chr19-38728009-G-C

Variant names:

• chr19-38728009-G-C
• rs141727248
• NM_004924.6:c.2401G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004924.6(ACTN4):​c.2401G>C​(p.Val801Leu) variant causes a missense change. The variant allele was found at a frequency of 0.000000685 in 1,460,816 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V801M) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: ACTN4 NM_004924.6 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 3.66
• 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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20203769).

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

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACTN4	NM_004924.6	MANE Select	c.2401G>C	p.Val801Leu	missense	Exon 19 of 21	NP_004915.2
	ACTN4	NM_001440296.1		c.2401G>C	p.Val801Leu	missense	Exon 19 of 22	NP_001427225.1
	ACTN4	NM_001440300.1		c.2401G>C	p.Val801Leu	missense	Exon 19 of 22	NP_001427229.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	ACTN4	ENST00000252699.7	TSL:1 MANE Select	c.2401G>C	p.Val801Leu	missense	Exon 19 of 21	ENSP00000252699.2
	ACTN4	ENST00000424234.7	TSL:1	c.2401G>C	p.Val801Leu	missense	Exon 19 of 21	ENSP00000411187.4
	ACTN4	ENST00000390009.7	TSL:1	c.1744G>C	p.Val582Leu	missense	Exon 12 of 14	ENSP00000439497.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 6.85e-7 AC: 1 AN: 1460816 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726688

African (AFR) AF: 0.00 AC: 0 AN: 33478

American (AMR) AF: 0.00 AC: 0 AN: 44690

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26132

East Asian (EAS) AF: 0.00 AC: 0 AN: 39688

South Asian (SAS) AF: 0.0000116 AC: 1 AN: 86182

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52624

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 1111886

Other (OTH) AF: 0.00 AC: 0 AN: 60368

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.52
BayesDel_addAF	Benign	-0.040	T
BayesDel_noAF	Benign	-0.30
CADD	Uncertain	24
DANN	Benign	0.90
DEOGEN2	Benign	0.30	T
Eigen	Benign	-0.45
Eigen_PC	Benign	-0.20
FATHMM_MKL	Uncertain	0.94	D
M_CAP	Benign	0.047	D
MetaRNN	Benign	0.20	T
MetaSVM	Benign	-0.99	T
MutationAssessor	Benign	0.42	N
PhyloP100		3.7
PrimateAI	Uncertain	0.66	T
PROVEAN	Benign	-0.050	N
REVEL	Benign	0.18
Sift	Benign	1.0	T
Sift4G	Benign	0.91	T
Polyphen		0.0	B
Vest4		0.44
MutPred		0.35		Gain of disorder (P = 0.1601)
MVP		0.53
MPC		0.74
ClinPred		0.56	D
GERP RS		4.5
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.15
gMVP		0.95
Mutation Taster		=83/17	polymorphism

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: rs141727248; hg19: chr19-39218649;