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What is the definition of LOC# identifier?

Hi,

Could someone give me the definition of LOC# identifiers and where can I found it? I cannot find any place with the criteria to give to a gene an identifier such as LOC#.

Thanks!

gene-symbol annotation

I may be wrong, but when I do it I just use the first basepair position within the contig/chromosome of the gene.

1 answer

From the NCBI book:

Symbols beginning with LOC. When a published symbol is not available, and orthologs have not yet been determined, Gene will provide a symbol that is constructed as 'LOC' + the GeneID. This is not retained when a replacement symbol has been identified, although queries by the LOC term are still supported. In other words, a record with the symbol LOC12345 is equivalent to GeneID = 12345. So if the symbol changes, the record can still be retrieved on the web using LOC12345 as a query, or from any file using GeneID = 12345.

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