3-97768145-TGAA-T

Variant summary

Our verdict is Uncertain significance. Variant got 5 ACMG points: 5P and 0B. PM1PM2PM4_Supporting

The NM_001278293.3(ARL6):​c.46_48del​(p.Lys16del) variant causes a inframe deletion change. The variant allele was found at a frequency of 0.0000143 in 1,613,034 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (β˜…β˜…).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000011 ( 0 hom. )

Consequence

ARL6
NM_001278293.3 inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 6.53
Variant links:
Genes affected
ARL6 (HGNC:13210): (ADP ribosylation factor like GTPase 6) The protein encoded by this gene belongs to the ARF-like (ADP ribosylation factor-like) sub-family of the ARF family of GTP-binding proteins which are involved in regulation of intracellular traffic. Mutations in this gene are associated with Bardet-Biedl syndrome (BBS). A vision-specific transcript, encoding long isoform BBS3L, has been described (PMID: 20333246). [provided by RefSeq, Apr 2016]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 5 ACMG points.

PM1
In a chain ADP-ribosylation factor-like protein 6 (size 184) in uniprot entity ARL6_HUMAN there are 22 pathogenic changes around while only 3 benign (88%) in NM_001278293.3
PM2
Very rare variant in population databases, with high coverage;
PM4
Nonframeshift variant in NON repetitive region in NM_001278293.3. Strenght limited to Supporting due to length of the change: 1aa.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ARL6NM_001278293.3 linkuse as main transcriptc.46_48del p.Lys16del inframe_deletion 2/8 ENST00000463745.6

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ARL6ENST00000463745.6 linkuse as main transcriptc.46_48del p.Lys16del inframe_deletion 2/82 NM_001278293.3 P1Q9H0F7-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152116
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000724
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000207
Gnomad FIN
AF:
0.000188
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000199
AC:
5
AN:
251314
Hom.:
0
AF XY:
0.0000147
AC XY:
2
AN XY:
135828
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.0000653
Gnomad FIN exome
AF:
0.0000924
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000110
AC:
16
AN:
1460918
Hom.:
0
AF XY:
0.0000124
AC XY:
9
AN XY:
726762
show subpopulations
Gnomad4 AFR exome
AF:
0.0000299
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000812
Gnomad4 FIN exome
AF:
0.0000749
Gnomad4 NFE exome
AF:
0.00000270
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152116
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.0000724
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.000188
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 3;C3150808:Retinitis pigmentosa 55 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpFeb 04, 2022This variant, c.46_48del, results in the deletion of 1 amino acid(s) of the ARL6 protein (p.Lys16del), but otherwise preserves the integrity of the reading frame. This variant is present in population databases (rs748472414, gnomAD 0.008%). This variant has not been reported in the literature in individuals affected with ARL6-related conditions. ClinVar contains an entry for this variant (Variation ID: 838345). Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -
Retinitis pigmentosa 55 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenetics and Molecular Pathology, SA PathologyDec 31, 2021- -
ARL6-related disorder Uncertain:1
Uncertain significance, no assertion criteria providedclinical testingPreventionGenetics, part of Exact SciencesSep 13, 2024The ARL6 c.46_48delAAG variant is predicted to result in an in-frame deletion (p.Lys16del). To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.016% of alleles in individuals of European (Finnish) descent in gnomAD. At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs748472414; hg19: chr3-97486989; API