chr3-93980161-C-T

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_001174150.2(ARL13B):​c.-263C>T variant causes a 5 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00757 in 634,016 control chromosomes in the GnomAD database, including 30 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.0069 ( 5 hom., cov: 32)
Exomes 𝑓: 0.0078 ( 25 hom. )

Consequence

ARL13B
NM_001174150.2 5_prime_UTR

Scores

2

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 1.17
Variant links:
Genes affected
ARL13B (HGNC:25419): (ADP ribosylation factor like GTPase 13B) This gene encodes a member of the ADP-ribosylation factor-like family. The encoded protein is a small GTPase that contains both N-terminal and C-terminal guanine nucleotide-binding motifs. This protein is localized in the cilia and plays a role in cilia formation and in maintenance of cilia. Mutations in this gene are the cause of Joubert syndrome 8. Alternate splicing results in multiple transcript variants. [provided by RefSeq, Mar 2010]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.57).
BP6
Variant 3-93980161-C-T is Benign according to our data. Variant chr3-93980161-C-T is described in ClinVar as [Likely_benign]. Clinvar id is 346901.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BS1
Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.00691 (1052/152332) while in subpopulation NFE AF= 0.0112 (765/68026). AF 95% confidence interval is 0.0106. There are 5 homozygotes in gnomad4. There are 469 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
BS2
High Homozygotes in GnomAd4 at 5 AR gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ARL13BNM_001174150.2 linkuse as main transcriptc.-263C>T 5_prime_UTR_variant 1/10 ENST00000394222.8 NP_001167621.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ARL13BENST00000394222.8 linkuse as main transcriptc.-263C>T 5_prime_UTR_variant 1/101 NM_001174150.2 ENSP00000377769 P1Q3SXY8-1

Frequencies

GnomAD3 genomes
AF:
0.00692
AC:
1054
AN:
152214
Hom.:
5
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00176
Gnomad AMI
AF:
0.00219
Gnomad AMR
AF:
0.00785
Gnomad ASJ
AF:
0.0147
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00249
Gnomad FIN
AF:
0.00113
Gnomad MID
AF:
0.00318
Gnomad NFE
AF:
0.0113
Gnomad OTH
AF:
0.00813
GnomAD3 exomes
AF:
0.00680
AC:
719
AN:
105692
Hom.:
3
AF XY:
0.00674
AC XY:
382
AN XY:
56672
show subpopulations
Gnomad AFR exome
AF:
0.00134
Gnomad AMR exome
AF:
0.00682
Gnomad ASJ exome
AF:
0.0111
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00202
Gnomad FIN exome
AF:
0.000283
Gnomad NFE exome
AF:
0.0112
Gnomad OTH exome
AF:
0.00683
GnomAD4 exome
AF:
0.00778
AC:
3748
AN:
481684
Hom.:
25
Cov.:
4
AF XY:
0.00745
AC XY:
1924
AN XY:
258218
show subpopulations
Gnomad4 AFR exome
AF:
0.00179
Gnomad4 AMR exome
AF:
0.00661
Gnomad4 ASJ exome
AF:
0.0106
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00247
Gnomad4 FIN exome
AF:
0.00174
Gnomad4 NFE exome
AF:
0.0106
Gnomad4 OTH exome
AF:
0.00788
GnomAD4 genome
AF:
0.00691
AC:
1052
AN:
152332
Hom.:
5
Cov.:
32
AF XY:
0.00630
AC XY:
469
AN XY:
74500
show subpopulations
Gnomad4 AFR
AF:
0.00176
Gnomad4 AMR
AF:
0.00784
Gnomad4 ASJ
AF:
0.0147
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00249
Gnomad4 FIN
AF:
0.00113
Gnomad4 NFE
AF:
0.0112
Gnomad4 OTH
AF:
0.00757
Alfa
AF:
0.00437
Hom.:
1
Bravo
AF:
0.00736
Asia WGS
AF:
0.000866
AC:
3
AN:
3478

ClinVar

Significance: Likely benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:2
Likely benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
Likely benign, criteria provided, single submitterclinical testingGeneDxJun 19, 2018This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.57
CADD
Benign
12
DANN
Benign
0.92

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: rs143828740; hg19: chr3-93699005; API