PsbD | D2 protein of PSII

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AS06 146  |  Clonality: Polyclonal  |  Host: Rabbit  |  Reactivity: [global antibody] for A. thaliana, Anabaena 7120, D. brightwellii, H. vulgare, C.reinhardtii, 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, U. prolifera


47 st
Item No:
AS06 146

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product information

D2 protein (PsbD) forms the reaction core of PSII (Photosystem II) as a heterodimer with the D1 protein (PsbA). PsbD is homologous to the D1 protein, with slightly higher molecular mass of about 39.5 kDa. Accumulation of D2 protein is an important step in the assemply of the PSII reaction centre complex.


KLH-comjugated synthetic peptide derived from the C-terminal of known PsbD sequences including Arabidopsis pumila A4QJS8, Hordeum vulgare P11849, Chlamydomonas reinhardtii P06007, Synechococcus sp. PCC 7002 P20898

Host Rabbit
Clonality Polyclonal
Purity Serum
Format Lyophilized
Quantity 50 µl
Reconstitution For reconstitution add 50 µl of sterile water.
Storage 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.
Tested applications Western blot (WB)
Related products

AS09 146S | PsbD | D2 protein of PSII protein standard for quantitation and as a positive control
AS06 146PRE | PsbD | D2 protein of PSII, pre-immune serum
AS05 084 | anti-PsbA (D1) protein of PSII, C-terminal
collection of antibodies to PSII proteins
recommended secondary antibody

Plant and algal protein extraction buffer

Secondary antibodies

Additional information

The peptide used to elicit this antibody has a perfect conservation across all full-length PsbD sequences from higher plants, lower plants, cyanobacteria and unicellular algae except:  minor substitutions in some Prochlorococcus & Dinoflagellate sequences. The antibody should still work against these taxa, but it has not been tested yet.  This antibody does not detect PsbA protein (D1).

This product can be sold containing proclin if requested.

application information
Recommended dilution 1 : 5000 (WB)
Expected | apparent MW

39.4 | 28-30 kDa

Confirmed reactivity Arabidopsis thaliana, Anabaena 7120, Ditylum brightwellii, Horderum vulgare, Chlamydomonas reinhardtii, Lotus corniculatus, Nicotiana tabacum, Oryza sativa, Pisum sativum, Phaseolus vulgaris, Phaeodactylum tricornutum, Trifolium pratense, Sinapsis alba, Synechococcus sp. PCC 7942, Synechocystis sp. PCC6803, Thalassiosira guillardii, Thalassiosira pseudonana, Ulva prolifera
Predicted reactivity

Cannabis sativa, Cucumis sativa, Glycine max, Glycine soja, Ricinus communis, Panax ginseng, Pinus thunbergii, Physcomitrella patens, Populus trichocarp, Solanum tuberosumSpinacia oleracea, Triticum aestivum, Vitis vinifera, Zea mays, Crocosphaera watsonii, Fischerella sp., Leiosporoceros dussii, Centrolepsis monogyna, Microcystis aeruginosa, Petermannia cirrosa, Vitrella brassicaformis, Chromera velia, Utricularia alpina, Aegilops tauschii, Nannochloropsis

Not reactive in No confirmed exceptions from predicted reactivity are currently known.
Additional information

There is a confirmed cross-reaction with TLA1 protein in Chlamydomonas reinhardtii.

For samples with a very low PSII content theremight be detection problems independent of the antibody. PSII proteins can vary in level depending upon liquid culture conditions. When the cells are in a stationary phase PSII content can drop to a very low level.

This product can be sold containing ProClin if requested

Selected references Myouga et al. (2018). Stable accumulation of photosystem II requires ONE-HELIX PROTEIN1 (OHP1) of the light harvesting-like family. Plant Physiol. 2018 Feb 1. pii: pp.01782.2017. doi: 10.1104/pp.17.01782. Ḱim et al. (2017). Effect of cell cycle arrest on intermediate metabolism in the marine diatom Phaeodactylum tricornutum. Proc Natl Acad Sci U S A. 2017 Sep 19;114(38):E8007-E8016. doi: 10.1073/pnas.1711642114.
Cantrell and Peers (2017). A mutant of Chlamydomonas without LHCSR maintains high rates of photosynthesis, but has reduced cell division rates in sinusoidal light conditions. PLoS One. 2017 Jun 23;12(6):e0179395. doi: 10.1371/journal.pone.0179395.
Gandini et al. (2017). The transporter SynPAM71 is located in the plasma membrane and thylakoids, and mediates manganese tolerance in Synechocystis PCC6803. New Phytol. 2017 Mar 20. doi: 10.1111/nph.14526.
Yang-Er Chen et al. (2017). Responses of photosystem II and antioxidative systems to high light and high temperature co-stress in wheat. J. of Exp. Botany, Volume 135, March 2017, Pages 45–55.
Yoshida et al. (2016). Hisabori T1.Two distinct redox cascades cooperatively regulate chloroplast functions and sustain plant viability. Proc Natl Acad Sci U S A. 2016 Jul 5;113(27):E3967-76. doi: 10.1073/pnas.1604101113. Epub 2016 Jun 22.
Mazur et al. (2016). Overlapping toxic effect of long term thallium exposure on white mustard (Sinapis alba L.) photosynthetic activity. Mazur et al. BMC Plant Biology (2016) 16:191.
Kowalewska et al. (2016). Three-dimensional visualization of the internal plastid membrane network during runner bean chloroplast biogenesis. Dynamic model of the tubular-lamellar transformation. The Plant Cell March 21, 2016 tpc.01053.2015.

Application example

2 µg of total protein from (1) Arabidopsis thaliana leaf extracted with Protein Extraction Buffer, PEB (AS08 300), (2) Hordeum vulgare leaf extracted with PEB, (3) Chlamydomonas reinhardtii total cell extracted with PEB, (4) Synechococcus sp. 7942 total cell extracted with PEB, (5) Anabaena sp. total cell extracted with PEB were 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 in the primary antibody at a dilution of 1: 50 000 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, recommended secondary antibody AS09 602) 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 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 3 seconds.


 western blot using anti-PsbD antibodies

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