tryptophan synthase activity

Five monoclonal antibodies recognizing five different epitopes of the native beta 2 subunit of Escherichia coli tryptophan… (More)

Twelve monoclonal antibodies directed against the beta 2 subunit of Escherichia coli tryptophan synthase (EC 4.2.1.20) were… (More)

Whole cells of Escherichia coli B 10 having high tryptophan synthetase activity were used directly as an enzyme source to produce… (More)

A hybrid ColE1 plasmid [pYe(trp5)1], containing a yeast DNA segment that complements auxotrophic point mutations and deletions in… (More)

THE P-group R factor RP4 originally isolated from Pseudomonas aeruginosa can be transferred to many Gram-negative bacteria1–3. In… (More)

Thirty-one tryptophan-requiring mutants of Coprinus lagopus have been assigned by genetic and complementation analyses to four… (More)

The ricinine content of etiolated seedlings of Ricinus communis increased nearly 12-fold over a 4-day period. In plants… (More)

The failure of l-leucine to stimulate ergot alkaloid production in a synthetic medium indicates that the previously observed… (More)

A direct relation between gene dosage and amount of the corresponding protein is generally assumed to exist though it has been… (More)