Now showing items 1-10 of 12
Β-aminoisobutyric acid (BAIB) excretion in urine of residents of eight communities in the states of MichoacÁn and Oaxaca, Mexico Supported in part by U. S. Public Health Service grant GM 09252.
(Wiley Subscription Services, Inc., A Wiley Company, 1969-01)
The ratio of Β-aminoisobutyric acid to neutral amino acids (BAIB/N) in urine was determined in 474 Mexicans from three communities in the state of MichoacÁn and five in Oaxaca. The frequency curves vary significantly between ...
Synthesis and maturation of phage P22 DNA : II. Properties of temperature-sensitive phage mutants defective in DNA metabolism
(Elsevier, 1968-06-28)
Three temperature-sensitive mutants of phage P22 have been isolated which are defective in phage DNA metabolism. After infection at restrictive temperature, one mutant (ts 12.1) fails to synthesize measurable quantities ...
A phage P22 gene controlling integration of prophage
(Elsevier, 1967-02)
A mutually noncomplementing group of phage P22 mutants (L mutants) have been isolated which cannot accomplish a late step necessary for prophage integration. L mutants produce turbid plaques and lead to cell survival on ...
The synthesis of phage and host dna in the establishment of lysogeny
(Elsevier, 1965-04)
A method of extraction is described which prevents excessive fragmentation of bacterial DNA. The larger bacterial DNA can then be separated from the phage DNA on sucrose gradients. The relative amounts of phage and host ...
Characterization of a mutant human erythrocyte carbonic anhydrase: Carbonic anhydrase IcGuam: The amino acid substitution and carboxylesterase and hydratase activities
(Elsevier, 1966-11)
Evidence is presented which indicates that an arginine residue has substituted for a glycine residue in the abnormal human erythrocyte carbonic anhydrase, CA IcGuam. The ratio of the amount of mutant to normal enzyme ...
Esterase and hydrase activity of carbonic anhydrase-I from primate erythrocytes
(Elsevier, 1964-01-06)
Carboxylic esterase activity toward the acetate and butyrate esters of [alpha]- and [beta]-naphthol is associated with two forms of erythrocyte carbonic anhydrase (CA-I, CA-II) in man (Tashian , 1963) and other primate ...
GENETIC AND PHYLOGENETIC VARIATION IN THE DIFFERENT MOLECULAR FORMS OF MAMMALIAN ERYTHROCYTE CARBONIC ANHYDRASES *
(Blackwell Publishing Ltd, 1968-06)
The action of streptonigrin on bacterial DNA metabolism and on induction of phage production in lysogenic bacteria
(Elsevier, 1963-12)
Net DNA synthesis is preferentially inhibited in Salmonella typhimurium by treatment with the antibiotic streptonigrin. As with other agents that affect DNA synthesis, short exposures to streptonigrin result in excellent ...
Enzymatic synthesis of carbonic anhydrases by human reticulocytes
(Elsevier, 1969-11-19)
Human reticulocyte-rich blood incubated 4h at 37[deg] in O2-CO2 (95:5, v/v) with 3H- or 14C-tagged amino acids revealed incorporation of the label into carbonic anhydrase I and II, Hb A, and in one patient, into Hb S. No ...
Hexokinase isozyme variability in Drosophila robusta
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1969-10)
Several isozymes of hexokinase have been found in Drosophila robusta . These have been defined in this paper in several dimensions, including genetic variation, ontogenic variation, tissue-organ variation, and substrate ...