rs398124625

Positions:

Variant summary

Our verdict is Pathogenic. Variant got 16 ACMG points: 16P and 0B. PVS1PP5_Very_Strong

The NM_213599.3(ANO5):c.41-1G>A variant causes a splice acceptor change. The variant allele was found at a frequency of 0.0000854 in 1,463,632 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. 3/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as Likely pathogenic (★★).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000088 ( 0 hom. )

Consequence

ANO5
NM_213599.3 splice_acceptor

Scores

Splicing: ADA: 1.000

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:7

Conservation

PhyloP100: 4.05

Variant links:

Genes affected

ANO5 (HGNC:27337): (anoctamin 5) This gene encodes a member of the anoctamin family of transmembrane proteins. The encoded protein is likely a calcium activated chloride channel. Mutations in this gene have been associated with gnathodiaphyseal dysplasia. Alternatively spliced transcript variants have been described. [provided by RefSeq, Nov 2009]

ANO5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 16 ACMG points.

PVS1

Splicing +-2 bp (donor or acceptor) variant, LoF is a know mechanism of disease, Cryptic splice site detected, with MaxEntScore 7.9, offset of 1, new splice context is: tctttcttatttaatttaAGgga. Cryptic site results in frameshift change. If cryptic site found is not functional and variant results in exon loss, it results in frameshift change.

PP5

Variant 11-22203803-G-A is Pathogenic according to our data. Variant chr11-22203803-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 96685.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-22203803-G-A is described in Lovd as [Likely_pathogenic]. Variant chr11-22203803-G-A is described in Lovd as [Pathogenic]. Variant chr11-22203803-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ANO5	NM_213599.3 linkuse as main transcript	c.41-1G>A		splice_acceptor_variant		ENST00000324559.9	NP_998764.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ANO5	ENST00000324559.9 linkuse as main transcript	c.41-1G>A		splice_acceptor_variant		1	NM_213599.3	ENSP00000315371	P2

Frequencies

GnomAD3 genomes

AF:

0.0000660

AC:

AN:

151598

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000657

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:

0.000133

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000123

AC:

AN:

244456

Hom.:

AF XY:

0.0000226

AC XY:

AN XY:

132488

show subpopulations

Gnomad AFR exome

AF:

0.00

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:

0.0000271

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000877

AC:

115

AN:

1312034

Hom.:

Cov.:

AF XY:

0.0000989

AC XY:

AN XY:

657018

show subpopulations

Gnomad4 AFR exome

AF:

0.0000330

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:

0.0000195

Gnomad4 NFE exome

AF:

0.000114

Gnomad4 OTH exome

AF:

0.0000183

GnomAD4 genome

AF:

0.0000660

AC:

AN:

151598

Hom.:

Cov.:

AF XY:

0.0000541

AC XY:

AN XY:

73988

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000657

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000133

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000965

Hom.:

Bravo

AF:

0.0000416

ExAC

AF:

0.00000825

AC:

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:7

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Pathogenic:5

Pathogenic, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Feb 01, 2021	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen	Oct 23, 2020	- -
Pathogenic, criteria provided, single submitter	clinical testing	Revvity Omics, Revvity	Sep 27, 2023	- -
Pathogenic, criteria provided, single submitter	clinical testing	GeneDx	Jul 27, 2018	The c.41-1G>A pathogenic variant in the ANO5 gene has been reported previously in the compound heterozygous state with another pathogenic variant in an individual with limb-girdle muscular dystrophy (van der Kooi et al., 2013). This splice site variant destroys the canonical splice acceptor site in intron 1. It is predicted to cause abnormal gene splicing, either leading to an abnormal message that is subject to nonsense-mediated mRNA decay, or to an abnormal protein product if the message is used for protein translation. The c.41-1G>A variant was not observed in approximately 6400 individuals of European and African American ancestry in the NHLBI Exome Sequencing Project, indicating it is not a common benign variant in these populations. We interpret c.41-1G>A as a pathogenic variant. -
Pathogenic, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Sep 14, 2016	- -

Gnathodiaphyseal dysplasia;C1969785:Autosomal recessive limb-girdle muscular dystrophy type 2L

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jan 22, 2024

This sequence change affects an acceptor splice site in intron 1 of the ANO5 gene. It is expected to disrupt RNA splicing. Variants that disrupt the donor or acceptor splice site typically lead to a loss of protein function (PMID: 16199547), and loss-of-function variants in ANO5 are known to be pathogenic (PMID: 21186264, 23606453, 25891276, 30919934). This variant is present in population databases (rs398124625, gnomAD 0.004%). Disruption of this splice site has been observed in individual(s) with limb-girdle muscular dystrophy and hyperCKemia and periodic loss of ambulation (PMID: 23607914; Invitae). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 96685). Algorithms developed to predict the effect of sequence changes on RNA splicing suggest that this variant may disrupt the consensus splice site. For these reasons, this variant has been classified as Pathogenic. -

Autosomal recessive limb-girdle muscular dystrophy type 2L

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Athena Diagnostics

Nov 08, 2013

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.58

BayesDel_noAF

Benign

-0.38

CADD

Pathogenic

DANN

Benign

0.96

Eigen

Pathogenic

0.75

Eigen_PC

Uncertain

0.47

FATHMM_MKL

Uncertain

0.92

MutationTaster

Benign

1.0

GERP RS

4.0

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Pathogenic

1.0

dbscSNV1_RF

Pathogenic

0.87

SpliceAI score (max)

0.92

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.86

Position offset: 2

DS_AL_spliceai

0.92

Position offset: 1

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