The Swiss consumers' movement in 1941
In: Review of international co-operation: the official organ of the International Co-operative Alliance, Volume 35, p. 116-120
ISSN: 0034-6608
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In: Review of international co-operation: the official organ of the International Co-operative Alliance, Volume 35, p. 116-120
ISSN: 0034-6608
In: Environmental science and pollution research: ESPR, Volume 19, Issue 7, p. 2537-2549
ISSN: 1614-7499
We have cloned cDNAs encoding two variants of the elongation factor for protein synthesis in Xenopus laevis, called EF-1 alpha. One of these (42Sp50) is expressed exclusively in immature oocytes. It is one of two protein components of a 42S RNP particle that is very abundant in previtellogenic oocytes. The 42S RNP particle consists of various tRNAs, 5S RNA, 42Sp50 and a 5S RNA binding protein (42Sp43). A major function served by 42Sp50 appears to be the storage of tRNAs for later use in oogenesis and early embryogenesis. The second EF-1 alpha variant (EF-1 alpha O) is expressed mainly in oocytes but transiently in early embryogenesis as well. Its mRNA cannot be detected after neurulation in somatic cells. EF-1 alpha O is closely related to a third EF-1 alpha (EF-1 alpha S), discovered originally by Krieg et al. (1). EF-1 alpha S is expressed at low levels in oocytes but actively in somatic cells. The latter two proteins are very similar to known eukaryotic EF-1 alpha from other organisms and presumably function in their respective cell types to support protein synthesis.
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Partie III - Mediterranean forest-based solutions. Chapter 12 ; International audience
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Partie III - Mediterranean forest-based solutions. Chapter 12 ; International audience
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