ACD1 | Accelerated cell death 1
AS11 1783 | Clonality: Polyclonal | Host: Rabbit | Reactivity:Arabidopsis thaliana
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61 | 54 kDa
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Arabidopsis thaliana wild ecotype Columbia was grown for four weeks under continuous illumination and then transferred to complete darkness for five days. Several leaves were harvested from the plants before they were transferred to darkness (0 d) or after they were kept for five days (5 d). Protein was extracted with the SDS extraction solution containing 50 mM Tris (pH 6.8), 10% (w/v) glycerol, 2% (w/v) SDS and 6% (v/v) 2-mercaptoethanol. Protein extract equivalent to 1 mg leaf material was loaded and separated on 14% SDS-PAGE and blotted 1h to PVDF. Blots were blocked with PBS-T containing 1.5% skim milk for 1h at room temperature (RT) with agitation. Blot was incubated in the primary antibody at a dilution of 1: 10 000 for 1h at RT with agitation. The antibody solution was decanted and the blot was rinsed briefly twice, then washed once for 15 min and 3 times for 5 min in PBS-T at RT with agitation. Blot was incubated in secondary antibody (anti-rabbit IgG horse radish peroxidase conjugated, from GE Healthcare ) diluted to 1:20 000 in for 1h at RT with agitation. The blot was washed as above and developed for 1 min with ECLplus according to the manufacturers instructions. Exposure time was 5 min.
Courtesy of Kaori Takahashi at Hokkaido University, Japan
The protein level is moderately induced during dark-induced senescence.
This antibody works on total cell extracts and can be used as a senescence marker. Predicted size of Acd1 precursor protein is about 61 kD including the transit peptide, but it must be processed to a smaller size. Using fresh extracts is recommended to decrease possible cross-reaction with Rubisco.
Acd1 (accelerated cell death 1) EC=22.214.171.124 is an enzyme involved in chlorophyll breakdown, pheophorbide a oxygenase. This enzyme seems to induce cell death in Arabidopsis leaves in the dark. Synonymes:PaO, Lls1, lethal leaf-spot 1 homolog, pheide a oxygenase
Nagane et al. (2010). Involvement of AtNAP1 in thre reulation of chlorophyll degradation in Arabiopsis thaliana. Planta (4):939-949.
Hirashima et al. (2009). Light-independent cell death induced by accumulation of pheophorbide a in Arabidopsis thaliana. Plant Cell Physiol. (4):719-729.
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