gene_segments
Identifier
Section titled “Identifier”Description
Section titled “Description”Immunoglobulin and T-cell receptor gene-segment annotation.
One row per Ensembl GFF3 gene-segment feature.
These are not conventional RNA transcript records, even though Ensembl supplies their identifiers through a GFF3 transcript_id attribute.
Join to genes on gene_id; do not join these rows to transcripts.
Related tables: ensembl.genes (join on gene_id).
Partitions
Section titled “Partitions”genbank_assembly_accession'GCA_000001405.29''GCA_000001635.9''GCA_000002035.4''GCA_000002285.4''GCA_000003025.6''GCA_000003625.1''GCA_000004195.4''GCA_001704415.1''GCA_001858045.3''GCA_002263795.4''GCA_002863925.1''GCA_003339765.3''GCA_003668045.2''GCA_008728515.1''GCA_011100615.1''GCA_016772045.2''GCA_036323735.1''GCA_905237065.2'
Schema
Section titled “Schema”| Column | Type | Description |
|---|---|---|
sources |
STRUCT(url TEXT, filename TEXT, last_modified_at TIMESTAMPTZ, sha256 TEXT)[] |
Provenance for the GFF3 feature records. |
release |
TEXT |
Ensembl release number the annotation was drawn from. |
genbank_assembly_accession |
TEXT |
Partition column. GenBank assembly accession (partition column). |
gene_id |
TEXT |
Ensembl gene ID of the parent gene. |
segment_id |
TEXT |
Ensembl gene-segment identifier, parsed from the GFF3 transcript_id attribute. |
segment_version |
INT |
Version suffix of the gene-segment identifier. May be null. |
segment_name |
TEXT |
GFF3 Name for the gene segment. |
sequence_id |
TEXT |
GFF3 sequence ID the gene segment is located on. |
start_position |
INT |
1-based start coordinate of the gene segment. |
end_position |
INT |
1-based end coordinate of the gene segment. |
is_forward_strand |
BOOLEAN |
Whether the gene segment is on the forward strand. |
segment_source |
TEXT |
Annotation source in GFF3 column 2 (e.g. ensembl, havana, ensembl_havana). |
segment_type |
TEXT |
Raw GFF3 gene-segment feature type — C_gene_segment, D_gene_segment, J_gene_segment, V_gene_segment, or gene_segment. |
biotype |
TEXT |
Ensembl gene-segment biotype (e.g. TR_V_gene). |
segment_support_level |
INT |
Transcript Support Level supplied for the gene segment (1 = best, 5 = worst evidence). May be null. |
is_gencode_basic |
BOOLEAN |
Gene segment has the GFF3 gencode_basic tag. |
is_gencode_primary |
BOOLEAN |
Gene segment has the GFF3 gencode_primary tag. |
is_ensembl_canonical |
BOOLEAN |
Gene segment has the GFF3 Ensembl_canonical tag. |