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51 Capecchi, Mario R.In vivo and in vitro tissue-specific expression of green fluorescent protein using the cre-lox system in mouse embryonic stem cells.Embryonic stem cells (ES) are pluripotent and may therefore serve as a source for the generation of specific cell types required for future therapies based on cell replacement. The isolation of defined cell populations from a certain lineage or tissue is a prerequisite for the analysis of the potent...Animals; Cell Differentiation; Cells, Cultured; Gene Transfer Techniques; Mice, Transgenic2005-10-23
52 Capecchi, Mario R.Initiation of E. coli proteins.Recent experiments and theoretical arguments suggest that formylmethionyl sRNA is employed as an initiator of protein synthesis. Studies also indicated that other phage proteins synthesized in the in vitro system were initiated with formylmethionine. These observations provided a basis for believin...Alanine; Chromatography, Paper; Dipeptides1966-06
53 Mansour, Suzanne L.; Thomas, Kirk R.; Capecchi, Mario R.Introduction of a lacZ reporter gene into the mouse int-2 locus by homologous recombination.We demonstrate that the frequency of gene targeting is unaffected by the length of nonhomologous DNA transferred to a target chromosomal sequence. A result of this finding is that a much wider spectrum of designed genomic alterations is now feasible. As a first application, we inserted a 5.4-kilobas...Blotting, Southern; Cell Differentiation; Fluorescent Antibody Technique; Restriction Mapping1990-10
54 Thomas, Kirk R.; Capecchi, Mario R.Introduction of homologous DNA sequences into mammalian cells induces mutations in the cognate gene.Injection of homologous DNA sequences into nuclei of cultured mammalian cells induces mutations in the cognate chromosomal gene. It appears that these mutations result from incorrect repair of a heteroduplex formed between the introduced and the chromosomal sequence. This phenomenon is termed 'heter...Animals; Cell Line; Drug Resistance, Microbial; Fibroblasts; Mice; Models, Genetic; Neomycin; Plasmids1986-11-06
55 Capecchi, Mario R.Introduction: the molecular genetic analysis of mouse developmentThis paper is an introduction of seven different papers presented in "Seminars in developmental biology" on Molecular Genetic Analysis of Mouse Development . The first paper, by Janet Rossant, describes very early mouse development. The second paper, by Frank Conlon and Rosa Beddington provide an i...Embryo Culture Techniques; Genes1995-04
56 Capecchi, Mario R.Isolation and characterization of Caenorhabditis elegans DNA sequences homologous to the v-abl oncogene.DNA sequences homologous to the v-abl oncogene were isolated from a Caenorhabditis elegans genomic library by their ability to hybridize with a v-src probe. The DNA sequence of 2465 nucleotides of one clone was determined. This region corresponds to the 5' protein kinase domain of v-abl plus approxi...Amino Acid Sequence; Animals; Base Sequence; Gene Expression Regulation; Transcription, Genetic1986-04
57 KSL News clip of Mario Capecchi receiving the National Medal of Science for 1991This 1 minute, 44 seconds news clip from Salt Lake City's KSLTV, Channel 5 shows Mario Capecchi receiving the National Medal of Science for 1991 from President George W. Bush at the June 13, 2002 awards ceremony. The medal was presented for Capecchi's work in genetics and his development of the pro...Transgenic mice; Gene targeting; Capecchi, Mario R.; Science - Awards - United States; Television broadcasting of news1992-06
58 KUTV news featurette on cloning, molecular genetics, and disease aired November 9, 1997This 3 minutes, 1 second video clip from Salt Lake City's KUTV, Channel 2 features a short interview with Mario Capecchi concerning cloning and its use in molecular genetics and the study of human diseases.Gene targeting; Genetic engineering; Molecular genetics; Cancer Research; Capecchi, Mario R.; Science - Moral and ethical aspects; Human chromosome abnormalities - Diagnosis; Television feature stories1997-11-09
