Search Results - "Hawrelak, S. D"

Nucleic acid related compounds. 30. Transformations of adenosine to the first 2',3'-aziridine-fused nucleosides, 9-(2,3-epimino-2,3-dideoxy-.beta.-D-ribofuranosyl)adenine and 9-(2,3-epimino-2,3-dideoxy-.beta.-D-lyxofuranosyl)adenine by Robins, Morris J, Hawrelak, S. D, Kanai, Tadashi, Siefert, Jan Marcus, Mengel, Rudolf

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Hydrolysis of ribonucleoside 3'-diphosphates by rye grass 3'-nucleotidase by Hecht, Sidney M, Hawrelak, S. D

“…Rye grass 3'-nucleotidase has been purified to apparent homogeneity on Sephadex A-25 and CM-cellulose columns and shown to hydrolyze 2'-O-methyladenosine…”
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Synthesis and biological activity of pyrazolo[3,4-d]pyrimidine nucleosides and nucleotides related to tubercidin, toyocamycin, and sangivamycin by Hecht, Sidney M, Frye, R. Bruce, Werner, Dieter, Fukui, Toshikazu, Hawrelak, S. D

“…The 6-aza analogues of toyocamycin and sangivamycin were prepared as potential cytotoxic agents. The toyocamycin analogue…”
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Interaction of glycyl-L-phenylalanine with Escherichia coli phenylalanyl-tRNA synthetase by Hecht, Sidney M, Hawrelak, S. D

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On the "activation" of cytokinins by Hecht, S M, Frye, R B, Werner, D, Hawrelak, S D, Skoog, F, Schmitz, R Y

“…A number of cytokinin analogs containing modifications in the heterocyclic moiety were prepared. These compounds were tested for activity as cytokinins and…”
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Competitive Inhibition of Beef Heart Cyclic AMP Phosphodiesterase by Cytokinins and Related Compounds by Hecht, Sidney M., Faulkner, Robert D., Hawrelak, S. D.

“…Two cytokinins and four related analogs, none of which is a cyclic ribonucleotide, have been shown to act as competitive inhibitors of the high Kmcyclic-AMP…”
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Chemical modifications of transfer RNA species. Transfer RNA's terminating in 2'- and 3'-O-methyladenosine by Hecht, S M, Hawrelak, S D, Kozarich, J W, Schmidt, F J, Bock, R M

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