• 40
    Haplo
    Score
  • 0
    Triplo
    Score

Gene Facts External Data Attribution

HGNC Symbol
EXO5 (HGNC:26115) HGNC Entrez Ensembl OMIM UCSC Uniprot GeneReviews LOVD LSDB ClinVar
HGNC Name
exonuclease 5
Gene type
protein-coding gene
Locus type
gene with protein product
Previous symbols
C1orf176, DEM1
Alias symbols
FLJ21144
%HI
64.2(Read more about the DECIPHER Haploinsufficiency Index)
pLI
0(Read more about gnomAD pLI score)
LOEUF
1.05(Read more about gnomAD LOEUF score)
Cytoband
1p34.2
Genomic Coordinates
GRCh37/hg19: chr1:40974439-40981710 NCBI Ensembl UCSC
GRCh38/hg38: chr1:40508767-40516038 NCBI Ensembl UCSC
MANE Select Transcript
NM_001346953.2 ENST00000415550.6 (Read more about MANE Select)
Function
Single-stranded DNA (ssDNA) bidirectional exonuclease involved in DNA repair. Probably involved in DNA repair following ultraviolet (UV) irradiation and interstrand cross-links (ICLs) damage. Has both 5'-3' and 3'-5' exonuclease activities with a strong preference for 5'-ends. Acts as a sliding exonuclease that loads at ssDNA ends and then slides along the ssDNA prior to cutting; however the sliding and the 3'-5' exonuclease activities are abolished upon binding to the replication protein A (RPA... (Source: Uniprot)

Dosage Sensitivity Summary (Gene)

Dosage ID:
ISCA-19916
ClinGen Curation ID:
CCID:007094
Curation Status:
Complete
Issue Type:
Dosage Curation - Gene
Haploinsufficiency:
Dosage Sensitivity Unlikely (40)
Triplosensitivity:
No Evidence for Triplosensitivity (0)
Last Evaluated:
02/02/2021

Haploinsufficiency (HI) Score Details

HI Score:
40
HI Evidence Strength:
Dosage Sensitivity Unlikely (Disclaimer)
HI Evidence:
  • PUBMED: 32487729
    Rausell et al. (2020) suggested that this gene is dosage sensitivity unlikely because it had at least one homozygous LoF variant present in >1% of the gnomAD population. An example of a homozygous LoF variant in this gene in gnomAD includes p.Val265GlufsTer5 (218 homozygous individuals).
  • PUBMED: 25807282
    Sulem et al. (2015) identified 34 individuals in an Icelandic population with a homozygous LoF variant in this gene. This population was participating in a variety of disease projects and the researchers pulled this population to investigate how often homozygous LoF variants were found in this population.
  • PUBMED: 32461654
    Karczewski et al. (2020) identifies 443,769 high confidence loss of function variants in the Genome Aggregation Database (gnomAD) population including this variant (p.Val265GlufsTer5). Several methods were used to identify these genes including manual curation and utilizing LOEUF scores.
HI Evidence Comments:
This gene was classified as dosage sensitivity unlikely on 2/1/2021 based on review of population data as described in the PMIDs above. These genes all have at least one curated homozygous loss of function variant in 1% or greater of the gnomAD population dataset and some have also been observed in additional population datasets. As of January 2021, there are no disease associations found in OMIM, and no reports suggesting a Mendelian disease association in the literature. The gnomAD pLI score is 0 and the LOEUF score is 1.43 predicting that this gene is tolerant of LoF variation.

Triplosensitivity (TS) Score Details

TS Score:
0
TS Evidence Strength:
No Evidence for Triplosensitivity (Disclaimer)

Genomic View

Select assembly: (NC_000001.10) (NC_000001.11)