HSP70 | Heat shock protein 70 (cytoplasmic)
AS08 371 | Clonality: Polyclonal | Host: Rabbit | Reactivity: A. thaliana, C. sativus, C. reinhardtii, D. subspicatus, E. tef, G. vermiculophylla, H. vulgare, M. sativa, O. sativa, P. strobus, Salicornia sp., S. italica. S. vulgaris, S. lycopersicum, Trebouxia TR1 and TR9, T. aestivum, Z. mays, P. falciparum, V. faba
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1µg of total protein from Horderum vulgare pre heat shock leaf (1), Horderum vulgare post heat shock (2h 40ºC) (2), Zea mays pre heat shock total protein leaf (3), Zea mays post heat shock (2h 40ºC) (4), total protein leaf extracted with Agrisera Protein Eextraction Buffer (AS08 300) were separated on 4-12% NuPage (Invitrogen) LDS-PAGE and blotted 1h to PVDF (Milipore). Filters were blocked 1h with 2% low-fat milk powder in TBS-T (0.1% TWEEN 20) and probed with anti-HSP70 antibody (AS08 371, 1:20 000, 1h) and secondary anti-rabbit (1:20 000, 1 h) antibody (HRP conjugated) in TBS-T containing 2% low fat milk powder. All steps were performed at RT with agitation. Signal was detected with chemiluminescent detection reagent with extreme femtogram range.
Protein from Solanum lycopersicum (1) total cell extract ca. 30 -50 µg, (2) and (3) nuclei pellet , (4) and (5) ca. 7 µg of nuclei fraction, (6) and (7) cytoplasmic pellet, (8) ca. 7 µg of cytoplasm fraction, were separated on 10% SDS-PAGE and blotted 1h to nitrocellulose (Schleicher & Schuell). Filters were blocked 1h with 2% low-fat milk powder in TBS-T (0.1% TWEEN 20) and probed with anti-HSP70 antibody (AS08 371, 1:5000, 3h RT). The antibody solution was decanted and the blot was rinsed briefly. Washed 3 times for 15 min in TBS-T at room temperature with agitation. Blot was incubated with a secondary antibody (anti-rabbit IgG horse radish peroxidase conjugated) diluted to 1: 5:000. The blot was washed as above and developed for 1 min with ECL detection reagent according to the manufacturers instructions.
Courtesy Dr Rena Gorovits, The Hebrew University of Jerusalem, Israel
200 fmoles of HSP70 protein standard product number AS08 371S (1), 1 µg of total protein from samples such as Lycopersicum esculentum leaf (2), Nicotiana tabaccum leaf, (3), Zea mays leaf (4), Hordeum vulgare leaf (5), Arabidopsis thaliana leaf (6) were extracted with Agrisera Protein Extraction Buffer PEB (AS08 300). Samples were diluted with 1X sample buffer (NuPAGE LDS sample buffer (Invitrogen) supplemented with 50 mM DTT and heat at 70°C for 5 min and keept on ice before loading. Protein samples were separated on 4- 12% Bolt Plus gels, LDS-PAGE and blotted for 70 minutes to PVDF using tank transfer. Blots were blocked immediately following transfer in 2% blocking reagent or 5% non-fat milk dissolved 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 (in blocking reagent) for 1h/RT with agitation. The antibody solution was decanted and the blot was rinsed briefly twice, and then washed 1x15 min and 3x5 min with TBS-T at room temperature with agitation. Blots were incubated in secondary antibody (anti-rabbit IgG horse radish peroxidase conjugated, recommended secondary antibody AS10 1489, Agrisera) diluted to 1:25 000 in blocking reagent for 1h at room temperature with agitation. The blots were washed as above. The blot was developed for 5 min with chemiluminescence detection reagent in extreme femtogram range, according the manufacturers instructions. Images of the blots were obtained using a CCD imager (VersaDoc MP 4000) and Quantity One software (Bio-Rad). Exposure time was 30 seconds.
Can be sold containing 0.1% ProClin if requested
This antibody can be used as a marker of cytoplasmic fraction in tomato (Anfoka et al. 2015).
Applied primary antibody dilution in western blot depends upon sensitivity of detection reagents (pico or femtogram for chemiluminescent detection).
Immunoprecipitation protocol using Agrisera anti-Hsp70 cytosolic antibodies, see tab: protocols.
