3-179570103-A-G

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 1P and 4B. PP2BS2

The NM_004301.5(ACTL6A):ā€‹c.139A>Gā€‹(p.Arg47Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000062 in 1,614,060 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 0.0000055 ( 0 hom. )

Consequence

ACTL6A
NM_004301.5 missense

Scores

2
9
8

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.81
Variant links:
Genes affected
ACTL6A (HGNC:24124): (actin like 6A) This gene encodes a family member of actin-related proteins (ARPs), which share significant amino acid sequence identity to conventional actins. Both actins and ARPs have an actin fold, which is an ATP-binding cleft, as a common feature. The ARPs are involved in diverse cellular processes, including vesicular transport, spindle orientation, nuclear migration and chromatin remodeling. This gene encodes a 53 kDa subunit protein of the BAF (BRG1/brm-associated factor) complex in mammals, which is functionally related to SWI/SNF complex in S. cerevisiae and Drosophila; the latter is thought to facilitate transcriptional activation of specific genes by antagonizing chromatin-mediated transcriptional repression. Together with beta-actin, it is required for maximal ATPase activity of BRG1, and for the association of the BAF complex with chromatin/matrix. Three transcript variants that encode two different protein isoforms have been described. [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), ACTL6A. . Gene score misZ 2.9398 (greater than the threshold 3.09). Trascript score misZ 3.625 (greater than threshold 3.09). GenCC has associacion of gene with intellectual disability, syndromic intellectual disability, ACTL6A-related BAFopathy.
BS2
High AC in GnomAdExome4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
ACTL6ANM_004301.5 linkuse as main transcriptc.139A>G p.Arg47Gly missense_variant 3/14 ENST00000429709.7 NP_004292.1 O96019-1
ACTL6ANM_177989.4 linkuse as main transcriptc.13A>G p.Arg5Gly missense_variant 3/14 NP_817126.1 O96019-2
ACTL6ANM_178042.4 linkuse as main transcriptc.13A>G p.Arg5Gly missense_variant 3/14 NP_829888.1 O96019-2

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
ACTL6AENST00000429709.7 linkuse as main transcriptc.139A>G p.Arg47Gly missense_variant 3/141 NM_004301.5 ENSP00000397552.2 O96019-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152216
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000547
AC:
8
AN:
1461844
Hom.:
0
Cov.:
31
AF XY:
0.00000688
AC XY:
5
AN XY:
727226
show subpopulations
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:
0.00000719
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152216
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74364
show subpopulations
Gnomad4 AFR
AF:
0.00
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:
0.0000294
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.00000378

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not provided Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJan 21, 2022Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.14
BayesDel_addAF
Pathogenic
0.39
D
BayesDel_noAF
Pathogenic
0.32
CADD
Benign
21
DANN
Uncertain
1.0
DEOGEN2
Uncertain
0.43
T;.;.;T
Eigen
Benign
-0.27
Eigen_PC
Benign
-0.060
FATHMM_MKL
Uncertain
0.93
D
LIST_S2
Uncertain
0.89
D;.;D;D
M_CAP
Uncertain
0.17
D
MetaRNN
Uncertain
0.50
T;T;T;T
MetaSVM
Uncertain
0.24
D
MutationAssessor
Benign
-0.27
N;.;.;.
PrimateAI
Uncertain
0.61
T
PROVEAN
Benign
0.32
N;N;N;N
REVEL
Uncertain
0.57
Sift
Benign
0.43
T;D;D;D
Sift4G
Benign
0.40
T;T;T;T
Polyphen
0.22
B;.;.;.
Vest4
0.88
MutPred
0.55
Loss of stability (P = 0.0222);.;.;.;
MVP
0.99
MPC
1.1
ClinPred
0.92
D
GERP RS
4.5
Varity_R
0.35
gMVP
0.84

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.090
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.

Other links and lift over

dbSNP: rs1283031730; hg19: chr3-179287891; API