59 Capecchi, Mario R.Lack of angiotensin II-facilitated erythropoiesis causes anemia in angiotensin-converting enzyme-deficient miceWhile nephrologists often observe reduced hematocrit associated with inhibitors of angiotensin-converting enzyme (ACE), the basis for this effect is not well understood. We now report that two strains of ACE knockout mice have a normocytic anemia associated with elevated plasma erythropoietin levels...ACE2000-10-31
60 Capecchi, Mario R.Lessons from angiotensin-converting enzyme-deficient mice.Mice which lack ACE have low systolic blood pressure, reduced male fertility and a renal abnormality characterized by medullary hypoplasia and the inability to concentrate urine. The diverse phenotypes caused by inactivation of a single gene emphasize the many functional roles of ACE and the renin-q...Blood Pressure; Cell Line;Fertility; Kidney; Testis1991-11-01
61 Local television news clips for June 14, 1994 featuring Mario CapecchiThis is a compilation of news clips from Salt Lake City's four major commercial television stations (Channels 2, 4, 5, and 13) lasting a total of 2 minutes, 59 seconds. The topic is Capecchi's winning of the General Motors Corporation's Alfred P. Sloan Jr. Prize for Outstanding Basic Science Contrib...Transgenic mice; Gene targeting; Cancer - Research - Awards; Capecchi, Mario R.; Science - Awards - United States; Television broadcasting of news1994-06-14
62 Capecchi, Mario R.Location and function of retroviral and SV40 sequences that enhance biochemical transformation after microinjection of DNA.Biochemical transformation of thymidine-kinase-deficient (TK-) mouse L cells is enhanced 20 to 40 fold when microinjected plasmid DNA contains regions of the genomes of Rous sarcoma virus or simian virus 40 in addition to the complete herpes simplex virus tk gene, irrespective of the orientation and...Animals; Base Sequence; Genes, Viral; Plasmids; Thymidine Kinase1983-07-01
63 Thomas, Kirk R.; Capecchi, Mario R.Location of crossovers during gene targeting with insertion and replacement vectors.Gene targeting was used to introduce nonselectable genetic changes into chromosomal loci in mouse embryo-derived stem cells. The nonselectable markers were linked to a selectable marker in both insertion- and replacement-type vectors, and the transfer of the two elements to the Hprt locus was assaye...Genetic Vectors; Molecular Sequence Data; Restriction Mapping1993-04
64 Thomas, Kirk R.; Capecchi, Mario R.Maintenance of functional equivalence during paralogous Hox gene evolution.Biological diversity is driven mainly by gene duplication followed by mutation and selection. This divergence in either regulatory or protein-coding sequences can result in quite different biological functions for even closely related genes. This concept is exemplified by the mammalian Hox gene comp...Alleles; Animals; Cervical Vertebrae; Embryo; Genetic Complementation Test; Homeodomain Proteins; Homozygote; Mice2000-02-10
65 Capecchi, Mario R.Male fertility is dependent on dipeptidase activity of testis ACE.Testis angiotensin-converting enzyme (ACE) is an isozyme exclusively expressed by developing sperm. This protein has only a single catalytic domain containing the HEXXH consensus-site motif typical of zinc metallopeptidases. The exact role of testis ACE is unknown, but male mice lacking the protein ...Amino Acid Motifs; Blotting, Western; Catalytic Domain; Comparative Study; Isoenzymes; Protein Structure, Tertiary2005-11-11
66 Capecchi, Mario R.Measurement of suppressor transfer RNA activity.Transfer RNA (tRNA) suppression of nonsense mutations in prokaryotic systems has been widely used to study the structure and function of different prokaryotic genes. Through genetic engineering techniques, it is now possible to introduce suppressor (Su+) tRNA molecules into mammalian cells. A quanti...Animals; Cells, Cultured; Eukaryotic Cells; Genes, Viral; Mice; Orthomyxoviridae; Peptide Chain Termination, Translational; Protein Biosynthesis1983-08-26
67 Capecchi, Mario R.Mice with targeted disruptions in the paralogous genes hoxa-3 and hoxd-3 reveal synergistic interactions.The Hox genes encode transcription factors which mediate the formation of the mammalian body plan along the anteroposterior and appendicular axes. Paralogous Hox genes within the separate linkage groups are closely related with respect to DNA sequence and expression, suggesting that they could have ...Animals; Atlas; Homozygote; Mice; Models, Genetic1994-07-28
