Encontrar resultados de investigación

1978
2 Citas (Scopus)

Immunogenic capacity of ribosomes of Salmonella typhi interfered with by a flagellin-like material contaminant

Cofre, G., Calderon, I. & Mora, G. C., 1978, En : Infection and Immunity. 20, 1, p. 161-166 6 p.

Resultado de la investigación: Article

Flagellin
Salmonella typhi
Ribosomes
Serum
Flagella
12 Citas (Scopus)

Isolation and Assay of Eukaryotic DNA-Dependent RNA Polymerases

Valenzuela, P., Bell, G. I., Weinberg, F. & Rutter, W. J., 1 ene 1978, En : Methods in Cell Biology. 19, C, p. 1-26 26 p.

Resultado de la investigación: Article

DNA-Directed RNA Polymerases
Nuclear RNA
Eukaryotic Cells
Enzymes
Histones
71 Citas (Scopus)

Structure and processing of yeast precursor tRNAs containing intervening sequences

O'Farrell, P. Z., Cordell, B., Valenzuela, P., Rutter, W. J. & Goodman, H. M., 1 dic 1978, En : Nature. 274, 5670, p. 438-445 8 p.

Resultado de la investigación: Article

RNA, Transfer, Tyr
RNA Precursors
Introns
Yeasts
Anticodon
155 Citas (Scopus)

Structure of yeast phenylalanine-tRNA genes: an intervening DNA segment within the region coding for the tRNA

Valenzuela, P., Venegas, A., Weinberg, F., Bishop, R. & Rutter, W. J., 1978, En : Proceedings of the National Academy of Sciences of the United States of America. 75, 1, p. 190-194 5 p.

Resultado de la investigación: Article

123 Citas (Scopus)

Studies on the duration of egg transport by the human oviduct. II. Ovum location at various intervals following luteinizing hormone peak

Croxatto, H. B., Ortiz, M. E., Díaz, S., Hess, R., Balmaceda, J. & Croxatto, H. D., 15 nov 1978, En : American Journal of Obstetrics and Gynecology. 132, 6, p. 629-634 6 p.

Resultado de la investigación: Article

Oviducts
Luteinizing Hormone
Ovulation
Eggs
Ovum
17 Citas (Scopus)

Subunits of yeast RNA polymerase I involved in interactions with DNA and nucleotides

Valenzuela, P., Bull, P., Zaldivar, J., Venegas, A. & Martial, J., 30 mar 1978, En : Biochemical and Biophysical Research Communications. 81, 2, p. 662-666 5 p.

Resultado de la investigación: Article

RNA Polymerase I
Pyridoxal Phosphate
Yeast
Nucleotides
Yeasts
107 Citas (Scopus)

Temporal relationships of estrogen, progesterone, and luteinizing hormone levels to ovulation in women and infrahuman primates

Pauerstein, C. J., Eddy, C. A., Croxatto, H. D., Hess, R., Siler-Khodr, T. M. & Croxatto, H. B., 15 abr 1978, En : American Journal of Obstetrics and Gynecology. 130, 8, p. 876-886 11 p.

Resultado de la investigación: Article

Luteinizing Hormone
Ovulation
Primates
Progesterone
Papio

Transporte de microesferas por el útero humano.

Vásquez, J., Díaz, F. & Croxatto, H., 1978, En : Revista Chilena de Obstetricia y Ginecologia. 43, 3, p. 168-174 7 p.

Resultado de la investigación: Article

Transporte ovular en mujeres tratadas con ritodrine y ergonovina.

Hess, R., Ortíz, M. E., Díaz, S. & Croxatto, H., 1978, En : Revista Chilena de Obstetricia y Ginecologia. 43, 5, p. 288-293 6 p.

Resultado de la investigación: Article

27 Citas (Scopus)

Ultrastructure of a seven-cell human embryo

Pereda, J. & Croxatto, H. B., 1978, En : Biology of Reproduction. 18, 3, p. 481-489 9 p.

