Variant chr3-97764689-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBS1_Supporting

The ENST00000493990.5(ARL6):c.-415C>T variant causes a 5 prime UTR, NMD transcript change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000526 in 152,196 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00053 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ARL6
ENST00000493990.5 5_prime_UTR, NMD_transcript

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:2

Conservation

PhyloP100: -1.75

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]

ARL6 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.85).

BS1

Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000526 (80/152196) while in subpopulation NFE AF= 0.000838 (57/68028). AF 95% confidence interval is 0.000664. There are 0 homozygotes in gnomad4. There are 42 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	#exon/exons	Protein
ARL6	NM_032146.5 linkuse as main transcript	c.-415C>T	5_prime_UTR_variant	1/9	NP_115522.1
ARL6	NM_177976.3 linkuse as main transcript	c.-375C>T	5_prime_UTR_variant	1/9	NP_816931.1
ARL6	XM_017007311.3 linkuse as main transcript	c.-474C>T	5_prime_UTR_variant	1/10	XP_016862800.1

Ensembl

Gene	Transcript	HGVSc	Effect	#exon/exons	TSL	Protein	Appris	UniProt
ARL6	ENST00000493990.5 linkuse as main transcript	c.-415C>T	5_prime_UTR_variant, NMD_transcript_variant	1/10	1	ENSP00000418057		Q9H0F7-1
ARL6	ENST00000335979.6 linkuse as main transcript	c.-415C>T	5_prime_UTR_variant	1/9	5	ENSP00000337722	P1	Q9H0F7-1
ARL6	ENST00000462412.3 linkuse as main transcript	c.-375C>T	5_prime_UTR_variant	1/9	5	ENSP00000418740	P1	Q9H0F7-1

Frequencies

GnomAD3 genomes

AF:

0.000526

AC:

AN:

152196

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000265

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:

0.000848

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000838

Gnomad OTH

AF:

0.000958

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

128

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000526

AC:

AN:

152196

Hom.:

Cov.:

AF XY:

0.000565

AC XY:

AN XY:

74346

show subpopulations

Gnomad4 AFR

AF:

0.000265

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.000207

Gnomad4 FIN

AF:

0.000848

Gnomad4 NFE

AF:

0.000838

Gnomad4 OTH

AF:

0.000958

Alfa

AF:

0.000900

Hom.:

Bravo

AF:

0.000567

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Bardet-Biedl syndrome 3

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Retinitis pigmentosa

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.85

CADD

Benign

0.34

DANN

Benign

0.79

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over