The RefSeq mRNAs gene track for the 20 Apr 2022 Ursus arctos/GCF_023065955.1_UrsArc1.0 genome assembly displays translated blat alignments of vertebrate and invertebrate mRNA in GenBank.
Download GCF_023065955.1_UrsArc1.0.xenoRefGene.gtf.gz GTF file.
Total genome size: 2,474,258,672
Gene count: 18,920
Bases in genes: 957,305,723
Percent genome coverage: % 38.691
The mRNAs were aligned against the Ursus arctos/GCF_023065955.1_UrsArc1.0 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 RefSeqThe 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_023065955.1_UrsArc1.0.xenoRefGene.psl
The filtered GCF_023065955.1_UrsArc1.0.xenoRefGene.psl is converted to
genePred data to display for this track.
The mRNA track was produced at UCSC from mRNA sequence data submitted to the international public sequence databases by scientists worldwide.
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