ACTN4 p.Asn182Asn

Variant names:

• chr19-38706102-G-G
• NM_004924.6:c.

Your query was ambiguous. Multiple possible variants found:

• chr19-38706103--
• chr19-38706105-C-T

Variant summary

Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2 PP3

The NM_004924.6(ACTN4):​c. variant causes a exon region change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ACTN4 NM_004924.6 exon_region
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 9.16
• Publications: 0 publications found

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]

ACTN4 Gene-Disease associations (from GenCC):

• focal segmental glomerulosclerosis 1

  Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
• familial idiopathic steroid-resistant nephrotic syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ENSG00000298338 (HGNC:):

ACMG classification

Our verdict: Uncertain_significance. The variant received 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: No computational evidence supports a deleterious effect, but strongly conserved according to phyloP

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004924.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACTN4	NM_004924.6	MANE Select	c.		exon_region	Exon 21 of 21	NP_004915.2
	ACTN4	NM_004924.6	MANE Select	c.		3_prime_UTR	Exon 21 of 21	NP_004915.2
	ACTN4	NM_001411143.1		c.		exon_region	Exon 21 of 21	NP_001398072.1	F5GXS2

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACTN4	ENST00000252699.7	TSL:1 MANE Select	c.		exon_region	Exon 5 of 21	ENSP00000252699.2	O43707-1
	ACTN4	ENST00000424234.7	TSL:1	c.		exon_region	Exon 5 of 21	ENSP00000411187.4	F5GXS2
	ACTN4	ENST00000390009.7	TSL:1	c.		intron	N/A	ENSP00000439497.1	O43707-2

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
PhyloP100		9.2

Splicing

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

hg19: chr19-39196742;