SELECTION AND CHARACTERIZATION OF ASPARTOKINASE FEEDBACK-INSENSITIVE MUTANTS OF AZOTOBACTER-VINELANDII

Authors
EKECHUKWU CR BURNS TA MELTON T
Citation
Cr. Ekechukwu et al., SELECTION AND CHARACTERIZATION OF ASPARTOKINASE FEEDBACK-INSENSITIVE MUTANTS OF AZOTOBACTER-VINELANDII, Applied and environmental microbiology, 61(8), 1995, pp. 3189-3191
Citations number
29
Categorie Soggetti
Microbiology,"Biothechnology & Applied Migrobiology
Journal title
Applied and environmental microbiology → ACNP
ISSN journal
00992240
Volume
61
Issue
8
Year of publication
1995
Pages
3189 - 3191
Database
ISI
SICI code
0099-2240(1995)61:8<3189:SACOAF>2.0.ZU;2-V
Abstract
Aspartokinase feedback-insensitive mutants of Azotobacter vinelandii w ere selected as resistant to L-threonine, beta-hydroxynorvaline, or S- (2-aminoethyl)-L-cysteine. L-Threonine-resistant strains were classifi ed into three groups based on their ability to transport L threonine a nd their growth response to O-methylthreonine and beta-hydroxynorvalin e. Most of the mutants were transport defective; however, some were de sensitized to feedback regulation.