Variant chr6-135455750-A-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Pathogenic. Variant got 14 ACMG points: 14P and 0B. PM2PP3_StrongPP5_Very_Strong

The NM_001134831.2(AHI1):c.1328T>A(p.Val443Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000208 in 1,442,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Synonymous variant affecting the same amino acid position (i.e. V443V) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

AHI1
NM_001134831.2 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:4

Conservation

PhyloP100: 8.88

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]

AHI1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 14 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.982

PP5

Variant 6-135455750-A-T is Pathogenic according to our data. Variant chr6-135455750-A-T is described in ClinVar as [Likely_pathogenic]. Clinvar id is 2012.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr6-135455750-A-T is described in Lovd as [Pathogenic]. Variant chr6-135455750-A-T is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
AHI1	NM_001134831.2 linkuse as main transcript	c.1328T>A	p.Val443Asp	missense_variant	10/29	ENST00000265602.11

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
AHI1	ENST00000265602.11 linkuse as main transcript	c.1328T>A	p.Val443Asp	missense_variant	10/29	1	NM_001134831.2	P2	Q8N157-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000208

AC:

AN:

1442842

Hom.:

Cov.:

AF XY:

0.00000140

AC XY:

AN XY:

716272

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:

0.00000182

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Joubert syndrome 3

Pathogenic:3

Pathogenic, no assertion criteria provided	literature only	OMIM	May 10, 2013	- -
Likely pathogenic, criteria provided, single submitter	research	Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center	Mar 17, 2024	- -
Pathogenic, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Nov 17, 2023	- -

Global developmental delay;CN228298:Typical Joubert syndrome MRI findings

Pathogenic:1

Likely pathogenic, no assertion criteria provided

research

Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center

Dec 01, 2014

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.95

BayesDel_addAF

Pathogenic

0.36

BayesDel_noAF

Pathogenic

0.28

CADD

Pathogenic

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.69

D;D;D;.

Eigen

Pathogenic

0.80

Eigen_PC

Pathogenic

0.78

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Uncertain

0.95

.;.;D;D

M_CAP

Pathogenic

0.41

MetaRNN

Pathogenic

0.98

D;D;D;D

MetaSVM

Uncertain

-0.18

MutationAssessor

Uncertain

2.8

M;M;M;M

MutationTaster

Benign

1.0

A;A;A;A

PrimateAI

Uncertain

0.65

PROVEAN

Pathogenic

-5.7

D;D;D;D

REVEL

Pathogenic

0.84

Sift

Uncertain

0.0010

D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;D

Polyphen

1.0

D;D;D;D

Vest4

0.99

MutPred

0.87

Loss of sheet (P = 0.007);Loss of sheet (P = 0.007);Loss of sheet (P = 0.007);Loss of sheet (P = 0.007);

MVP

0.85

MPC

0.30

ClinPred

1.0

GERP RS

5.5

Varity_R

0.90

gMVP

0.77

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.

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