Lhca2 | PSI type II chloropyll a/b-binding protein
AS01 006 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Monocots and dicots; A. thaliana, A. hypogaea, B. corticulans, C. quitensis Kunt Bartl, C.reinhardti (one Lhca-type), C. zofingiensis,H. vulgare, N. tabacum, O. sativa, P. sativum, P. vulgaris, P. patens, P. banksiana, Prasinoderma sp., Pyramimonas sp., S. oleracea, Triticale, Z. mays
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BSA-conjugated synthetic peptide derived from the Lhca2 protein of Arabidopsis thaliana UniProt: Q9SYW8, Q8LCQ4, TAIR: At3g61470. This sequence is highly conserved in Lhca2 proteins of angiosperms (monocots and dicots) and gymnosperms as well as in At1g19150. This gene codes for the very low expressed Lhca6 protein which also has been denoted as Lhca2*1.
27.7 | 24 kDa for Arabidopsis thaliana
1.0 µg of chlorophyll from mesophyll (M) and bundle sheath (BS) thylakoids of various C4 plants (Echinochloa crus-galli, Panicum miliaceum, Zea mays) extracted with 0.4 M sorbitol, 50 mM Hepes NaOH, pH 7.8, 10 mM NaCl, 5 mM MgCl2 and 2 mM EDTA. Samples were denatured with Laemmli buffer at 75 0C for 5 min and were separated on 12% SDS-PAGE and blotted 30 min to PVDF using wet transfer. Blot was blocked with 5% milk for 1h at room temperature (RT) with agitation. Blot was incubated in the primary antibody at a dilution of 1: 2000 overnight at 4°C with agitation in 1% milk in TBS-T. The antibody solution was decanted and the blot was washed 4 times for 5 min in TBS-T at RT with agitation. Blot was incubated in secondary antibody (anti-rabbit IgG horse radish peroxidase conjugated, from Agrisera, AS09 602, Lot 1702) diluted to 1:25 000 in 1 % milk in TBS-T for 1h at RT with agitation. The blot was washed 5 times for 5 min in TBS-T and 2 times for 5 min in TBS, and developed for 1 min with 1.25 mM luminol, 0.198 mM coumaric acid and 0.009% H2O2 in 0.1 M Tris- HCl, pH 8.5. Exposure time in ChemiDoc System was 15 seconds.
Courtesy of Dr. Wioleta Wasilewska, Warsaw University, Poland
The light-harvesting protein Lhca2 is one of the four main and highly conserved types of chlorophyll a/b-binding proteins (Lhca1-4) of the light harvesting antenna (LHCI) of plant photosystem I. Lhca2 is imported as a precursor from the cytosol into the chloroplast. Upon integration in the thylakoid membrane Lhca2 forms a heterodimer (LHCI-680) with Lhca3 that associates with the PSI core close to PsaF and PsaK.
A biochemical characterization of the plant LHCI antenna can be found in Klimmek et al. (2005) The structure of the higher plant light harvesting complex I: in vivo characterization and structural interdependence of the Lhca proteins. Biochemistry 44: 3065–3073.
Roth et al. (2019). Regulation of Oxygenic Photosynthesis during Trophic Transitions in the Green Alga Chromochloris zofingiensis. Plant Cell. 2019 Feb 20. pii: tpc.00742.2018. doi: 10.1105/tpc.18.00742.
Mao et al. (2018). Comparison on Photosynthesis and Antioxidant Defense Systems in Wheat with Different Ploidy Levels and Octoploid Triticale. Int J Mol Sci. 2018 Oct 2;19(10). pii: E3006. doi: 10.3390/ijms19103006.
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.
Kim et al. (2018). The rice zebra3 (z3) mutation disrupts citrate distribution and produces transverse dark-green/green variegation in mature leaves. Rice (N Y). 2018 Jan 5;11(1):1. doi: 10.1186/s12284-017-0196-8.
Chen et al. (2017). Comparison of Photosynthetic Characteristics and Antioxidant Systems in Different Wheat Strains. J Plant Growth Regul.
Yang et al. (2017). Tetratricopeptide repeat protein Pyg7 is essential for photosystem I assembly by interacting with PsaC in Arabidopsis. Plant J. 2017 Jun 21. doi: 10.1111/tpj.13618.
Míguez et al. (2017). Diversity of winter photoinhibitory responses: A case study in co-occurring lichens, mosses, herbs and woody plants from subalpine environments. Physiol Plant. 2017 Feb 14. doi: 10.1111/ppl.12551.
Hu et al. (2017). The SUFBC2 D Complex is Required for the Biogenesis of All Major Classes of Plastid Fe-S Proteins. Plant J. 2017 Jan 19. doi: 10.1111/tpj.13483.
Kunugi et al. (2016). Evolution of Green Plants Accompanied Changes in Light-Harvesting Systems. Plant Cell Physiol. 2016 Jun;57(6):1231-43. doi: 10.1093/pcp/pcw071. Epub 2016 Apr 6.
Qin et al. (2014). Isolation and characterization of a PSI-LHCI super-complex and its sub-complexes from a siphonaceous marine green alga, Bryopsis Corticulans. Photosynth Res. 2014 Sep 12.
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