14-68938736-T-C

Position:

• chr14-68938736-T-C

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_001130004.2(ACTN1):​c.106-13064A>G variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.559 in 152,050 control chromosomes in the GnomAD database, including 24,612 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.56 (24612 hom., cov: 32)
• Consequence: ACTN1 NM_001130004.2 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.607

Genes affected

ACTN1 (HGNC:163): (actinin alpha 1) 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, cytoskeletal, alpha actinin isoform and maps to the same site as the structurally similar erythroid beta spectrin gene. Three transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.84).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.762 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ACTN1	NM_001130004.2	c.106-13064A>G		intron_variant		ENST00000394419.9	NP_001123476.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ACTN1	ENST00000394419.9	c.106-13064A>G		intron_variant		1	NM_001130004.2	ENSP00000377941.4

Frequencies

GnomAD3 genomes AF: 0.558 AC: 84853 AN: 151932 Hom.: 24561 Cov.: 32

Gnomad AFR AF: 0.672

Gnomad AMI AF: 0.529

Gnomad AMR AF: 0.548

Gnomad ASJ AF: 0.327

Gnomad EAS AF: 0.782

Gnomad SAS AF: 0.671

Gnomad FIN AF: 0.632

Gnomad MID AF: 0.396

Gnomad NFE AF: 0.470

Gnomad OTH AF: 0.517

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.559 AC: 84977 AN: 152050 Hom.: 24612 Cov.: 32 AF XY: 0.569 AC XY: 42306 AN XY: 74312

Gnomad4 AFR AF: 0.672

Gnomad4 AMR AF: 0.548

Gnomad4 ASJ AF: 0.327

Gnomad4 EAS AF: 0.783

Gnomad4 SAS AF: 0.671

Gnomad4 FIN AF: 0.632

Gnomad4 NFE AF: 0.470

Gnomad4 OTH AF: 0.522

Alfa AF: 0.526 Hom.: 4386

Bravo AF: 0.554

Asia WGS AF: 0.727 AC: 2527 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.84
CADD	Benign	0.20
DANN	Benign	0.53

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

Other links and lift over

dbSNP: rs1009145; hg19: chr14-69405453;