rs78266558

Variant names:

Variant summary

Our verdict is Benign. The variant received -8 ACMG points: 0P and 8B. BA1

This summary comes from the ClinGen Evidence Repository: The NM_213599.3: c.616A>G variant in ANO5 is a missense variant predicted to cause substitution of threonine by alanine at amino acid 206 (p.Thr206Ala). The filtering allele frequency of this variant is 0.02707 (the lower threshold of the 95% CI of 562/250584 African/African American chromosomes in gnomAD v2.1.1), which is higher than the ClinGen LGMD VCEP threshold (>0.003) for BA1 and therefore meets this criterion (BA1). At least one patient who displayed progressive weakness and a possible congenital myopathy has been reported to have this variant (PMID:25891276); however, PP4 is not applied when BA1 is met. In summary, this variant meets the criteria to be classified as Benign for autosomal recessive limb girdle muscular dystrophy based on the ACMG/AMP criteria applied, as specified by the ClinGen LGMD VCEP (LGMD VCEP specifications version 1.0.0; 01/07/2025): BA1. LINK:https://erepo.genome.network/evrepo/ui/classification/CA151833/MONDO:0015152/188

Frequency

Genomes: 𝑓 0.0087 ( 24 hom., cov: 32)

Exomes 𝑓: 0.00085 ( 19 hom. )

Consequence

ANO5
NM_213599.3 missense

Scores

Clinical Significance

Benign reviewed by expert panel B:15

Conservation

PhyloP100: 3.96

Publications

4 publications found

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 Gene-Disease associations (from GenCC):

autosomal recessive limb-girdle muscular dystrophy
Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
gnathodiaphyseal dysplasia
Inheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
autosomal recessive limb-girdle muscular dystrophy type 2L
Inheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
Miyoshi muscular dystrophy 3
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)

ANO5 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -8 ACMG points.

BA1

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ANO5	NM_213599.3 link	c.616A>G	p.Thr206Ala	missense_variant	Exon 7 of 22	ENST00000324559.9	NP_998764.1	Q75V66

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ANO5	ENST00000324559.9 link	c.616A>G	p.Thr206Ala	missense_variant	Exon 7 of 22	1	NM_213599.3	ENSP00000315371.9		Q75V66

Frequencies

GnomAD3 genomes

AF:

0.00868

AC:

1320

AN:

152078

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0301

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00367

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00318

Gnomad NFE

AF:

0.0000441

Gnomad OTH

AF:

0.00669

GnomAD2 exomes

AF:

0.00224

AC:

562

AN:

250584

AF XY:

0.00173

show subpopulations

Gnomad AFR exome

AF:

0.0292

Gnomad AMR exome

AF:

0.00183

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000106

Gnomad OTH exome

AF:

0.00115

GnomAD4 exome

AF:

0.000851

AC:

1243

AN:

1461266

Hom.:

Cov.:

AF XY:

0.000763

AC XY:

555

AN XY:

726932

show subpopulations

African (AFR)

AF:

0.0275

AC:

918

AN:

33424

American (AMR)

AF:

0.00206

AC:

AN:

44596

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26108

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.000151

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53400

Middle Eastern (MID)

AF:

0.00139

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.0000603

AC:

AN:

1111688

Other (OTH)

AF:

0.00240

AC:

145

AN:

60354

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.471

Heterozygous variant carriers

142

213

284

355

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

102

136

170

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.00869

AC:

1322

AN:

152196

Hom.:

Cov.:

AF XY:

0.00847

AC XY:

630

AN XY:

74404

show subpopulations

African (AFR)

AF:

0.0300

AC:

1247

AN:

41536

American (AMR)

AF:

0.00367

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5162

South Asian (SAS)

AF:

0.000207

AC:

AN:

4824

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10612

Middle Eastern (MID)

AF:

0.00342

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.0000441

AC:

AN:

68000

Other (OTH)

AF:

0.00662

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

128

193

257

321

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

100

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.00327

Hom.:

Bravo

AF:

0.00961

ESP6500AA

AF:

0.0252

AC:

111

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.00294

AC:

357

Asia WGS

AF:

0.00231

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Benign

Submissions summary: Benign:15

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

not specified

Benign:4

Jan 25, 2016

Eurofins Ntd Llc (ga)

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 06, 2016

GeneDx

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Jan 22, 2020

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Genetic Services Laboratory, University of Chicago

Significance:Likely benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

Likely benign based on allele frequency in 1000 Genomes Project or ESP global frequency and its presence in a patient with a rare or unrelated disease phenotype. NOT Sanger confirmed. -

not provided

Benign:2

Aug 01, 2024

CeGaT Center for Human Genetics Tuebingen

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

ANO5: BP4, BS1, BS2 -

Breakthrough Genomics, Breakthrough Genomics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:not provided

- -

Gnathodiaphyseal dysplasia

Benign:2

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

May 28, 2019

Mendelics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Miyoshi muscular dystrophy 3

Benign:1

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Autosomal recessive limb-girdle muscular dystrophy

Benign:1

Jan 07, 2025

ClinGen Limb Girdle Muscular Dystrophy Variant Curation Expert Panel, ClinGen

Significance:Benign

Review Status:reviewed by expert panel

Collection Method:curation

The NM_213599.3: c.616A>G variant in ANO5 is a missense variant predicted to cause substitution of threonine by alanine at amino acid 206 (p.Thr206Ala). The filtering allele frequency of this variant is 0.02707 (the lower threshold of the 95% CI of 562/250584 African/African American chromosomes in gnomAD v2.1.1), which is higher than the ClinGen LGMD VCEP threshold (>0.003) for BA1 and therefore meets this criterion (BA1). At least one patient who displayed progressive weakness and a possible congenital myopathy has been reported to have this variant (PMID: 25891276); however, PP4 is not applied when BA1 is met. In summary, this variant meets the criteria to be classified as Benign for autosomal recessive limb girdle muscular dystrophy based on the ACMG/AMP criteria applied, as specified by the ClinGen LGMD VCEP (LGMD VCEP specifications version 1.0.0; 01/07/2025): BA1. -

ANO5-related disorder

Benign:1

Oct 12, 2020

PreventionGenetics, part of Exact Sciences

Significance:Benign

Review Status:no assertion criteria provided

Collection Method:clinical testing

This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

ANO5-Related Muscle Diseases

Benign:1

Apr 28, 2017

Illumina Laboratory Services, Illumina

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases was too high to be consistent with this variant causing disease. Therefore, this variant is classified as benign. -

Gnathodiaphyseal dysplasia;C1969785:Autosomal recessive limb-girdle muscular dystrophy type 2L;C2750076:Miyoshi muscular dystrophy 3

Benign:1

Feb 28, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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

Benign:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Autosomal recessive limb-girdle muscular dystrophy type 2L

Benign:1

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.069

BayesDel_addAF

Benign

-0.58

BayesDel_noAF

Benign

-0.58

CADD

Benign

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.25

Eigen

Benign

-0.26

Eigen_PC

Benign

-0.29

FATHMM_MKL

Benign

0.54

LIST_S2

Benign

0.74

MetaRNN

Benign

0.0073

MetaSVM

Benign

-1.0

MutationAssessor

Uncertain

2.2

PhyloP100

4.0

PrimateAI

Benign

0.32

PROVEAN

Uncertain

-2.9

REVEL

Benign

0.16

Sift

Benign

0.10

Sift4G

Uncertain

0.045

Polyphen

0.28

Vest4

0.74

MVP

0.27

MPC

0.088

ClinPred

0.025

GERP RS

3.2

Varity_R

0.16

gMVP

0.58

Mutation Taster

=94/6

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over