The yeast Yarrowia lipolytica has two, functional, signal recognition particle 7S RNA genes. 1990

F He, and D Yaver, and J M Beckerich, and D Ogrydziak, and C Gaillardin
Laboratoire de Genetique, Centre de Biotechnologie Agro-Industrielle, INAPGt, Thiverval Grignon, France.

Cells containing a deletion of either the SCR1 or SCR2 genes, which code for the 7SL RNA component of the signal recognition particle (SRP) homologue, were found to be viable. Two independent approaches demonstrated that cells containing deletions of both genes were inviable. Therefore, Yarrowia lipolytica contains two (and only two) functional 7SL RNA genes.

UI MeSH Term Description Entries
D002872 Chromosome Deletion Actual loss of portion of a chromosome. Monosomy, Partial,Partial Monosomy,Deletion, Chromosome,Deletions, Chromosome,Monosomies, Partial,Partial Monosomies
D004718 Saccharomycetales An order of fungi in the phylum Ascomycota that multiply by budding. They include the telomorphic ascomycetous yeasts which are found in a very wide range of habitats. Budding Yeast,Endomycetales,Endomycopsis,Yeast, Budding,Budding Yeasts,Endomycetale,Endomycopses,Saccharomycetale,Yeasts, Budding
D005800 Genes, Fungal The functional hereditary units of FUNGI. Fungal Genes,Fungal Gene,Gene, Fungal
D012261 Ribonucleoproteins Complexes of RNA-binding proteins with ribonucleic acids (RNA). Ribonucleoprotein
D012331 RNA, Fungal Ribonucleic acid in fungi having regulatory and catalytic roles as well as involvement in protein synthesis. Fungal RNA
D014170 Transformation, Genetic Change brought about to an organisms genetic composition by unidirectional transfer (TRANSFECTION; TRANSDUCTION, GENETIC; CONJUGATION, GENETIC, etc.) and incorporation of foreign DNA into prokaryotic or eukaryotic cells by recombination of part or all of that DNA into the cell's genome. Genetic Transformation,Genetic Transformations,Transformations, Genetic
D015139 Blotting, Southern A method (first developed by E.M. Southern) for detection of DNA that has been electrophoretically separated and immobilized by blotting on nitrocellulose or other type of paper or nylon membrane followed by hybridization with labeled NUCLEIC ACID PROBES. Southern Blotting,Blot, Southern,Southern Blot
D015183 Restriction Mapping Use of restriction endonucleases to analyze and generate a physical map of genomes, genes, or other segments of DNA. Endonuclease Mapping, Restriction,Enzyme Mapping, Restriction,Site Mapping, Restriction,Analysis, Restriction Enzyme,Enzyme Analysis, Restriction,Restriction Enzyme Analysis,Analyses, Restriction Enzyme,Endonuclease Mappings, Restriction,Enzyme Analyses, Restriction,Enzyme Mappings, Restriction,Mapping, Restriction,Mapping, Restriction Endonuclease,Mapping, Restriction Enzyme,Mapping, Restriction Site,Mappings, Restriction,Mappings, Restriction Endonuclease,Mappings, Restriction Enzyme,Mappings, Restriction Site,Restriction Endonuclease Mapping,Restriction Endonuclease Mappings,Restriction Enzyme Analyses,Restriction Enzyme Mapping,Restriction Enzyme Mappings,Restriction Mappings,Restriction Site Mapping,Restriction Site Mappings,Site Mappings, Restriction
D018271 Signal Recognition Particle A cytosolic ribonucleoprotein complex that acts to induce elongation arrest of nascent presecretory and membrane proteins until the ribosome becomes associated with the rough endoplasmic reticulum. It consists of a 7S RNA and at least six polypeptide subunits (relative molecular masses 9, 14, 19, 54, 68, and 72K). SRP (Signal Recognition Particle),Particle, Signal Recognition,Recognition Particle, Signal

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