Find Research Outputs

1978
12 Citations (Scopus)

Isolation and Assay of Eukaryotic DNA-Dependent RNA Polymerases

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

Research output: Contribution to journalArticle

DNA-Directed RNA Polymerases
Nuclear RNA
Eukaryotic Cells
Enzymes
Histones
7 Citations (Scopus)
71 Citations (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 Dec 1978, In : Nature. 274, 5670, p. 438-445 8 p.

Research output: Contribution to journalArticle

RNA, Transfer, Tyr
RNA Precursors
Introns
Yeasts
Anticodon
155 Citations (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, In : Proceedings of the National Academy of Sciences of the United States of America. 75, 1, p. 190-194 5 p.

Research output: Contribution to journalArticle

123 Citations (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, In : American Journal of Obstetrics and Gynecology. 132, 6, p. 629-634 6 p.

Research output: Contribution to journalArticle

Oviducts
Luteinizing Hormone
Ovulation
Eggs
Ovum
17 Citations (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, In : Biochemical and Biophysical Research Communications. 81, 2, p. 662-666 5 p.

Research output: Contribution to journalArticle

RNA Polymerase I
Pyridoxal Phosphate
Yeast
Nucleotides
Yeasts
107 Citations (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 Apr 1978, In : American Journal of Obstetrics and Gynecology. 130, 8, p. 876-886 11 p.

Research output: Contribution to journalArticle

Luteinizing Hormone
Ovulation
Primates
Progesterone
Papio

Transporte de microesferas por el útero humano.

Translated title of the contribution: Transportation of microspheres by the human uterusVásquez, J., Díaz, F. & Croxatto, H., 1978, In : Revista Chilena de Obstetricia y Ginecologia. 43, 3, p. 168-174 7 p.

Research output: Contribution to journalArticle

Transporte ovular en mujeres tratadas con ritodrine y ergonovina.

Translated title of the contribution: Ovum transport in women treated with ritodrine and ergonovineHess, R., Ortíz, M. E., Díaz, S. & Croxatto, H., 1978, In : Revista Chilena de Obstetricia y Ginecologia. 43, 5, p. 288-293 6 p.

Research output: Contribution to journalArticle

27 Citations (Scopus)

Ultrastructure of a seven-cell human embryo

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

Research output: Contribution to journalArticle

Embryonic Structures
Blastomeres
Cytoplasm
Tolonium Chloride
Zona Pellucida
1977
16 Citations (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, In : Nucleic Acids Research. 4, 9, p. 2961-2974 14 p.

Research output: Contribution to journalArticle

Avidin
Biotin
DNA
Genes
RNA
2 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

Oviducts
Ovum
Rabbits
Eggs
Ovulation
10 Citations (Scopus)

Clinical trial with subdermal implants of the progestin R-2323

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

Research output: Contribution to journalArticle

Gestrinone
Progestins
Clinical Trials
Transaminases
Fertility
2 Citations (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., Aug 1977, In : Experientia. 33, 8, p. 1029-1030 2 p.

Research output: Contribution to journalArticle

Fractionation
Transfer RNA
Chromatography
Escherichia coli
benzoylated DEAE-cellulose
43 Citations (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, In : Nature. 267, 5612, p. 641-643 3 p.

Research output: Contribution to journalLetter

55 Citations (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, In : Journal of Biological Chemistry. 252, 9, p. 3082-3091 10 p.

Research output: Contribution to journalArticle

30 Citations (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, In : Biochemistry. 16, 7, p. 1504-1512 9 p.

Research output: Contribution to journalArticle

Strongylocentrotus purpuratus
Sea Urchins
DNA Restriction Enzymes
Histones
Plasmids
140 Citations (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, In : Journal of Biological Chemistry. 252, 22, p. 8118-8125 8 p.

Research output: Contribution to journalArticle

Ribosomal RNA
Ribosomal DNA
rRNA Genes
Yeast
Saccharomyces cerevisiae
43 Citations (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, In : Journal of Biological Chemistry. 252, 22, p. 8126-8135 10 p.

Research output: Contribution to journalArticle

Intergenic DNA
Ribosomal RNA
rRNA Genes
Yeast
Saccharomyces cerevisiae
24 Citations (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, In : FEBS Letters. 77, 2, p. 255-260 6 p.

Research output: Contribution to journalArticle

1976
77 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

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, In : Archivos de Biologia y Medicina Experimentales. 10, 1-2 3, p. 65-72 8 p.

Research output: Contribution to journalArticle

Fibroins
fibroins
Bombyx
Bombyx mori
Transfer RNA
7 Citations (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, In : Obstetrics and Gynecology. 47, 2, p. 213-217 5 p.

Research output: Contribution to journalArticle

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

In vitro degradation of ribosomes

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

Research output: Contribution to journalArticle

58 Citations (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, In : Proceedings of the National Academy of Sciences of the United States of America. 73, 4, p. 1024-1028 5 p.