Resultado de la investigación: Article

Embryonic Structures
Blastomeres
Cytoplasm
Tolonium Chloride
Zona Pellucida
1977
16 Citas (Scopus)

Application of the avidin-biotin method of gene enrichment to the isolation of long double-stranded DNA containing specific gene sequences

Pellegrini, M., Holmes, D. S. & Manning, J., 1 sep 1977, En : Nucleic Acids Research. 4, 9, p. 2961-2974 14 p.

Resultado de la investigación: Article

Avidin
Biotin
DNA
Genes
RNA
2 Citas (Scopus)

A study of the time course of egg retention activity in the rabbit oviduct

Gomez, C. V. & Croxatto, H. B., 1977, En : Journal of Reproduction and Fertility. 50, 1, p. 69-73 5 p.

Resultado de la investigación: Article

Oviducts
Ovum
Rabbits
Eggs
Ovulation
10 Citas (Scopus)

Clinical trial with subdermal implants of the progestin R-2323

Diaz, S., Pavez, M., Quinteros, E., Robertson, D. N. & Croxatto, H. B., 1 ene 1977, En : Contraception. 16, 2, p. 155-165 11 p.

Resultado de la investigación: Article

Gestrinone
Progestins
Clinical Trials
Transaminases
Fertility
2 Citas (Scopus)

Heterologous mischarging as a means of tRNA fractionation. II. Isolation of E. coli tRNA1 Val and tRNA1 Ala

León, G., Ruiz, N., Meza, L. & Krauskopf, M., ago 1977, En : Experientia. 33, 8, p. 1029-1030 2 p.

Resultado de la investigación: Article

Fractionation
Transfer RNA
Chromatography
Escherichia coli
benzoylated DEAE-cellulose
43 Citas (Scopus)

Nucleotide sequence of the yeast 5S ribosomal RNA gene and adjacent putative control regions [28]

Valenzuela, P., Bell, G. I., Masiarz, F. R., Degennaro, L. J. & Rutter, W. J., 1977, En : Nature. 267, 5612, p. 641-643 3 p.

Resultado de la investigación: Letter

55 Citas (Scopus)

Phosphorylation of yeast DNA dependent RNA polymerases in vivo and in vitro. Isolation of enzymes and identification of phosphorylated subunits

Bell, G. I., Valenzuela, P. & Rutter, W. J., 1977, En : Journal of Biological Chemistry. 252, 9, p. 3082-3091 10 p.

Resultado de la investigación: Article

30 Citas (Scopus)

Positions of sea urchin (Strongylocentrotus purpuratus) histone genes relative to restriction endonuclease sites on the chimeric plasmids pSp2 and pSp17

Holmes, D. S., Cohn, R. H., Kedes, L. H. & Davidson, N., 1977, En : Biochemistry. 16, 7, p. 1504-1512 9 p.

Resultado de la investigación: Article

Strongylocentrotus purpuratus
Sea Urchins
DNA Restriction Enzymes
Histones
Plasmids
140 Citas (Scopus)

Ribosomal RNA genes of Saccharomyces cerevisiae. I. Physical map of the repeating unit and location of the regions coding for 5 S, 5.8 S, 18 S, and 25 S ribosomal RNAs

Bell, G. I., DeGennaro, L. J., Gelfand, D. H., Bishop, R. J., Valenzuela, P. & Rutter, W. J., 1977, En : Journal of Biological Chemistry. 252, 22, p. 8118-8125 8 p.

Resultado de la investigación: Article

Ribosomal RNA
Ribosomal DNA
rRNA Genes
Yeast
Saccharomyces cerevisiae
43 Citas (Scopus)

Ribosomal RNA genes of Saccharomyces cerevisiae. II. Physical map and nucleotide sequence of the 5 S ribosomal RNA gene and adjacent intergenic regions

Valenzuela, P., Bell, G. I., Venegas, A., Sewell, E. T., Masiarz, F. R., DeGennaro, L. J., Weinberg, F. & Rutter, W. J., 1977, En : Journal of Biological Chemistry. 252, 22, p. 8126-8135 10 p.

