Two methionine tRNAs from yeast mitochondria have been purified. The mitochondrial initiator tRNA has been identified by formylation using a mitochondrial enzyme extract. E. coli transformylase however, does not formylate the yeast mitochondrial initiator tRNA. The sequence was determined using both 32P-in vivo labeled and 32P-end labeled mt tRNAf(Met). This tRNA, unlike N. crassa mitochondrial...

MNDO semi-empirical SCF MO calculations are used to study the pyramidal nitrogen atom inversion and configurational equilibria in the title compounds.

Here, we describe a new and simple synthetic strategy to various polycyclic sulfones via Diels-Alder reaction and ring-rearrangement metathesis (RRM) as the key steps. This approach delivers tri- and tetracyclic sulfones with six (n = 1), seven (n = 2) or eight-membered (n = 3) fused-ring systems containing trans-ring junctions unlike the conventional all cis-ring junctions generally obtained d...

Let m(n) denote the maximum size of a family of subsets which does not contain two disjoint sets along with their union. In 1968 Kleitman proved that m(n) = ( n m+1 ) + . . . + ( n 2m+1 ) if n = 3m + 1. Confirming the conjecture of Kleitman, we establish the same equality for the cases n = 3m and n = 3m + 2, and also determine all extremal families. Unlike the case n = 3m + 1, the extremal fami...

In this paper we extend the classical Bohr’s inequality to setting of non-commutative Hardy space $H^1$ associated with a semifinite von Neumann algebra. As consequence, obtain for operators in Neumann-Schatten class $\mathcal C_1$ and square matrices any finite order. Interestingly, establish that optimal bound $r$ above mentioned concerning is 1/3 whereas it 1/2 case $2\times 2$ reduces $\s...