genomes: 34884

One row per species (2,634 genomes) — start here to look up an organism. Each row carries its minor-intron verdict (u12_status), high-confidence and total U12-type intron counts, snRNA status, and proteome completeness (BUSCO); click the taxonomy_id or species name to open its full genome page. Featured views: U12-type loss landscape U12-type % vs genome size U12-type intron count vs proteome BUSCO Minor vs total introns

Data license: ODbL · Data source: Larue & Roy, 2023

This data as json

taxonomy_id	species	common_name	group	phylum	order	family	u12_status	n_minor_introns	percent_minor_introns	u12_density_percentile	n_u12_all	n_major_introns	motif_category	z_excess	hc_u12_cds	hc_u12_exon	snrna_status	minor_snrnas	n_minor_snrna	u11_E	u12_E	u4atac_E	u6atac_E	total_genes	total_introns_scored	genome_size_bp	gc_content	coding_gc_content	n_contigs	assembly_n50	assembly_l50	busco_score	accession	genome_version	source	assembly_url	ncbi_taxonomy_url	wikipedia_url	common_name_level	taxonomy	genome_path	annotation_path
34884	Callorhinus ursinus	northern fur seal	vertebrates	Chordata	Carnivora	Otariidae	U12_POSITIVE	767	0.39%	96.58	812	207,378	DETECTED	377.4020473273754	748	19	corroborated	U11, U12, U4atac, U6atac	4	9.3e-27	6.2e-37	2.9e-21	3.2e-36	34,855	208,190	2,706,868,872	41.483	53.302	14,230	31,506,801	23	99.6	GCF_003265705.1	ASM326570v1	refseq	https://www.ncbi.nlm.nih.gov/datasets/genome/GCF_003265705.1/	https://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?id=34884	https://en.wikipedia.org/wiki/Northern_fur_seal	species	callorhinus ursinus;callorhinus;otariidae;caniformia;carnivora;laurasiatheria;boreoeutheria;eutheria;theria;mammalia;amniota;tetrapoda;dipnotetrapodomorpha;sarcopterygii;euteleostomi;teleostomi;gnathostomata;vertebrata;craniata;chordata;deuterostomia;bilateria;eumetazoa;metazoa;opisthokonta;eukaryota;cellular organisms	vertebrates/refseq/callorhinus_ursinus-ASM326570v1/callorhinus_ursinus.GCF_003265705.1_ASM326570v1_genomic.fna.gz	vertebrates/refseq/callorhinus_ursinus-ASM326570v1/callorhinus_ursinus.GCF_003265705.1_ASM326570v1_genomic.gff.gz

Links from other tables

25,109 rows from taxonomy_id in transcripts
208,190 rows from taxonomy_id in introns
812 rows from taxonomy_id in minor_introns

Filter introns: All CDS only Exon only U12-type set: High-confidence Motif-positive Introns are called on the longest isoform per gene.

Splice-site logos for Callorhinus ursinus

Rendered in the browser from motif_pwm counts via the Schneider-Stephens / WebLogo 3 information formula. The U12-type set control in the filter bar above switches the U12-type population — in these logos and every distribution chart below — between high-confidence calls (adjusted score ≥ 90) and motif-positive introns (p_motif ≥ 0.5: every intron whose splice-signal motif is U12-like, even where the genome made few or no calls). U2-type is the fixed genome-wide background.

Y-axis:

U12-type introns

U2-type introns

Intron distributions for Callorhinus ursinus

Pre-aggregated from the full intron set (intron_stats); rendered client-side with Vega-Lite. Bars are grouped by set (U12-type = green, U2-type = gray).

Phase

Intron termini

Intron location

CDSexon

Score (intronIC, 0-100)

Intron length

Branch-point offset (nt to 3′SS)

Relative position in transcript (%)

Motif-score model for Callorhinus ursinus

intronIC's per-species tail model: the U2-type (major) background motif-score distribution (gray, log-scaled) in p_motif space, its extrapolated exponential tail (dashed — how far U2-type scores are expected to reach by chance), and the U12-type calls (green, p_motif ≥ 0.9). Calls sitting far to the right of the U2-type tail are the evidence for a genuine minor-spliceosome population.

5′SS vs BPS motif scores for Callorhinus ursinus

Every intron's raw 5′ splice-site vs branch-point motif score (log-odds, robust-standardized per genome). The U2-type (major) background is a log-scaled density (far too many introns to plot individually); U12-type calls are points, colored by confidence like intronIC (green > 90, amber / red = lower tiers set from the per-genome score spread). Minor introns separate into the high-score corner.