Petite neutral petites

Petite mutants spontaneous mutants, chiefly yeasts, with chemical or physical defects in the respiratory chain. P. m. grow very slowly and form small ( petite ) colonies on nutrient agar. The same phenotype can be produced by a chromosomal mutation (segregational petite), or a mutation in the mitochondrial DNA (vegetative or neutral petite). In the latter case, mitochondrial structure is considerably altered, largely due to changes in the amino acid composition of the structural proteins of the inner mitochondrial membrane. Since these structural proteins are important for the correct arrangement and conformation of the respiratory chain enzymes, the effect of petite mutation on the respiratory chain is probably secondary. 

Viloria-Petit AM, Rak J, Hung M-C, et al. Neutralizing antibodies against epidermal growth factor and ErbB-2/neu receptor tyrosine kinases downregulate vascular endothelial growth factor production by tumor cells in vitro and In vivo. Am J Pathol 1997 151 1523-1530. 

How many different linear tripepticles can be made from three different L-a-neutral amino acids(a)using any of the three amino acids for any po si don (re petition allowed), (b) using each amino acid only once in the chain (c) How many qualitatively different amino acid analysis patterns containing all three amino... 

Monsigny M, Petit C, Roche AC (1988) Colorimetric determination of neutral sugars by a resorcinol sulfuric acid micromethod. Anal Biochem 175 525-530... 

This medicinal peptone is very salty from the large quantity of NaCl resulting from the neutralization of the HCl used. Petit, to remedy this inconvenience, replaces this acid by tartaric add, the elimination of the latter taking place almost completdy in the form of the only slightly soluble cream of tartar. 

L. Cecchetto, A. Denoyelle, D. Delahoughse, and J.-P. Petit, A silane pre-treatment for improving corrosion resistance performances of emeraldine hse-coated aluminium samples in neutral environment App/. Surf. Set, 254, 1736-1743 (2008). 

Rouelle s class (3), sels neutres qui ont une trfes petite quantite d acide, did not include what we call basic salts, since he gave as an example silver chloride, which is insoluble because of the small quantity of acid it contains, although it is quite neutral to vegetable colours. He did point out that turpeth mineral (basic mercuric sulphate) and the salt which remains in solution when turpeth is precipitated from a solution of mercuric sulphate by water, contain different proportions of acid. 

Klinger JR, Petit RD, Warbiufon RR, Wrenn DS, Amal F, HiU NS. Neutral endopeptidase inhibition attenuates development of hypoxic pulmonary hypertension in rats. J Appl Physiol 1993 75(4) 1615-1623. 

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