Description

The RefSeq mRNAs gene track for the 18 Jan 2023 Malaclemys terrapin pileata/GCA_027887205.1_rMalTer1.hap2 genome assembly displays translated blat alignments of vertebrate and invertebrate mRNA in GenBank.

Data Access

Download GCA_027887205.1_rMalTer1.hap2.xenoRefGene.gtf.gz GTF file.

Track statistics summary

Total genome size: 2,212,837,039
Gene count: 15,081
Bases in genes: 826,335,668
Percent genome coverage: % 37.343

Methods

The mRNAs were aligned against the Malaclemys terrapin pileata/GCA_027887205.1_rMalTer1.hap2 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 GCA_027887205.1_rMalTer1.hap2.xenoRefGene.psl
The filtered GCA_027887205.1_rMalTer1.hap2.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