Plant/Algal cell antibodies / Photosynthesis / Electron transfer

product information

Cytochrome b559 (Cyt b559) is encoded by the chloroplast genes psbE and psbF and is comprised of two low molecular mass polypeptides, a and h subunits, with molecular masses of 9 and 4 kDa, respectively. The Cyt b559 is closely associated with PSII in all oxygenic photosynthetic organisms. The a and h subunits of the Cyt b559 are components of the minimal PSII reaction center complex that is still capable of primary charge separation In summary, both PsbE and PsbF are essential components for PSII assembly, and they are probably involved in electron transport mechanisms that help to protect PSII from photodamage.Altrnative protein name: PSII reaction center subunit V

KLH-conjugated synthetic peptide chosen from PsbE protein of Arabidopsis thaliana P56779

store lyophilized/reconstituted at -20°C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please, remember to spin tubes briefly prior to opening them to avoid any losses that might occur from lyophilized material adhering to the cap or sides of the tubes.

western blot (WB)

collection of antibodies to PSII proteins

cellular [compartment marker] of thylakoid membrane

application information

1 : 5000 with standard ECL (WB)

9.25 kDa

Arabidopsis thaliana, Hordeum vulgare

dicots including Glycine max, Nicotiana tabacum, Solanum tuberosum, deciduous flowering plant Populus alba

Chlamydomonas reinhardtii, Synechococcus sp. PCC 7942

to be added when available

Garcia-Cerdan et al. (2008). Antisense inhibition of the PsbX protein affects PSII integrity in the higher plant Arabidopsis thaliana. Plant Cell Physiol 50: 191-202

application example

2 µg of total protein from (1) Arabidopsis thaliana leaf, (2) Horderum vulgare leaf ), (3) Chlamydomonas reinhardtii total cell , (4) Synechococcus sp. 7942 total cell were all extracted with PEB (AS08 300) and separated on  4-12% NuPage (Invitrogen) LDS-PAGE and blotted 1h to PVDF. Blots were blocked immediately following transfer in 2% ECL Advance blocking reagent (GE Healthcare) in 20 mM Tris, 137 mM sodium chloride pH 7.6 with 0.1% (v/v) Tween-20 (TBS-T) for 1h at room temperature with agitation. Blots were incubated with the primary antibody at a dilution of 1: 10 000 for 1h at room temperature 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 TBS-T at room temperature with agitation. Blots were incubated in secondary antibody (anti-rabbit IgG horse radish peroxidase conjugated, from Abcam) diluted to 1:50 000 in 2% ECL Advance blocking solution for 1h at room temperature with agitation. The blots were washed as above and developed for 5 min with ECL Advance detection reagent according to the manufacturers instructions. Images of the blots were obtained using a CCD imager (FluorSMax, Bio-Rad) and Quantity One software (Bio-Rad).  Exposure time was 1 second.