L-Asparaginase Production by Erwinia aroideae1
نویسندگان
چکیده
منابع مشابه
Factors influencing L-asparaginase production by Erwinia aroideae.
Increased yields of L-asparaginase from Erwinia aroideae NRRL B-138 were obtained by medium enrichment techniques coupled with aeration optimization.
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The physicochemical properties of the antileukemic Lasparaginase from Erwinia carotovora have been studied and compared with those of the corresponding clinically effective enzyme from Escherichia coli B. Although both enzymes are tetramers with similar molecular weight, the amino acid compositions are distinctly different and the Erwinia enzyme is more basic as judged by polyacrylamide electro...
متن کاملL-asparaginase production by various bacteria.
Of 123 species of bacteria surveyed for L-asparaginase synthesis, Erwinia aroideae NRRL B-138 provided the highest yields.
متن کاملProduction of L-asparaginase by filamentous fungi.
L-asparaginase production was investigated in the filamentous fungi Aspergillus tamarii and Aspergillus terreus. The fungi were cultivated in medium containing different nitrogen sources. A. terreus showed the highest L-asparaginase (activity) production level (58 U/L) when cultivated in a 2% proline medium. Both fungi presented the lowest level of L-asparaginase production in the presence of g...
متن کاملAtomic resolution structure of Erwinia chrysanthemi L-asparaginase.
An X-ray structure of L-asparaginase from Erwinia chrysanthemi (ErA) has been refined at 1 A resolution to an R factor of below 0.1, using data collected on a synchrotron source. With four molecules of the enzyme consisting of 327 amino acids each, this crystal contains one of the largest asymmetric units of a protein refined to date at atomic resolution. Previously, structures of ErA and of re...
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ژورنال
عنوان ژورنال: Applied Microbiology
سال: 1969
ISSN: 0003-6919
DOI: 10.1128/aem.18.1.64-67.1969