This help document answers the following questions:
MGI is accessible on the Internet via the World Wide Web (WWW) and relies on online forms to present query options in an easy-to-use format. Help documentation is available on-line (click Help under the MGI logo). Our Mouse Genome Informatics home page is located at http://www.informatics.jax.org. You can contact User Support by e-mail or by phone at (207) 288-6445.
A general procedure to build a query includes the following steps (select form, enter value(s), restrict/expand scope, execute).
See also: All Search Tools for a list of query forms arranged by function.
The query returns any marker on Chr. 6 whose symbol, name or synonym begins with hox.
The query results are usually a list of records in an abbreviated format. The display contains links to related information in the MGI database.
A good search strategy ensures that your search executes quickly and retrieves the information you want. Here are some general guidelines:
When you use multiple fields, the interpretation is "Search for all records that contain attribute A AND attribute B AND ...."
Author Nadeau JHand specify
Year 2010-to further focus your search.
Many query results now allow you to modify your search and requery. Use the Click to modify search button to view your previous search parameters and make refinements.
Alternately, many Query Forms allow you to filter your results. So in the previous search, you could filter JH Nadeau's publications to just those published in Mamm Genome.
Yes. The following query forms have fields that provide full-text search options:
A query form consists of a logical arrangement of data entry fields, selection lists, and various options and operators used to modify the search criteria or to format query results. Field names are linked to user documentation describing the fields; click any field name to go to the relevant part of the documentation.
The subsections below describe form elements.
A selection list consists of a pre-defined list of values from which you may select one or more items. An example is the list of Chromosomes on some query forms. To limit your search to specific chromosomes, you make your selections from the list. How you make the selection depends upon the browser you use.
Some selection lists allow you to specify more than one value. For example, you may wish to search for multiple chromosomes. In this case, you would select several options from the selection list. Again, the exact mechanism for doing this depends on your implementation.
A data entry field requires you to type a value in the field. There are two types of data entry fields, numeric and text.
Numeric fields require that you enter a number, possibly in a specified format. For example, the Year field in the Reference query form requires the year to be entered in the format: 20xx .
MGI supports the asterisk a wild card symbol before or after the text you enter in the search field.
The following are examples of using the wild card to search for information on a marker by its symbol.
|Abc*||all of the ATP-binding cassette genes|
|Abc[ab]*||ATP-binding cassette genes, sub-families A and B|
|*rik||all RIKEN cDNA genes|
The query forms offer several options for sorting query returns. For example, in the results of a Genes and Markers Query Form search, you can specify that the returned list of markers be sorted by Genome Coordinates, Feature Type or Symbol. Use the up/down triangles in a column header to sort by that column.
Many query forms provide the option to export your results as a text file or in a spreadsheet format. Several also allow you to get additional information on genes by exporting your results to the MGI Batch Query or MouseMine.