Variant 11-66551312-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_001104.4(ACTN3):c.221G>A(p.Arg74His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000484 in 1,611,408 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00051 ( 0 hom. )

Consequence

ACTN3
NM_001104.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 10.0

Variant links:

Genes affected

ACTN3 (HGNC:165): (actinin alpha 3) This gene encodes a member of the alpha-actin binding protein gene family. The encoded protein is primarily expressed in skeletal muscle and functions as a structural component of sarcomeric Z line. This protein is involved in crosslinking actin containing thin filaments. An allelic polymorphism in this gene results in both coding and non-coding variants; the reference genome represents the coding allele. The non-functional allele of this gene is associated with elite athlete status. [provided by RefSeq, Feb 2014]

ACTN3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.815

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ACTN3	NM_001104.4 linkuse as main transcript	c.221G>A	p.Arg74His	missense_variant	2/21	ENST00000513398.2
ACTN3	NM_001258371.3 linkuse as main transcript	c.350G>A	p.Arg117His	missense_variant	2/21

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
ACTN3	ENST00000513398.2 linkuse as main transcript	c.221G>A	p.Arg74His	missense_variant	2/21	1	NM_001104.4	P1
ACTN3	ENST00000502692.5 linkuse as main transcript	c.350G>A	p.Arg117His	missense_variant	2/21	2
ACTN3	ENST00000511191.1 linkuse as main transcript	c.*188G>A		3_prime_UTR_variant, NMD_transcript_variant	2/5	5

Frequencies

GnomAD3 genomes

AF:

0.000237

AC:

AN:

152212

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000121

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:

0.000456

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000167

AC:

AN:

245892

Hom.:

AF XY:

0.000181

AC XY:

AN XY:

132926

show subpopulations

Gnomad AFR exome

AF:

0.0000656

Gnomad AMR exome

AF:

0.0000587

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:

0.000333

Gnomad OTH exome

AF:

0.000166

GnomAD4 exome

AF:

0.000510

AC:

744

AN:

1459196

Hom.:

Cov.:

AF XY:

0.000489

AC XY:

355

AN XY:

725546

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.0000451

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.0000350

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.000627

Gnomad4 OTH exome

AF:

0.000680

GnomAD4 genome

AF:

0.000237

AC:

AN:

152212

Hom.:

Cov.:

AF XY:

0.000175

AC XY:

AN XY:

74356

show subpopulations

Gnomad4 AFR

AF:

0.000121

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:

0.000456

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000376

Hom.:

Bravo

AF:

0.000261

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000778

AC:

ESP6500AA

AF:

0.000455

AC:

ESP6500EA

AF:

0.000349

AC:

ExAC

AF:

0.000181

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Aug 16, 2021

The c.221G>A (p.R74H) alteration is located in exon 2 (coding exon 2) of the ACTN3 gene. This alteration results from a G to A substitution at nucleotide position 221, causing the arginine (R) at amino acid position 74 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Uncertain

0.47

BayesDel_addAF

Pathogenic

0.18

BayesDel_noAF

Pathogenic

0.33

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.45

T;D

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Pathogenic

0.99

D;D

MetaRNN

Pathogenic

0.82

D;D

PrimateAI

Uncertain

0.77

Sift4G

Uncertain

0.019

D;D

Polyphen

1.0

.;D

Vest4

0.82

MVP

0.87

GERP RS

5.0

Varity_R

0.30

gMVP

0.50

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.0

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