AtpC | Gamma subunit of ATP synthase, chloroplastic
AS08 312 | Clonality: Polyclonal | Host: Rabbit | Reactivity: Arabidopsis thaliana, Chlamydomonas reinhardtii
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1: 10 000 (WB), 1: 1000 (ELISA)
|Expected | apparent MW||
35.3 | 42 (Chlamydomonas reinhardtii)
35.6 | 38 (Spinacia oleracea)
|Confirmed reactivity||Arabidopsis thaliana, Chlamydomonas reinhardtii|
Glycine max, Lens culinaris, Nicotiana tabacum, Physcomitrella patens, Pisum sativum, Populus jackii, Vitis vinifera, cyanobacteria
|Not reactive in||
no confirmed exceptions from predicted reactivity known in the moment
apparent molecular weight of subunit gamma (and as general rule most of ATP synthase subunits) is quite different between Chlamydomonas (42 kDa) and higher plants (38 kDa in spinach), see figure in Lemaire et al. (1989)
|Selected references||Naranjo et al. (2015). The chloroplast NADPH thioredoxin reductase C, NTRC, controls non-photochemical quenching of light energy and photosynthetic electron transport in Arabidopsis. Plant Cell Environ. 2015 Oct 17. doi: 10.1111/pce.12652.
Dwyer et al. (2012). Antisense reductions in the PsbO protein of photosystem II leads to decreased quantum yield but similar maximal photosynthetic rates. J. Ex. Bot. 63(13):4781-95.
10 ug of chlorophyll/well of Chlamydomonas reinhardtii total cell extract (1), Chlamydomonas reinhardtii subunit gamma deletion mutant thylakoid membrane fraction (2), Arabidospsis thaliana thylakoid membrane fraction (3), Chlamydomonas reinhardtii thylakoid membrane preparation (4) were separated on 12-18% acrylamide-8M urea gel and blotted to nitrocellulose membrane. Filters were blocked 1 h with 5% dry milk in 1 x PBS and probed with anti-ATP synthase subunit gamma antibody (AS08 312, 1: 25 000, 1h) and secondary HRP-conjugated anti-rabbit antibody (1: 10 000, 1 h) in 1 x PBS containing 5% dry milk. All steps were performed at RT with agitation. Signal was detected with standard ECL (GE Healthcare), exposure time 30’’ and 3 min (overexposed).
Arabidopsis membrane preparation has been done according to Lezhneva et al. (2008) A novel pathway of cytochrome c biogenesis is involved in the assembly of the cytochrome b6f complex in arabidopsis chloroplasts. J Biol. Chem., 283:24608-24616 and Chlamydomonas membranes were prepared according to Chua & Bennoun (1975) Thylakoid membrane polypeptides of Chlamydomonas reinhardtii: wild-type and mutant strains deficient in photosystem II reaction center. PNAS 72:2175-2179
Courtesy Dr. Yves Choquet
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