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This compilation presents in a small space the tRNA sequences so far published. The numbering of tRNAPhe from yeast is used following the rules proposed by the participants of the Cold Spring Harbor Meeting on tRNA 1978 (1,2;Fig. 1). This numbering allows comparisons with the three dimensional structure of tRNAPhe. The secondary structure of tRNAs is(More)
Histidyl-tRNA synthetase (HisRS) is responsible for the synthesis of histidyl-transfer RNA, which is essential for the incorporation of histidine into proteins. This amino acid has uniquely moderate basic properties and is an important group in many catalytic functions of enzymes. A compilation of currently known primary structures of HisRS shows that the(More)
Glutamyl-tRNA synthetase (GluRS) belongs to the class I aminoacyl-tRNA synthetases and shows several similarities with glutaminyl-tRNA synthetase concerning structure and catalytic properties. Phylogenetic studies suggested that both diverged from an ancestral glutamyl-tRNA synthetase responsible for the gluta-mylation of tRNA(Glu) and tRNA(Gln), and whose(More)
INTRODUCTION In this compilation of tRNA genes the sequences have been aligned and displayed as has been done in the case of the tRNA sequences (Fig. 1 in preceding paper). The nucleotides preceding nucleotide residue 1 and the nucleotides following nucleotide residue 73 and the intervening sequences (see footnotes) have been excluded from the compilation.(More)
Glycyl-tRNA synthetase, a class II aminoacyl-tRNA synthetase, catalyzes the synthesis of glycyl-tRNA, which is required to insert glycine into proteins. In a side reaction the enzyme also synthesizes dinuceloside polyphosphates, which probably participate in regulation of cell functions. Glycine is the smallest amino acid occurring in natural proteins,(More)
The extracellular loop of P2X channel proteins contains a sequence stretch (positions 170-330) that exhibits similarities with the catalytic domains of class II aminoacyl-tRNA synthetases as shown by secondary structure predictions and sequence alignments. The arrangement of several conserved cysteines (positions 110-170) shows similarities with metal(More)
Lysyl-tRNA synthetase catalyses the formation of lysyl-transfer RNA, Lys-tRNA(Lys), which then is ready to insert lysine into proteins. Lysine is important for proteins since it is one of only two proteinogenic amino acids carrying an alkaline functional group. Seven genes of lysyl-tRNA synthetases have been localized in five organisms, and the nucleotide(More)
Among the twenty aminoacyl-tRNA synthetases glutaminyl-tRNA synthetase occupies a special position: it is one of only two enzymes of this family which is not found in all organisms, being mainly absent from gram positive eubacteria, archaebacteria and organelles. The E. coli GlnRS is relatively small with 553 amino acids and a molecular mass of 64.4 kDa and(More)
  • Dr. H. Gauß
  • Archiv für Psychiatrie und Nervenkrankheiten
  • 2005
1. Bei vergleichenden Reihenuntersuchungen über den Gefäßverlauf in der Netzhaut an Normalen und schwachsinnigen Kindern konnten wesentliche Unterschiede nicht festgestellt werden. Bei den schwachsinnigen Kindern wurden in 25%, bei normalen in 30% Variationen des Gefäßverlaufs, die im Bereich des Physiologischen liegen, gefunden. 2. Vereinzelt erhobene(More)