Resultado de la investigación: Article

Intergenic DNA
Ribosomal RNA
rRNA Genes
Yeast
Saccharomyces cerevisiae
24 Citas (Scopus)

Specific alanine-tRNA species associated with fibroin biosynthesis in the posterior silk-gland of Bombyx mori L.

Meza, L., Araya, A., Leon, G., Krauskopf, M., Siddiqui, M. A. Q. & Garel, J. P., 15 may 1977, En : FEBS Letters. 77, 2, p. 255-260 6 p.

Resultado de la investigación: Article

1976
77 Citas (Scopus)

An Upper Mesozoic island-arc–back-arc system in the southern Andes and South Georgia

Suárez, M. & Pettigrew, T. H., 1 ene 1976, En : Geological Magazine. 113, 4, p. 305-328 24 p.

Resultado de la investigación: Article

island arc
continental shelf
marginal basin
Cretaceous
slate

Behaviour of the tRNA population during the process of fibroin synthesis in Bombyx mori

Krauskopf, M., Araya, A. & Siddiqui, M. A. Q., 1976, En : Archivos de Biologia y Medicina Experimentales. 10, 1-2 3, p. 65-72 8 p.

Resultado de la investigación: Article

Fibroins
fibroins
Bombyx
Bombyx mori
Transfer RNA
7 Citas (Scopus)

Effect of particle size on time course of transport of surrogate ova through the rabbit oviduct

Hodgson, B. J., Croxatto, H. B., Vargas, M. I. & Pauerstein, C. J., 1976, En : Obstetrics and Gynecology. 47, 2, p. 213-217 5 p.

Resultado de la investigación: Article

Ovum Transport
Oviducts
Particle Size
Uterus
Rabbits
1 Cita (Scopus)

In vitro degradation of ribosomes

Mora, G. & Rivas, A., 1976, En : Archivos de Biologia y Medicina Experimentales. 10, 1-2 3, p. 61-64 4 p.

Resultado de la investigación: Article

58 Citas (Scopus)

Molecular structure of yeast RNA polymerase III: Demonstration of the tripartite transcriptive system in lower eukaryotes

Valenzuela, P., Hager, G. L., Weinberg, F. & Rutter, W. J., 1976, En : Proceedings of the National Academy of Sciences of the United States of America. 73, 4, p. 1024-1028 5 p.

Resultado de la investigación: Article

35 Citas (Scopus)

Phosphorylation of yeast RNA polymerases

Bell, G. I., Valenzuela, P. & Rutter, W. J., 1976, En : Nature. 261, 5559, p. 429-431 3 p.

Resultado de la investigación: Article

DNA-Directed RNA Polymerases
Yeasts
Phosphorylation
Protein Kinases
RNA Polymerase I
63 Citas (Scopus)

Plate-tectonic model for southern Antarctic Peninsula and its relation to southern Andes

Suárez, M., 1976, En : Geology. 4, 4, p. 211-214 4 p.

Resultado de la investigación: Article

plate tectonics
island arc
Jurassic
pillow lava
marginal basin
4 Citas (Scopus)
11 Citas (Scopus)

The 24,000 dalton subunit and the activity of yeast RNA polymerases

Valenzuela, P., Bell, G. I. & Rutter, W. J., 12 jul 1976, En : Biochemical and Biophysical Research Communications. 71, 1, p. 26-31 6 p.

Resultado de la investigación: Article

RNA Polymerase I
Nuclear RNA
Density Gradient Centrifugation
Centrifugation
DNA-Directed RNA Polymerases
29 Citas (Scopus)

The relative positions of sea urchin histone genes on the chimeric plasmids pSp2 and pSp17 as studied by electron microscopy

Wu, M., Holmes, D. S., Davidson, N., Cohn, R. H. & Kedes, L. H., 1 ene 1976, En : Cell. 9, 1, p. 163-169 7 p.