68 Eichwald, Ernst; Capecchi, Mario R.; Thomas, Kirk R.Mouse model for the delta F508 allele of cystic fibrosisThe most common cause of cystic fibrosis is a mutation that deletes phenylalanine 508 in cystic fibrosis transmembrane conductance regulator (CFTR). The delta F508 protein is misprocessed and degraded rather than traveling to the apical membrane. We used a novel strategy to introduce the delta F508 ...Digestive System; Disease Models, Animal; Electrolytes; Mice, Inbred C57BL1995-10
69 Baehr, Wolfgang; Frederick, Jeanne M.; Church-Kopish, Jill; Howes, KimberlyMutant rhodopsin transgene expression on a null backgroundPURPOSE. To study mechanisms leading to photoreceptor degeneration in mouse models for autosomal dominant retinitis pigmentosa (adRP) based on the rhodopsin P23H mutation. METHODS. Mice of a transgenic line expressing a rhodopsin triple mutant, V20G, P23H, and P27L (GHL), were mated with rhodopsin (...Mutant Rhodopsin; Photoreceptor Degeneration; Autosomal Dominant Retinitis Pigmentosa; Rhodopsin2001-03
70 Capecchi, Mario R.N-formylmethionyl-sRNA as the initiator of protein synthesis.A bizarre fast about Nterminal groups of bacterial proteins. Instead of a random mixture, that the great majority of N-terminal groups were either methionine or alanine. This finding suggested that methionine and alanine constituted start signals for the initiation of polypeptide chains. Alternative...Electrophoresis; Formates; In Vitro; Methionine1966-01-01
71 National Medals of Science and Technology Awards (2001) Ceremony and Banquet, held June 13, 2002This 51 minutes, 5 seconds video is divided into two parts: the first part is a film introducing the award winners and their achievements; the second is the presentation of the actual awards by George W. Bush, President of the United States. Medal winners were: Mario R. Capecchi for his pioneering...Molecular genetics; Gene targeting; Transgenic mice; Gene expression; Genetic engineering; Capecchi, Mario R.; Science - Awards - United States; Awards presentations2002
72 Thomas, Kirk R.; Capecchi, Mario R.Nonreciprocal exchanges of information between DNA duplexes coinjected into mammalian. cell nucleiWe have examined the mechanism of homologous recombination between plasmid molecules coinjected into cultured mammalian cells. Cell lines containing recombinant DNA molecules were obtained by selecting for the reconstruction of a functional Neor gene from two plasmids that bear different amber mutat...Animals; Cells, Cultured; DNA Restriction Enzymes; Kinetics1985-01
73 Gesteland, Raymond F.; Atkins, John F.Origin and destiny of adenovirus proteinsLytic infection of human cells by adenovirus proceeds by a temporal expression of genes. Classically two phases have been defined: an early phase, which includes events occurring before the onset of DNA synthesis (8 hours), and a late phase, including events whose existence depends on the onset of...Protein Biosynthesis; DNA, Viral; Adenoviridae; RNA, Viral; Time Factors1975
74 Gesteland, Raymond F.; Atkins, John F.; Baranov, Pavel V.P-site tRNA is a crucial initiator of ribosomal frameshiftingThe expression of some genes requires a high proportion of ribosomes to shift at a specific site into one of the two alternative frames. This utilized frameshifting provides a unique tool for studying reading frame control. Peptidyl-tRNA slippage has been invoked to explain many cases of programmed ...Translation; Recoding; Kinetic Model; Frameshifting; Ribosome2004
75 Capecchi, Mario R.Paralogous mouse Hox genes, Hoxa9, Hoxb9, and Hoxd9, function together to control development of the mammary gland in response to pregnancy.Although the role of Hox genes in patterning the mammalian body plan has been studied extensively during embryonic and fetal development, relatively little is known concerning Hox gene function in adult animals. Analysis of mice with mutant Hoxa9, Hoxb9, and Hoxd9 genes shows that these paralogous g...Embryonic and Fetal Development; Gene Expression Regulation, Developmental; Genotype; Mice, Knockout1999-01
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