expression was associated with high transcript initiation from a site inactive in darkness.
- Mechanism TATA-box sequence variation governed formation of alternative transcriptional complexes.