PSII (Photosystem II)
PSI/PSII ratio can be estimated once a quantitative immunoblot for PsaC (AS10 939) and for either PsbA (AS05 084) or PsbD (AS06 146), is performed in 3-4 replicates. Ratio calculation is done on a sample by sample basis. These ratios are based on the subunits present, whether they are in the assembled photosystem or not. Under some circumstances (eg. high light), there are biological reasons that the subunit numbers do not necessarily match the functional photosystems.
Literature
Brown et al. (2008). Flux capacities and acclimation costs in Trichodesmium from the Gulf of Mexico. Marine Biology 154 (3): 413-422.
Levitan et al. (2010). Regulation of nitrogen metabolism in the marine diazotroph Trichodesmium IMS101 under varying temperatures and atmospheric CO2 concentrations. Environmental Microbiology 12(7): 1899-1912.
Thamatrakoln et al. (2013). A ‘Death-Specific Protein’ in a marine diatom regulates photosynthetic responses to iron and light availability. Proceedings of the National Academy of Science 110(50): 20123-20128 Li G,
Li et al. (2014). The Nitrogen Costs of Photosynthesis in a Diatom under Current and Future pCO2. New Phytologist, 205:533-543.
Protocols and Technical Information • Support • Western Blot Video Tutorials

AS08 300 | Extraction buffer for quantitative isolation of total soluble/membrane protein from plant tissue and algal/bacterial cells, optimized for subsequent western blot detection in denatured conditions

AS06 167 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A. thaliana, H. vulgare, N. tabacum, P.abies, P. sativum, P. patens

AS06 157 | Clonality: Polyclonal | Host: Rabbit | Reactivity: plants including A. balsamea, A.thaliana, H.vulgare, P.strobus, S.oleracea, Synechococcus sp. PCC 7942, Z.mays

AS06 146 | Clonality: Polyclonal | Host: Rabbit | Reactivity: [global antibody] for A. thaliana, Anabaena 7120, D. brightwellii, H. vulgare, C.reinhardtii, C. zofingiensis, L. corniculatus, N. tabacum, O. sativa, P. sativum, P. vulgaris, P. tricornutum, T. pratense, S. alba, Synechococcus sp. PCC 7942, Synechocystis sp. PCC6803, T. guillardii, T. pseudonana, Triticale, U. prolifera, Z. mays
Benefits of using this antibody
50% discount on matching standard/positive control
AS09 146S PsbD | D2 protein of PSII positive control/quantitation standard
Use promotional code: Stand50

AS06 142-33 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A.thaliana, C. reinhardtii, C. vulgaris, C. sp. DT, E. crus-galli, F. arundinacea cv. Kord, H. pluvialis, H. spontaneum, H. vulgare, N. benthamiana, P. abies, P. banksiana, P. sativum, P. miliaceum, S. oleracea, S. tuberosum cultivar Taedong Valley, Synechococcus sp. PCC 7942 and PCC6803, T. salsuginea,
T.aestivum
Compartment marker of thylakoid lumen
Replaced by AS05 092

AS06 142-23 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A. thaliana, Ch. reinhardtii, P. banksiana. , S.oleracea, T. aestivum

AS06 142-16 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A. thaliana, H. vulgare, P. abies, T. aestivum, Z. mays

AS06 114 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Arabidopsis thaliana, Nicotiana tabacum

AS06 112 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A.thaliana, H. vulgare, N.tabacum, O. sativa, S. oleracea | cellular [compartment marker] of thylakoid membrane

AS06 111 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Cyanobacteria
50% discount on matching standard/positive control
AS10 111S CP43' | IsiA homolog of plant CP43 positive control/quantitation standard
Use promotional code: Stand50

AS05 092 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A. thaliana, H. vulgare, N. tabacum, P. sativum, Z. mays

AS05 084 | Clonality: Polyclonal | Host: Rabbit | Reactivity: [global antibody] for higher plants, algae, liverwort, cyanobacteria, diatoms | cellular [compartment marker] of thylakoid membrane
Benefits of using this antibody

AS05 060 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Arabidopsis thaliana, Nicotiana tabacum, Spinacia oleracea

AS05 059 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A. thaliana, N. tabacum, P. sativum, S. oleracea, T. aestivum

AS04 038 | Clonality: Polyclonal | Host: Rabbit | Reactivity: [global antibody] for higher plants, Physcomitrella patens, algae, cyanobacteria, diatoms
Benefits of using this antibody

AS03 032 | Clonality: Polyclonal | Host: Hen | Reactivity: A. thaliana, A. sativa, B. napus, H. vulgare, O. sativa, P. sylvestris, P. tremula, S. oleracea

AS01 016 | Clonality: Polyclonal | Host: Hen | Reactivity: [global antibody] for higher plants, algae, cyanobacteria and dinoflagellates
Benefits of using this antibody
50% discount on matching standard/positive control
AS01 016S PsbA | D1 protein of PSII positive control/quantitation standard
Use promotional code: Stand50