rs766929085

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 2P and 8B. PM2BP6_Very_Strong

The NM_001134831.2(AHI1):​c.2374-12del variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000116 in 1,414,984 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 31)
Exomes 𝑓: 0.00012 ( 0 hom. )

Consequence

AHI1
NM_001134831.2 splice_polypyrimidine_tract, intron

Scores

Not classified

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:3

Conservation

PhyloP100: 2.48
Variant links:
Genes affected
AHI1 (HGNC:21575): (Abelson helper integration site 1) This gene is apparently required for both cerebellar and cortical development in humans. This gene mutations cause specific forms of Joubert syndrome-related disorders. Joubert syndrome (JS) is a recessively inherited developmental brain disorder with several identified causative chromosomal loci. Alternatively spliced transcript variants encoding different isoforms have been identified. [provided by RefSeq, Oct 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP6
Variant 6-135430011-TA-T is Benign according to our data. Variant chr6-135430011-TA-T is described in ClinVar as [Likely_benign]. Clinvar id is 260845.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AHI1NM_001134831.2 linkuse as main transcriptc.2374-12del splice_polypyrimidine_tract_variant, intron_variant ENST00000265602.11 NP_001128303.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AHI1ENST00000265602.11 linkuse as main transcriptc.2374-12del splice_polypyrimidine_tract_variant, intron_variant 1 NM_001134831.2 ENSP00000265602 P2Q8N157-1

Frequencies

GnomAD3 genomes
AF:
0.0000792
AC:
12
AN:
151582
Hom.:
0
Cov.:
31
show subpopulations
Gnomad AFR
AF:
0.000145
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:
0.0000887
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.000120
AC:
152
AN:
1263402
Hom.:
0
Cov.:
18
AF XY:
0.000124
AC XY:
78
AN XY:
629358
show subpopulations
Gnomad4 AFR exome
AF:
0.000215
Gnomad4 AMR exome
AF:
0.0000994
Gnomad4 ASJ exome
AF:
0.0000419
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000114
Gnomad4 FIN exome
AF:
0.000126
Gnomad4 NFE exome
AF:
0.000124
Gnomad4 OTH exome
AF:
0.000150
GnomAD4 genome
AF:
0.0000792
AC:
12
AN:
151582
Hom.:
0
Cov.:
31
AF XY:
0.0000811
AC XY:
6
AN XY:
74016
show subpopulations
Gnomad4 AFR
AF:
0.000145
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:
0.0000887
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000529

ClinVar

Significance: Benign/Likely benign
Submissions summary: Benign:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not specified Benign:1
Likely benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact Sciences-- -
Joubert syndrome 3 Benign:1
Likely benign, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsApr 28, 2022- -
Familial aplasia of the vermis Benign:1
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 25, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs766929085; hg19: chr6-135751149; API