UGA is read as tryptophan in Mycoplasma capricolum.

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UGA is read as tryptophan in Mycoplasma capricolum.

UGA is a nonsense or termination (opal) codon throughout prokaryotes and eukaryotes. However, mitochondria use not only UGG but also UGA as a tryptophan codon. Here, we show that UGA also codes for tryptophan in Mycoplasma capricolum, a wall-less bacterium having a genome only 20-25% the size of the Escherichia coli genome. This conclusion is based on the following evidence. First, the nucleoti...

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Prevalence of Mycoplasma Capricolum Subspecies Capricolum and Mycoplasma Putrefaciens in Goats in Pishin District of Balochistan

Several Mycoplasma species cause serious and economically important diseases in goats world-wide. Forty goat flocks in the Pishin district of Balochistan province of Pakistan were examined for the clinical cases of contagious caprine pleuropneumonia (CCPP) during 2008. Thirty goats suspected for CCPP on the basis of respiratory symptoms were euthanized for post mortem examination, microbiologic...

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Phospholipids as acyl donors to membrane proteins of Mycoplasma capricolum.

Mycoplasma capricolum, a procaryotic sterol and fatty acid auxotroph, contains a large number of membrane proteins covalently modified by both saturated and unsaturated fatty acids (Dahl, C.E., Dahl, J.S., and Bloch, K. (1983) J. Biol. Chem. 258, 11814-11818). Pulse-chase experiments show that the radioactivity in the fatty acid moieties of the acyl proteins increases rather than decreases duri...

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The ribosomal genes of Mycoplasma capricolum.

The nucleotide sequence of 5S rRNA from Mycoplasma capricolum is more similar to that of the gram-positive bacteria than that of the gram-negative bacteria. The presence of two copies of rRNA genes in M. capricolum genome has been demonstrated. The two different rRNA gene clusters have been cloned in E. coli plasmid vectors and analyzed for the rRNA gene organizations, demonstrating that the ge...

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Uptake of fatty acids by Mycoplasma capricolum.

The energy requirements for fatty acid uptake by Mycoplasma capricolum were studied. Fatty acid transport and esterification to phospholipid appeared to be tightly coupled, since there was little intracellular accumulation of free fatty acid. Uptake was blocked by iodoacetate, n-ethylmaleimide, and p-chloromercuribenzoate. Glucose, glycerol, and potassium ions were necessary for fatty acid upta...

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ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 1985

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.82.8.2306