Genetic Variant ACTN4:p.Ala884Ala (chr19-38729348-G-A) – ACMG Classification: Benign (-21 pts)

Variant summary

Our verdict is Benign. The variant received -21 ACMG points: 0P and 21B. BP4_StrongBP6_Very_StrongBP7BS1BS2

The NM_004924.6(ACTN4):c.2652G>A(p.Ala884Ala) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000998 in 1,612,558 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 Likely benign (★★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000092 ( 0 hom. )

Consequence

ACTN4
NM_004924.6 synonymous

Scores

Clinical Significance

Benign/Likely benign criteria provided, multiple submitters, no conflicts B:4

Conservation

PhyloP100: -1.15

Publications

0 publications found

Variant links:

Genes affected

ACTN4 (HGNC:166): (actinin alpha 4) Alpha actinins belong to the spectrin gene superfamily which represents a diverse group of cytoskeletal proteins, including the alpha and beta spectrins and dystrophins. Alpha actinin is an actin-binding protein with multiple roles in different cell types. In nonmuscle cells, the cytoskeletal isoform is found along microfilament bundles and adherens-type junctions, where it is involved in binding actin to the membrane. In contrast, skeletal, cardiac, and smooth muscle isoforms are localized to the Z-disc and analogous dense bodies, where they help anchor the myofibrillar actin filaments. This gene encodes a nonmuscle, alpha actinin isoform which is concentrated in the cytoplasm, and thought to be involved in metastatic processes. Mutations in this gene have been associated with focal and segmental glomerulosclerosis. [provided by RefSeq, Jul 2008]

ACTN4 Gene-Disease associations (from GenCC):

focal segmental glomerulosclerosis 1
Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
familial idiopathic steroid-resistant nephrotic syndrome
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACTN4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -21 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.8).

BP6

Variant 19-38729348-G-A is Benign according to our data. Variant chr19-38729348-G-A is described in ClinVar as Benign/Likely_benign. ClinVar VariationId is 585363.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BP7

Synonymous conserved (PhyloP=-1.15 with no splicing effect.

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000178 (27/151936) while in subpopulation AMR AF = 0.000327 (5/15274). AF 95% confidence interval is 0.000149. There are 0 homozygotes in GnomAd4. There are 9 alleles in the male GnomAd4 subpopulation. Median coverage is 31. This position passed quality control check.

BS2

High AC in GnomAd4 at 27 AD gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004924.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ACTN4	NM_004924.6	MANE Select	c.2652G>A	p.Ala884Ala	synonymous	Exon 21 of 21	NP_004915.2
ACTN4	NM_001440296.1		c.2718G>A	p.Ala906Ala	synonymous	Exon 22 of 22	NP_001427225.1
ACTN4	NM_001440300.1		c.2718G>A	p.Ala906Ala	synonymous	Exon 22 of 22	NP_001427229.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
ACTN4	ENST00000252699.7	TSL:1 MANE Select	c.2652G>A	p.Ala884Ala	synonymous	Exon 21 of 21	ENSP00000252699.2
ACTN4	ENST00000424234.7	TSL:1	c.2652G>A	p.Ala884Ala	synonymous	Exon 21 of 21	ENSP00000411187.4
ACTN4	ENST00000390009.7	TSL:1	c.1995G>A	p.Ala665Ala	synonymous	Exon 14 of 14	ENSP00000439497.1

Frequencies

GnomAD3 genomes

AF:

0.000178

AC:

AN:

151818

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000266

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000328

Gnomad ASJ

AF:

0.000866

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000103

Gnomad OTH

AF:

0.000479

GnomAD2 exomes

AF:

0.000132

AC:

AN:

249222

AF XY:

0.0000960

show subpopulations

Gnomad AFR exome

AF:

0.000125

Gnomad AMR exome

AF:

0.000232

Gnomad ASJ exome

AF:

0.000802

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000116

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000917

AC:

134

AN:

1460622

Hom.:

Cov.:

AF XY:

0.0000784

AC XY:

AN XY:

726628

show subpopulations

African (AFR)

AF:

0.000239

AC:

AN:

33480

American (AMR)

AF:

0.000179

AC:

AN:

44716

Ashkenazi Jewish (ASJ)

AF:

0.000651

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000232

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

52220

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5760

European-Non Finnish (NFE)

AF:

0.0000863

AC:

AN:

1111986

Other (OTH)

AF:

0.0000497

AC:

AN:

60380

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.498

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<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:

0.000178

AC:

AN:

151936

Hom.:

Cov.:

AF XY:

0.000121

AC XY:

AN XY:

74280

show subpopulations

African (AFR)

AF:

0.000266

AC:

AN:

41422

American (AMR)

AF:

0.000327

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.000866

AC:

AN:

3466

East Asian (EAS)

AF:

0.00

AC:

AN:

5142

South Asian (SAS)

AF:

0.00

AC:

AN:

4810

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10590

Middle Eastern (MID)

AF:

0.00

AC:

AN:

292

European-Non Finnish (NFE)

AF:

0.000103

AC:

AN:

67920

Other (OTH)

AF:

0.000474

AC:

AN:

2108

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.486

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<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:

0.000198

Hom.:

Bravo

AF:

0.000128

EpiCase

AF:

0.000164

EpiControl

AF:

0.00

ClinVar

Significance: Benign/Likely benign

Submissions summary: Benign:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Benign:2

May 21, 2018

Athena Diagnostics

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Mar 11, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Focal segmental glomerulosclerosis 1

Benign:2

Dec 05, 2021

Genome-Nilou Lab

Significance:Benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Apr 05, 2022

Fulgent Genetics, Fulgent Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.80

CADD

Benign

1.1

(source)

DANN

Benign

0.90

PhyloP100

-1.2

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over