Properties of yeast pyruvate decarboxylase and their modification by proteolytic enzymes : II. Selective alteration by yeast proteases
dc.contributor.author | Juni, Elliot | en_US |
dc.contributor.author | Heym, Gloria A. | en_US |
dc.date.accessioned | 2006-04-17T15:32:04Z | |
dc.date.available | 2006-04-17T15:32:04Z | |
dc.date.issued | 1968 | en_US |
dc.identifier.citation | Juni, Elliot, Heym, Gloria A. (1968)."Properties of yeast pyruvate decarboxylase and their modification by proteolytic enzymes : II. Selective alteration by yeast proteases." Archives of Biochemistry and Biophysics 127(): 89-100. <http://hdl.handle.net/2027.42/33236> | en_US |
dc.identifier.uri | http://www.sciencedirect.com/science/article/B6WB5-4DV0510-77/2/3108fc88cb7d1003375812c07e108f81 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/33236 | |
dc.identifier.uri | http://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=5681431&dopt=citation | en_US |
dc.description.abstract | Pyruvate decarboxylase has been shown to be more heat labile in extracts of a mutant strain than in extracts of the parent yeast strain. Mutant extracts were found to contain higher levels of proteolytic enzymes than wild-type extracts, although aging of the latter preparations resulted in the activation of inactive proteases. A partially purified protease preparation was shown to degrade pyruvate decarboxylase in a selective manner such that the ability to form free acetaldehyde was destroyed while the acetylmethylcarbinol-forming activity was increased 60%. Pyruvate, or a mixture of pyruvate and acetaldehyde, was partly successful in protecting pyruvate decarboxylase from the action of the protease. Stabilization of pyruvate decarboxylase by high concentrations of phosphate, sulfate, or glycerol has been shown to be due to the inhibitory action of these compounds on yeast proteases. Pyruvate decarboxylase which was partially degraded by the protease had different relative activities on a series of [alpha]-keto acids from the corresponding activities of a nondegraded decarboxylase preparation. The data presented are in accord with a two-site mechanism postulated for pyruvate decarboxylase. | en_US |
dc.format.extent | 1032603 bytes | |
dc.format.extent | 3118 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Elsevier | en_US |
dc.title | Properties of yeast pyruvate decarboxylase and their modification by proteolytic enzymes : II. Selective alteration by yeast proteases | en_US |
dc.type | Article | en_US |
dc.rights.robots | IndexNoFollow | en_US |
dc.subject.hlbsecondlevel | Public Health | en_US |
dc.subject.hlbsecondlevel | Chemistry | en_US |
dc.subject.hlbsecondlevel | Chemical Engineering | en_US |
dc.subject.hlbsecondlevel | Biological Chemistry | en_US |
dc.subject.hlbtoplevel | Engineering | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.subject.hlbtoplevel | Health Sciences | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | Department of Microbiology, The University of Michigan, Ann Arbor, Michigan 48104, USA | en_US |
dc.contributor.affiliationum | Department of Microbiology, The University of Michigan, Ann Arbor, Michigan 48104, USA | en_US |
dc.identifier.pmid | 5681431 | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/33236/1/0000626.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1016/0003-9861(68)90205-1 | en_US |
dc.identifier.source | Archives of Biochemistry and Biophysics | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
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