Abstract
The native l -serine deaminase ( l -serine hydrolyase, deaminating, EC 4.2.1.13) of Escherichia coli K-12, which seems to be a very labile protein, is rather stable in concentrated solution. Dilution rapidly inactivates it, but in the presence of a saturating concentration of l -serine the molecule is protected from inactivation. It is a very specific enzyme; l -serine is the sole substrate with a K m value of 6.60 × 10 −3 m. d -Serine and l -cysteine are competitive inhibitors. Substrate saturation curves of the native enzyme show sigmoid shape, whereas the enzyme liberated from the bacteria in the presence of l -serine exhibits normal Michaelis-Menten kinetics.
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Dates
Type | When |
---|---|
Created | 5 years, 7 months ago (Jan. 4, 2020, 9:11 p.m.) |
Deposited | 4 years, 1 month ago (July 29, 2021, 12:49 p.m.) |
Indexed | 1 year, 4 months ago (April 29, 2024, 11:13 a.m.) |
Issued | 56 years, 9 months ago (Nov. 1, 1968) |
Published | 56 years, 9 months ago (Nov. 1, 1968) |
Published Print | 56 years, 9 months ago (Nov. 1, 1968) |
@article{Alf_ldi_1968, title={<scp>l</scp> -Serine Deaminase of Escherichia coli}, volume={96}, ISSN={1098-5530}, url={http://dx.doi.org/10.1128/jb.96.5.1512-1518.1968}, DOI={10.1128/jb.96.5.1512-1518.1968}, number={5}, journal={Journal of Bacteriology}, publisher={American Society for Microbiology}, author={Alföldi, Lajos and Raskó, István and Kerekes, Erzsébet}, year={1968}, month=nov, pages={1512–1518} }