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GeneBe

19-38647906-A-G

Variant summary

Our verdict is Likely pathogenic. Variant got 7 ACMG points: 7P and 0B. PM1PM2PP2PP3_Moderate

The NM_004924.6(ACTN4):ā€‹c.161A>Gā€‹(p.Lys54Arg) variant causes a missense, splice region change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. Variant has been reported in ClinVar as drug response (no stars).

Frequency

Genomes: not found (cov: 32)
Exomes š‘“: 0.0 ( 0 hom. )
Failed GnomAD Quality Control

Consequence

ACTN4
NM_004924.6 missense, splice_region

Scores

4
8
6
Splicing: ADA: 0.9998
2

Clinical Significance

drug response no assertion criteria provided O:1

Conservation

PhyloP100: 5.74
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 7 ACMG points.

PM1
In a region_of_interest Actin-binding (size 268) in uniprot entity ACTN4_HUMAN there are 17 pathogenic changes around while only 4 benign (81%) in NM_004924.6
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant where missense usually causes diseases, ACTN4
PP3
Splicing scoreres supports a deletorius effect: Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
ACTN4NM_004924.6 linkuse as main transcriptc.161A>G p.Lys54Arg missense_variant, splice_region_variant 1/21 ENST00000252699.7

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
ACTN4ENST00000252699.7 linkuse as main transcriptc.161A>G p.Lys54Arg missense_variant, splice_region_variant 1/211 NM_004924.6 A1O43707-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
Data not reliable, filtered out with message: AC0
AF:
0.00
AC:
0
AN:
1218644
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
598252
Gnomad4 AFR exome
AF:
0.00
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:
0.00
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Significance: drug response
Submissions summary: Other:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Corticosteroids response Other:1
drug response, no assertion criteria providedresearchGenetic Testing Lab, Ashok and Rita Patel Institute of Integrated Study and Research in Biotechnology and Allied SciencesMay 20, 2022Depending upon patients response to standard corticosteroids therapy, they were classified to be either Steroid resistance(SRNS)(poor metabolizer) or steroid sensitive(SSNS)(likley responsive) likley responsive

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Uncertain
0.47
BayesDel_addAF
Pathogenic
0.23
D
BayesDel_noAF
Uncertain
0.090
CADD
Pathogenic
33
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.93
D;.;D
Eigen
Benign
0.088
Eigen_PC
Uncertain
0.23
FATHMM_MKL
Uncertain
0.96
D
M_CAP
Pathogenic
0.32
D
MetaRNN
Benign
0.41
T;T;T
MetaSVM
Uncertain
0.71
D
MutationAssessor
Benign
1.8
L;L;.
MutationTaster
Benign
1.0
D;D;D
PrimateAI
Pathogenic
0.87
D
PROVEAN
Benign
-2.3
N;N;N
REVEL
Uncertain
0.61
Sift
Uncertain
0.0030
D;D;D
Sift4G
Benign
0.073
T;D;D
Polyphen
0.0010
B;.;.
Vest4
0.32
MutPred
0.71
Loss of methylation at K54 (P = 0.0071);Loss of methylation at K54 (P = 0.0071);Loss of methylation at K54 (P = 0.0071);
MVP
0.96
MPC
1.1
ClinPred
0.88
D
GERP RS
4.8
Varity_R
0.43
gMVP
0.74

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
1.0
dbscSNV1_RF
Pathogenic
0.96
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

No publications associated with this variant yet.

Other links and lift over

hg19: chr19-39138546; API