We have isolated the gene from Saccharomyces cerevisiae encoding an alpha-mannosidase of unique specificity which catalyzes the removal of one mannose residue from Man9GlcNAc to produce a single isomer of Man8GlcNAc (Jelinek-Kelly, S., and Herscovics, A. (1988) J. Biol. Chem. 263, 14757-14763). Amino acid sequence information was obtained and corresponding degenerate oligonucleotide primers were synthesized for polymerase chain reactions on yeast genomic DNA. The labeled polymerase chain reaction products were used to screen a S. cerevisiae genomic library in YEp24, and positive clones of different lengths with similar restriction maps were isolated. A 4.6-kilobase fragment which hybridized with the probes was sequenced. It contained a 1650-base pair open reading frame encoding peptide sequences corresponding to the amino acid sequences of the purified alpha-mannosidase. The gene, designated MNS1, encodes a 549-amino acid polypeptide of calculated molecular size 63,017 Da produced by an mRNA species of approximately 1.7 kilobases. The protein possesses a putative noncleavable signal sequence near its N-terminal region which probably acts as a transmembrane domain. It has three potential N-glycosylation sites and a calcium-binding consensus sequence. Its amino acid sequence is homologous to the recently isolated cDNA from rabbit liver alpha-1,2 mannosidase which can transform Man9GlcNAc to Man5GlcNAc (Moremen, K. W., Schutzbach, J. S., Forsee, W. T., Neame, P., Bishoff, J., Lodish, H. F., and Robbins, P. W. (1990) Glycoconjugate J. 7, 401). Overexpression of the MNS1 gene caused an 8-10-fold increase in specific alpha-mannosidase activity. Disruption of the MNS1 gene resulted in undetectable specific alpha-mannosidase activity but no apparent effect on growth. These results demonstrate that MNS1 is the structural gene for the specific alpha-mannosidase and that its activity is not essential for viability.
Increase the total number of rows showing on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table.
Evidence ID | Analyze ID | Gene/Complex | Systematic Name/Complex Accession | Qualifier | Gene Ontology Term ID | Gene Ontology Term | Aspect | Annotation Extension | Evidence | Method | Source | Assigned On | Reference |
---|
Increase the total number of rows showing on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details.
Evidence ID | Analyze ID | Gene | Gene Systematic Name | Phenotype | Experiment Type | Experiment Type Category | Mutant Information | Strain Background | Chemical | Details | Reference |
---|
Increase the total number of rows showing on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table.
Evidence ID | Analyze ID | Gene | Gene Systematic Name | Disease Ontology Term | Disease Ontology Term ID | Qualifier | Evidence | Method | Source | Assigned On | Reference |
---|
Increase the total number of rows displayed on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; to filter the table by a specific experiment type, type a keyword into the Filter box (for example, “microarray”); download this table as a .txt file using the Download button or click Analyze to further view and analyze the list of target genes using GO Term Finder, GO Slim Mapper, SPELL, or YeastMine.
Evidence ID | Analyze ID | Regulator | Regulator Systematic Name | Target | Target Systematic Name | Direction | Regulation of | Happens During | Regulator Type | Direction | Regulation Of | Happens During | Method | Evidence | Strain Background | Reference |
---|
Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through its pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table.
Site | Modification | Modifier | Source | Reference |
---|
Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details about experiment type and any other genes involved in the interaction.
Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Allele | Assay | Annotation | Action | Phenotype | SGA score | P-value | Source | Reference | Note |
---|
Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; click on the small "i" buttons located within a cell for an annotation to view further details about experiment type and any other genes involved in the interaction.
Evidence ID | Analyze ID | Interactor | Interactor Systematic Name | Interactor | Interactor Systematic Name | Assay | Annotation | Action | Modification | Source | Reference | Note |
---|
Increase the total number of rows showing on this page by using the pull-down located below the table, or use the page scroll at the table's top right to browse through its pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table.
Complement ID | Locus ID | Gene | Species | Gene ID | Strain background | Direction | Details | Source | Reference |
---|
Increase the total number of rows displayed on this page using the pull-down located below the table, or use the page scroll at the table's top right to browse through the table's pages; use the arrows to the right of a column header to sort by that column; filter the table using the "Filter" box at the top of the table; download this table as a .txt file using the Download button;
Evidence ID | Analyze ID | Dataset | Description | Keywords | Number of Conditions | Reference |
---|