Resultado de la investigación: Article

Sea Urchins
Histones
Electron microscopy
Electron Microscopy
Plasmids
12 Citas (Scopus)

Vas deferens desensitization by noradrenaline and other drugs

Miranda, H., 1976, En : Archives Internationales de Pharmacodynamie et de Therapie. 221, 2, p. 223-234 12 p.

Resultado de la investigación: Article

Vas Deferens
Reserpine
Norepinephrine
Carbachol
Acetylcholine
42 Citas (Scopus)

Yeast DNA dependent RNA polymerase I. A rapid procedure for the large scale purification of homogeneous enzyme

Valenzuela, P., Weinberg, F., Bell, G. & Rutter, W. J., 1976, En : Journal of Biological Chemistry. 251, 5, p. 1464-1470 7 p.

Resultado de la investigación: Article

37 Citas (Scopus)

Yeast DNA dependent RNA polymerases I, II and III. The existence of subunits common to the three enzymes

Valenzuela, P., Bell, G. I., Weinberg, F. & Rutter, W. J., 23 ago 1976, En : Biochemical and Biophysical Research Communications. 71, 4, p. 1319-1325 7 p.

Resultado de la investigación: Article

RNA Polymerase I
RNA Polymerase III
RNA Polymerase II
Yeast
Yeasts
46 Citas (Scopus)

Yeast RNA polymerase I: A eukaryotic zinc metalloenzyme

Auld, D. S., Atsuya, I., Campino, C. & Valenzuela, P., 22 mar 1976, En : Biochemical and Biophysical Research Communications. 69, 2, p. 548-554 7 p.

Resultado de la investigación: Article

RNA Polymerase I
Yeast
Zinc
Yeasts
Atoms
1975
9 Citas (Scopus)

Adnexal complications in women under treatment with progestogen implants

Croxatto, H. D., Díaz, S., Rosati, S. & Croxatto, H. B., 1975, En : Contraception. 12, 6, p. 629-637 9 p.

Resultado de la investigación: Article

Ovarian Cysts
Progestins
Megestrol Acetate
Tubal Pregnancy
Ectopic Pregnancy
10 Citas (Scopus)

A seven cell human egg recovered from the oviduct

Avendano, S., Croxatto, H. D., Pereda, J. & Croxatto, H. B., 1 ene 1975, En : Fertility and Sterility. 26, 12, p. 1167-1172 6 p.

Resultado de la investigación: Article

Oviducts
Ovum
Blastomeres
Eggs
Tolonium Chloride
6 Citas (Scopus)

Attempts to Programme Ovulation with Exogenous Oestrogens and LH-RH Analogue

Zañartu, J., Guiloff, E., Ibarra-Polo, A. A., Aguilera, E., Rosner, J. M., Croxatto, H. D., Croxatto, H. B., Coy, D. H. & Schally, A. V., 7 jun 1975, En : British Medical Journal. 2, 5970, p. 527-529 3 p.

Resultado de la investigación: Article

Ovulation
Gonadotropin-Releasing Hormone
Estrogens
Ethinyl Estradiol
Chorionic Gonadotropin
26 Citas (Scopus)

Clinical assessment of subdermal implants of megestrol acetate, d-norgestrel, and norethindrone as a longterm contraceptive in women

Croxatto, H. B., Díaz, S., Quinteros, E., Simoneti, L., Kaplan, E., Rencoret, R., Leixelard, P. & Mártinez, C., 1975, En : Contraception. 12, 6, p. 615-627 13 p.

Resultado de la investigación: Article

Norgestrel
Megestrol Acetate
Norethindrone
Contraceptive Agents
Pregnancy

Egg transport in the fallopian tube

Croxatto, H. B. & Ortiz, M. E. S., 1975, En : Gynecologic and Obstetric Investigation. 6, 3-4, p. 215-225 11 p.

