PsbP | 23 kDa protein of the oxygen evolving complex (OEC) of PSII (anti-protein)

Product no: AS06 142-23

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

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  • Product Info
  • Immunogen:

    native, purified 23 kDa protein from Spinacia oleracea,UniProt: P12302

    Host: Rabbit
    Clonality: Polyclonal
    Purity: Total IgG. Protein G purified in PBS pH 7.4.
    Format: Lyophilized
    Quantity: 200 g
    Reconstitution: For reconstitution add 200 l of sterile water
    Storage: Store lyophilized/reconstituted at -20C; once reconstituted make aliquots to avoid repeated freeze-thaw cycles. Please remember to spin the tubes briefly prior to opening them to avoid any losses that might occur from material adhering to the cap or sides of the tube.
    Tested applications: Western blot (WB)
    Recommended dilution: 1 : 2000-1 : 5000 (WB)
    Expected | apparent MW:

    28 | 23 kDa

  • Reactivity
  • Confirmed reactivity: Arabidopsis thaliana, Chlamydomonas reinhardti, Hordeum vulgare, Pinus banksiana, Spinacia oleracea, Triticum aestivum
    Predicted reactivity: Musa acuminata, Oryza sativa, Pinus monticola, Pisum sativum, Populus balsamifera, Solanum lycopersicum
    Species of your interest not listed? Contact us
    Not reactive in:

    Synechococcus sp. PCC 7942

  • Application Examples
  • Application example

    western blot using anti-PsbP antibodies

    2 µg of total protein from Arabidopsis thaliana leaf (1)  Hordeum vulgare leaf (2),  Chlamydomonas reinhardtii total cell (3)Synechococcus sp. 7942 total cell (4), 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%  blocking reagent 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: 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) diluted to 1:50 000 in 2% blocking solution for 1h at room temperature with agitation. The blots were washed as above and developed for 5 min with chemiluminescent 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).

  • Additional Information
  • Additional information (application):

    Load per well on cell extract of Pinus banksiana (Jack Pine) was 7 µg.

    This antibody can be used as a loading control for Chlamydomonas reinhardtii while it not so suitable for higher plants as accumulation of these proteins might drop to 12.5-25 % of the WT level in mutants defective for PSII core (Schult et al. 2007).

  • Background
  • Background:

    PSII reaction centre components are  generating the redox potential required to drive highly oxidizing water splitting reaction. Four Mn atoms are present on a lumenal surface and form the catalyctic site          of the water-splitting reaction which is in close association with the 33 kDa (PsbO), 23 kDa (PsbP) and 17 kDa (PsbQ) extrinistic subunits of oxygen evolving complex OEC. A 33-kDa extrinsic protein is also termed the Mn-stabilizing protein (MSP), however recent evidences shown that it is C-terminal domain of PsbA (D1) protein which is involved in in the assembly and stabilization of the OEC.

  • Product Citations
  • Selected references: Lim et al (2022). Arabidopsis guard cell chloroplasts import cytosolic ATP for starch turnover and stomatal opening. Nat Commun. 2022 Feb 3;13(1):652. doi: 10.1038/s41467-022-28263-2. PMID: 35115512; PMCID: PMC8814037.
    Lim et al (2022) Arabidopsis guard cell chloroplasts import cytosolic ATP for starch turnover and stomatal opening. Nat Commun. 2022 Feb 3;13(1):652. doi: 10.1038/s41467-022-28263-2. PMID: 35115512; PMCID: PMC8814037.
    Cecchin et al (2021) LPA2 protein is involved in photosystem II assembly in Chlamydomonas reinhardtii. Plant J. 2021 Jul 4. doi: 10.1111/tpj.15405. Epub ahead of print. PMID: 34218480.
    Jiang et al. (2020). Plastid chaperone HSP90C guides precursor proteins to the SEC translocase for thylakoid transport. J Exp Bot. 2020 Aug 27;eraa399.doi: 10.1093/jxb/eraa399.
    Nama et al. (2018). Non-photochemical quenching-dependent acclimation and thylakoid organization of Chlamydomonas reinhardtii to high light stress. Photosynth Res. 2018 Jul 7. doi: 10.1007/s11120-018-0551-7.
  • Protocols
  • Agrisera Western Blot protocol and video tutorials

    Protocols to work with plant and algal protein extracts
  • Reviews:
  • Reviews
    Below, you can grade the product on a scale from 0 to 5.
    Please also provide information about species, application, dilution and obtained result for the reviewed antibody.
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    Number of reviews: (1)
    Soujanya Kuntam | 2021-11-09
    0 | 0
    We used this antibody to detect PsbP in complete protein extracts of C. reinhardtii using western blotting. The antibody was used at 1:1000 dilution and worked well without much optimization needed

Accessories

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,
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