chr6-135455775-G-T

Variant summary

Our verdict is Likely benign. Variant got -1 ACMG points: 2P and 3B. PM2BP4_ModerateBP6

The ENST00000265602.11(AHI1):​c.1303C>A​(p.Arg435=) variant causes a synonymous change. The variant allele was found at a frequency of 0.00002 in 1,602,926 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000090 ( 0 hom. )

Consequence

AHI1
ENST00000265602.11 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:1

Conservation

PhyloP100: 4.45
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 -1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.41).
BP6
Variant 6-135455775-G-T is Benign according to our data. Variant chr6-135455775-G-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 969396.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=1}.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
AHI1NM_001134831.2 linkuse as main transcriptc.1303C>A p.Arg435= synonymous_variant 10/29 ENST00000265602.11 NP_001128303.1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
AHI1ENST00000265602.11 linkuse as main transcriptc.1303C>A p.Arg435= synonymous_variant 10/291 NM_001134831.2 ENSP00000265602 P2Q8N157-1

Frequencies

GnomAD3 genomes
AF:
0.000118
AC:
18
AN:
152076
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.000435
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000384
AC:
9
AN:
234460
Hom.:
0
AF XY:
0.0000237
AC XY:
3
AN XY:
126646
show subpopulations
Gnomad AFR exome
AF:
0.000565
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.000174
GnomAD4 exome
AF:
0.00000896
AC:
13
AN:
1450732
Hom.:
0
Cov.:
30
AF XY:
0.00000833
AC XY:
6
AN XY:
720616
show subpopulations
Gnomad4 AFR exome
AF:
0.000331
Gnomad4 AMR exome
AF:
0.0000229
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:
0.0000167
GnomAD4 genome
AF:
0.000125
AC:
19
AN:
152194
Hom.:
0
Cov.:
32
AF XY:
0.000161
AC XY:
12
AN XY:
74416
show subpopulations
Gnomad4 AFR
AF:
0.000458
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:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000765
Hom.:
0
Bravo
AF:
0.000136

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Joubert syndrome 3 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingFulgent Genetics, Fulgent GeneticsMar 16, 2022- -
Familial aplasia of the vermis Benign:1
Likely benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 16, 2024- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.41
CADD
Benign
15
DANN
Benign
0.62

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.16
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: rs121434349; hg19: chr6-135776913; API