Tabassum et al. (2020). FLOURY ENDOSPERM11-2 Encodes Plastid HSP70-2 Involved With Temperature-Dependent Chalkiness of Rice (Oryza Sativa L.) Grains. Plant J. 10.1111/tpj.14752
Rowarth et al. (2019). Hsp70 plays a role in programmed cell death during the remodelling of leaves of the lace plant (Aponogeton madagascariensis). J Exp Bot. 2019 Nov 6. pii: erz447. doi: 10.1093/jxb/erz447
McLoughlin et al. (2019) HSP101 Interacts with the Proteasome and Promotes the Clearance of Ubiquitylated Protein Aggregates. Plant Physiol. 2019 Aug;180(4):1829-1847. doi: 10.1104/pp.19.00263
Deng et al. (2019). Integrated proteome analyses of wheat glume and awn reveal central drought response proteins under water deficit conditions. J Plant Physiol. 2019 Jan;232:270-283. doi: 10.1016/j.jplph.2018.11.011.
Lentini et al. (2018). Early responses to cadmium exposure in barley plants: effects on biometric and physiological parameters. Acta Physiologiae Plantarum October 2018, 40:178
Fan et al. (2018). Comparative proteomic analysis of Ulva prolifera response to high temperature stress. Proteome Sci. 2018 Oct 27;16:17. doi: 10.1186/s12953-018-0145-5.
Pan et al. (2018). Comparative proteomic investigation of drought responses in foxtail millet. BMC Plant Biol. 2018 Nov 29;18(1):315. doi: 10.1186/s12870-018-1533-9.
Lentini et al. (2018). Early responses to cadmium exposure in barley plants: effects on biometric and physiological parameters. Acta Physiol Plant (2018) 40: 178. https://doi.org/10.1007/s11738-018-2752-2.
Balážová et al. (2018). Zinc oxide nanoparticles phytotoxicity on halophyte from genus Salicornia. Plant Physiol Biochem. 2018 Sep;130:30-42. doi: 10.1016/j.plaphy.2018.06.013.
Yoon et al. (2018). The subfamily II catalytic subunits of protein phosphatase 2A (PP2A) are involved in cortical microtubule organization. Planta. 2018 Sep 6. doi: 10.1007/s00425-018-3000-0.
Alamri et al. (2018). Nitric oxide-mediated cross-talk of proline and heat shock proteins induce thermotolerance in Vicia faba L. Environmental and Experimental Botany Available online 23 June 2018.
Barghetti et al. (2017). Heat-shock protein 40 is the key farnesylation target in meristem size control, abscisic acid signaling, and drought resistance. Genes Dev. 2017 Nov 15;31(22):2282-2295. doi: 10.1101/gad.301242.117.
Gorovits et al. (2017). The six Tomato yellow leaf curl virus genes expressed individually in tomato induce different levels of plant stress response attenuation. Cell Stress Chaperones. 2017 Mar 21. doi: 10.1007/s12192-017-0766-0.
Fernández-Bautista N. et al. (2017). AtHOP3, a member of the HOP family in Arabidopsis, interacts with BiP and plays a major role in the ER stress response. Plant Cell Environ. 2017 Feb 2. doi: 10.1111/pce.12927.
Hammann et al. (2016). Selection of heat‑shock resistance traits during the invasion of the seaweed Gracilaria vermiculophylla. Marine Biology 163: 104.
McLoughlin et al. (2016) Class I and II Small Heat Shock Proteins Together with HSP101 Protect Protein Translation Factors during Heat Stress. Plant Physiol. 2016 Oct;172(2):1221-1236.
Shen et al. (2016). The Arabidopsis polyamine transporter LHR1/PUT3 modulates heat responsive gene expression by enhancing mRNA stability. Plant J. 2016 Aug 19. doi: 10.1111/tpj.13310. [Epub ahead of print]
Gorovits et al. (2016). Tomato yellow leaf curl virus confronts host degradation by sheltering in small/midsized protein aggregates. Virus Res. 2016 Feb 2;213:304-13. doi: 10.1016/j.virusres.2015.11.020. Epub 2015 Dec 1.
Ghandi et al. (2016). Tomato yellow leaf curl virus infection mitigates the heat stress response of plants grown at high temperature. Sci Rep. 2016 Jan 21;6:19715. doi: 10.1038/srep19715.
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