chr14-68925547-T-A

Variant names:

• chr14-68925547-T-A
• rs4899272
• NM_001130004.2:c.220+11A>T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PM2 BP4_Strong

The ENST00000394419.9(ACTN1):​c.220+11A>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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: not found (cov: 29)
  • Exomes 𝑓: 0.0 (0 hom.)
  • Failed GnomAD Quality Control
• Consequence: ACTN1 ENST00000394419.9 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.136
• Publications: 14 publications found

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]

ACTN1 Gene-Disease associations (from GenCC):

• platelet-type bleeding disorder 15

  Inheritance: AD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, ClinGen
• autosomal dominant macrothrombocytopenia

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_benign. The variant received -2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.77).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000394419.9. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACTN1	NM_001130004.2	MANE Select	c.220+11A>T		intron	N/A	NP_001123476.1
	ACTN1	NM_001424012.1		c.220+11A>T		intron	N/A	NP_001410941.1
	ACTN1	NM_001424013.1		c.220+11A>T		intron	N/A	NP_001410942.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACTN1	ENST00000394419.9	TSL:1 MANE Select	c.220+11A>T		intron	N/A	ENSP00000377941.4
	ACTN1	ENST00000538545.6	TSL:1	c.220+11A>T		intron	N/A	ENSP00000439828.2
	ACTN1	ENST00000193403.11	TSL:1	c.220+11A>T		intron	N/A	ENSP00000193403.6

Frequencies

GnomAD3 genomes Cov.: 29

GnomAD4 exome Data not reliable, filtered out with message: AC0;AS_VQSR AF: 0.00 AC: 0 AN: 1455474 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 723974

African (AFR) AF: 0.00 AC: 0 AN: 33342

American (AMR) AF: 0.00 AC: 0 AN: 44326

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25854

East Asian (EAS) AF: 0.00 AC: 0 AN: 39530

South Asian (SAS) AF: 0.00 AC: 0 AN: 85580

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53248

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5754

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1107674

Other (OTH) AF: 0.00 AC: 0 AN: 60166

GnomAD4 genome Cov.: 29

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.77
CADD	Benign	6.6
DANN	Benign	0.84
PhyloP100		-0.14
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1

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

Other links and lift over

dbSNP: rs4899272; hg19: chr14-69392264;