Variant 7-100646329-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PVS1_StrongPP5_Moderate

The NM_016188.5(ACTL6B):c.1120C>T(p.Arg374*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000116 in 1,461,512 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 Pathogenic (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000012 ( 0 hom. )

Consequence

ACTL6B
NM_016188.5 stop_gained

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:2

Conservation

PhyloP100: 3.14

Variant links:

Genes affected

ACTL6B (HGNC:160): (actin like 6B) The protein encoded by this gene is a member of a family 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 subunit 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. This subunit may be involved in the regulation of genes by structural modulation of their chromatin, specifically in the brain. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2015]

ACTL6B links:

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ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PVS1

Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most 50 bp of the penultimate exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.126 CDS is truncated, and there are 2 pathogenic variants in the truncated region.

PP5

Variant 7-100646329-G-A is Pathogenic according to our data. Variant chr7-100646329-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 2500135.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ACTL6B	NM_016188.5 link	c.1120C>T	p.Arg374*	stop_gained	13/14	ENST00000160382.10	NP_057272.1	O94805
ACTL6B	NR_134539.2 link	n.1231C>T		non_coding_transcript_exon_variant	13/14

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACTL6B	ENST00000160382.10 link	c.1120C>T	p.Arg374*	stop_gained	13/14	1	NM_016188.5	ENSP00000160382.5		O94805
ACTL6B	ENST00000487125.1 link	n.682C>T		non_coding_transcript_exon_variant	6/7	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000400

AC:

AN:

250214

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135326

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000328

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000116

AC:

AN:

1461512

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727006

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000126

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.0000165

AC:

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Developmental and epileptic encephalopathy, 76

Pathogenic:2

Likely pathogenic, no assertion criteria provided	research	Houlden Lab, UCL Institute of Neurology	-	- -
Pathogenic, criteria provided, single submitter	clinical testing	Center for Genomic Medicine, King Faisal Specialist Hospital and Research Center	Mar 29, 2024	- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Pathogenic

0.58

BayesDel_noAF

Pathogenic

0.60

CADD

Pathogenic

DANN

Uncertain

1.0

Eigen

Uncertain

0.42

Eigen_PC

Uncertain

0.27

FATHMM_MKL

Uncertain

0.96

Vest4

0.46

GERP RS

2.8

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.33

Details are displayed if max score is > 0.2

DS_AG_spliceai

0.22

Position offset: -20

DS_AL_spliceai

0.33

Position offset: 6

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