IMGT Repertoire (IG and TR)

Locus description: Naked mole-rat (Heterocephalus glaber) TRG

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Naked mole-rat (Heterocephalus glaber) TRG locus on chromosome 1

The Naked mole-rat (Heterocephalus glaber) TRG locus spans 333 kilobases (kb), from 10 kb upstream the most 5' gene in the locus, TRGV1-1 (F), to 10 kb upstream of the most 3' gene in the locus, TRGC5 (F). The Locus representation encompasses 400 kb including the 5' borne AMPH and the 3' borne STARD3NL.
The Naked mole-rat (Heterocephalus glaber) TRG locus consists of 31 genes : 15 TRGV genes belonging to 8 subgroups, 11 TRGJ genes belonging to 5 sets and 5 TRGC genes.
The TRGV genes span 187 kilobases (kb), the TRGJ genes span 84 kilobases (kb) and the TRGC genes span 66 kilobases (kb).

Clusters

The TRGV, TRGJ and TRGC genes are localized in 5 V-J-C-CLUSTER:
- the first V-J-C-CLUSTER in 5', includes 6 TRGV genes (1 gene is functional, 1 gene is ORF, 4 genes are pseudogenes), 2 TRGJ genes (1 gene is functional, 1 gene is ORF) and 1 TRGC gene (pseudogene).
- the second V-J-C-CLUSTER, includes 3 TRGV genes (1 gene is ORF, 2 genes are pseudogenes), 1 TRGJ gene (pseudogene) and 1 TRGC gene (functional).
- the third V-J-C-CLUSTER, includes 2 TRGV genes (pseudogenes), 3 TRGJ genes (2 genes are ORF, 1 gene is pseudogene) and 1 TRGC gene (functional).
- the fourth V-J-C-CLUSTER, includes 1 TRGV gene (pseudogene), 2 TRGJ genes (ORF) and 1 TRGC gene (pseudogene).
- the fifth V-J-C-CLUSTER, includes 3 TRGV genes (1 gene is ORF, 2 genes are pseudogenes), 3 TRGJ genes (1 gene is ORF, 2 genes are pseudogenes) and 1 TRGC gene (functional).

Bornes of the naked mole-rat (Heterocephalus glaber) TRG locus

AMPH (5' borne) has been identified 81 kb upstream of TRGV1 (F), the most 5' gene in the locus.
STARD3NL (3' borne) has been identified 5 kb downstream of TRGC5 (F), the most 3' gene in the locus.

More information:
Gene table: Naked mole-rat (Heterocephalus glaber) TRGV
Gene table: Naked mole-rat (Heterocephalus glaber) TRGJ
Gene table: Naked mole-rat (Heterocephalus glaber) TRGC
Potential germline repertoire: Naked mole-rat (Heterocephalus glaber) TRGV and TRGJ genes

See also:
Genomic orientation (IMGT Index)
Taxonomy: Eutheria

Created:: 04/10/2021
Last updated:: Monday, 19-Feb-2024 21:00:14 CET
Author:: Ariadni Papadaki, Maria Georga, Alexander Albani