3-97791763-C-T

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_001278293.3(ARL6):​c.480-8C>T variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00268 in 1,613,100 control chromosomes in the GnomAD database, including 96 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.014 ( 49 hom., cov: 32)
Exomes 𝑓: 0.0015 ( 47 hom. )

Consequence

ARL6
NM_001278293.3 splice_region, intron

Scores

2
Splicing: ADA: 0.00001035
2

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:6

Conservation

PhyloP100: 2.76

Publications

1 publications found
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 Gene-Disease associations (from GenCC):
  • Bardet-Biedl syndrome 3
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Genomics England PanelApp, G2P
  • retinitis pigmentosa 55
    Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • retinitis pigmentosa
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • Bardet-Biedl syndrome
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.64).
BP6
Variant 3-97791763-C-T is Benign according to our data. Variant chr3-97791763-C-T is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 262017.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAdExome4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.051 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
ARL6NM_001278293.3 linkc.480-8C>T splice_region_variant, intron_variant Intron 6 of 7 ENST00000463745.6 NP_001265222.1 Q9H0F7-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
ARL6ENST00000463745.6 linkc.480-8C>T splice_region_variant, intron_variant Intron 6 of 7 2 NM_001278293.3 ENSP00000419619.1 Q9H0F7-1

Frequencies

GnomAD3 genomes
AF:
0.0138
AC:
2098
AN:
152082
Hom.:
49
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0484
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00426
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000414
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.0000588
Gnomad OTH
AF:
0.0110
GnomAD2 exomes
AF:
0.00391
AC:
982
AN:
251122
AF XY:
0.00284
show subpopulations
Gnomad AFR exome
AF:
0.0530
Gnomad AMR exome
AF:
0.00177
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000114
Gnomad OTH exome
AF:
0.00163
GnomAD4 exome
AF:
0.00153
AC:
2229
AN:
1460900
Hom.:
47
Cov.:
30
AF XY:
0.00140
AC XY:
1017
AN XY:
726798
show subpopulations
African (AFR)
AF:
0.0531
AC:
1773
AN:
33414
American (AMR)
AF:
0.00192
AC:
86
AN:
44700
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26118
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39580
South Asian (SAS)
AF:
0.00131
AC:
113
AN:
86220
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53358
Middle Eastern (MID)
AF:
0.00139
AC:
8
AN:
5756
European-Non Finnish (NFE)
AF:
0.0000531
AC:
59
AN:
1111404
Other (OTH)
AF:
0.00315
AC:
190
AN:
60350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.447
Heterozygous variant carriers
0
102
204
305
407
509
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
60
120
180
240
300
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0138
AC:
2099
AN:
152200
Hom.:
49
Cov.:
32
AF XY:
0.0133
AC XY:
991
AN XY:
74420
show subpopulations
African (AFR)
AF:
0.0483
AC:
2004
AN:
41522
American (AMR)
AF:
0.00425
AC:
65
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.000415
AC:
2
AN:
4824
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00340
AC:
1
AN:
294
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68006
Other (OTH)
AF:
0.0109
AC:
23
AN:
2110
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.501
Heterozygous variant carriers
0
105
210
315
420
525
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
Variant carriers
0
26
52
78
104
130
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.00600
Hom.:
14
Bravo
AF:
0.0164
Asia WGS
AF:
0.00405
AC:
14
AN:
3474
EpiCase
AF:
0.0000546
EpiControl
AF:
0.000119

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:6
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:3
-
Genome Diagnostics Laboratory, Amsterdam University Medical Center
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

-
PreventionGenetics, part of Exact Sciences
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

-
Genome Diagnostics Laboratory, University Medical Center Utrecht
Significance:Benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

Bardet-Biedl syndrome 3;C3150808:Retinitis pigmentosa 55 Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Bardet-Biedl syndrome 3 Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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 and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Retinitis pigmentosa Benign:1
Jan 13, 2018
Illumina Laboratory Services, Illumina
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

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 and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.64
CADD
Benign
6.6
DANN
Benign
0.41
PhyloP100
2.8
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000010
dbscSNV1_RF
Benign
0.0
SpliceAI score (max)
0.030
Details are displayed if max score is > 0.2

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

Publications

Other links and lift over

dbSNP: rs77010939; hg19: chr3-97510607; API