Research output: Contribution to journalArticle

35 Citations (Scopus)

Phosphorylation of yeast RNA polymerases

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

Research output: Contribution to journalArticle

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

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

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

Research output: Contribution to journalArticle

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

Studies on fish liver protein synthesis. II. Factors influencing the aminoacylation of shark liver transfer ribonucleic acid

Araya, A. & Krauskopf, M., 1976, In : Acta Physiologica Latino-Americana. 26, 2, p. 97-105 9 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)

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

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

Research output: Contribution to journalArticle

RNA Polymerase I
Nuclear RNA
Density Gradient Centrifugation
Centrifugation
DNA-Directed RNA Polymerases
29 Citations (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 Jan 1976, In : Cell. 9, 1, p. 163-169 7 p.

Research output: Contribution to journalArticle

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

Vas deferens desensitization by noradrenaline and other drugs

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

Research output: Contribution to journalArticle

Vas Deferens
Reserpine
Norepinephrine
Carbachol
Acetylcholine
42 Citations (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, In : Journal of Biological Chemistry. 251, 5, p. 1464-1470 7 p.

Research output: Contribution to journalArticle

37 Citations (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 Aug 1976, In : Biochemical and Biophysical Research Communications. 71, 4, p. 1319-1325 7 p.

Research output: Contribution to journalArticle

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

Yeast RNA polymerase I: A eukaryotic zinc metalloenzyme

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

Research output: Contribution to journalArticle

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

Adnexal complications in women under treatment with progestogen implants

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

Research output: Contribution to journalArticle

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

A seven cell human egg recovered from the oviduct

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

Research output: Contribution to journalArticle

Oviducts
Ovum
Blastomeres
Eggs
Tolonium Chloride
6 Citations (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, In : British Medical Journal. 2, 5970, p. 527-529 3 p.

Research output: Contribution to journalArticle

Ovulation
Gonadotropin-Releasing Hormone
Estrogens
Ethinyl Estradiol
Chorionic Gonadotropin
26 Citations (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, In : Contraception. 12, 6, p. 615-627 13 p.

Research output: Contribution to journalArticle

Norgestrel
Megestrol Acetate
Norethindrone
Contraceptive Agents
Pregnancy

Egg transport in the fallopian tube

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

Research output: Contribution to journalArticle

Fallopian Tubes
Ovum
Eggs
Oviducts
Progestins
25 Citations (Scopus)

Egg transport in the Fallopian tube

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

Research output: Contribution to journalReview 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

Translated title of the contribution: Synthetic hypothalamic gonadotropin-releasing hormone (LH-RH) and ovulation: a possibility of "programmed" ovulation to regulate fertility in women (author's transl)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, In : Revista Medica de Chile. 103, 11, p. 775-779 5 p.

Research output: Contribution to journalArticle

25 Citations (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, In : Biochemical and Biophysical Research Communications. 64, 4, p. 1152-1159 8 p.

Research output: Contribution to journalArticle

Pyridoxal Phosphate
DNA-Directed RNA Polymerases
Escherichia coli
Lysine
Rate constants
57 Citations (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, In : Biochemistry. 14, 22, p. 4907-4911 5 p.

Research output: Contribution to journalArticle

RNA Polymerase I
Pyridoxal Phosphate
RNA Polymerase II
Liver
Yeast
19 Citations (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, In : Analytical Biochemistry. 65, 1-2, p. 321-330 10 p.

Research output: Contribution to journalArticle

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

Regulatory effects of purine ribonucleotides on Escherichia coli adenylosuccinate synthase

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

Research output: Contribution to journalArticle

Adenylosuccinate Synthase
Ribonucleotides
Guanosine Triphosphate
Escherichia coli
Electron energy levels
8 Citations (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 Dec 1975, In : Biochemical and Biophysical Research Communications. 67, 3, p. 924-934 11 p.

Research output: Contribution to journalArticle

Fibroins
Bombyx
Silk
Transfer RNA
Methionine
7 Citations (Scopus)

Study of blood coagulation in women treated with megestrol acetate implants

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

Research output: Contribution to journalArticle

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, In : Federation Proceedings. 34, 3

Research output: Contribution to journalArticle

1974
15 Citations (Scopus)

Functional organization of the mammalian genome.

Bonner, J., Garrard, W. T., Gottesfeld, J. & Holmes, D. S., 1 Jan 1974, In : Cold Spring Harbor Symposia on Quantitative Biology. 38, p. 303-310 8 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Heterologous mischarging as a means of tRNA fractionation. I. Behaviour of E.coli phenylalanyl-tRNA1 Val on BD-cellulose

Rosenmann, E. & Krauskopf, M., 1 Aug 1974, In : Nucleic Acids Research. 1, 8, p. 935-944 10 p.

Research output: Contribution to journalArticle

Cellulose
Fractionation
Transfer RNA
Purification
Escherichia coli