rs104893679

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PM1PM2PP3_StrongPP5_Very_Strong

The NM_001278293.3(ARL6):​c.506G>C​(p.Gly169Ala) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000118 in 1,613,646 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 12/21 in silico tools predict a damaging outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ARL6
NM_001278293.3 missense

Scores

15
3
1

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:3O:1

Conservation

PhyloP100: 9.52
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 Pathogenic. Variant got 16 ACMG points.

PM1
In a chain ADP-ribosylation factor-like protein 6 (size 184) in uniprot entity ARL6_HUMAN there are 7 pathogenic changes around while only 1 benign (88%) in NM_001278293.3
PM2
Very rare variant in population databases, with high coverage;
PP3
MetaRNN computational evidence supports a deleterious effect, 0.988
PP5
Variant 3-97791797-G-C is Pathogenic according to our data. Variant chr3-97791797-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2041.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ARL6NM_001278293.3 linkc.506G>C p.Gly169Ala missense_variant Exon 7 of 8 ENST00000463745.6 NP_001265222.1 Q9H0F7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ARL6ENST00000463745.6 linkc.506G>C p.Gly169Ala missense_variant Exon 7 of 8 2 NM_001278293.3 ENSP00000419619.1 Q9H0F7-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152182
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.00000398
AC:
1
AN:
251336
Hom.:
0
AF XY:
0.00000736
AC XY:
1
AN XY:
135834
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000123
AC:
18
AN:
1461464
Hom.:
0
Cov.:
30
AF XY:
0.00000963
AC XY:
7
AN XY:
727058
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000153
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152182
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74340
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000756
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0

ClinVar

Significance: Pathogenic/Likely pathogenic
Submissions summary: Pathogenic:3Other:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 3;C3150808:Retinitis pigmentosa 55 Pathogenic:1
Jan 18, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with alanine, which is neutral and non-polar, at codon 169 of the ARL6 protein (p.Gly169Ala). This variant is present in population databases (rs104893679, gnomAD 0.0009%). This missense change has been observed in individual(s) with Bardet-Biedl syndrome (PMID: 15314642). It has also been observed to segregate with disease in related individuals. This variant is also known as 859G>C G169A. ClinVar contains an entry for this variant (Variation ID: 2041). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. Experimental studies have shown that this missense change affects ARL6 function (PMID: 19236846). For these reasons, this variant has been classified as Pathogenic. -

Bardet-Biedl syndrome 3;C2936862:Bardet-Biedl syndrome 1;C3150808:Retinitis pigmentosa 55 Pathogenic:1
Apr 11, 2024
Fulgent Genetics, Fulgent Genetics
Significance: Likely pathogenic
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Bardet-Biedl syndrome 3 Pathogenic:1
Sep 01, 2004
OMIM
Significance: Pathogenic
Review Status: no assertion criteria provided
Collection Method: literature only

- -

Bardet-Biedl syndrome 1, modifier of Other:1
Sep 01, 2004
OMIM
Significance: risk factor
Review Status: no assertion criteria provided
Collection Method: literature only

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.85
BayesDel_addAF
Pathogenic
0.45
D
BayesDel_noAF
Pathogenic
0.41
CADD
Pathogenic
29
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.80
D;D;D;.
Eigen
Pathogenic
0.94
Eigen_PC
Pathogenic
0.83
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.97
.;D;.;D
M_CAP
Pathogenic
0.41
D
MetaRNN
Pathogenic
0.99
D;D;D;D
MetaSVM
Pathogenic
0.94
D
MutationAssessor
Pathogenic
3.8
H;H;H;.
PrimateAI
Pathogenic
0.79
T
PROVEAN
Pathogenic
-5.6
D;D;D;.
REVEL
Pathogenic
0.95
Sift
Pathogenic
0.0
D;D;D;.
Sift4G
Uncertain
0.0030
D;D;D;D
Polyphen
1.0
D;D;D;.
Vest4
0.98
MutPred
0.95
Loss of glycosylation at K166 (P = 0.0486);Loss of glycosylation at K166 (P = 0.0486);Loss of glycosylation at K166 (P = 0.0486);.;
MVP
0.96
MPC
0.61
ClinPred
1.0
D
GERP RS
4.4
Varity_R
0.96
gMVP
0.83

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.020
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: rs104893679; hg19: chr3-97510641; API