Resultado de la investigación: Article

Fallopian Tubes
Ovum
Eggs
Oviducts
Progestins
25 Citas (Scopus)

Egg transport in the Fallopian tube

Croxatto, H. B. & Ortiz, M. E. S., 1975, En : Gynecologic Investigation. 6, 3-4, p. 215-225 11 p.

Resultado de la investigación: Review article

Fallopian Tubes
Eggs
Ovum
Oviducts
Progestins

Hormona hipotalámica sintética que libera gonadotrofinas (LH-RH) y ovulación: posibilidad de "programmar" ovulación para regular la fertilidad en la mujer

Zañartu, J., Rosner, J. M., Guiloff, E., Ibarra, A., Cheviakoff, S., Croxatto, H. D., Croxatto, H., Dabancens, A., Coy, D. H. & Schally, A. V., 1 nov 1975, En : Revista Medica de Chile. 103, 11, p. 775-779 5 p.

Resultado de la investigación: Article

25 Citas (Scopus)

Inactivation of E. coli RNA polymerase by pyridoxal 5′-phosphate: Identification of a low pKa lysine as the modified residue

Bull, P., Zaldivar, J., Venegas, A., Martial, J. & Valenzuela, P., 16 jun 1975, En : Biochemical and Biophysical Research Communications. 64, 4, p. 1152-1159 8 p.

Resultado de la investigación: Article

Pyridoxal Phosphate
DNA-Directed RNA Polymerases
Escherichia coli
Lysine
Rate constants
57 Citas (Scopus)

Inactivation of Rat Liver RNA Polymerases I and II and Yeast RNA Polymerase I by Pyridoxal 5′-Phosphate. Evidence for the Participation of Lysyl Residues at the Active Site

Martial, J., Zaldivar, J., Bull, P., Venegas, A. & Valenzuela, P., 1 nov 1975, En : Biochemistry. 14, 22, p. 4907-4911 5 p.

Resultado de la investigación: Article

RNA Polymerase I
Pyridoxal Phosphate
RNA Polymerase II
Liver
Yeast
19 Citas (Scopus)

Peptides: An analytical method for their resolution by polyacrylamide gel electrophoresis applicable to a wide range of sizes and solubilities

Rosemblatt, M. S., Margolies, M. N., Cannon, L. E. & Haber, E., 12 may 1975, En : Analytical Biochemistry. 65, 1-2, p. 321-330 10 p.

Resultado de la investigación: Article

Electrophoresis
Solubility
Polyacrylamide Gel Electrophoresis
Peptides
Fluorescamine
3 Citas (Scopus)

Regulatory effects of purine ribonucleotides on Escherichia coli adenylosuccinate synthase

Eyzaguirre, J. & Atkinson, D. E., 1 ene 1975, En : Archives of Biochemistry and Biophysics. 169, 1, p. 339-343 5 p.

Resultado de la investigación: Article

Adenylosuccinate Synthase
Ribonucleotides
Guanosine Triphosphate
Escherichia coli
Electron energy levels
8 Citas (Scopus)

Selective changes in methionine tRNA species during development of the posterior silkglands of Bombyx mori

Araya, A., Krauskopf, M. & Siddiqui, M. A. Q., 1 dic 1975, En : Biochemical and Biophysical Research Communications. 67, 3, p. 924-934 11 p.

Resultado de la investigación: Article

Fibroins
Bombyx
Silk
Transfer RNA
Methionine
7 Citas (Scopus)

Study of blood coagulation in women treated with megestrol acetate implants

Lira, P., Rivera, L., Díaz, S. & Croxatto, H. B., 1975, En : Contraception. 12, 6, p. 639-644 6 p.

Resultado de la investigación: Article

Megestrol Acetate
Prothrombin
Blood Coagulation
Blood Coagulation Tests
Blood Coagulation Disorders

Variable region sequences of two antipneumococcal antibody light chains

Cannon, E. C., Margolies, M. N., Rosemblatt, M. S. & Haber, E., 1975, En : Federation Proceedings. 34, 3

Resultado de la investigación: Article