Description

The RefSeq mRNAs gene track for the 20 Sep 2018 Drosophila guanche/GCF_900245975.1_DGUA_6 genome assembly displays translated blat alignments of vertebrate and invertebrate mRNA in GenBank.

Data Access

Download GCF_900245975.1_DGUA_6.xenoRefGene.gtf.gz GTF file.

Track statistics summary

Total genome size: 140,631,205
Gene count: 11,100
Bases in genes: 58,463,748
Percent genome coverage: % 41.572

Methods

The mRNAs were aligned against the Drosophila guanche/GCF_900245975.1_DGUA_6 genome using translated blat. When a single mRNA aligned in multiple places, the alignment having the highest base identity was found. Only those alignments having a base identity level within 1% of the best and at least 25% base identity with the genomic sequence were kept.

Specifically, the translated blat command is:

blat -noHead -q=rnax -t=dnax -mask=lower target.fa query.fa target.query.psl

where target.fa is one of the chromosome sequence of the genome assembly,
and the query.fa is the mRNAs from RefSeq
The resulting PSL outputs are filtered:
pslCDnaFilter -minId=0.35 -minCover=0.25  -globalNearBest=0.0100 -minQSize=20 
  -ignoreIntrons -repsAsMatch -ignoreNs -bestOverlap 
    all.results.psl GCF_900245975.1_DGUA_6.xenoRefGene.psl
The filtered GCF_900245975.1_DGUA_6.xenoRefGene.psl is converted to genePred data to display for this track.

Credits

The mRNA track was produced at UCSC from mRNA sequence data submitted to the international public sequence databases by scientists worldwide.

References

Benson DA, Cavanaugh M, Clark K, Karsch-Mizrachi I, Lipman DJ, Ostell J, Sayers EW. GenBank. Nucleic Acids Res. 2013 Jan;41(Database issue):D36-42. PMID: 23193287; PMC: PMC3531190

Benson DA, Karsch-Mizrachi I, Lipman DJ, Ostell J, Wheeler DL. GenBank: update. Nucleic Acids Res. 2004 Jan 1;32(Database issue):D23-6. PMID: 14681350; PMC: PMC308779

Kent WJ. BLAT - the BLAST-like alignment tool. Genome Res. 2002 Apr;12(4):656-64. PMID: 11932250; PMC: PMC187518