{"id":{"repo_id":"vt","oai_identifier":"oai:vtechworks.lib.vt.edu:10919/41212"},"canonical_url":"https://search.dev.ndltd.org/etd/vt/oai:vtechworks.lib.vt.edu:10919/41212","repository":{"repo_id":"vt","name":"Virginia Tech","base_url":"https://vtechworks.lib.vt.edu/oai/request"},"display":{"title":"Development and characterization of cell-free amino acid incorporation systems from <u>Cellvibrio gilvus</u>","abstract":"A ribosomal system has been derived from <u>Cellvibrio gilus</u> which is active with respect to amino acid incorporation into hot trichloroacetic acid-insoluble material. Optimal incorporation systems showed a requirement for ribosomes, pH 5 enzyme protein, ATP plus ATP-generating system, magnesium ion, ammonium ion, and GTP. ¹⁴C-phenylalanine incorporation was stimulated by poly U in the presence of t-RNA which has been derived from this bacterium. The t-RNA had some activation effect on poly U-directed ¹⁴C-phenylalanine incorporation, whereas no effect on natural m-RNA primed ¹⁴C-leucine incorporation was observed. A complementary unlabeled amino acid mixture inhibited ¹⁴C-leucine incorporation. ¹⁴C-leucine incorporation was greatly inhibited by RBAase and puromycin, moderately inhibited by chloramphenicol, but not effected significantly by DNAase and actinomycin D. The optimum pH and temperature for ¹⁴C-leucine incorporation were 7.8 and 300° C, respectively. Polyamiaes (putrescine, spermine, and spermidine) had a slight stimulatory effect on poly U-directed.¹⁴C-phenylalanine incorporation, but no effect on ¹⁴C-Leucine incorporation.","abstract_html":"A ribosomal system has been derived from &lt;u&gt;Cellvibrio gilus&lt;/u&gt; which is active with respect to amino acid incorporation into hot trichloroacetic acid-insoluble material. Optimal incorporation systems showed a requirement for ribosomes, pH 5 enzyme protein, ATP plus ATP-generating system, magnesium ion, ammonium ion, and GTP. ¹⁴C-phenylalanine incorporation was stimulated by poly U in the presence of t-RNA which has been derived from this bacterium. The t-RNA had some activation effect on poly U-directed ¹⁴C-phenylalanine incorporation, whereas no effect on natural m-RNA primed ¹⁴C-leucine incorporation was observed. A complementary unlabeled amino acid mixture inhibited ¹⁴C-leucine incorporation. ¹⁴C-leucine incorporation was greatly inhibited by RBAase and puromycin, moderately inhibited by chloramphenicol, but not effected significantly by DNAase and actinomycin D. The optimum pH and temperature for ¹⁴C-leucine incorporation were 7.8 and 300° C, respectively. Polyamiaes (putrescine, spermine, and spermidine) had a slight stimulatory effect on poly U-directed.¹⁴C-phenylalanine incorporation, but no effect on ¹⁴C-Leucine incorporation.","abstract_has_math":false,"creators":["Ko, Thong-Sung"],"institution":"Virginia Tech","degree_name":"Master of Science","degree_level":"masters","degree_discipline":"Biochemistry and Nutrition","degree_department":"Biochemistry and Nutrition","school":null,"contributors":[],"advisors":[],"committee_chairs":["Barnett, Lewis B."],"committee_members":["Ackerman, C. J.","Bunce, George Edwin","Campbell, T. Colin","King, Kendall W."],"year":1967,"date_issued":"1967-02-15","date_published":"1967-02-15","updated_at":"2026-07-22T22:20:02Z","subjects":["amino acids"],"languages":[],"rights":["In Copyright"],"rights_urls":["http://rightsstatements.org/vocab/InC/1.0/"],"identifier_entries":[{"key":"dc:identifier.other","label":"Dc Identifier Other","values":["etd-02162010-020558"],"render_values":[{"text":"etd-02162010-020558","href":null,"code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10919/41212","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.committeechair","label":"Committee Chair","values":["Barnett, Lewis B."]},{"key":"dc:contributor.committeemember","label":"Committee Member","values":["Ackerman, C. J.","Bunce, George Edwin","Campbell, T. 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Optimal incorporation systems showed a requirement for ribosomes, pH 5 enzyme protein, ATP plus ATP-generating system, magnesium ion, ammonium ion, and GTP. ¹⁴C-phenylalanine incorporation was stimulated by poly U in the presence of t-RNA which has been derived from this bacterium. The t-RNA had some activation effect on poly U-directed ¹⁴C-phenylalanine incorporation, whereas no effect on natural m-RNA primed ¹⁴C-leucine incorporation was observed. A complementary unlabeled amino acid mixture inhibited ¹⁴C-leucine incorporation. ¹⁴C-leucine incorporation was greatly inhibited by RBAase and puromycin, moderately inhibited by chloramphenicol, but not effected significantly by DNAase and actinomycin D. The optimum pH and temperature for ¹⁴C-leucine incorporation were 7.8 and 300° C, respectively. Polyamiaes (putrescine, spermine, and spermidine) had a slight stimulatory effect on poly U-directed.¹⁴C-phenylalanine incorporation, but no effect on ¹⁴C-Leucine incorporation."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["Master of Science"]},{"key":"dc:format.medium","label":"Dc Format Medium","values":["BTD"]},{"key":"dc:format.mimetype","label":"Dc Format Mimetype","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Development and characterization of cell-free amino acid incorporation systems from <u>Cellvibrio gilvus</u>"]}]}],"canonical_facts":{"dc:contributor.committeechair":["Barnett, Lewis B."],"dc:contributor.committeemember":["Ackerman, C. J.","Bunce, George Edwin","Campbell, T. 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A complementary unlabeled amino acid mixture inhibited ¹⁴C-leucine incorporation. ¹⁴C-leucine incorporation was greatly inhibited by RBAase and puromycin, moderately inhibited by chloramphenicol, but not effected significantly by DNAase and actinomycin D. The optimum pH and temperature for ¹⁴C-leucine incorporation were 7.8 and 300° C, respectively. Polyamiaes (putrescine, spermine, and spermidine) had a slight stimulatory effect on poly U-directed.¹⁴C-phenylalanine incorporation, but no effect on ¹⁴C-Leucine incorporation."],"dc:description.degree":["Master of Science"],"dc:format.medium":["BTD"],"dc:format.mimetype":["application/pdf"],"dc:identifier.other":["etd-02162010-020558"],"dc:identifier.uri":["http://hdl.handle.net/10919/41212"],"dc:publisher":["Virginia Tech"],"dc:rights":["In Copyright"],"dc:rights.uri":["http://rightsstatements.org/vocab/InC/1.0/"],"dc:subject":["amino acids"],"dc:title":["Development and characterization of cell-free amino acid incorporation systems from <u>Cellvibrio gilvus</u>"],"dc:type":["Thesis"],"dc:type.dcmitype":["Text"],"thesis:degree_discipline":["Biochemistry and Nutrition"],"thesis:degree_level":["masters"],"thesis:degree_name":["Master of Science"],"thesis:institution_name":["Virginia Polytechnic Institute"]},"updated_at":"2026-07-22T22:20:02Z"}