Example of Proper Usage:

'Decapentaplegic' → 'NCBI Locus ID' → 'Dmel_CG9885', is correct. citation: https://www.ncbi.nlm.nih.gov/gene?Db=gene&Cmd=DetailsSearch&Term=33432. Note that NCBI Locus ID will sometimes be referred to as the Locus Tag.

Example of Improper Usage:

'Decapentaplegic' → 'NCBI Locus ID' → '33432' is incorrect as it is the Gene ID.