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Dive into the research topics where L N Ornston is active.

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Featured researches published by L N Ornston.


Journal of Bacteriology | 2000

Bacteria Are Not What They Eat: That Is Why They Are So Diverse

Parke D; D'Argenio Da; L N Ornston

Microorganisms in the environment encounter a varied and not invariably benign diet. The primary suppliers of nutrients for microorganisms are plants. Consumers such as fungi and bacteria do not act singly and often offer plants a return on their investment. Fixed nitrogen and scavenged minerals are


Journal of Bacteriology | 1991

Nucleotide sequences of the Acinetobacter calcoaceticus benABC genes for benzoate 1,2-dioxygenase reveal evolutionary relationships among multicomponent oxygenases.

Ellen L. Neidle; C Hartnett; L N Ornston; Amos Marc Bairoch; M Rekik; S Harayama


Journal of Bacteriology | 1987

Cloning and genetic organization of the pca gene cluster from Acinetobacter calcoaceticus.

R C Doten; K L Ngai; D J Mitchell; L N Ornston


Journal of Bacteriology | 1990

DNA sequences of genes encoding Acinetobacter calcoaceticus protocatechuate 3,4-dioxygenase: evidence indicating shuffling of genes and of DNA sequences within genes during their evolutionary divergence.

C Hartnett; Ellen L. Neidle; Ka-Leung Ngai; L N Ornston


Journal of Bacteriology | 1988

DNA sequence of the Acinetobacter calcoaceticus catechol 1,2-dioxygenase I structural gene catA: evidence for evolutionary divergence of intradiol dioxygenases by acquisition of DNA sequence repetitions.

Ellen L. Neidle; C Hartnett; S Bonitz; L N Ornston


Journal of Bacteriology | 1993

Identification of the transcriptional activator pobR and characterization of its role in the expression of pobA, the structural gene for p-hydroxybenzoate hydroxylase in Acinetobacter calcoaceticus.

A A DiMarco; B Averhoff; L N Ornston


Journal of Bacteriology | 1986

Cloning and expression of Acinetobacter calcoaceticus catBCDE genes in Pseudomonas putida and Escherichia coli.

M S Shanley; Ellen L. Neidle; R E Parales; L N Ornston


Biochemistry | 2000

Structure of Acinetobacter strain ADP1 protocatechuate 3, 4-dioxygenase at 2.2 A resolution: implications for the mechanism of an intradiol dioxygenase.

Matthew W. Vetting; D.A D'Argenio; L N Ornston; Douglas H. Ohlendorf


Journal of Bacteriology | 1994

Regulation of p-hydroxybenzoate hydroxylase synthesis by PobR bound to an operator in Acinetobacter calcoaceticus.

A A DiMarco; L N Ornston


Journal of Bacteriology | 1989

Characterization of Acinetobacter calcoaceticus catM, a repressor gene homologous in sequence to transcriptional activator genes.

Ellen L. Neidle; C Hartnett; L N Ornston

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