The Drosophila melanogaster Release 3 genome sequence was provided by the Berkeley Drosophila Genome Project (BDGP) and the Release 3.2 annotations (March 2004) were provided by FlyBase.

### Sample position queries

A genome position can be specified by the accession number of an mRNA or EST, a chromosomal range, an Ensembl transcript ID, or keywords from the Genbank description of an mRNA. The following list provides examples of valid position queries for the Drosophila genome. Note that some position queries (e.g. "huntington") may return matches to the mRNA records of other species. In these cases, the mRNAs are mapped to their homologs in Drosophila. See the User's Guide for more information.

Request: | Genome Browser Response:
chr2L |  | Displays all of chromosome 2L
chrYh:1-200000 |  | Displays first two hundred thousand bases of chromosome Yh (h = heterochromatin random reads)
FBgn0058440 |  | Displays region containing the gene with FlyBase ID FBgn0058440
CG6588 |  | Displays region containing the gene with Berkeley Drosophila Genome Project gene ID CG6588
AY122244 |  | Displays region containing D. melanogaster mRNA with GenBank accession number AY122244
BQ103726 |  | Displays region containing D. melanogaster EST with GenBank accession BQ103726
p53 |  | Lists mRNAs related to the p53 tumor suppressor
PDZ |  | Lists mRNAs for PDZ domain proteins
zinc finger |  | Lists many zinc finger mRNAs
huntington |  | Lists mRNAs associated with Huntington's disease
zahler |  | Lists mRNAs deposited by scientist named Zahler
Celniker,S. |  | Lists mRNAs deposited by co-author S. Celniker
Use this last format for author queries. Although GenBank requires the search format Celniker S, internally it uses the format Celniker,S..

### Assembly details

The 116.8 Mb euchromatic sequence of this assembly - which is virtually gap-free and of high accuracy - contains 6 euchromatic chromosome arms represented by 13 scaffolds with a total of 37 sequence gaps. The sequence quality of this release has an estimated error rate of less than one in 100,000 base pairs in the unique portion of the sequence, and less than one in 10,000 base pairs in the repetitive portion.

For more information, see a list of online refereed articles from Genome Biology.

Downloads of the dm1 data and annotations may be obtained from the UCSC Genome Browser FTP server or Downloads page. The dm1 annotation tracks were generated by UCSC and collaborators worldwide. Thanks to the BDGP and Flybase for providing the sequence, assembly, gene annotations and analysis of this genome. See the Credits page for a detailed list of the organizations and individuals who contributed to the success of this release.